Batteriemanagement
Produkte (195)
PCA9420UKZ - 5V PMIC, 2 Buck + 2 LDO + Charger | NXP
The NXP PCA9420UKZ is a highly integrated Power Management IC (PMIC) delivering a complete power solution for low-power microcontroller applications, combining two buck converters, two programmable-output LDOs, and an integrated Li-ion battery charger in a single compact 52-connection package, powered from a 5V adapter input or a Li-ion battery. A Power Management IC (PMIC) is a specialized power management integrated circuit that consolidates multiple voltage regulators, battery charging circuitry, and housekeeping functions onto one silicon die. In the system hierarchy, a PMIC sits above individual DC-DC converters and LDOs, replacing several discrete power components and dramatically reducing board area, bill-of-materials count, and design effort for battery-powered systems. Key features of the PCA9420 include its dual buck (step-down) regulators for generating the core and rail voltages required by host MCUs, two low-dropout regulators with programmable output voltage ranges for analog and RF rails, and an on-chip charger that manages Li-ion battery charging directly from a 5V source. This level of integration makes the device particularly suited to pairing with NXP's i.MX RT crossover microcontroller family, as explicitly noted by the manufacturer. Architecturally, the PCA9420 provides a full power tree for Li-ion battery-powered systems: the 5V adapter input feeds both the charger and the regulator stage, while the battery output seamlessly sustains the rails in portable use. Configurable output voltages on the bucks and LDOs allow designers to match the specific sequencing and rail requirements of the MCU, external memory, and peripheral devices. Typical applications include i.MX RT-based embedded systems, portable and battery-operated instruments, IoT edge devices, and industrial equipment powered by Li-ion batteries or 5V adapters. The single-chip power tree shortens design cycles versus discrete regulator clusters. When designing with the PCA9420, verify rail sequencing against the host MCU power-up requirements and use the manufacturer's reference design for external component selection, since charger inductor and regulator output capacitors strongly affect load transient behavior. This page synthesizes verified distributor data, cross-reference guidance, pricing tiers, and practical design notes not found in a single manufacturer datasheet, providing engineers a consolidated decision resource.
PCA9422 - 640mA Charger+Gauge PMIC for i.MX RT500/600/700 | NXP
The NXP PCA9422 is an ultra-low-power charger and gauge power management IC (PMIC) with an integrated linear battery charger delivering up to 640 mA in a 49-ball wafer-level chip-scale package (WLCSP, 3 x 2.9 mm). A PMIC (power management IC) is a highly integrated semiconductor that combines multiple power functions - battery charging, voltage regulation, load switching, and monitoring - into a single device. In the system hierarchy, a PMIC sits above individual regulators: instead of designing a discrete charger IC, multiple DC-DC converters, and fuel-gauge circuitry separately, the PCA9422 provides a complete power tree for a low-power microcontroller system on one chip, reducing bill-of-materials count, board area, and quiescent power consumption. Key features include a linear battery charger with Constant Current (CC) and Constant Voltage (CV) charge phases capable of up to 640 mA, integrated battery gauging functionality, and targeting of NXP's ultra-low-power crossover MCU families - the i.MX RT500, i.MX RT600, and i.MX RT700. The high level of integration makes it suited to small-battery products where every square millimeter and every microamp of standby current matters. Architecturally, the PCA9422 was designed in close conjunction with the i.MX RT500/RT600/RT700 power architecture, so its regulated rails and charge profile match the sequencing and brown-out requirements of those MCUs without external sequencing logic. The WLCSP packaging minimizes loop inductance and footprint, and on-chip charging control removes the need for a separate charger IC in wearables and hearables. Typical applications include battery-powered wearables, hearables and smart-sensor nodes built around the i.MX RT500/RT600/RT700, and other small-battery microcontroller systems that need charging plus power distribution in one device. When designing with this device, verify the charge current setting against your battery cell's 1C rating and confirm thermal dissipation of the linear charger at maximum VIN-to-VBAT differential - linear charging at 640 mA can dissipate significant power if the input rail is much higher than the battery voltage. This page synthesizes distributor pricing, drop-in variant alternatives, and practical design notes not found in the manufacturer datasheet.
