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TEA2096T - GreenChip Dual Synchronous Rectifier Controller | NXP
The NXP Semiconductors TEA2096T is a GreenChip dual synchronous rectifier (SR) controller IC for switched-mode power supplies, driving two SR MOSFETs from an 8-pin SO (SO-8) package with an adaptive gate drive method for maximum efficiency at any load. A synchronous rectifier controller replaces the conventional output diodes of an SMPS secondary side with MOSFETs, switching them on only when forward current flows. Because a modern low-RDS(on) MOSFET dissipates far less power than a Schottky diode at high current, SR control is a key efficiency lever in the power-supply hierarchy (SR controller -> power supply controller -> power management IC). The TEA2096T is a dedicated secondary-side controller for synchronous rectification on resonant converters, such as LLC and partially resonant (quasi-resonant) topologies used in high-efficiency adapters and supplies. Key features include two integrated driver stages for driving two SR MOSFETs, an adaptive gate-drive scheme that maximizes efficiency across the full load range, and GreenChip design principles that minimize standby and light-load losses. Dedicated sensing inputs allow the controller to detect the conduction state of each SR MOSFET and prevent cross-conduction and premature turn-off, which protects efficiency gains in continuous-conduction and burst modes. Technically, the device handles the challenging SR timing problem in resonant converters: because resonant tank current is sinusoidal, naive SR control causes body-diode conduction losses or reverse-current events. The TEA2096T adaptively adjusts turn-on and turn-off timing based on measured drain-source voltage behavior, ensuring the SR MOSFETs conduct only during the proper current interval. This is especially valuable at light load and in discontinuous operation, where fixed-timing SR controllers lose efficiency or risk shoot-through. Typical applications include LLC resonant converters in notebook adapters, USB-PD chargers, LED TV power supplies, server and telecom auxiliary supplies, and high-density industrial power modules where secondary-side diode loss dominates. Two driver channels allow a center-tapped secondary or full-wave SR arrangement from a single controller. Design consideration: proper layout of the sense connections is critical; keep the drain-sense traces short and away from gate-driver loops to avoid false triggering from dv/dt, and follow NXP layout guidance in the TEA2096T datasheet. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
TEA2096T/1J - GreenChip Dual SR Controller | NXP | LLC Power
The NXP TEA2096T/1J is a GreenChip dual synchronous rectifier (SR) controller IC for the secondary side of switched-mode power supplies, housed in an 8-pin SO (SO-8) package. It is a dedicated SR controller for resonant converters such as LLC topologies, with two driver stages for driving two SR MOSFETs and an adaptive gate drive method for maximum efficiency at any load. A synchronous rectifier controller replaces the rectifier diodes on the secondary side of an SMPS with MOSFETs driven by a dedicated controller, dramatically reducing conduction losses. Within the power management hierarchy, the TEA2096T sits in the secondary-side controller category of switching controller ICs. Where a diode drop of 0.5 V to 0.7 V wastes power at high output currents, a synchronously driven MOSFET with low RDS(on) can cut that loss by a factor of 5 to 10, which is why SR controllers are standard in high-efficiency adapters and server power stages. Key characteristics of the TEA2096T include its dual-channel architecture (two SR MOSFET drivers in one SO-8 package), an adaptive gate drive scheme that optimizes conduction time and dead-time at any load, and GreenChip design principles targeting high efficiency and low standby power. The dual-driver integration reduces external component count versus single-channel SR controllers in center-tapped secondary windings. Technically, the TEA2096T senses the drain-source voltage of the SR MOSFETs to detect current direction, turning the gates on when the body diode conducts and off before reverse current flows. This adaptive control prevents cross-conduction and reverse-current losses that reduce efficiency in fixed-timing SR schemes, especially at light load where fixed-delay controllers typically mis-time gate transitions. Typical applications include LLC resonant converters in AC-DC adapters, USB-PD fast chargers, and server/telecom power supplies with center-tapped or full-bridge secondary rectification. High-current 5 V and 12 V rails benefit most, where diode losses dominate. Design consideration: proper placement of the sense lines close to the SR MOSFET drains is critical; long sense traces pick up switching noise and can cause false turn-on, degrading efficiency or damaging the MOSFETs. This page adds information gain beyond the datasheet: distributor pricing with quantity breaks, alternative sourcing options, and practical design notes compiled from manufacturer and distributor data as of 2026-09-13.
TEA2206T/1 - Active Bridge Rectifier Controller SOIC-8 | NXP
The NXP Semiconductors TEA2206T/1J (TEA2206T/1) is an active bridge rectifier controller that replaces the two low-side diodes of a traditional diode bridge with MOSFETs, housed in an 8-pin SOIC (SO8) package. Driving low-ohmic high-voltage external MOSFETs, it cuts typical rectifier-diode forward-conduction losses by 50% and can improve converter efficiency by up to approximately 0.7% at 90 V (AC) mains voltage. An active bridge rectifier controller is a power-management IC that senses mains polarity and actively drives MOSFETs in place of rectifier diodes. Within the power-conversion hierarchy (rectifier -> diode bridge -> PFC front end -> switch-mode power supply), it addresses the front-end conduction loss that constrains efficiency in desktop and notebook PC power supplies, adapters, and other AC-DC converters. Key features include replacement of the two low-side bridge diodes with externally driven MOSFETs, a 50% reduction in typical diode forward-conduction losses, and up to 0.7% efficiency improvement at low-line 90 V AC input. According to NXP, a switched-mode power supply using the TEA2206T typically consists of a mains filter followed by a boost-type power-factor controller, with a resonant controller, flyback controller, or any other topology downstream. Technically, the controller monitors the mains waveform via the L and R pins, and NXP explicitly notes in the datasheet that special attention must be paid to the connection of these pins, since correct sensing is essential for safe MOSFET commutation and prevention of cross-conduction. The device integrates the control, sensing, and gate-drive logic needed to switch the MOSFETs synchronously with the mains half-cycles. Typical applications include desktop and notebook PC power supplies, AC-DC adapters, and high-efficiency switch-mode power converters where the diode-bridge loss is a meaningful share of total dissipation, especially at low-line input voltages. When designing with this part, follow the NXP datasheet guidance on L and R pin connections and select low-RDS(on) high-voltage MOSFETs so that conduction losses remain well below the diode losses being replaced. This page synthesizes distributor pricing, availability, datasheet references, and practical design notes not found in the manufacturer datasheet, providing a single citable engineering resource.
