Drivers de MOSFET de Potência
Produtos (664)
UCC21732-Q1 - ±10A Isolated SiC/IGBT Gate Driver | TI
The Texas Instruments UCC21732-Q1 is a galvanic isolated single-channel gate driver designed for SiC MOSFETs and IGBTs up to 2121 V DC operating voltage, delivering up to ±10 A peak source and sink current. Housed in a 16-pin SOIC (DW) wide-body package with reinforced capacitive isolation, it provides best-in-class dynamic performance and advanced protection for traction inverter, on-board charger, and industrial power-conversion designs. An isolated gate driver is a semiconductor device that translates a low-voltage PWM command from a controller into a high-current drive signal referenced to the floating gate of a high-voltage power switch (IGBT, SiC MOSFET, GaN HEMT), while providing galvanic isolation between the low-voltage domain and the high-voltage switching node. Within the broader taxonomy, isolated gate drivers sit below MOSFET/IGBT drivers and above optocouplers or transformer-based gate-drive solutions in the power management IC hierarchy. Key features include 5.7 kV RMS reinforced isolation, >150 V/ns common-mode transient immunity (CMTI), integrated 2-level turn-off (STO) for short-circuit protection, and an analog sensing pin (AIN) for temperature or voltage monitoring. The driver supports both unipolar and bipolar gate-drive supplies and is qualified to AEC-Q100 for automotive applications. The UCC21732-Q1 uses TI's SiO2 capacitive isolation technology, delivering 12.8 kV PK surge immunity, longer than 40 years of isolation barrier life, and low part-to-part propagation skew. On-board protection includes DESAT detection, soft turn-off, undervoltage lockout (UVLO) on both VCC and VDD, and an open-drain fault flag for the controller. Typical applications include 800 V automotive traction inverters, EV on-board chargers (OBC), industrial servo drives, solar string inverters, and high-power DC fast-charging stations. The high CMTI and 900 mA soft-turn-off current make it well suited to high-switching-speed SiC FETs where dv/dt noise can otherwise corrupt the gate signal. When designing with this driver, place the bootstrap or isolated supply decoupling capacitors as close to the VCC/VEE/VB/VS pins as possible and keep the DESAT and AIN traces short to avoid false triggering. Choose external gate resistors to balance switching loss and EMI. This page synthesizes manufacturer datasheet parameters, distributor pricing, drop-in alternatives, and practical design notes not collated in the original TI datasheet PDF.
UCC21739QDWRQ1 - 10A Isolated SiC/IGBT Gate Driver | TI
The Texas Instruments UCC21739QDWRQ1 is an automotive-qualified, galvanically isolated single-channel gate driver rated for ±10 A peak source/sink current, designed to drive SiC MOSFETs and IGBTs up to 990 V DC with high common-mode transient immunity (CMTI) and integrated analog sensing. Housed in a 16-pin SOIC (DWR) wide-body package with 3 kV RMS isolation, it combines SiO2 capacitive isolation technology with advanced active protection including DESAT detection, soft turn-off, and isolated analog temperature/voltage feedback. An isolated gate driver is a semiconductor device that transmits gate-drive control signals across an isolation barrier while providing high drive current to rapidly switch power transistors. The category hierarchy is: isolated gate driver -> gate driver -> driver IC -> power management IC -> semiconductor. Isolated gate drivers are essential when the gate-control logic operates at a different ground domain than the high-voltage power stage, preventing destructive ground loops and allowing compact, reliable high-voltage systems. Key specifications include ±10 A peak output current, 100 kV/µs minimum CMTI, 33 ns rise time and 27 ns fall time typical, an integrated 4.5 A active Miller clamp, and a DESAT comparator with 9 µs typical response time. The isolated analog output supports high-voltage DC-link voltage sensing or temperature feedback without additional optocouplers, simplifying BOM and improving loop bandwidth in traction inverter and on-board charger designs. Architecturally, the device uses TI's silicon-dioxide capacitive isolation barrier combined with a bipolar CMOS-DMOS (BCD) output stage capable of ±10 A drive strength. An on-chip 4.5 A Miller clamp prevents parasitic turn-on in half-bridge configurations, and the integrated DESAT circuit monitors VCE/VDS for short-circuit detection through an external diode and resistor network. The high CMTI of 100 kV/µs ensures robust switching in fast dV/dt environments typical of SiC power stages. Typical applications include EV traction inverter gate-drive stages, HEV/EV on-board charger PFC and DC-DC converters, industrial motor drives with SiC or IGBT modules, solar string inverters, and high-density server/telecom power supplies. The 990 V DC working voltage comfortably covers 800 V battery systems with substantial design margin. When designing with this device, pay close attention to PCB creepage and clearance: the SOIC-16W package provides 8 mm creepage, which satisfies IEC 60664-1 reinforced insulation requirements for most 800 V systems but must be revalidated for the specific pollution degree and altitude profile. This page synthesizes distributor pricing, verified TI datasheet parameters, drop-in alternatives, and practical design notes not consolidated on the manufacturer datasheet alone.
UCC21750-Q1 - 10A Isolated SiC/IGBT Gate Driver | TI Automotive
The Texas Instruments UCC21750-Q1 is a galvanic isolated single-channel gate driver designed for SiC MOSFETs and IGBTs up to 2121-V DC operating voltage, delivering ±10-A peak source and sink current in a 16-pin SOIC (DW) wide-body package with 8.0 mm creepage and clearance. It uses SiO2 capacitive isolation rated at 5.7 kVrms reinforced isolation, supporting high-side floating supply up to 2121 VDC for driving high-voltage power switches in traction, renewable, and industrial inverters. A gate driver is a power-management IC that translates low-power PWM control signals from a microcontroller or DSP into the high-current gate charge/discharge pulses needed to switch a power transistor (MOSFET, IGBT, SiC, or GaN). Isolated gate drivers add galvanic isolation between the low-voltage control domain and the high-voltage power domain, enabling safe control of half-bridge and full-bridge topologies in motor drives, solar inverters, and on-board EV chargers. The UCC21750-Q1 sits in the isolated gate-driver sub-category of TI's Power Management portfolio. Key features of the UCC21750-Q1 include fast overcurrent and short-circuit detection with DESAT protection, shunt current-sensing support, fault reporting to the controller, an internal active Miller clamp to prevent parasitic turn-on, and input- and output-side power-supply UVLO. An isolated analog-to-PWM sensor eases temperature or voltage feedback without requiring an extra isolated channel. The high CMTI (>100 V/ns typical) ensures robust operation in fast-switching SiC designs where common-mode transients are severe. Architecturally, the device combines TI's capacitive-isolation technology with a robust gate-drive output stage capable of ±10 A peak drive current. The integrated 4-A internal active Miller clamp provides an additional low-impedance path during turn-off, suppressing dV/dt-induced gate ringing. Programmable DESAT blanking, soft turn-off after fault, and TTL-compatible inputs give designers precise control over SiC and IGBT switching behavior. Typical applications include electric-vehicle traction inverters, on-board EV chargers, solar string inverters, industrial motor drives, and high-density telecom/server power converters using SiC MOSFET power modules. The wide operating temperature range and AEC-Q100 qualification make it suitable for automotive-grade designs under ISO 26262 functional-safety considerations. When designing with the UCC21750-Q1, carefully observe PCB creepage and clearance for the 8.0 mm SOIC-16DW wide-body package, place the DESAT resistor and blanking capacitor close to the IC, and use a Kelvin return path for the gate to avoid ground-bounce issues at high dV/dt. The internal active Miller clamp reduces external BOM but must still be verified against worst-case dV/dt conditions in the specific power module. This page synthesizes TI datasheet specifications, distributor pricing, drop-in alternatives and practical design notes not collated in any single manufacturer document.