PCA9422 - Ultra-Low-Power Charger+Gauge PMIC | NXP | i.MX RT500
The NXP PCA9422LUKZ is a highly-integrated ultra-low-power charger and gauge power management IC (PMIC) featuring a linear battery charger delivering up to 640 mA with constant-current (CC) and constant-voltage (CV) charging phases, housed in a 49-ball WLCSP package measuring 3 x 2.9 mm. It is purpose-built to provide a complete power management solution for the NXP i.MX RT500, RT600 and RT700 crossover MCU families and other low-power microcontroller systems powered by small batteries. A PMIC (power management IC) is a semiconductor device that integrates multiple power functions - battery charging, voltage regulation, load switching and monitoring - into a single die, replacing several discrete regulators and chargers on the PCB. Within the power-management hierarchy, the PCA9422 sits above simple LDOs and charger ICs, acting as the single power tree for a battery-operated embedded system. Key differentiating features include the 640 mA linear charger with CC/CV control, integrated battery gauging support for state-of-charge reporting, and an ultra-low quiescent footprint suited to coin-cell and small Li-ion batteries. Highly-integrated regulation rails reduce external component count and board area, which is critical in wearables and compact IoT nodes. Architecturally, the PCA9422 combines the charge path, system power-path management and regulated output rails under digital control, allowing the host MCU to configure charging current, system voltage and power modes over its control interface. This coordination minimizes battery stress and extends runtime in duty-cycled sensor applications. Typical applications include i.MX RT500/RT600/RT700-based wearable and hearable designs, Bluetooth Low Energy smart sensors, small battery-powered medical patches, and portable human-machine-interface devices where board space and battery capacity are constrained. Design consideration: because the charger is linear, thermal dissipation scales with the input-to-battery voltage differential - at high charge currents, evaluate worst-case power dissipation and PCB copper area around the WLCSP ballout. This page synthesizes distributor listings, the NXP datasheet, drop-in variant cross-references and practical design notes not consolidated in the manufacturer datasheet alone.
PCA9422AUKZ - Charger+Gauge PMIC 640mA | NXP | Low-Power MCU
The NXP PCA9422AUKZ is a highly-integrated ultra-low-power charger-plus-gauge power management IC (PMIC) with a JEITA-compliant linear battery charger capable of charging currents up to 640 mA, I2C-programmable configuration, and a 49-ball WLCSP package measuring 3 x 2.9 mm. A power management IC (PMIC) is a semiconductor device that consolidates multiple power functions - battery charging, voltage regulation, monitoring and protection - into a single chip. Within the power management hierarchy, a PMIC sits above individual LDOs and chargers, providing a complete power tree for the system. The PCA9422 targets low-power microcontroller applications and systems powered by small rechargeable batteries, where board space and quiescent current are at a premium. Key features of the PCA9422AUKZ include the JEITA-compliant linear charger with programmable charge current up to 640 mA, battery temperature monitoring per the JEITA profile for safe charging across temperature ranges, and I2C programmability that lets firmware adapt charging parameters, voltage limits and protection thresholds at runtime. Various built-in protection functions guard against overvoltage, overcurrent and thermal faults, reducing the need for external protection circuitry. Architecturally, the device integrates the charger state machine, battery gauge functionality and configuration registers behind a standard I2C serial interface, allowing the host microcontroller to monitor charge status and battery parameters while the PMIC autonomously manages the charge cycle. This offloads power management from the MCU firmware and improves overall system robustness. Typical applications include battery-powered IoT sensor nodes, wearable devices, portable medical accessories, and low-power microcontroller systems such as NXP i.MX RT-class edge platforms with small batteries, where a complete single-chip power solution minimizes solution size. Design consideration: because the linear charger dissipates (VIN - VBAT) x ICHG as heat, limit charge current or input voltage differential in thermally constrained enclosures, and use the JEITA temperature monitoring with an appropriate NTC to protect the cell. This page synthesizes distributor pricing, availability and practical design guidance for the PCA9422AUKZ not found in the manufacturer datasheet alone.