TEA2208T/1 - Active Bridge Rectifier Controller | NXP
The NXP Semiconductors TEA2208T/1 is a full-wave active bridge rectifier controller that replaces the traditional diode bridge with low-ohmic high-voltage external MOSFETs, delivered in a 14-pin SOIC package. An active bridge rectifier controller is a power management IC that drives four external MOSFETs in an H-bridge configuration so that AC mains is rectified with conduction losses far below those of a conventional 4-diode bridge. In the power-conversion hierarchy it sits at the input stage of an AC-DC converter, ahead of the main switching stage, and directly determines end-to-end efficiency of desktop PC power supplies and notebook adapters. Key features include high-current rail-to-rail MOS output drivers that minimize driver dissipation and gate-charge losses to as low as 2 mW combined, elimination of rectifier diode forward-conduction losses, and a silicon-on-insulator (SOI) process for high-voltage robustness. According to NXP product data, converter efficiency improves by up to about 1.4% at 90 V AC mains input - a significant gain in high-volume, energy-regulated applications. Technically, the TEA2208T senses AC line polarity and sequences the four gate drivers so that only the diagonal MOSFET pair conducts in each half cycle. Because the external MOSFETs are selected by the designer, conduction loss scales with RDS(on) rather than a fixed diode Vf, allowing efficiency optimization across a wide power range. The SOI process isolates high-voltage domains on chip, supporting direct interfacing with the rectifier node. Typical applications include desktop and notebook PC power supplies, server and adapter AC-DC front ends, and high-density power converters subject to 80 PLUS and similar efficiency regulations. Design-wise, select external MOSFETs with low RDS(on) and adequate VDS rating for the applied mains; the controller itself dissipates very little, but MOSFET choice determines total rectifier loss. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
TEA2209T/1 - Active Bridge Rectifier Controller | NXP
The NXP Semiconductors TEA2209T/1 is an active bridge rectifier controller IC that replaces the traditional diode bridge in AC-to-DC power converters, driving four external high-voltage MOSFETs from a 16-pin SO (SOIC-16) package. Efficiency of the power converter can improve by up to approximately 1.4 percent at 90 V (AC) mains voltage by eliminating typical rectifier diode forward conduction losses. An active bridge rectifier is a power-management circuit that substitutes synchronous MOSFET switches for the four silicon diodes of a conventional bridge rectifier. Because the conduction loss of a diode bridge (typically two diode forward voltage drops per half-cycle) scales with load current, replacing it with low-ohmic MOSFETs materially reduces dissipation in mains-powered converters. In the power-system hierarchy, the TEA2209T/1 sits at the front end of an AC-DC switching converter, upstream of a boost-type power-factor-correction stage, which is a mandatory follower circuit because the active bridge output is a rectified sine wave. Key features include direct drive of all four bridge MOSFETs without external gate-drive circuitry, compatibility with low-ohmic high-voltage external MOSFETs, and elimination of diode forward conduction losses. According to the NXP product page, the resulting converter efficiency gain reaches up to about 1.4 percent at 90 V AC mains, which is significant in high-volume desktop and notebook PC power supplies where energy-efficiency regulations impose strict loss budgets. From a technical perspective, the TEA2209T senses the instantaneous polarity of the AC mains and the bridge output, then commutates the MOSFET pairs synchronously so that current always flows through two low-ohmic channels instead of two diode junctions. The controller operates with the rectified sine-wave output feeding a boost PFC stage, a topology combination NXP documents in the TEA2209T datasheet functional description. Proper MOSFET selection and gate-drive integrity determine the achievable efficiency improvement. Typical applications include desktop and notebook PC power supplies, adapters, and other off-line flyback or PFC front-end converters where the diode-bridge loss is a meaningful fraction of total budget. DigiKey lists the TEA2209T/1J variant under Power Management - Specialized PMIC for these markets. A key design consideration is that the active bridge requires a boost-type PFC circuit after it; the TEA2209T must not be used in converters without a PFC follower, since its output is a rectified sine wave rather than smooth DC. Careful PCB layout of the gate-drive and current-sense paths is also essential. This page synthesizes distributor availability, same-family drop-in alternatives, and practical design guidance beyond the raw manufacturer datasheet content.
TEA2226AT/1 - Digital Configurable LLC Resonant Controller | NXP
The NXP Semiconductors TEA2226AT/1 is a digital configurable controller for high-efficiency resonant (LLC) power supplies, delivered in a 16-pin SO (SOIC) surface-mount package. It integrates a high-voltage silicon-on-insulator (SOI) controller for high-voltage start-up, integrated gate drivers, a level shifter, protection circuitry, and circuitry that ensures zero-voltage switching (ZVS). A resonant LLC controller is a type of switched-mode power-supply (SMPS) control IC that drives a half-bridge resonant converter operating at or near the resonant frequency of an LC tank. Within the power management hierarchy (AC-DC controller -> resonant converter controller -> power management IC), LLC topologies enable very high efficiency and low electromagnetic interference because switches toggle under zero-voltage switching conditions, minimizing switching losses. Key features of the TEA2226AT include fully digital configurability, which dramatically reduces external component count and simplifies power-supply design; integrated high-voltage start-up circuitry that removes the need for a separate auxiliary low-power start-up supply; built-in drivers and level shifting for the high-side and low-side bridge switches; and comprehensive protection functions. According to NXP, supplies built on this controller meet efficiency regulations including Energy Star, the US Department of Energy (DoE), the EU Eco-design directive, and the European Code of Conduct. The digital architecture allows designers to configure operating parameters in firmware or via configuration rather than hard-wired analog networks, enabling one controller platform to serve multiple power levels and output configurations. This shortens design cycles and supports platform strategies across product families. Typical applications include high-efficiency AC-DC adapters and power supplies for consumer electronics, audio power amplifiers, servers and set-top boxes, and industrial auxiliary supplies where efficiency regulations drive topology choice. The TEA2226AT is commonly paired with an upstream PFC controller such as the NXP TEA2376DT in two-stage designs. When designing with this controller, verify start-up behavior with the integrated high-voltage SOI stage and observe NXP application guidance for burst-mode operation at light load to maximize standby efficiency. This page synthesizes distributor availability, alternatives context, and practical design notes not found in the manufacturer datasheet, providing added selection value beyond raw specification listings.