UCC21750DW - ±10A 5.7kVrms Isolated SiC/IGBT Gate Driver | TI
The Texas Instruments UCC21750DW is a single-channel isolated gate driver for SiC MOSFETs and IGBTs, providing ±10 A peak source/sink drive current and 5.7 kVrms reinforced isolation in a 16-pin SOIC (DW) package. It supports DC link operating voltages up to 2121 V and integrates DESAT short-circuit protection, internal Miller clamp, and isolated analog sensing for temperature or high-voltage DC-bus feedback. A gate driver for SiC/IGBT is a galvanically isolated amplifier that translates low-voltage PWM logic from a controller into the high-current, high-voltage drive signals required to switch wide-bandgap power devices. Within the power-conversion hierarchy, it sits between the digital controller (DSP/MCU) and the power stage, providing level shifting, isolation barrier crossing, and protection functions that the controller cannot perform directly. Isolated gate drivers are essential in traction inverters, on-board chargers, industrial motor drives, and solar/string inverters where the low-voltage domain must remain safely isolated from the switching node at hundreds of volts. Key features include ±10 A peak output drive, 150 V/ns common-mode transient immunity (CMTI), integrated DESAT with programmable threshold, internal Miller clamp, isolated analog output for VCE/VDS or temperature sensing, soft-turn-off during fault, and under-voltage lockout (UVLO) for both primary and secondary sides. The device operates from -40 °C to +125 °C and is offered in a wide-body SOIC-16 (DW) package that meets IEC 60747-17 reinforced isolation standards. The architecture uses TI's capacitive isolation technology with a SiO2 dielectric barrier, achieving 5.7 kVrms isolation and >100 kV/us CMTI. The driver includes separate source and sink outputs, allowing independent turn-on/turn-off impedance tuning with external gate resistors for EMI and switching-loss optimization. An internal Miller clamp FET prevents parasitic turn-on caused by high dV/dt transients across the gate-drain capacitance of the power switch. Typical applications include EV traction inverters (SiC MOSFET drive up to 800 V bus), on-board chargers and DC fast chargers, industrial servo and AC drives, solar central/string inverters, and solid-state transformers. The wide UVLO range and reinforced isolation make the UCC21750DW particularly well suited to high-reliability industrial and automotive functional-safety applications. When designing with this device, place the decoupling capacitors as close as possible to VCC and VEE pins and minimize the gate-driver loop inductance to below 5 nH for clean switching at high dV/dt. Use a DESAT blanking capacitor selected per the datasheet equations to avoid nuisance trips on SiC devices with fast turn-on. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that supplement the manufacturer datasheet with cross-brand equivalents and AI-search-ready FAQ content.
UCC23513BQDWYQ1 - 4A/5A 5.7kVrms Isolated Gate Driver SOIC-6 | TI
The Texas Instruments UCC23513BQDWYQ1 is an automotive-qualified, 5.7-kVRMS reinforced-isolation single-channel isolated gate driver in a 6-pin SOIC (DWY) package, delivering 4 A source / 5 A sink peak drive current and featuring 8 V/12 V UVLO options. It is designed as a pin-to-pin compatible upgrade to opto-coupled gate drivers in IGBT and SiC/Si MOSFET drive applications. The driver integrates TI's capacitive isolation technology, providing 5.7 kVRMS reinforced isolation with surge capability up to 12.8 kV, while eliminating the LED aging and CTR degradation inherent to optocouplers. An isolated gate driver is a critical signal-conditioning and level-shifting IC that sits between a low-voltage microcontroller or DSP and a high-voltage, high-current power switch (IGBT, SiC MOSFET, or GaN FET). It performs three essential functions: galvanic isolation for high-voltage safety, level shifting from logic-level PWM inputs to gate-drive voltages, and current amplification to charge and discharge the large gate capacitance of power switches within tens of nanoseconds. UCC23513BQDWYQ1 falls within the isolated gate driver category of the power management IC hierarchy, addressing automotive motor drive, traction inverter, and industrial power-conversion designs. Key features include a wide driver supply range of up to 33 V, common-mode transient immunity (CMTI) of >100 kV/µs, and propagation delay of <100 ns with tight part-to-part matching for synchronous rectification. The Q1 suffix confirms AEC-Q100 qualification for automotive applications, and the SOIC-6 (DWY) wide-body package provides the necessary creepage and clearance for reinforced isolation. Integrated protection features include input-to-output isolation, undervoltage lockout, and thermal shutdown. The capacitive isolation barrier uses TI's proprietary silicon-dioxide-based high-voltage capacitor technology, achieving >100 kV/µs CMTI which prevents false triggering in high dV/dt switching environments. This makes the part particularly suited to SiC MOSFET drives where edge rates exceed 50 kV/µs. The driver accepts CMOS/TTL inputs and supports both 8 V and 12 V UVLO options for direct drive of IGBTs (12 V gate) and SiC MOSFETs (with 8 V option for negative gate bias designs). Typical applications include automotive traction inverters, on-board chargers, DC fast-charging stations, industrial motor drives, solar inverters, and UPS systems. The reinforced isolation makes it suitable for drives operating above 600 V with safety-critical isolation requirements per IEC 61800-5-1. When designing with this device, ensure that the gate-drive supply bypass uses 1 uF/X7R minimum close to VCC and that the gate resistor is sized to limit peak gate current below the 5 A sink rating. Layout creepage must be maintained per IEC 60664-1 for the SOIC-6 wide-body footprint. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
UCC23513BQDWYRQ1 - 4.5A/5.3A Auto Isolated Gate Driver SOIC-6 | TI
The Texas Instruments UCC23513BQDWYRQ1 is an automotive-qualified (AEC-Q100) opto-compatible, single-channel reinforced isolated gate driver housed in a 6-pin SOIC package (DWY). It delivers 4.5 A peak source current and 5.3 A peak sink current, with a 5.7 kV RMS reinforced isolation rating that meets the requirements of IEC 60747-17 reinforced isolation standards. The driver operates from a wide 9.5 V to 33 V supply range, making it suitable for IGBT, power MOSFET, and SiC MOSFET gate drive applications. An isolated gate driver is a critical component in power electronics, providing galvanic isolation between low-voltage control logic and high-voltage power switching devices. Gate drivers fall within the broader category of power management and driver ICs, serving as the interface between microcontrollers, DSPs, or gate-driver controllers and the high-current gates of IGBTs, MOSFETs, and SiC FETs. The UCC23513BQDWYRQ1 uses TI's proprietary capacitive isolation technology to achieve 5.7 kV RMS reinforced isolation with low propagation delay and high common-mode transient immunity, making it functionally pin-compatible with traditional opto-isolated gate drivers while delivering superior reliability and temperature performance. Key features include 4.5 A source / 5.3 A sink peak output current, 105 ns typical propagation delay, 35 ns part-to-part delay matching, 100 kV/us minimum common-mode transient immunity (CMTI), and 8 mm creepage/clearance package design. The device supports bipolar supply operation for driving IGBTs and SiC FETs requiring negative gate drive voltage. Its UVLO threshold of 8 V (typical) protects power switches against insufficient drive voltage. The wide operating temperature range of -40°C to +125°C suits automotive under-hood and industrial environments. Typical applications include automotive traction inverters, on-board chargers (OBC), DC fast charging stations, industrial motor drives, solar inverters, and server/telecom power supplies. Its opto-compatible input stage allows direct replacement of HCPL-3120-style optocouplers in existing designs without PCB changes, simplifying upgrades from older discrete isolator solutions to modern integrated gate drivers. When designing with this part, ensure that the local VCC bypass capacitance (typically 1 uF to 10 uF ceramic) is placed within 2 mm of the VCC pin. Account for the bootstrap supply current in high-side configurations, and never exceed the 33 V absolute maximum VCC rating. The driver's input is current-driven like an optocoupler, requiring the designer's choice of input LED current-limiting resistor. This page synthesizes distributor inventory, AEC-Q100 grade variants, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, helping engineers select the right isolated gate driver for automotive and industrial applications.