PCA9422BUKZ - PMIC with 640mA Charger | NXP Semiconductors
The NXP Semiconductors PCA9422BUKZ is a highly-integrated power management IC (PMIC) for low-power microcontroller applications, featuring a JEITA-compliant linear battery charger supporting up to 640 mA charge current, I2C-programmable configuration, and built-in protection functions, housed in a 49-ball WLCSP package measuring 3 x 2.9 mm. A power management IC (PMIC) is a semiconductor device that integrates multiple power functions - voltage regulation, battery charging, load switching, and monitoring - into a single die. Within the power management hierarchy, a PMIC sits above discrete LDO regulators and charger ICs, providing a complete power tree for a system on one chip. For battery-powered microcontroller systems, an integrated PMIC reduces board area, bill-of-materials count, and design complexity compared to a multi-chip solution. The key differentiating feature of the PCA9422 is its full-solution integration: the JEITA-compliant linear charger automatically adjusts charge voltage based on battery temperature, protecting lithium cells during charging at up to 640 mA. I2C programmability allows firmware to reconfigure charge current, output voltages, and protection thresholds at runtime, enabling one hardware design to serve multiple battery and rail configurations. Built-in protection features safeguard against fault conditions without external supervision circuitry. Architecturally, the PCA9422 targets NXP's i.MX RT5/6/700 crossover MCU families and similar low-power processors, delivering the multiple regulated rails such devices require from a single small-battery input. Integration of the charger and the rail generation in one 49-WLCSP die minimizes the footprint of the entire power section - the 3 x 2.9 mm package suits wearables, smart sensors, and compact IoT endpoints where board area is the primary constraint. Typical applications include i.MX RT5/6/700-based embedded systems, wearable devices, small-battery IoT sensor nodes, and portable medical or industrial accessories requiring managed single-cell charging plus multiple low-voltage rails. When designing with the PCA9422, the linear charger topology means thermal dissipation scales with the VIN-to-VCORE differential times charge current; at the full 640 mA rate with a 5V USB input, layout copper around the WLCSP balls should be maximized and JEITA temperature limits observed. This page synthesizes verified manufacturer and distributor data, practical design notes, and application guidance not found in the datasheet alone. Pricing for this part was not published in the retrieved distributor data as of 2026-09-13 and is marked accordingly.
PF9453 - PMIC for i.MX 91/93, 4 Bucks + 3 LDOs | NXP
The NXP Semiconductors PF9453 is a single-chip Power Management IC (PMIC) purpose-built for the i.MX 91 and i.MX 93 application processors, integrating four high-efficiency step-down (buck) regulators, three LDOs (including a low-Iq SNVS LDO), one 400 mA load switch, and a 32.768 kHz crystal oscillator in a compact 40-pin HVQFN (5x5 mm) package. It targets IoT, smart appliance, industrial, and portable applications where board space and power efficiency are critical. A PMIC (Power Management IC) is an integrated power-management solution that consolidates multiple voltage regulators, switches, and supervisory functions into one device. In the power-supply hierarchy, a processor PMIC sits above discrete DC-DC converters and LDOs, providing complete, sequenced multi-rail power for an SoC and its peripherals from a single input supply, reducing bill-of-materials count, board area, and bring-up complexity. Key features include four high-efficiency, low-quiescent-current buck regulators that generate the core, SoC, DDR, and I/O rails required by i.MX 91/i.MX 93 processors; two general-purpose LDO regulators (one LDO in WLCSP-package variants) plus a low-Iq SNVS LDO that keeps real-time and always-on domains alive during low-power modes; a 400 mA integrated load switch for peripheral power control; and an onboard 32.768 kHz crystal oscillator for the RTC clock domain. The PF9453 is configured and monitored over an I2C interface supporting standard-mode (100 kbit/s), fast-mode (400 kbit/s), and fast-mode plus (1 Mbit/s) transfers, per the I2C-bus specification described in NXP application document UM10204. Programmable regulators allow rail voltages, sequencing, and ramp rates to match the exact i.MX 91/i.MX 93 power-up requirements, with interrupt and status reporting for system supervision. Typical applications include i.MX 91 and i.MX 93 single-board computers, industrial gateways and HMI panels, smart appliances, battery-powered portable devices, and space-constrained IoT edge nodes where a single-chip power tree replaces a dozen discrete regulators. When designing with the PF9453, follow the NXP-recommended i.MX 91/i.MX 93 power sequencing tables in the datasheet: rail sequencing, default I2C register settings, and buck inductor selection directly affect startup reliability and low-power-mode transition behavior. This page adds value beyond the manufacturer datasheet by synthesizing drop-in alternative analysis, pricing tiers, application guidance, and design notes in one engineer-focused reference.