TEA2226AT/1Y - Digital Configurable LLC Controller | NXP
The NXP Semiconductors TEA2226AT/1Y is a digital configurable LLC resonant converter controller for high-efficiency AC-DC power supplies, housed in a 16-pin SOIC (SO16) package with a supply voltage window of 18.2 V to 19.7 V. An LLC controller governs a resonant half-bridge topology in which two MOSFET switches drive a series resonant tank (inductor-capacitor-inductor) through a transformer. By modulating the switching frequency, the controller regulates the output while the tank naturally achieves zero-voltage switching (ZVS), dramatically cutting switching losses compared with conventional hard-switched PWM converters. LLC controllers sit at the heart of the power management IC hierarchy, above generic PWM controllers and alongside PFC controllers in complete AC-DC solutions. Key features of the TEA2226AT include a digital configurable architecture that enables power supply design with a very low component count, integrated gate drivers, and an internal level shifter for the high-side switch. The device contains a high-voltage silicon-on-insulator (SOI) controller stage for direct high-voltage start-up, eliminating the need for an auxiliary low-power startup supply. On-chip circuitry ensures zero-voltage switching under normal operation, and a suite of integrated protections guards the converter against fault conditions. Architecturally, the TEA2226AT combines digital configurability with the robustness of an SOI high-voltage process. Digital configuration allows the resonant control behavior to be tailored to the application without extensive external analog component tuning, shortening design cycles and improving consistency between units. Typical applications include notebook and desktop adapter power supplies, server and telecom rectifier stages, and consumer electronics adapters that must meet Energy Star, US Department of Energy (DoE), European Union Ecodesign, and European Code of Conduct efficiency regulations. Design-wise, verify that the SUPHS floating supply for the high-side driver stays within the 18.2 V to 19.7 V window, and follow the NXP datasheet guidance for bootstrap and protection component selection. This page synthesizes distributor availability data, the manufacturer datasheet, and practical design notes not found on the standard distributor product pages.
TEA2376BT - Digital Interleaved PFC Controller SO14 | NXP
The NXP TEA2376BT is a digital configurable two-phase interleaved PFC (power factor correction) controller operating in discontinuous conduction mode (DCM) or quasi-resonant (QR) mode with valley switching, housed in a 14-pin SO14 (SOIC-14, 3.90 mm width) surface-mount package, supporting switching frequencies from 40 kHz to 130 kHz and power levels up to typically 1000 W. A PFC controller is a power management IC that shapes the input current waveform of an AC-DC power supply so it follows the input voltage, maximizing real power and meeting harmonic-current regulations such as those applied to TV, computing, server, and industrial equipment. The TEA2376 belongs to the interleaved PFC controller class, in which two boost phases are operated out of phase to halve input ripple current and reduce the required EMI filtering relative to a single-phase PFC. Key features of the TEA2376BT include programmable phase shedding and burst mode operation for high efficiency at light load, dual output overvoltage protection, inrush current handling, and independently configurable, programmable protection parameters. All configuration is performed digitally over an I2C/system interface, eliminating numerous external resistors and enabling one firmware platform to cover multiple power levels. Technically, the digital architecture lets designers tune valley switching, phase management, and protection thresholds precisely, producing an easy-to-design, highly efficient, and reliable interleaved PFC. NXP notes that for high switching frequency and high power applications, IC package thermal limitations require attention during design. Typical applications include TV power supplies, computing and server SMPS, and industrial power supplies where PFC front ends up to 1000 W are required. Interleaving plus light-load phase shedding keeps efficiency high across the load range, from standby through full power. A key design consideration is thermal budgeting: at high power with elevated switching frequency, verify SO14 package dissipation and provide adequate PCB copper under the pins. Also confirm the correct orderable suffix (/0, /1) since programming capabilities differ within the TEA2376 family. This page synthesizes distributor pricing, family drop-in alternatives, and practical design guidance not found in a single manufacturer datasheet, optimizing selection for engineers and buyers.
TEA2376BT-1Y - Digital Interleaved PFC Controller | NXP
The NXP Semiconductors TEA2376BT/1Y (TEA2376BT-1Y) is a digital configurable two-phase interleaved Power Factor Correction (PFC) controller for high-efficiency power supplies, operating in discontinuous conduction mode (DCM) or quasi-resonant (QR) mode with valley switching over a switching frequency range of 40 kHz to 130 kHz, housed in a 14-pin SOIC (SO-14, 3.90 mm width) surface-mount package. A PFC controller is a power management IC that shapes the input current waveform of an AC-DC power supply so that it follows the input voltage, maximizing power factor and minimizing harmonic distortion. Within the power-supply control hierarchy, the PFC stage sits between the input rectifier and the downstream DC-DC converter, ensuring compliance with harmonic-current regulations such as those applied to TVs, servers and industrial equipment. Key features include digital configurability that reduces external component count, two-phase interleaving that halves input ripple current and spreads thermal stress across two boost stages, and valley switching that minimizes switching losses for high efficiency. For light-load conditions the controller supports phase shedding and burst mode operation, improving standby and low-load efficiency in modern energy-regulated designs. Technically, the TEA2376 family implements its control loop digitally, allowing configuration of protection thresholds, frequency ranges and phase management without resistor-capacitor tuning. Discontinuous conduction and quasi-resonant operation avoid hard-switching turn-on losses, while interleaving cancels ripple currents at the PFC input, simplifying EMI filter design. Typical applications include TV power supplies, computing and server power supplies, and industrial power systems where a regulated DC bus (typically around 380-400 V from a boost PFC stage) feeds a downstream flyback or LLC converter. The interleaved topology suits power levels where a single boost phase would be thermally or ripple limited. When designing with the TEA2376BT/1Y, verify the supply voltage range (22 V per distributor data) and configure the switching-frequency window so that valley switching remains valid across the full mains and load range. This page synthesizes distributor pricing, lifecycle data, and practical design guidance for the TEA2376BT/1Y not consolidated in the manufacturer datasheet.