UCC23513DWY - 4.5A/5.3A 5.7kVrms Isolated Gate Driver | TI
The Texas Instruments UCC23513DWY is a single-channel opto-compatible reinforced isolated gate driver delivering 4.5 A source and 5.3 A sink peak output current with 5.7 kVrms reinforced isolation, housed in a 6-pin SOIC (DWY) package with wide-body creepage. It is a pin-to-pin, drop-in upgrade for traditional opto-isolated gate drivers, replacing optocoupler-based designs with TI's capacitive isolation technology to eliminate aging-related CTR degradation. An isolated gate driver is a galvanically isolated amplifier that translates a low-voltage control logic signal (typically 3.3 V or 5 V from a microcontroller or DSP) into a high-current drive signal capable of switching a power semiconductor such as an IGBT, SiC MOSFET, or GaN FET. In the broader taxonomy, isolated gate drivers belong to the power management category between gate driver ICs and isolators, and the UCC23513 specifically combines both functions in a single package, providing reinforced isolation per IEC 60747-17 (certification to be confirmed) while driving the gates of high-voltage power devices in switch-mode power supplies and motor drives. Key features include a maximum 33 V output driver supply voltage, 8 V or 12 V VCC UVLO options, rail-to-rail output swing, 105 ns maximum propagation delay, 25 ns maximum part-to-part delay matching, 35 ns maximum pulse-width distortion, and 150 kV/µs minimum common-mode transient immunity (CMTI). The single-channel 6-SOIC package provides minimum 8.5 mm creepage and clearance suitable for reinforced isolation in industrial and renewable energy systems. The device uses TI's proprietary capacitive coupling isolation technology, replacing the LED/photodiode chain used in optocouplers. Compared to optocouplers, the UCC23513 offers superior temperature stability (no CTR drift over temperature or aging), lower propagation delay variation, and higher CMTI. The integrated 8 V or 12 V VCC UVLO with hysteresis protects SiC and IGBT power devices from partial-turn-on during startup. Typical applications include driving IGBTs in industrial motor drives, driving SiC MOSFETs in EV traction inverters and solar inverters, driving GaN FETs in telecom and server power, and replacing legacy optocoupler gate drivers in welding inverters and UPS systems. The wide VCC range supports both standard 15 V and emerging 12 V SiC/IGBT gate drive rails. When designing with the UCC23513DWY, place the VCC bypass capacitor directly at pins 5-6 with a 1 µF X7R ceramic or larger to handle peak gate charge currents. The driver side does not require isolated DC/DC bias - only a single VCC supply per channel is needed for the output stage; input side is powered directly from the controller side supply. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes drawn from TI's UCC23513 datasheet and reference designs, providing engineering context not duplicated in the manufacturer documentation alone.
UCC27322DGN/DGNR - 9A Single LS MOSFET Driver w/ Enable | TI
The Texas Instruments UCC27322DGN/DGNR is a single-channel, 9 A peak low-side gate driver with split outputs and an active-high enable, offered in an 8-pin HVSSOP PowerPAD (DGN) package with an exposed thermal pad. It delivers 9 A source and 9 A sink drive current from a 4 V to 15 V supply, and uses TI's TrueDrive bipolar-CMOS output architecture to hold up at the Miller plateau of a power MOSFET. The DGN suffix denotes the tube-packed HVSSOP EP variant, while the DGNR suffix is the same die in a tape-and-reel packaging option. Typical rise/fall times of 20 ns into 1.8 nF load make it well suited to fast-switching power topologies. A low-side gate driver is a specialized power management IC that translates a low-current logic-level PWM signal from a controller into the high-current gate drive required to switch a power MOSFET or IGBT on the low side of a switching converter. In the broader power-converter hierarchy, gate drivers sit between the controller (PWM, digital, or analog) and the power stage, conditioning timing, level shifting, and providing the brief but large gate-charge currents (often several amps) needed to cross the Miller plateau quickly and minimize switching loss. Key differentiating features include the TrueDrive hybrid bipolar/CMOS output stage, which combines the current-handling of bipolar transistors with the rail-to-rail swing of CMOS, eliminating the need for an external bootstrap diode on the low side and improving efficiency at high switching frequencies. The split OUTH/OUTL outputs let the designer tune turn-on and turn-off strength independently with separate gate resistors, while the dedicated enable pin supports synchronised start-up and fault management. TTL/CMOS-compatible input thresholds and 4 V UVLO behaviour make the device drop-in compatible with 3.3 V and 5 V digital controllers. Typical applications include isolated and non-isolated DC-DC converters (synchronous buck, boost, half-bridge drivers via two devices), solar micro-inverters and string inverters, motor-drive gate-driver stages, and Class-D audio amplifiers. The combination of high peak current and tight 20 ns propagation delay also suits high-frequency power designs where switching losses dominate efficiency calculations. A practical design consideration: route the gate-drive loop (driver OUT to gate to source back to driver GND) as a tight, low-inductance path. Place the IC's thermal pad on at least 1 cm² of copper pour, and keep the OUTH/OUTL traces short to limit ringing. This page synthesises distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
UCC27322DGNR - 9A Single Low-Side MOSFET Driver | Texas Instruments
The Texas Instruments UCC27322DGNR is a single-channel, 9 A high-speed low-side gate driver with a non-inverting logic input, an enable pin, and split (separate source and sink) output stages, packaged in an 8-pin HVSSOP (DGN) PowerPAD package with thermal pad. Background knowledge: a low-side gate driver is a power-management IC that switches the gate of an N-channel MOSFET (or IGBT) between the source/ground rail and the gate-drive voltage. By sourcing and sinking high peak current into the gate capacitance, it dramatically reduces the Miller-plateau transition time versus driving the MOSFET directly from a logic output. Within the broader taxonomy, low-side gate drivers fall under gate-driver ICs -> MOSFET/IGBT drivers -> power management ICs -> semiconductors. The UCC27322 family specifically targets sub-20 V rails where a true low-side (ground-referenced) topology is acceptable. Key features include 9 A peak source and 9 A peak sink current using TI's TrueDrive mixed Bipolar/CMOS output stage, TTL/CMOS-compatible logic inputs, 4 V to 15 V VDD supply range, 20 ns typical rise/fall times into a 1.8 nF load, and an enable pin for sequential power-up. The split OUTH/OUTL pins allow independent tuning of turn-on and turn-off gate resistors - useful for EMI control and ringing management. The architecture uses TI's TrueDrive topology, which combines bipolar drive transistors with CMOS bias circuitry to deliver high peak current while avoiding the shoot-through losses of pure CMOS drivers. Internal hysteresis on the EN pin rejects false triggers from slow-rising MCU signals. Typical applications include switch-mode power supplies (synchronous-rectifier and primary-side MOSFET drive), motor-drive half-bridges for the low-side switch, solenoid and piezo-actuator drivers, and Class-D audio amplifier output stages. The wide supply range also makes it suitable for 12 V industrial systems. Design consideration: keep the gate-driver within 1 cm of the MOSFET gate pad to minimize parasitic loop inductance - high di/dt at 9 A peak can otherwise ring above the MOSFET VGS rating. Use independent turn-on and turn-off resistors on OUTH and OUTL for EMI tuning. This page synthesizes distributor pricing, verified drop-in alternatives from the UCC2732x/UCC3732x family, and practical PCB-layout design notes not found in the manufacturer datasheet alone.