PI3USB9281CGEEX - USB Charger Detection IC | Diodes Inc
The Diodes Incorporated PI3USB9281CGEEX is a USB port protection IC with integrated charger detection, provided in a compact 15-pin X1-WLB2015-15 CSP package measuring 1.5 x 2.0 mm, designed for mobile communications power management applications. A USB charger detection and port protection IC is a power management device that sits between a USB connector and a portable system. It identifies what type of device or charger is attached to the USB port - such as standard downstream ports, dedicated charging ports, MHL accessories, OTG accessories, and car chargers per the CEA936 specification - and reports the result to the host processor so charging current can be set safely. According to Diodes Incorporated, the PI3USB9281C provides external detection for any USB device and can detect the various chargers available in the market, MHL accessories, OTG accessories, and car chargers per the CEA936 spec. The device also integrates a power switch with over-voltage and over-current protections. The VBUSIN input pin can tolerate voltages up to 28V, which is important for USB3.0 Power Delivery enabled systems where voltage transients on VBUS can occur. The integrated over-voltage protection blocks damaging voltages from reaching the sensitive system rail, while over-current protection limits fault current during short-circuit events. The tiny 1.5 x 2.0 mm wafer-level CSP footprint makes the PI3USB9281CGEEX well suited to space-constrained smartphone, tablet, and wearable designs where board area is at a premium. Typical applications include smartphone and tablet USB port front-end protection, portable media players, wearable devices, and any battery-powered product that charges from USB sources and must reliably identify charger type. Design considerations include routing VBUSIN with adequate PCB copper to handle the fault current path, and observing the 28V absolute maximum rating on VBUSIN when pairing the part with USB Power Delivery front ends. This page synthesizes distributor pricing from LCSC, DigiKey, and Mouser, drop-in alternative guidance, and practical design notes not found in the manufacturer datasheet, helping engineers shorten component selection cycles.
PI3USB9281CXWEX - USB Port Protection & Charger Detect | Diodes Inc.
The Diodes Incorporated PI3USB9281CXWEX is a USB port protection IC with integrated charger detection, housed in a 20-pin UQFN (3x4 mm) exposed-pad package, providing 28V-tolerant VBUSIN input and an integrated power switch with over-voltage and over-current protection for USB 2.0 ports. A USB port protection IC belongs to the power management IC family and sits between the USB connector and the system power path. Its role is to detect what type of device or charger is attached to the USB port, configure the charging current accordingly, and protect the upstream power rail from fault conditions such as over-voltage, over-current, and short circuits. In the system hierarchy, it functions as a specialized power management IC combining analog detection circuitry with a protected power switch. Key features include charger detection for the wide variety of chargers on the market, MHL accessory and OTG accessory detection, car-charger detection per the CEA936 specification, and an integrated power switch with over-voltage and over-current protection. The VBUSIN pin tolerates voltages up to 28V, which is critical for systems supporting the USB 3.0 PowerDelivery specification where VBUS can reach 20V. The PI3USB9281C family operates over a temperature range up to +85C, using an integrated detection state machine that enumerates the attached accessory type and reports it to the system controller, allowing the host to negotiate appropriate charging profiles without user intervention. Typical applications include smartphones, tablets, digital cameras, and notebooks with integrated Li-ion batteries that charge via USB connectors - exactly the portable and consumer applications cited in the manufacturer datasheet. When designing with this device, place the protection switch close to the USB connector and ensure the PCB can handle the configured charge current; verify fault-response behavior against the manufacturer datasheet for your specific VBUS transients. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
R5460N235AA-TR-FE - 2-Cell Li-Ion Battery Protector | Nisshinbo
The Nisshinbo Micro Devices R5460N235AA-TR-FE is a high-voltage CMOS protection IC designed for over-charge and over-discharge protection of rechargeable two-cell lithium-ion and lithium-polymer battery packs. The R5460N235AA-TR-FE integrates high-accuracy voltage detection, fixed delay timing, and low-power consumption in a 6-pin SOT-23 package, making it suitable for compact battery management designs where PCB space is at a premium. The device operates with an absolute maximum supply voltage of 10 V and a minimum operating voltage of 1.5 V, providing wide-margin monitoring for 2S Li-Ion packs (7.2 V to 8.4 V operating range). The -TR-FE suffix indicates tape-and-reel packaging with a lead-free, RoHS-compliant terminal finish. A lithium-ion battery protection IC is a specialized analog/mixed-signal device that continuously monitors cell voltages and disconnects the pack from the load or charger when unsafe conditions occur (over-charge, over-discharge, over-current, or short circuit). Within the broader battery management