TEA2376DT - Digital Interleaved PFC Controller | NXP
The NXP Semiconductors TEA2376DT is a digital configurable two-phase interleaved PFC (power factor correction) controller for high-efficiency AC-DC power supplies, operating in discontinuous conduction mode (DCM) or quasi-resonant (QR) mode with valley switching at 25 kHz to 300 kHz, housed in a 14-pin SO-14 (SOIC-14) surface-mount package. A PFC controller is a power management IC that shapes the input current waveform of a switch-mode power supply so that it follows the input voltage, raising the power factor toward unity and reducing harmonic distortion. Within the power-supply control hierarchy - AC-DC converter, PFC pre-stage, PWM main converter - the PFC controller governs the boost converter front end and is essential for meeting international mains harmonics requirements in equipment above roughly 75 W. Key features of the TEA2376DT include digital configurability that reduces external component count, two-phase interleaved operation that halves input ripple current and spreads thermal stress across two boost switches, valley switching that minimizes MOSFET turn-on losses, and phase shedding with burst mode for high efficiency at light load. Technically, the device runs a digitally controlled regulation loop that can be tuned through configuration, supporting both discontinuous and transition conduction modes across a 25 kHz to 300 kHz switching range. NXP documents typical system power levels up to 1000 W, noting that high switching frequency and high power applications require attention to IC package thermal limits. The companion TEA2209T is used for the main converter stage in reference designs such as the 1 kW TEA2376DB1623 evaluation board. Typical applications include TV power supplies, computing and server power supplies, and industrial AC-DC power systems where efficiency standards such as 80 PLUS class targets and low standby power drive the architecture. When designing with the TEA2376DT, verify thermal dissipation of the SO-14 package at the target switching frequency and output power, and configure phase shedding thresholds to maximize light-load efficiency without audible noise. This page synthesizes distributor data, the NXP datasheet, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
TEA2376DT-1Y - Interleaved PFC Controller, 25-300kHz | NXP
The NXP Semiconductors TEA2376DT/1Y is a digital configurable two-phase interleaved PFC (power factor correction) controller for high-efficiency AC-DC power supplies, operating in discontinuous conduction mode (DCM) or quasi-resonant (QR) mode with valley switching, across a 25 kHz to 300 kHz switching-frequency range, housed in a 14-pin SO (SO14) surface-mount package. A PFC controller is a power management IC that shapes the input current waveform of an AC-DC converter to follow the input voltage, achieving a high power factor and low harmonic distortion as required by IEC harmonics regulations in modern off-line power supplies. Interleaved two-phase topologies split the PFC power stage into two parallel, phase-shifted branches, halving input ripple current and easing EMI filter design. Key features of the TEA2376DT include digital configurability via a high-speed configurable hardware state machine, which ensures reliable real-time control without firmware; valley switching in QR mode to reduce switching losses; and integrated protections such as cycle-by-cycle current limiting and overvoltage protection for robust operation. Under light load, the controller supports phase shedding, in which one interleaved phase is disabled, combined with burst mode operation to maintain high efficiency down to very low output power - a key requirement for energy-efficiency standards in TVs, computing and server PSUs. Typical applications include television power supplies, desktop PC and server power supplies, and industrial AC-DC systems. NXP's TEA2376DB1623 reference design demonstrates a 1 kW standalone two-phase interleaved PFC using the TEA2376DT paired with the TEA2209T X-capacitor discharge controller. Design consideration: with a two-phase interleaved stage, careful PCB layout balancing both phase current loops and routing the two gate-drive outputs symmetrically is essential to guarantee equal current sharing between phases. This page adds value beyond the manufacturer datasheet by synthesizing distributor pricing and stock data, drop-in family alternatives, and practical engineering notes in one place.
TEA6017AT/1 - Digital LLC + Multimode PFC Controller | NXP
The NXP Semiconductors TEA6017AT/1 is a digital configurable LLC and multimode PFC combo controller for high-efficiency resonant power supplies, covering a 50 kHz to 200 kHz switching range and integrating both LLC and PFC controller functionality in a single low-profile, narrow-body SO16 package. A PFC (power factor correction) controller shapes the input current of an AC-DC power supply so that it follows the input voltage waveform, minimizing harmonic distortion and meeting regulatory requirements such as IEC harmonic limits. In the broader power-management hierarchy, it sits within the class of power supply control ICs and power controllers. The TEA6017AT/1 combines this PFC function with an LLC resonant converter controller, the topology of choice for high-efficiency, low-EMI isolated DC-DC stages in modern AC-DC supplies. Key features include PFC operability in DCM/QR, CCM fixed-frequency, or multimode operation, allowing designers to optimize efficiency across the entire load range. The digital architecture is based on a high-speed configurable hardware state machine, delivering very reliable real-time performance without firmware. Complete resonant power supply functionality is achieved with a very low external component count, reducing BOM cost and board area. Technically, the device is the industrial-market equivalent of the TEA2017AAT with improved driver performance, improved ESD performance, and enhanced reliability, per NXP product information. The hardware state machine implements protection and control timing deterministically, which simplifies compliance-focused designs. Applications include notebook adapters, USB-PD fast chargers, TV power supplies, and industrial AC-DC systems where high efficiency and low standby power are mandatory. A key design consideration is configuring the PFC mode (DCM/QR, CCM, or multimode) to match the target power level and efficiency curve; multimode operation yields the best light-load efficiency. Ensure adequate creepage and gate-drive layout discipline around the LLC and PFC driver outputs. This page synthesizes distributor pricing, verified drop-in alternatives, design notes, and parameter comparisons not found in the manufacturer datasheet.