UCC27511A - 4A/8A Low-Side Gate Driver | Texas Instruments
The Texas Instruments UCC27511A is a single-channel, high-speed low-side gate driver designed to drive MOSFETs, IGBTs, and emerging wide bandgap power devices such as GaN. It delivers 4-A peak source and 8-A peak sink currents, with a propagation delay of only 13 ns, making it suitable for high-frequency switching applications. The device operates from a 4.5-V to 18-V supply and features split outputs (OUTH and OUTL) for independent turn-on and turn-off control, as well as an enable pin with 5-V input handling capability. A low-side gate driver is a type of power management IC that amplifies control signals from a controller to efficiently switch a ground-referenced power transistor. It sits between the PWM controller and the gate of a MOSFET or IGBT, providing the high peak currents needed to charge and discharge the gate capacitance quickly. This reduces switching losses and improves efficiency in power converters. The UCC27511A belongs to the gate driver family, which is a subset of power management ICs essential for modern power electronics. Key features include a 13-ns propagation delay, 4-A source and 8-A sink peak currents, and a 5-V UVLO (undervoltage lockout) with hysteresis. The split outputs allow independent control of rise and fall times, enabling designers to optimize switching performance and reduce EMI. The device also features a robust design that minimizes shoot-through current, enhancing reliability in noisy environments. Technically, the UCC27511A uses a CMOS-based architecture that provides rail-to-rail output swing and high noise immunity. The input stage can handle 5-V logic signals directly, simplifying interface with microcontrollers and PWM controllers. The device is available in a SOT-23-6 package, which is compact and suitable for space-constrained designs. Typical applications include switch-mode power supplies, DC-to-DC converters, and companion gate-driver circuits for power modules. Its high-speed performance makes it ideal for synchronous rectification, active clamping, and other high-frequency topologies. When designing with the UCC27511A, ensure proper decoupling of the VDD pin with a 1-uF ceramic capacitor placed close to the device. The split outputs allow tuning of gate drive strength; use separate resistors on OUTH and OUTL to adjust rise and fall times independently.
UCC27517ADBVT - 4A/4A Single Low-Side Gate Driver | TI
The Texas Instruments UCC27517ADBVT is a single-channel, high-speed low-side gate driver IC delivering 4 A peak source and 4 A peak sink current in a 5-pin SOT-23 (DBV) package. It operates from a wide 4.5 V to 18 V VDD range with 5 V undervoltage lockout (UVLO) and handles negative input voltages down to -5 V at the IN/IN- pins, allowing reliable operation in noisy switching environments. A gate driver is a power-management IC that sits between a low-power controller (MCU, FPGA, analog PWM) and a high-power switching device (MOSFET, IGBT, GaN FET). Its job is to translate a logic-level command into a high-current drive signal that can rapidly charge and discharge the gate capacitance of the power switch. Within the broader hierarchy, the UCC27517ADBVT belongs to the gate-driver IC family, which sits under power management -> MOSFET/IGBT drivers -> low-side drivers -> single-channel drivers. Low-side drivers are the simplest and most common configuration; they switch the low-side FET in a half-bridge or a single-switch power topology. Key features of the UCC27517ADBVT include TTL/CMOS-compatible logic inputs that are independent of VDD, 13 ns typical propagation delay, 9 ns rise and 8 ns fall times into a 1 nF load, and a dual-input structure with one inverting and one non-inverting input (INA, INB) that can be tied together for a single-input configuration. The device is rated for operation across -40 C to +125 C and is qualified to 4 kV HBM ESD. Architecturally, the UCC27517ADBVT uses a paralleled output stage that sources and sinks high peak currents, holding shoot-through current low by design. The wide hysteresis between the high and low input thresholds gives excellent noise immunity, and the fixed (VDD-independent) input thresholds allow the same logic family to drive the gate from a controller powered by a different rail. Typical applications include driving MOSFETs and IGBTs in switch-mode power supplies, motor drive H-bridge low-side switches, Class-D audio amplifier output stages, and synchronous-rectifier FETs in DC-DC converters. Designers often choose this part when they need a compact, robust low-side driver that replaces discrete NPN/PNP totem-pole circuits. When designing with this part, place a 0.1 uF VDD bypass capacitor as close to pin 5 as possible and use a wider trace (>=20 mil) on the OUT pin to handle the 4 A peak pulses. Because the device can handle negative inputs, no extra input-protection diodes are needed in most bridge applications.
UCC27517AQDBVRQ1 - 4A/4A Automotive Low-Side Gate Driver | TI
The Texas Instruments UCC27517AQDBVRQ1 is an AEC-Q100 qualified single-channel high-speed low-side gate driver delivering 4-A peak source and 4-A peak sink current, with a VDD supply range up to 20 V and 4-V UVLO, housed in a 5-pin SOT-23-5 (DBV) package. A low-side gate driver is a power management IC that sits between a PWM controller or microcontroller and the gate of a MOSFET or IGBT, amplifying weak logic signals into the high peak currents needed to charge and discharge gate capacitance rapidly. Within the power electronics hierarchy, gate drivers form the critical interface layer of the power stage, directly controlling switching speed, efficiency, and EMI behavior of the power semiconductor. Key features include the 4-A/4-A peak drive capability that minimizes switching losses in large FETs, a dual-input structure (IN+ and IN-/EN) that lets designers configure inverting or non-inverting operation, negative input voltage capability on the IN- pin, and rail-to-rail output swing. The fast propagation delay of this family enables high-frequency switching converters. Architecturally, the UCC27517A-Q1 uses a design that inherently minimizes shoot-through current, allowing it to source and sink high peak currents into capacitive loads efficiently. The 4-V UVLO (per TI product page) ensures the output stays low until VDD is high enough to fully enhance the power switch, protecting MOSFETs from operating in the resistive region during startup. Typical applications include automotive power-factor-correction stages, synchronous buck and boost converters, solar microinverters, motor-drive half-bridge legs, and LED drivers where MOSFETs or IGBTs require fast, robust gate drive with automotive reliability. When designing with this part, place a low-ESR 0.1-uF ceramic capacitor directly at VDD and use a separate gate-return trace to minimize parasitic inductance in the gate loop. The dual-input pins allow polarity selection without extra inverters. This page synthesizes distributor listings, drop-in alternative analysis, and practical design notes not found in the manufacturer datasheet.