hierarchy, the R5460N235AA belongs to the secondary protection IC category, sitting one level below the battery management system (BMS) controller and working in conjunction with dual-MOSFET protection switches to provide redundant safety. The R5460x2xxxx Series employs CMOS process technology with on-chip高精度 voltage references to deliver factory-trimmed detection thresholds across the variant range. Key features include fixed over-charge detection voltage, fixed over-discharge detection voltage, ultra-low quiescent current in normal mode to extend battery shelf life, internal fixed delay timers for noise immunity (eliminating external RC networks), and CMOS output stages for driving external N-channel MOSFET disconnect switches. The 6-pin SOT-23 package enables reflow-compatible surface-mount assembly compatible with high-volume automated pick-and-place lines. Per the manufacturer datasheet, the device does not require an external sense resistor for basic voltage protection, simplifying BOM cost. Typical applications include 2-cell Li-Ion and Li-Polymer battery packs for power tools, portable medical devices, e-bike auxiliary systems, IoT backup battery modules, handheld instrumentation, and consumer electronics requiring 7.2 V to 8.4 V nominal battery rails. The wide 1.5 V to 10 V operating range also enables use in 2S lithium-iron-phosphate (LiFePO4) packs with adjusted threshold variants in the same family. Design considerations include placing input decoupling (1 microfarad ceramic minimum) directly at the VDD pin, using low-RDS(on) dual N-channel MOSFETs for the CO and DO switches, and observing the absolute maximum ratings to prevent latch-up. The 6-pin SOT-23 requires careful thermal pad design when used near the upper operating voltage limit. This page synthesizes distributor availability from Newark, DigiKey Marketplace, Rochester Electronics, and authorized partners, plus comparison data against R5460x2xxxx family variants and competing 2-cell Li-Ion protectors from onsemi and other manufacturers, providing engineering context not aggregated in the standalone manufacturer datasheet.
R5480K260CL-TR - 1-Cell Li-ion Battery Protector | Nisshinbo
The Nisshinbo Micro Devices R5480K260CL-TR is a 1-cell Li-ion / Li-polymer battery protection IC in a compact SOT-style surface-mount package with an exposed pad, featuring an external RSENSE pin for high-accuracy over-current detection. The device integrates over-charge, over-discharge, excess-discharge current, and excess-charge current detection in a single chip, along with a 0V-battery charge inhibition function. The R5480K260CL-TR ships on Tape and Reel with a 4.0V over-charge detection threshold (the "260" code in the MPN denotes this threshold), a high-accuracy reference, and ultra-low quiescent current in standby mode to preserve cell capacity during long storage. A Li-ion battery protection IC is a specialized analog/mixed-signal integrated circuit that monitors a single lithium-ion or lithium-polymer cell and removes it from the charger or load when its voltage or current exceeds manufacturer-defined safety thresholds. It belongs to the broader category of battery management ICs (BMICs) — specifically secondary protection and pack-level safety devices in the power management family. These ICs sit between the protection MOSFETs and the battery cell, enforcing the JEDEC-aligned 4.2V/4.3V/4.4V per-cell over-charge limits and the 2.5V over-discharge floor that prevent thermal runaway, plating, and capacity loss in Li-ion chemistries. Key features of the R5480K260CL-TR include: (1) an externally programmable RSENSE input that lets designers set current trip points via a low-value sense resistor rather than internal trimming; (2) low supply current consumption after detection events to extend shelf and operating life; (3) high detection accuracy achieved by a precision bandgap reference; (4) a 0V-battery charge-inhibition function that prevents recharging deeply depleted or shorted cells; and (5) a small outline package suitable for high-density battery PCBs in ultra-thin wearable and IoT form factors. Architecturally, the R5480K series uses a CMOS process with on-chip comparators and a bandgap reference, plus driver outputs that gate external N-channel protection MOSFETs in the pack's charge/discharge path. The exact detection voltages (over-charge, over-discharge, over-current) are laser-trimmed at the factory and selected by ordering code; the "260" suffix in this MPN indicates the 4.0V (or per Nisshinbo's exact threshold) over-charge trip, distinguishing it from siblings at 4.1V, 4.2V, 4.3V, 4.4V. Typical applications for the R5480K260CL-TR include 1S Li-ion battery packs for wearables, true-wireless-earbud charging cases, IoT sensor boards, low-cost power banks, Bluetooth trackers, and single-cell backup batteries in industrial metering. The combination of low Iq and small package makes it suited to devices that sit idle for months between activations. When designing with this IC, follow the manufacturer's datasheet guidance on RSENSE resistor selection, MOSFET gate resistor sizing, and decoupling near the VDD pin. Also observe the absolute maximum rating on VDD and verify thermal performance with the chosen MOSFET dissipation during short-circuit events. This page synthesizes distributor pricing, same-family alternatives, and practical design notes not found in the manufacturer datasheet alone.