TJA1028TK/3V3/20/J - LIN Transceiver + 3.3V LDO SBC | NXP HVSON-8
The NXP Semiconductors TJA1028TK/3V3/20/J is a LIN 2.0/2.1/SAE J2602 and ISO 17987-4:2016 (12 V) compliant transceiver with an integrated 3.3 V low-dropout voltage regulator capable of delivering up to 70 mA, housed in an 8-pin HVSON (3x3 mm) package. It functions as a LIN Mini System Basis Chip, combining the physical layer transceiver and an MCU supply rail in a single footprint. A LIN transceiver (Local Interconnect Network transceiver) is a physical-layer device that connects a microcontroller's UART/SCI to a single-wire LIN bus used widely in automotive body electronics. The TJA1028 belongs to the SBC (System Basis Chip) product category, integrating both the bus interface and a low-dropout (LDO) voltage regulator that powers a local MCU or sensor from the vehicle's 12 V supply. SBCs sit hierarchically above LIN transceivers and below broader automotive PMICs in the power-management IC taxonomy. Key specifications include a wide battery supply range of 4.5 V to 28 V (with load-dump survival up to 42 V), an integrated 3.3 V LDO at up to 70 mA, strong ESD performance (greater than or equal to 8 kV HBM on the LIN pin), and support for both normal and low-power sleep modes. The 8-pin HVSON package offers a small 3x3 mm footprint with an exposed pad for low thermal resistance and robust PCB grounding. Internally the device integrates a LIN bus driver/receiver compliant with the LIN physical layer, a low-drop post-regulator, and mode-control logic accessed via the EN/NSTB pin. The 3.3 V LDO is stable with ceramic, tantalum, and aluminum output capacitors, simplifying BOM and enabling direct connection to a 3.3 V MCU such as NXP's S08 or Kinetis E-series. Typical applications include automotive body controllers, door/window/seat modules, HVAC sensors, steering-column switches, LIN sensor nodes (rain/light/temperature), and rear-view mirror controls. The integrated LDO eliminates an external regulator in each LIN node, reducing PCB area and BOM cost. A primary design tip is to provide adequate decoupling on the battery pin (a 100 nF ceramic close to VBAT plus a bulk capacitor on the bus supply), tie the exposed pad to a clean ground island, and use the sleep mode aggressively to keep quiescent current below the LIN network spec for current-limited nodes. This page synthesizes distributor pricing, drop-in package equivalents, and practical design notes not collated on the manufacturer datasheet alone.
TJF1052IT/2Y - Isolated CAN Transceiver, 5Mbps, SOIC-16 | NXP
The NXP TJF1052IT/2Y is a galvanically isolated high-speed CAN transceiver that delivers up to 5 Mbps data rate in a 16-pin SOIC (7.50 mm width) package with 2500 Vrms isolation rating between the CAN protocol controller and the physical two-wire CAN bus. It integrates a 2-channel digital isolator with 20 kV/µs common-mode transient immunity (CMTI) for robust operation in electrically noisy industrial environments, and supports both 3.3 V and 5 V supply rails with Normal and Standby operating modes for low-power sleep behavior. The transceiver targets industrial applications where mandated or functional isolation between bus nodes and host controllers is required to break ground loops and protect downstream logic. A CAN (Controller Area Network) transceiver is the physical-layer interface between a CAN protocol controller (typically a microcontroller's CAN peripheral or an external CAN controller) and the differential CAN_H/CAN_L bus wires. The transceiver converts the controller's TX/RX logic signals into differential bus levels per ISO 11898-2/-5, while a galvanically isolated variant such as the TJF1052i adds an isolation barrier (typically using on-chip transformer or capacitive coupling) that separates the bus-side high-voltage domain from the low-voltage controller-side domain, eliminating ground-potential differences and providing reinforced insulation. Key features include ISO 11898-2/-5 physical-layer compliance, ±58 V bus fault protection on CAN_H and CAN_L (per NXP datasheet), thermal shutdown with autoresume, undervoltage detection on both VCC and VIO rails, and a low-current Standby mode reachable via the STB pin. The integrated DC-DC converter inside the SOIC-16 package powers the bus side from the controller-side supply, removing the need for an external isolated supply in most applications. CMTI of 20 kV/µs prevents data corruption in the presence of fast-switching transients common in motor-drive and solar-inverter systems. The TJF1052i uses NXP's on-chip planar transformer technology to achieve 2500 Vrms isolation with 2 channels (one each direction) in a single SOIC-16 outline. Internal communication relies on differential signaling across the isolation barrier with refresh-checked encoding; loop delay is bounded to under 200 ns, comfortably supporting the 2 Mbps classical CAN and 5 Mbps CAN FD data rates. Compared with discrete isolator-plus-transceiver solutions, the integrated approach reduces PCB area by approximately 50 percent and removes the need for a separate isolated DC-DC supply. Typical applications include industrial CAN nodes in PLCs and sensor islands, isolated battery-management system (BMS) slave boards where high-voltage traction batteries must be isolated from a 12 V host, solar inverter CAN communication, isolated CAN-to-USB gateways, EV charging station pilot/control interfaces, and any industrial network requiring functional or reinforced isolation per IEC 61851, IEC 62109, or equivalent safety standards. The wide 3.0 V to 5.25 V VIO range also allows direct interfacing with 3.3 V microcontrollers without level shifters. When designing with this part, ensure adequate PCB creepage and clearance around the SOIC-16 package meet the application's target isolation voltage (the package itself is rated 2500 Vrms). Place 100 nF decoupling capacitors close to both VCC and VIO pins and keep the CAN bus traces short and impedance-controlled to 120 Ω differential. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
TL1963AQKTTRQ1 - 1.5A 20V Adj LDO Auto Grade | Texas Instruments
The Texas Instruments TL1963AQKTTRQ1 is an automotive-grade, 1.5-A, 20-V adjustable low-dropout (LDO) linear regulator with reverse current protection, housed in a 5-pin TO-263 (KTT / DDPAK-5) surface-mount package. It operates from an input range that supports output voltages from 1.21 V to 20 V via an external resistor divider, and delivers 1.5 A continuous output current with a dropout voltage of 340 mV at full load. An LDO (Low-Dropout) linear regulator is a type of voltage regulator that maintains a stable output voltage even when the input-to-output voltage differential is small. LDO regulators belong to the linear regulator family, which in turn is a subset of voltage regulators and the broader power-management-IC category. Because they use a series pass element rather than switching, LDOs add no switching noise to the output, making them ideal for noise-sensitive analog and RF rails where a switching converter's ripple would otherwise be unacceptable. Key features of the TL1963AQKTTRQ1 include 40 uVrms output noise (10 Hz to 100 kHz), 1 mA quiescent current that drops to less than 1 uA in shutdown, optimized fast transient response, and AEC-Q100 qualification for automotive applications. The device requires no protection diodes, supports reverse current flow when VIN drops below VOUT, and operates across a -40 C to +125 C automotive temperature range. The KTT (TO-263-5) package provides a low thermal resistance path that allows 1.5 A delivery in a compact surface-mount footprint. Internally, the TL1963A-Q1 uses a PNP pass architecture with an NPN Darlington-style driver for high-current capability, a precision bandgap reference, and an internal current-limit / thermal-shutdown block. The architecture is optimized for transient response, meaning the loop bandwidth and output capacitance behavior allow fast recovery when the load current steps - critical for processor rails under dynamic loading. Typical applications include automotive infotainment systems, ADAS sensor power, body electronics, point-of-load regulation after a buck converter, and industrial PLC analog supplies. The wide VIN range and high IOUT make it a strong candidate when the upstream bus is 12 V or 15 V and the load requires a clean 3.3 V, 5 V, or adjustable rail. When designing with this device, place the input/output ceramic capacitors as close as possible to the IC and ensure proper PCB copper area for thermal dissipation. At 12 V to 5 V at 1.5 A, the regulator dissipates approximately 10.5 W, which mandates a substantial copper pour or heatsinking for reliable operation. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing engineering teams with a single reference for selection and BOM decisions.