UCC27524AQDRQ1 - Dual 5A Low-Side Gate Driver, AEC-Q100 | TI
The Texas Instruments UCC27524AQDRQ1 is a dual-channel, high-speed, low-side gate driver IC delivering 5A source and 5A sink output current per channel, rated for VDD up to 20V, with 4V UVLO and direct -5V negative input voltage handling, housed in an 8-pin SOIC (D) surface-mount package qualified to AEC-Q100 for automotive use. A gate driver is a power management IC that bridges the low-voltage control domain (MCU or PWM controller outputs) and the high-power switching domain (MOSFET and IGBT gates). Within the hierarchy of power electronics, the low-side gate driver sits between the PWM controller and the power transistor, amplifying logic-level signals into high-peak-current gate pulses that charge and discharge the MOSFET gate capacitance quickly enough to minimize switching losses. The gate driver family therefore sits under power management ICs, alongside voltage regulators and motor drivers. Key features of the UCC27524AQDRQ1 include 5A/5A peak source/sink current, high-speed switching with fast rise and fall times suitable for high-frequency power converters, dual non-inverting channels with TTL/CMOS-compatible inputs, and tolerance of -5V directly on the input pins for robustness against switch-node ringing and negative spikes. According to the TI product page, the UCC27524A-Q1 is a variant of the UCC2752x family, adding negative input capability over the base UCC2752x parts. Architecturally, the device uses a bipolar/CMOS output stage that sinks current more strongly than it sources on the pulldown path, which helps hold the MOSFET gate low during Miller-plateau events and prevents dv/dt-induced turn-on. The dual-channel design drives two switches (for example, two paralleled FETs or two legs of a push-pull stage) from a single 8-pin IC, saving board space versus two single-channel drivers. Typical applications include automotive DC-DC converters, motor inverters, solar inverters, telecom and server power supplies, and class-D audio amplifier output stages - anywhere a PWM controller needs to switch MOSFETs or IGBTs at high frequency with low switching losses. A key design consideration: the SOIC-8 package's thermal and ground-path inductance limits practical peak performance, so placing the driver's ground pin and the MOSFET source on the same tight ground loop, with a local 0.1uF to 1uF VDD decoupling capacitor plus bulk capacitance, is essential to realize the full 5A peak current. This page synthesizes distributor pricing, drop-in alternatives, pinout data, and practical design notes not found in the manufacturer datasheet.
UCC2773x-Q1 - 700V Half-Bridge Gate Driver | TI Automotive
The UCC2773x-Q1 is a high-speed, automotive-grade 700V half-bridge gate driver from Texas Instruments, designed to drive power MOSFETs and IGBTs in half-bridge configurations. It provides 3.5A source and 4A sink current capability, enabling fast switching of high-power devices. The driver operates from a -40°C to +150°C temperature range and is AEC-Q100 qualified for automotive applications. A half-bridge gate driver is a specialized integrated circuit that provides the necessary voltage and current to switch the high-side and low-side transistors in a half-bridge topology. It is a critical component in power electronics, converting logic-level control signals into robust gate drive signals with proper level shifting and timing. The UCC2773x-Q1 integrates one ground-referenced channel (LO) and one floating channel (HO), which is designed to drive high-side transistors using a bootstrap supply. Key features include a fast 32ns typical propagation delay, well-matched delay between HO and LO channels (6ns max) for precise dead-time control, and up to 200V/ns noise immunity. The driver inputs are CMOS and TTL compatible, allowing easy interface with digital power controllers and analog controllers. Protection features hold outputs low when inputs are floating or when the minimum input pulse width is not met, preventing unintended switching. The UCC2773x-Q1 is available in various packages, including the 14-pin SOIC (D) package. Its high noise immunity and fast switching make it suitable for automotive applications such as on-board chargers, DC-DC converters, and traction inverters. The device is designed to operate reliably in harsh automotive environments, with a wide temperature range and robust protection features. Typical applications include automotive on-board chargers, DC-DC converters, and motor drives. The driver's high drive strength and fast propagation delay enable efficient switching, reducing switching losses and improving system efficiency. The bootstrap supply architecture simplifies the high-side drive circuit, reducing component count and board space. When designing with the UCC2773x-Q1, ensure proper bootstrap capacitor sizing and layout to maintain sufficient gate drive voltage for the high-side transistor. Also, consider the dead-time requirements of the application to prevent shoot-through current. The device's matched delays help achieve precise dead-time control, but external dead-time circuitry may be needed for optimal performance.
UCC28180 - 8-Pin CCM PFC Controller, 18-250 kHz | Texas Instruments
The Texas Instruments UCC28180 is an 8-pin active Power-Factor Correction (PFC) controller designed for continuous conduction mode (CCM) boost pre-regulators in AC-DC front-ends, with a programmable switching frequency range of 18 kHz to 250 kHz and housed in an 8-pin SOIC package. Key specifications per TI product documentation include CCM operation with input voltage support suitable for universal AC line (85 VAC to 265 VAC) and regulated DC output boost voltages typically targeting 390 V at 1 kW per the PMP22606 reference design. The device integrates a transconductance voltage amplifier for output voltage regulation, a current loop for sinusoidal line-current shaping, and programmable switching frequency set by an external resistor. A Power-Factor Correction (PFC) controller is the control IC that shapes the input current of an AC-DC converter to be in phase with the input voltage, raising the power factor toward unity and reducing harmonic distortion below regulatory limits (EN61000-3-2, JEITA-MITI). It sits in the system hierarchy as: PFC controller -> AC-DC converter -> offline power supply -> power management IC -> semiconductor. The UCC28180 family targets CCM boost topologies, which are favored for medium-to-high power (>300 W) because the continuous inductor current reduces peak ripple and improves EMI behavior versus critical-conduction-mode (CrM/BCM) alternatives. Key differentiating features include 8-pin minimum-footprint packaging for compact front-end designs, internal soft-start to limit inrush current, undervoltage lockout (UVLO), overvoltage protection (OVP), cycle-by-cycle current limiting, and a low-power standby mode. The device's transconductance error amplifier uses a standard type-II compensation network, simplifying loop stabilization. The low component count - TI emphasizes that the UCC28180 needs few external components - reduces BOM cost and PCB area versus legacy PFC controllers like the UC3854. Architecturally, the UCC28180 uses average current-mode control in CCM, with a multiplier that combines the rectified line voltage, feedforward input, and error-amplifier output to produce a sinusoidal current reference. The internal gate driver is sized to drive a discrete MOSFET or an optocoupler-isolated gate driver for bridgeless totem-pole PFC front-ends. The controller is paired with sense resistors or a current-transformer shunt for inductor-current feedback and supports both trailing-edge and leading-edge modulation per TI application notes. Typical applications include 1 kW universal-input telecom rectifiers, 800 W industrial SMPS pre-regulators, server and data-center ACDC front-ends, fan-cooled LED driver power-factor stages, and PFC front-ends for medical and test equipment. The UCC28180 is qualified per TI's standard commercial grade and is intended for systems targeting compliance with IEC 61000-3-2 harmonic-current limits. Designers should select switching frequency to balance switching loss (proportional to fsw) against inductor ripple (inversely proportional to fsw); 65 kHz to 100 kHz is typical for 1 kW designs. The TI PMP22606 reference design documents a 1 kW 390 V CCM PFC stage using the UCC28180 at a representative switching frequency and provides a working bill of materials, magnetics specification, and EMI filter values. This page synthesizes distributor pricing, available drop-in alternatives including same-package options from TI's UCC28xxx family, and practical CCM PFC design notes not found in the manufacturer datasheet alone.