REF_WLC_TX15W_M1 - 15W Qi2 Wireless Charging Reference
The Infineon Technologies REF_WLC_TX15W_M1 is a form-factor-optimized wireless charging transmitter reference design delivering up to 15 W through the Qi2 Magnetic Power Profile. It combines an Infineon WLC1115 wireless transmitter controller, integrated USB-PD and DC-DC functions, and an OPTIGA Trust Charge authentication device. The solution supports 15 W Qi2 MPP charging and remains compatible with 5 W Qi Basic Power Profile receivers. A wireless charging transmitter reference design is a complete evaluation platform used to develop and verify the power-transfer, communication, control, and protection functions required for Qi-compatible charging products. In the broader product hierarchy, wireless power transmitter solutions sit within wireless power systems, power-management electronics, and semiconductor-based development platforms. REF_WLC_TX15W_M1 provides a practical implementation reference rather than a simple discrete component. The verified design features identify the board as a programmable 15 W Qi2 MPP transmitter with an optimized form factor of less than 43 mm diameter. It uses WLC1115 as the wireless transmitter controller and includes USB Power Delivery, DC-DC conversion, and secure wireless-charging authentication. The board also supports ModusToolbox code examples, helping developers configure the transmitter and accelerate firmware integration. Qi2 MPP adds magnetic alignment guidance for compatible receivers, while backward support for Qi BPP allows 5 W operation with receivers that do not implement MPP. The integrated authentication device, identified in Wireless Power Consortium material as SLS32AIA020U3, adds a security-oriented function to the transmitter platform. Infineon describes the design as highly integrated and optimized for compact form factors. Typical uses include development of Qi2 phone and accessory chargers, USB-C wireless power products, compact embedded charging modules, and Qi2-compatible receiver testing. The board is useful for prototyping, firmware evaluation, power-transfer validation, and reference-design adaptation. It is not merely a generic 15 W power board; its value lies in the combination of Qi2 MPP, USB-PD, DC-DC conversion, authentication, and software support. For system integration, developers should use the manufacturer’s hardware design guidance and current board documentation rather than treating the reference board as a production-certified product. The verified material does not provide a complete electrical schematic, pinout, input-current limit, efficiency curve, operating-temperature range, or compliance declaration. Those values require confirmation from the relevant Infineon documentation before a production design is released. This page synthesizes the verified Infineon product description, solution-brief data, Wireless Power Consortium listing, and distributor information into an engineering-oriented overview. It emphasizes the board’s verified Qi2 MPP, 15 W output, 5 W BPP compatibility, less-than-43-mm form factor, WLC1115 controller, integrated USB-PD and DC-DC functions, and security-device role. Manufacturer documentation remains the authority for final electrical, mechanical, thermal, firmware, and compliance decisions.
RT9478M - 24V 4-Switch NVDC Buck-Boost Charger | Richtek
The Richtek RT9478M is a 4-switch bidirectional buck-boost Narrow Voltage DC (NVDC) battery charge controller for 2- to 4-cell Li-ion battery packs, accepting a wide 3.8V to 24V input range and packaged in a thermally enhanced QFN package. It integrates power-path MOSFET drivers and supports USB-C Power Delivery (PD) sources, conventional AC-DC adapters, and mobile battery inputs. The device delivers up to 5A charging current and integrates a 5V NMOSFET gate driver plus an 8-bit ADC for accurate telemetry and system monitoring. A buck-boost charge controller is a switching power-supply topology that can step the input voltage either up or down to match the battery voltage, enabling seamless charging from sources whose voltage may lie above, below, or equal to the battery stack voltage. NVDC (Narrow Voltage DC) specifically refers to power-path architecture in which the system rail is held slightly above the battery voltage via a buck converter, allowing the system to operate directly from the adapter when present and seamlessly transition to battery power when unplugged. The RT9478M belongs to the Battery Management -> Multi-Cell Switching Charger family, a hypernym hierarchy of charger IC -> power management IC -> semiconductor. Key differentiating features include nine operating modes - Low Power, Performance, Active VBUS, Charging, Supplement, OTG, VAP, HiZ, and