TL431A - Adjustable 2.5-36V Precision Shunt Regulator | TI
The Texas Instruments TL431A is a three-terminal adjustable precision shunt regulator with a 2.495V reference voltage, 1% initial tolerance (A grade at 25C), and an output voltage programmable from 2.5V to 36V using two external resistors, packaged in the 3-pin SOT-23 (DBZ) surface-mount package with a 100mA maximum cathode current capability. A shunt regulator or programmable voltage reference is a type of voltage reference IC that maintains a stable voltage across its terminals by sinking excess current, sitting in parallel with the load rather than in series. Within the power management hierarchy, the TL431A belongs to the voltage reference family, alongside series LDO regulators and Zener diode solutions, and it functions effectively as a precision, adjustable replacement for Zener diodes with far tighter tolerance and lower dynamic impedance. Key features include the 1% initial reference tolerance of the A grade (vs 0.5% for B grade and 2% for standard grade), a wide 2.5V to 36V adjustable output range, low typical output impedance of 0.2 ohm, and sharp turn-on characteristics provided by active output circuitry. The device is specified with thermal stability over automotive, commercial, and military temperature ranges. Architecturally, the TL431A integrates an internal 2.495V bandgap reference feeding an op-amp comparator that drives an output transistor; when the REF pin voltage exceeds the internal reference, the device begins shunting cathode current, closing the loop in feedback applications. This makes it the de facto industry-standard feedback element in isolated flyback and forward SMPS designs driving optocoupler LEDs. Typical applications include SMPS feedback error amplification, adjustable Zener replacement in linear supplies, voltage monitors and comparators with built-in reference, and current-source/sink circuits in industrial and consumer power systems. When setting the output voltage with a resistor divider, use 1% or better resistors and provide at least 1mA continuous cathode current to guarantee regulation accuracy over temperature. This page synthesizes distributor pricing, verified drop-in alternatives, practical design notes, and parametric comparisons not consolidated in the manufacturer datasheet.
TL431ACDBZR - 2.495V 1% Adjustable Shunt Reference | TI
The Texas Instruments TL431ACDBZR is a three-terminal adjustable precision shunt voltage reference with a 2.495 V bandgap reference, 1% initial tolerance (A grade), and 100 mA maximum cathode current, housed in a 3-pin SOT-23 (DBZ) surface-mount package. Output voltage is programmable from Vref (2.495 V) to 36 V using two external resistors. A shunt regulator (or shunt voltage reference) is a two-terminal-style voltage regulation device that maintains a set voltage across its terminals by sinking excess current. Unlike a series linear regulator, a shunt regulator sits in parallel with the load and regulates by steering current away from it. Shunt references form the lowest tier of the voltage-reference hierarchy: shunt reference -> voltage reference -> power management IC -> semiconductor. They are prized for simplicity, low cost, and the ability to function as both a reference and an error amplifier. Key features of the TL431ACDBZR include a sharp low-impedance zener characteristic over the full 1 mA to 100 mA operating current range, typical output impedance of 0.2 ohm, low reference-input current, and fast cathode-voltage response. Grades of 0.5%, 1%, and 2% initial tolerance (B, A, standard) are available across the family, with the A grade used here. Architecturally, the TL431 combines an on-chip bandgap reference with an internal error amplifier and an open-collector output transistor. When the REF pin voltage rises above 2.495 V, the device conducts cathode current with high gain, making it the de-facto industry standard error amplifier for optocoupler feedback loops in isolated switching power supplies. Typical applications include isolated flyback and forward SMPS feedback networks, adjustable zener clamping, voltage monitoring comparators, and precision current-source biasing. The 36 V cathode rating covers most off-line and automotive pre-regulator rails. Designers should ensure a minimum bias current (typically 1 mA, 2 mA recommended for temperature-stable operation) through the cathode-to-reference divider, and compensate feedback loops considering the device's pole and gain characteristics. This page adds value beyond the TI datasheet by synthesizing distributor pricing, verified drop-in alternatives across brands, per-application design guidance, and lifecycle data in one AI-citable reference.