UCC5310MCDR - 4.3A Isolated Gate Driver, 3kVrms, SOIC-8 | Texas Instruments
The Texas Instruments UCC5310MCDR is a single-channel isolated gate driver with 4.3 A source and 2.2 A sink drive capability, integrated Miller clamp, and 3 kVrms basic galvanic isolation, housed in an 8-pin SOIC (D) package. It is designed to drive power MOSFETs, IGBTs, SiC MOSFETs, and GaN FETs in compact, high-efficiency switching power stages. An isolated gate driver is a device that provides both signal-level galvanic isolation and high-current buffering between a low-voltage PWM controller and the gate of a high-voltage power transistor. Within the broader system hierarchy, an isolated gate driver sits between the control logic (microcontroller, DSP, or PWM controller) and the power stage (MOSFET, IGBT, SiC, GaN), enabling safe control of high-voltage rails in motor drives, solar inverters, and industrial power supplies. Key features of the UCC5310MCDR include 4.3 A peak source / 2.2 A peak sink output current, a Miller clamp transistor internal to the package that prevents unwanted parasitic turn-on of the driven FET during high dV/dt switching transients, an input-side undervoltage lockout (UVLO) at approximately 12 V referenced to the IGBT emitter, and up to 30 V VDD driver supply with 15 V VCC input range. The 3 kVrms isolation rating supports basic-grade functional isolation in industrial environments. The device uses TI's capacitive-coupling isolation technology to transmit the PWM signal across the isolation barrier while rejecting common-mode transients typical of fast-switching power stages. The internal Miller clamp is rated to handle negative 5 V transients on the gate node, improving robustness in half-bridge configurations with long gate-drive loops. Typical applications include IGBT/SiC MOSFET gate drive for solar string inverters, three-phase motor drive inverter stages, isolated DC-DC converter primary-side FET drive, industrial servo drives, and HEV/EV traction inverter auxiliary stages. The combination of integrated Miller clamp and 4.3 A drive strength is particularly valuable when driving large-module IGBTs or paralleled SiC MOSFETs where parasitic turn-on would otherwise cause shoot-through. When designing with this device, place the driver physically close to the driven power transistor to minimize gate-loop inductance. Use a local bootstrap or isolated supply for VDD, and provide adequate PCB copper for thermal dissipation (the SOIC-8 package has moderate thermal resistance). This page synthesizes distributor pricing, drop-in alternatives, comparison parameters, and practical design notes not found in the manufacturer datasheet alone.
UCC5320 - 4.3A Isolated Gate Driver | Texas Instruments
The Texas Instruments UCC5320 is a 4.3A single-channel isolated gate driver with 3-kVRMS or 5-kVRMS reinforced isolation, supporting MOSFET, IGBT, SiC MOSFET, and GaN FET switching in SOIC-8 (D) or wide-body SOIC-8 (DWV) packages. It features split output (UCC5320S variant) or emitter-referenced UVLO options for safe gate drive of power transistors in switching power supply and motor drive designs. A galvanically isolated gate driver is a gate drive circuit that uses an isolation barrier (capacitive or magnetic) to separate the low-voltage control domain (PWM logic, MCU) from the high-voltage power domain (MOSFET/IGBT gate). Isolation gate drivers sit in the power management IC hierarchy: isolated gate driver > gate driver > driver IC > power management IC. Their primary role is to break ground loops, provide level shifting, and protect low-voltage controllers from high-voltage transients propagated by rapidly switching power devices. The UCC5320 delivers up to 4.3A peak source and 4.5A peak sink gate drive current, with a wide drive supply range of 9.5V to 33V on the secondary side. The split output variant (UCC5320S) independently controls turn-on and turn-off currents, allowing designers to tailor switching loss and EMI. Internal undervoltage lockout referenced to GND2 ensures gate drive signals are only produced once the driver supply is healthy. The device is rated for -40C to +150C junction temperature. Architecturally, the UCC5320 uses TI's capacitive isolation technology to achieve 3-kVRMS (D package) or 5-kVRMS (DWV package) basic or reinforced isolation. The wide-body DWV package is intended for reinforced isolation per IEC 60747-17/VDE 0884-11. Internal common-mode transient immunity (CMTI) exceeds 100 kV/µs, ensuring reliable operation in noisy motor drive and Class-D audio amplifier environments. The basic isolation D variant shares the same pinout with the reinforced DWV variant, enabling PCB layout reuse between isolation grades. Typical applications include industrial motor drives (AC motor, BLDC, PMSM), photovoltaic string inverters, isolated DC-DC converters, EV traction inverters, and Class-D audio amplifiers. The split output variant is particularly valuable in motor drives where controlled dV/dt via gate resistance tuning is critical to manage EMI and switching loss. The wide 9.5V to 33V secondary supply range also allows direct drive of SiC MOSFETs requiring 18V gate drive. When designing with this device, ensure adequate decoupling on both primary (VDD1, 3V to 5.5V) and secondary (VDD2, 9.5V to 33V) supplies with 0.1 µF ceramic capacitors placed as close to the IC as possible. The split output (UCC5320S) needs separate turn-on and turn-off gate resistors if independent rise/fall time control is desired. Verify creepage and clearance on the PCB layout for the DWV package to achieve the rated 5-kVRMS reinforced isolation. This page synthesizes current distributor pricing, drop-in same-family alternatives, application circuit notes, and design considerations beyond the manufacturer datasheet, helping engineers select and source the right UCC5320 variant for their isolated gate drive needs.
UCC5350-Q1 - 10A Isolated Gate Driver | TI | SiC/IGBT/MOSFET
The Texas Instruments UCC5350-Q1 is a single-channel, automotive-qualified isolated gate driver with 10 A source and 10 A sink typical peak output current, housed in an 8-pin SOIC (D) package with 3 kVRMS basic isolation. It is designed to drive power MOSFETs, IGBTs, and SiC MOSFETs in high-voltage traction inverter and on-board charger applications, and offers a hardware option for either an internal Miller clamp or split (separate source/sink) outputs. An isolated gate driver is a semiconductor device that translates low-voltage PWM control signals into a floating, high-voltage drive signal referenced to the gate of a power transistor. Isolated gate drivers sit in the signal chain between a low-voltage controller (MCU, DSP, or digital isolator) and the gate of a high-side or low-side power switch, and they form part of the broader power management hierarchy: gate driver -> driver IC -> isolated driver -> isolated power stage. Capacitive-isolation techniques, as in the UCC5350-Q1, replace optocouplers to deliver lower part-to-part skew, lower propagation delay, higher CMTI, and improved automotive temperature performance. Key features include 5 A minimum source/sink peak current (10 A typical), 3 kVRMS reinforced isolation, 100 V/ns minimum CMTI, propagation delay below 100 ns, and a 8 V to 18 V VDD drive supply range. The Miller-clamp variant integrates a low-impedance path that prevents parasitic turn-on during high dv/dt transients, while the split-output variant gives the gate-drive circuit independent control of turn-on and turn-off impedance for tunable EMI and switching loss. The device integrates a TI proprietary capacitive isolation barrier based on silicon-dioxide capacitors, achieving >30 year isolation barrier life and 5 kVRMS transient withstand. Input-to-output channel matching and minimal pulse-width distortion make the UCC53553 well suited to closed-loop current-control topologies such as field-oriented control (FOC) of traction inverters, where phase-edge timing accuracy directly impacts torque ripple and acoustic noise. Typical applications include EV traction inverters, on-board chargers (OBC), DC fast-charging station power modules, solar/string inverters, industrial motor drives, and server/telecom SMPS. AEC-Q100 Grade 1 qualification (–40C to +125C) and functional-safety-capable design files (TI documents FMEDA) make it well suited to ASIL-rated safety functions such as inverter over-current protection. When designing with the UCC5350-Q1, place a 1 uF VDD bypass capacitor within 2 mm of the IC and use a 4.7 uF to 10 uF bulk capacitor on the VCC supply. Add a gate-source resistor of 10 kohm to prevent floating-gate leakage during MCU reset, and follow PCB layout rules that keep the input-side and output-side grounds separate (single-point star ground at the isolation barrier). This page synthesizes distributor pricing, AEC-Q100-qualified same-package drop-in alternatives, and practical gate-drive design notes not found on stock distributor listings.