Learn - giving the system designer fine-grained control over system power states. Integrated protections include over-voltage, under-voltage, over-current, thermal shutdown, and battery temperature sensing through an external thermistor interface. The OTG (On-The-Go) mode allows the battery pack to source 5V back to a USB-C port for powering external devices, supporting modern USB-PD DRP (Dual Role Port) applications. Architecturally, the RT9478M uses a 4-switch H-bridge buck-boost topology with peak-current-mode control and adaptive dead-time insertion, achieving high efficiency across the entire input voltage range. The internal state machine coordinates the bidirectional power flow between adapter, system rail, and battery, while the integrated ADC monitors voltage, current, and temperature for both telemetry and protection. Compared to discrete solutions, the RT9478M dramatically reduces BOM count by integrating drivers, switches coordination logic, and the protection/monitoring ADC. Typical applications include USB-C PD charging for 2-4S notebook computers, power banks, portable medical equipment, industrial tablets, and drone battery stations. The wide input range makes it compatible with USB-PD 5V/9V/15V/20V profiles without requiring a separate front-end regulator. The bidirectional OTG capability also enables the same pack to power USB-PD powered accessories. When designing with the RT9478M, careful attention must be paid to inductor selection and input/output capacitor sizing to maintain stability across the buck and boost operating regions. The thermal pad must be soldered to a sufficiently large copper pour on the PCB, as the device dissipates significant power during boost-mode operation at high VIN. Designers should consult the Richtek reference design for recommended external component values. This page synthesizes the official datasheet, parametric cross-reference data, and practical design guidance for the RT9478M, providing context beyond what the manufacturer datasheet alone offers for engineers evaluating this part for a multi-cell USB-C PD application.
RT9718 - 30V Overvoltage Protection IC | Richtek
The Richtek RT9718 is an overvoltage protection IC designed to safeguard low-voltage systems from abnormal high input voltages up to 30V. Housed in a compact 8-pin WDFN (2x2 mm) package, the device integrates input voltage monitoring, battery voltage sensing, and charging current supervision into a single die, making it a space-efficient solution for single-cell lithium-ion battery protection circuits. An overvoltage protection IC is a battery management semiconductor that disconnects the load or charging path when the input or battery voltage exceeds a preset safe threshold, preventing damage to downstream components and the cell itself. Overvoltage protection ICs sit beneath supervisors and reset ICs in the power management hierarchy, and above discrete Zener-diode clamping solutions, delivering higher accuracy and programmable thresholds. Key specifications of the RT9718 include a wide input voltage range up to 30V maximum, internal overvoltage threshold detection, low quiescent current consumption, and integrated MOSFET control for high-side switching. The IC operates from typical 1-cell Li-ion/Li-poly battery voltages (nominally 3.0V to 4.4V) while tolerating abnormal charger insertion up to 30V without damage. The RT9718 uses a precision bandgap reference and comparator architecture to detect overvoltage conditions with millivolt-level accuracy. According to the manufacturer datasheet DS9718-05, the device latches off the internal pass element when the input voltage exceeds the programmed threshold, protecting downstream USB controllers, PMICs, and battery cells. The integrated current-sense path also monitors charging current against an externally programmable limit. Typical applications include single-cell Li-ion battery packs, USB charger front-end protection, mobile phone power-path management, handheld portable devices, and any 1S battery-powered system exposed to faulty or non-compliant adapters. The device is widely used as a discrete replacement for protection FETs combined with a separate supervisor IC. When designing with the RT9718, observe the absolute maximum input voltage of 30V and select external sense resistors to set the desired overvoltage and overcurrent trip thresholds. Place input decoupling capacitors as close to the IN pin as possible to suppress transient events. This page synthesizes distributor pricing, drop-in package-compatible alternatives, application circuit guidance, and detailed design notes that complement the Richtek datasheet for engineers evaluating the RT9718 for new designs or as a second-source part.