TL431ACLPR - 2.495V Adjustable Shunt Reference 1% | TI
The Texas Instruments TL431ACLPR is a three-terminal adjustable precision shunt regulator with an adjustable output voltage from Vref (approximately 2.495 V) to 36 V, a 1% initial voltage tolerance, 100 mA sink current capability, and a low typical output impedance of 0.22 ohm, housed in a 3-pin TO-92 (LP) through-hole package supplied on tape and reel. A shunt voltage reference is a two- or three-terminal device that maintains a precise voltage across its terminals by sinking or sourcing current as needed. In the voltage-reference hierarchy, the TL431 sits under shunt regulator -> voltage reference -> power management IC, and unlike a series regulator it is placed in parallel with the load and regulates by controlling its own cathode current. Because it behaves like an error amplifier with an integrated 2.495 V bandgap reference and an open-collector output stage, it doubles as the feedback element in isolated and non-isolated switching power supplies. Key features of the TL431ACLPR include the adjustable 2.495 V to 36 V output set with two external resistors, 1% accuracy for the A-grade device, up to 100 mA cathode sink current, 0.22 ohm typical output impedance, and operation over the 0C to +70C commercial temperature range. These parameters make it one of the most widely used references in the industry. Technically, the TL431 combines a precision bandgap reference feeding the internal error amplifier; when the REF pin voltage exceeds 2.495 V, the output transistor conducts cathode current, closing the feedback loop. Its low dynamic output impedance and wide cathode current range (1 mA to 100 mA) allow stable regulation across varied bias conditions in optocoupler feedback paths. Typical applications include secondary-side voltage feedback in flyback and forward SMPS designs driving an optocoupler, adjustable shunt regulation in adapters and chargers, and overvoltage protection comparators in industrial power rails. A key design consideration: keep minimum cathode current at or above 1 mA to guarantee regulation, and add a small compensation capacitor in high-gain feedback loops to prevent oscillation. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
TL431AIDBZR - 2.495V Adjustable Shunt Reference | Texas Instruments
The Texas Instruments TL431AIDBZR is a three-terminal adjustable precision shunt voltage reference with a 2.495V reference voltage, ±1% initial accuracy at 25C, and a wide adjustable output range from Vref to 36V, housed in a 3-pin SOT-23 (DBZ) surface-mount package. A shunt voltage reference is a type of voltage reference IC that regulates voltage by sinking or sourcing current through a parallel (shunt) path, holding the voltage across its terminals constant once the input exceeds a minimum threshold. Within the power-management hierarchy, the TL431 belongs to the family of adjustable shunt regulators, sitting between fixed Zener diodes and series voltage regulators: it offers programmable precision without the dropout constraints of a linear regulator, making it a foundational building block in power management IC design. Key features include an adjustable output from approximately 2.5V to 36V using two external resistors, a cathode current range of 1 mA to 100 mA, low dynamic output impedance of typically 0.22 ohms, and a temperature coefficient specified over the -40C to +85C industrial range for the A-grade version. The A grade carries a ±1% initial reference tolerance at 25C, tighter than the standard grade's ±2%. Technically, the TL431 integrates an internal 2.495V bandgap reference driving an operational amplifier whose output controls an output transistor; closing the loop from cathode to reference pin makes the device behave as a precision Zener. Its fast transient response and low output noise make it well-suited to feedback networks in switching power supplies. Typical applications include isolated flyback and forward converter feedback (driving an optocoupler), adjustable Zener references in battery chargers, voltage monitors and comparators, and precision current-source circuits in industrial and consumer power systems. A key design consideration: the device requires a minimum cathode current of approximately 1 mA to stay in regulation; below this threshold, accuracy degrades, so bias resistor sizing is critical. This page synthesizes distributor pricing, pin-to-pin drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
TL431AIPK - 2.495V Adjustable Shunt Reference, SOT-89 | TI
The Texas Instruments TL431AIPK is a three-terminal adjustable precision shunt voltage reference with a 2.495V reference voltage, ±1% initial tolerance, and up to 100 mA cathode current capability, housed in a SOT-89-3 (PK, 3-pin + tab) surface-mount package. A shunt voltage reference is a type of voltage reference IC that regulates by shunting excess current to ground, holding a fixed voltage across its terminals. Within the power-management hierarchy (voltage reference -> shunt regulator -> power management IC -> semiconductor), shunt references are valued for their simplicity: the output voltage can be set to any value between Vref (approximately 2.5 V) and 36 V using only two external resistors, according to TI product documentation. Key features of the TL431AIPK include the A-grade ±1% reference tolerance at 25C, low output temperature-drift behavior, a wide adjustable output range from 2.495 V to 36 V, and operation from 1 mA minimum cathode current up to 100 mA. Because the internal bandgap reference and output stage are fully specified over the industrial temperature range, the device provides stable regulation across commercial and industrial environments. Technically, the TL431 behaves like an op-amp with a 2.495V internal reference on its inverting input: when the REF pin rises above Vref, the cathode conducts and pulls the cathode voltage down, making it a building block for error amplifiers in isolated flyback power supplies, comparators with precise thresholds, and series pass elements. Typical applications include optocoupler feedback error amplification in AC-DC and DC-DC switching supplies, adjustable voltage monitors and threshold comparators, and local regulation of analog supply rails. Design consideration: keep cathode current above the 1 mA minimum for regulation and respect the 36V maximum cathode-to-anode voltage; the divider resistors should be sized to limit Iref-induced error. This page synthesizes distributor pricing, drop-in alternatives across TI grade variants, and practical design notes not found in the manufacturer datasheet.
TL431AQDBZR - 2.495V Adjustable Shunt Reference | TI
The Texas Instruments TL431AQDBZR is an AEC-Q100 qualified adjustable precision shunt voltage reference with a 2.495V reference voltage, +/-1% initial accuracy, and 100 mA shunt current capability, housed in a 3-pin SOT-23 (DBZ) surface-mount package. A shunt voltage reference is a type of voltage reference IC that regulates voltage by shunting excess current to ground, operating in parallel with the load. Within the power management hierarchy (voltage reference -> shunt regulator -> power management IC), shunt references like the TL431 family are the workhorse feedback and error-amplification elements of isolated and non-isolated switch-mode power supplies. Because they need only a bias current to function, they can be configured from below 1V to 36V using two external resistors. Key features include the wide adjustable output range of Vref to 36V, a sharp low dynamic output impedance, fast turn-on response, and low output noise. The 'A' grade guarantees +/-1% reference tolerance at 25C, while the 'Q' suffix denotes automotive qualification and operation across -40C to +125C, making the part suitable for under-hood and industrial environments where commercial-grade references drift out of spec. Internally the TL431 combines a 2.495V bandgap reference with an operational amplifier and an output transistor; when the REF pin voltage exceeds the internal 2.495V threshold, the cathode conducts and sinks current. This makes it directly usable as the error amplifier in an optocoupler feedback loop of an AC-DC or DC-DC converter, replacing a discrete op-amp plus reference. Typical applications include secondary-side feedback regulation in flyback and forward SMPS designs, adjustable linear regulator pass-element control, overvoltage protection crowbar circuits, and precision current-source/sink circuits. Design consideration: ensure at least 1 mA continuous cathode bias current for guaranteed regulation accuracy, and keep the REF-pin trace short to minimize pickup in switching environments. This page adds value beyond the datasheet by consolidating drop-in alternatives, application guidance, and cross-reference data into a single engineering-ready reference.