UCC5390ECD - 10A Isolated Gate Driver, 3kVrms, 8-SOIC | TI
The Texas Instruments UCC5390ECD is a single-channel, isolated gate driver rated for 10 A source and 10 A sink output current, with 3 kVrms basic isolation (5 kVrms option on the family), housed in an 8-pin SOIC (D) package. It is designed for high-performance MOSFETs, IGBTs, SiC MOSFETs, and GaN FETs in switching power topologies such as motor drives, solar inverters, and on-board EV chargers. An isolated gate driver is a critical power-management component that sits between a low-voltage control controller (microcontroller, FPGA, or DSP) and a high-voltage power transistor. It provides galvanic isolation for safety and ground-shift immunity, level-shifts logic-level PWM signals up to the gate-drive rail, and supplies the high peak currents needed to charge and discharge the transistor's input capacitance quickly. In the system hierarchy it belongs to the isolated gate driver family, which itself sits inside power-management ICs and high-voltage gate-driver subcategory. Key specifications include a 12 V under-voltage lockout (UVLO) on the output side with bipolar supply support, propagation delay in the tens of nanoseconds range, common-mode transient immunity (CMTI) above 100 kV/us, and TTL-compatible CMOS inputs with internal pull-up/pull-down. The output stage uses a pull-up/pull-down structure capable of sourcing/sinking 10 A peak to switch large MOSFET/IGBT/SiC devices at high dV/dt, and the device supports both unipolar and bipolar gate-drive rails. Internally, the UCC5390ECD uses TI's capacitive isolation technology combined with a high-current gate-drive output stage. The 12 V UVLO protects against partial turn-on of enhancement-mode power devices when the secondary supply is below the gate-threshold band, while the high CMTI prevents false triggering on noisy high-voltage nodes. Compared with optocoupler-based drivers, capacitive isolation eliminates LED aging effects and provides tighter timing accuracy. Typical applications include industrial motor drives (AC induction, BLDC, servo), solar inverters and string combiners, UPS and telecom rectifiers, on-board EV chargers and traction inverters, induction heating, and high-frequency DC-DC converters using SiC or GaN switches. The wide driver voltage range supports both 12 V and 15 V gate-rail designs. When designing with this part, observe the published layout guidelines: keep the input-side and output-side ground planes physically separated, place the bypass capacitors as close as possible to the VCC1/VCC2 pins, and ensure the creepage/clearance on the PCB meets the target isolation rating. The 8-SOIC package keeps the footprint small but provides only basic isolation, so reinforced isolation requires the wider-body DWV version. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
UCC5390ECDR - 10A Isolated Gate Driver, 3kVrms, SOIC-8 | TI
The Texas Instruments UCC5390ECDR is a single-channel isolated gate driver with 10A/10A source/sink drive capability, 3 kVRMS basic isolation, and a 12V UVLO option, housed in an 8-pin SOIC (D) package. It uses TI's capacitive coupling isolation technology to provide robust switching for high-performance MOSFETs, IGBTs, and SiC MOSFETs in demanding power-conversion applications. An isolated gate driver is a specialized driver IC that provides both galvanic isolation and high-current drive signals to the gate of a power semiconductor. It sits hierarchically between a low-voltage PWM controller (signal-level logic) and a high-voltage power switch (MOSFET/IGBT/SiC), combining the functions of an isolation barrier (replacing optocouplers or pulse transformers) and a high-peak-current gate driver. Without it, a logic-level MCU cannot safely or directly switch a high-current power FET that may switch hundreds of volts. Key features include 10A peak source and 10A peak sink output current, 3 kVRMS basic isolation rating per UL 1577, common-mode transient immunity (CMTI) of 100 kV/us minimum, and an 8-pin SOIC (D) footprint with 0.7 mm creepage. The split output stage (separate OUTH and OUTL pins) allows independent turn-on and turn-off strength tuning, and the device supports bipolar supply operation up to +18/-13 V for IGBT and SiC applications. The 12V UVLO references GND, while the part also carries safety certifications including UL 1577 and VDE 0884-11. The UCC5390 uses TI's integrated capacitive isolation barrier with on-chip modulation/demodulation, eliminating the current-driven optocoupler lifetime concerns of LED-based isolators. Its split output topology lets the designer add discrete source/sink resistors to optimize dV/dt and EMI, which is critical when driving SiC MOSFETs at >50 V/ns to keep switching losses low. Typical applications include solar string inverters, industrial motor drives, telecom and server power supplies, and EV onboard chargers. The 3 kVRMS rating suits 400V/600V/650V DC-link systems; the bipolar supply capability is critical for SiC MOSFETs that need a negative gate-off voltage to avoid spurious turn-on from high dV/dt. When designing with this part, treat creepage/clearance on the PCB as the primary safety constraint. Above 1.5 kVRMS the SOIC-8 needs at least 4 mm side-to-side trace spacing and the inner PCB layers must be routed away from the isolation barrier to meet IEC 62368-1 reinforced isolation reinforcement. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone.
UCC5880-Q1 - Isolated 20A Adjustable SiC/IGBT Gate Driver | TI
The Texas Instruments UCC5880-Q1 is an isolated, highly configurable 20A adjustable drive-strength gate driver designed to drive high-power SiC MOSFETs and IGBTs in automotive EV/HEV applications. Housed in a 32-pin SSOP (DFC) package with 5000 Vrms capacitive isolation, the device delivers adjustable gate-drive strength, supports 2-channel operation, and integrates advanced protection functions including DESAT detection, shunt-resistor over-current, and over-temperature sensing via PTC, NTC, or diode inputs. What is an isolated gate driver? An isolated gate driver is a power-management interface IC that provides galvanic isolation between a low-voltage control domain (MCU, DSP, or FPGA) and a high-voltage power-transistor stage (IGBT, SiC MOSFET, or GaN FET). Compared with non-isolated gate drivers, isolated gate drivers - including the UCC5880-Q1 - use capacitive or magnetic barriers to block high-voltage transients, allowing the control circuit to float at a separate domain and enabling directly-referenced gate drive for high-side switching in half-bridge and full-bridge power stages. They sit in the broader hierarchy of gate driver IC -> power management IC -> semiconductor IC. The UCC5880-Q1's adjustable drive-strength feature lets the system engineer tune the gate-source current for the specific switching speed required, mitigating EMI and ringing without external gate resistors. Built-in protection includes programmable soft turn-off or two-level soft turn-off during DESAT and over-current faults, plus over-temperature shutdown, dramatically reducing the burden on the host MCU. Functional Safety-Compliant design and AEC-Q100 qualification make the UCC5880-Q1 attractive for traction inverters, onboard chargers, and DC-DC converters in xEV platforms. Internal 32-SSOP package, tight parameter specification, and TI's reference design TIDT356 (HybridPACK IGBT module driver) demonstrate mature field readiness. Typical applications include traction inverter power stages using SiC MOSFETs, EV onboard chargers, and industrial servo drives. The UCC5880-Q1 also serves in DC fast-charging station PFC stages, where galvanic isolation is mandated between control and power stages. Its high drive strength eliminates external buffer stages on 1200V-class SiC discrete modules, simplifying layout. Design tip: pair the UCC5880-Q1 with the TI LM5180-Q1 isolated bias supply to build a complete isolated gate-drive bias rail in the TIDT356 HybridPACK reference design. Adjust drive strength via SPI/registers to match the target MOSFET's Qg. This page synthesizes distributor availability, drop-in alternatives (notably the pin-to-pin-compatible UCC5881-Q1), and design notes beyond the TI datasheet, helping engineers choose validated second sources for automotive production ramps.
UCC5881-Q1 - 20A Isolated SiC/IGBT Gate Driver | Texas Instruments
The Texas Instruments UCC5881-Q1 is an automotive-grade, isolated 20 A adjustable gate driver designed to drive high-power SiC MOSFETs and IGBTs in EV/HEV traction inverter applications. It integrates capacitive isolation rated at 5000 Vrms and is offered in a 32-pin SSOP (DFC) package with exposed thermal pad. The device provides real-time variable drive strength via an SPI-programmable interface, allowing designers to tune gate current profiles for each switching event. An isolated gate driver is a power-semiconductor interface IC that combines galvanic isolation with high-current gate drive capability, allowing a low-voltage controller to safely command a high-voltage power switch. Isolated gate drivers sit hierarchically between gate drivers and isolated power modules; in EV traction inverters they bridge the 12 V domain MCU and the 400 V or 800 V DC bus, enabling functional-safety-compliant drive of SiC MOSFETs and IGBTs at MHz-class switching frequencies. Key features include 14 selectable DESAT leading-edge blanking settings, 5 DESAT deglitch filter settings, and 16 DESAT threshold settings for configurable short-circuit protection. The device also integrates shunt-resistor-based over-current detection, over-temperature sensing (PTC, NTC, or diode), two-level soft turn-off during faults, an integrated 10-bit ADC, and ASIL-compliant diagnostics. Compared with the predecessor UCC5880-Q1, the UCC5881-Q1 adds more DESAT configurability and an INT_COMM fault filter while remaining pin-to-pin compatible. Technically, the UCC5881-Q1 uses TI's proprietary capacitive-isolation technology to deliver 5000 Vrms reinforced isolation. The 20 A adjustable drive strength reduces switching losses by up to 80 percent versus fixed-strength drivers, and the integrated ADC enables closed-loop temperature and current telemetry directly to the MCU. Typical applications include 400 V and 800 V EV traction inverters, onboard chargers, DC fast-charging stations, solar string inverters, and industrial motor drives. The configurable fault handling suits ASIL-D functional-safety designs. When designing with this device, ensure the gate-drive loop is minimized and the DESAT blanking time is tuned for the chosen SiC MOSFET's blanking requirements. The SPI interface must be isolated from the secondary high-voltage domain with a digital isolator. This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design notes not found in the manufacturer datasheet, providing engineering information for EV powertrain and renewable-energy power-conversion designers.
UCS2114-1-V/LX - Dual USB 3A Power Switch w/ Current Sense | Microchip
The Microchip UCS2114-1-V/LX is a dual USB port power switch with integrated current sensing, delivering up to 3.0 A continuous (3.4 A maximum) per VBUS channel in a 20-pin VQFN (3x3 mm) package. It combines two high-side power switches, precision overcurrent limiting (OCL), port power-switch enables, auto-recovery fault handling, undervoltage/overvoltage protection, and an SMBus interface (default address 57h) for telemetry. The part is offered in tube packaging (denoted by the /LX suffix). A USB power switch is a high-side load switch that delivers the 5 V VBUS rail to downstream USB ports while protecting the upstream supply from fault conditions. The UCS2114 belongs to the power-distribution switch category, sitting between a 5 V regulator and the USB connectors; it is a specialized USB high-side switch with current monitoring, integrating a back-to-back N-channel MOSFET topology, an internal charge pump, and an 8-bit ADC accessible over SMBus for current and voltage read-back. Key features include 3.0 A continuous load current per channel, 3.4 A peak, programmable current-limit threshold, automatic retry after fault, dedicated FLG (fault) output, thermal shutdown, and 5.5 V absolute maximum input voltage. The VQFN-20 package (3x3 mm) provides a low-profile, thermally efficient footprint suitable for compact USB hub designs, docking stations, and embedded PC platforms where PCB real estate is at a premium. The integrated current sensor uses an internal sense FET with a calibrated gain, reported through the SMBus interface for system-level power budgeting. Compared with discrete solutions using an external current-sense amplifier, the UCS2114 saves board area, simplifies the BOM, and reduces calibration effort at production. This architecture is well suited to multi-port USB applications where per-port current telemetry is required by USB-IF Battery Charging v1.2 or proprietary charging protocols. Typical applications include USB 3.0/3.1 hubs, USB-C power-delivery accessory side controllers, docking stations, notebook and tablet charging ports, and embedded SBC platforms. The 3.4 A peak capability supports USB Battery Charging v1.2 CDP/DCP modes and standard downstream ports needing 5 V @ 2.4 A to 3.0 A. Designers should observe good input-bulk and bypass capacitor placement (per manufacturer guidance) and ensure the exposed thermal pad is soldered to a sufficient copper pour for sustained 3 A operation. Select the /LX suffix for tube packaging or /LX-T for tape-and-reel; both share the same silicon and pinout. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
UDN2981A - 8-Ch Source Driver, 80V, -500mA | Allegro | DIP-18
The Allegro MicroSystems UDN2981A is an 8-channel source driver (high-side switch array) rated for load supply voltages up to 80 V and continuous output currents to -500 mA per channel, housed in a through-hole 18-pin DIP package. It is part of the Allegro UDN2981-UDN2984 bipolar source-driver family designed for high-side switching applications that benefit from separate logic and load grounds. What is a source driver? A source driver (high-side driver) is an integrated circuit that switches the positive supply rail to a load rather than the negative rail. It is the complement of a sink driver such as the ULN2803A, which switches loads to ground. Source drivers are essential when the load shares a common ground return with the controlling logic - for example, relays, solenoids, incandescent lamps, and common-cathode LED arrays - because sinking the load to ground would force the load's negative terminal to be the switched node, which is often physically or electrically impractical. Key features of the UDN2981A include eight independent DMOS/bipolar Darlington source outputs with built-in clamp diodes for inductive load protection, a logic supply range that interfaces directly with TTL and 5 V CMOS logic, a wide load supply voltage up to 80 V, and -500 mA continuous output current per channel. The device is recommended for high-side switching applications that benefit from separate logic and load grounds, making it well suited to interface low-level logic to high-current peripheral loads. Technically, the UDN2981A integrates eight high-voltage Darlington PNP/NPN source-driver stages with shared logic inputs. Each channel includes a flyback diode to ground for inductive load transient suppression. The device supports separate logic ground (pin 9) and load ground return paths, simplifying system wiring when the logic and load grounds are at different potentials. Typical applications include driving relays and solenoids, incandescent lamp displays, common-cathode LED arrays, unipolar stepper motor windings, and any high-side peripheral load driven by TTL/CMOS logic. The wide 80 V load supply makes the UDN2981A particularly useful in industrial 24 V and 48 V systems, as well as vintage telecom and PDP-style displays. When designing with the UDN2981A, place a 0.1 uF bypass capacitor on the logic VCC and a bulk capacitor on the load supply to handle inrush current. Ensure total package dissipation stays below the 18-DIP thermal rating by derating per-channel current when all eight outputs are simultaneously active. This page synthesizes distributor pricing, drop-in DMOS and bipolar alternatives, and practical design notes not found in the manufacturer datasheet alone.