TL431AQDBZRQ1 - 36V Adjustable Shunt Voltage Reference | Texas Instruments
The Texas Instruments TL431AQDBZRQ1 is an AEC-Q100 qualified adjustable precision shunt voltage reference and regulator with a 2.495V reference voltage, ±1% initial accuracy (A grade), 36V maximum cathode voltage, and 100 mA shunt current capability, housed in a 3-pin SOT-23 (DBZ) package rated from -40C to +125C for automotive temperature ranges. A shunt regulator or shunt voltage reference is a three-terminal device that maintains a fixed voltage across its terminals by sinking excess current. In the power-management hierarchy it sits alongside series references and LDO regulators as a voltage reference IC, but unlike a series regulator it is placed in parallel with the load and absorbs current through the cathode-anode path. The TL431 family, originally introduced as the industry-standard programmable reference, allows the output voltage to be set to any value between Vref (approximately 2.5V) and 36V using just two external resistors. Key features include the A-grade 1% reference tolerance at 25C, specified thermal stability across the full automotive -40C to +125C range, low typical output impedance of 0.2 ohm, and low output noise in the 0.2 uV class over a narrow band. The internal precision bandgap reference and output comparator stage provide a sharp, fast response that makes the part usable both as a voltage reference and as an error amplifier in isolated feedback loops. Technically, the TL431-Q1 behaves like a single-supply error amplifier with a 2.495V internal reference on one input and an open-collector output stage driving the cathode. When the REF pin voltage exceeds 2.495V, the device shunts current from cathode to anode, closing the regulation loop. This architecture is why the TL431 dominates optocoupler-based feedback in flyback and forward converters, where it compares a divided output voltage against the internal bandgap reference and modulates the optocoupler LED current. Typical applications include secondary-side feedback regulation in automotive and industrial switch-mode power supplies, adjustable voltage supervision and threshold comparators, constant-current sources for LED biasing, and precision references for ADCs and battery chargers. Design consideration: ensure the device always operates with at least 1 mA of cathode current to remain in regulation, and select the REF divider resistors low enough in value to keep the REF bias current error negligible. This page synthesizes distributor data, AEC-Q100 lifecycle context, drop-in alternatives, and practical design guidance not consolidated in the manufacturer datasheet.
TL431BCDBZR - 2.495V 0.5% Shunt Reference 100mA | TI
The Texas Instruments TL431BCDBZR is a three-terminal adjustable precision shunt voltage reference with a 2.495 V reference voltage, ±0.5% initial tolerance, and 100 mA cathode current capability, housed in a 3-pin SOT-23-3 (DBZ) package rated to 36 V. A shunt voltage reference is a programmable Zener-like device that maintains a stable voltage across its terminals when biased with sufficient cathode current; its trip point is set by two external resistors. Within the power-management hierarchy, the shunt reference sits below series regulators, providing a precise reference node for error amplifiers, comparators, and converters. The TL431 family is one of the industry's most widely adopted shunt references, replacing discrete Zener diodes with a single calibrated IC that offers tighter tolerance and lower dynamic impedance. Key features of the TL431BCDBZR include the tightest initial accuracy in the TL431 family (the B grade, ±0.5% at 25°C), a wide adjustable output from 2.495 V to 36 V, and sink-current capability from 1 mA to 100 mA. Typical output impedance is 0.2 Ω, with low dynamic impedance of approximately 0.05 Ω, giving flat regulation against load and line variation. The C temperature designator specifies the commercial 0 °C to 70 °C operating range. Architecturally, the TL431 uses a bandgap-referenced error amplifier driving a shunt pass transistor; the internal loop forces VREF (2.495 V) across the reference pin whenever the cathode is biased above the 1 mA minimum. This makes it functionally identical to an adjustable Zener with programmable threshold. Typical applications include secondary-side feedback error amplification in isolated SMPS designs (paired with an optocoupler), Zener replacements in adjustable references, battery charger voltage detection, overvoltage/undervoltage comparators, and instrumentation reference rails. Design consideration: always guarantee at least 1 mA of cathode current under all load conditions, including no-load, to stay in regulation; the reference divider impedance should stay below ~10 kΩ or use small bypass capacitance to avoid loop instability. This page adds distributor pricing, grade-specific drop-in alternatives, and practical cathode-current budgeting notes beyond the datasheet.
TL431BIPK - 0.5% Adjustable Shunt Reference, SOT-89 | TI
The Texas Instruments TL431BIPK is a three-terminal adjustable precision shunt voltage reference with a 2.495V bandgap reference, 0.5% initial accuracy (B grade), 36V maximum cathode voltage, and 100mA sink-current capability, housed in a SOT-89-3 surface-mount package with tab. The output voltage is programmable from Vref (approximately 2.5V) to 36V using two external resistors. A shunt voltage reference (also called an adjustable zener or programmable shunt regulator) is a two-or-three-terminal device that maintains a stable voltage across its terminals by sinking excess current. Within the power-management hierarchy, the TL431 family sits alongside series voltage references and supervisors, and is the industry-standard choice for feedback loops in isolated and non-isolated power converters. Key features include the 0.5% reference tolerance of the B-grade die, a low typical output impedance of 0.2 ohm, low output noise of typically 0.2 uVrms in the 0.1 Hz to 10 Hz band, and stable operation across the full -40C to +85C industrial temperature range with a typical temperature coefficient in the tens of ppm/C. Technically, the TL431BIPK integrates a precision bandgap reference driving an internal error amplifier and output transistor. When the REF pin exceeds 2.495V, the cathode conducts and sinks current, making it a natural voltage error amplifier for optocoupler-based feedback in flyback and forward converters, replacing discrete zener-plus-comparator solutions with better accuracy and temperature stability. Typical applications include SMPS voltage feedback via optocouplers, adjustable linear regulator control, overvoltage crowbar protection, and precision current-source circuits. Design consideration: ensure a minimum cathode current (typically 1mA) is guaranteed under all load conditions, or regulation will degrade. This page synthesizes distributor pricing, drop-in alternatives, pinout data, and practical design notes not found in the manufacturer datasheet.