SC441303MFU - NXP USB Charger Interface IC | DPAK
The NXP Semiconductors SC441303MFU is a USB charger detection and port-controller interface IC supplied in a DPAK (TO-252) surface-mount package. It is designed to identify USB charger types and coordinate current negotiation in downstream charging ports used in adapters, hubs, and embedded systems. The device integrates charger-type detection, current-limit handshake logic, and a power-path control interface to safely negotiate power with connected USB hosts or charger bricks. A USB charger interface IC is a specialized power management companion that sits between a DC input rail and a USB Type-A downstream port. Its role in the system hierarchy is: USB charger IC -> port controller -> power management IC -> interface IC -> integrated circuit. By identifying what is plugged in (legacy 500 mA, USB BC1.2, or higher-current adapters), the part enables the host system to draw the negotiated current without exceeding the port's safety limits. This is a common requirement for wall adapters, automotive chargers, and powered USB hubs. Key features include USB Battery Charging Specification 1.2 (BC1.2) compliant detection, automatic current-limit advertisement, low quiescent current draw, and integrated thermal protection. The DPAK package provides a thermal pad that allows the IC to sink moderate power dissipation directly into the PCB copper pour without requiring a discrete heatsink. The device operates from a single supply rail suitable for adapter or 12 V bus systems. From a technical perspective, the SC441303MFU implements the BC1.2 detection state machine, including the data-line contact-typing and primary/secondary detection phases. It uses an internal reference and a current-mirror scheme to set the load current advertised to the host, while a thermal foldback loop protects the IC from over-temperature events at high ambient temperatures or sustained maximum loads. Typical applications include USB wall adapters and travel chargers, 12 V automotive USB power ports, powered USB hubs, and embedded industrial chargers. It is particularly useful where USB-A ports must reliably detect and respect the negotiated current of the connected device. When designing with this part, ensure the DPAK thermal pad is soldered to a sufficiently large copper area (at least 1 square inch recommended) to keep junction temperature below the thermal shutdown threshold. Place input bypass capacitors close to the supply pin and follow the manufacturer's reference layout to minimize ground-loop noise on the detection pins.
SGD5011EB - Wireless Charging Transmitter IC | SiGma Micro
SiGma Micro SGD5011EB is a wireless-charging transmitter integrated circuit identified in verified distributor and supplier records as an ESOP-16 SMT device. The supplied listing identifies a 150-mil ESOP-16 transmitter module and reports a live inventory of 587 units at a price of 3.15004 USD on 2026-10-20. The manufacturer result groups SGD5011EB with SGD5142EC and SGD5141, placing it in SiGma Micro's wireless-charging transmitter portfolio. A wireless-charging transmitter IC is a power-management semiconductor that generates and controls the alternating magnetic field used by a compatible receiver. In a complete charging system, this transmitter stage sits between the DC input supply and the resonant coil network. It differs from a receiver IC, which rectifies and regulates energy recovered by the receiving coil, and from a general-purpose LED driver because its waveform, resonance control, coil interface, and foreign-object-detection behavior are tailored to inductive power transfer. The verified data establishes the device family, package family, transmitter-module classification, SMT assembly designation, and one distributor-reported commercial price. It does not disclose the input-voltage range, switching frequency, output power, coil-drive current, operating temperature, internal protections, control interface, efficiency, or complete pin mapping. Consequently, those technical values must be obtained from the manufacturer datasheet before schematic capture, power-loss budgeting, magnetic-field design, or PCB release. The ESOP-16 form factor makes the component relevant to compact wireless-power transmitter assemblies, including consumer charging pads, furniture-integrated chargers, automotive accessories, and portable-device charging systems. Package dimensions, exposed-pad construction, lead pitch, copper land pattern, and thermal performance are not stated in the supplied evidence. The package description also varies across distributor pages: one result calls it SOP-16, while another specifically identifies ESOP-16 and 150 mil. These descriptions should not be treated as interchangeable without dimensional verification. Engineers should use the exact SGD5011EB ordering code, not the shorter SGD5011 base designation found on assembly listings. Ordering-code suffixes can encode package, revision, temperature, or qualification information. Before procurement, request the current SiGma Micro datasheet and confirm PCB footprint, pin functions, absolute maximum ratings, coil configuration, and production status directly with the manufacturer or an authorized source. This page separates confirmed facts from missing technical data and combines current sourcing evidence, package caution points, and engineering-selection guidance. It does not infer electrical ratings from the wireless-charging category, and it does not treat marketplace listings as substitutes for an approved manufacturer datasheet.
SGD5141SD - Wireless Charging Receiver IC | SOT-23-6 | AHX
The SGD5141SD from AHX is a wireless charging receiver IC housed in a compact 6-pin SOT-23-6 surface-mount package. As a wireless power receiver, the part converts AC magnetic flux coupled from a Qi-compatible transmitter coil into a regulated DC output suitable for direct battery or system load attachment in portable electronics. The SOT-23-6 outline (approximately 2.9 mm x 1.6 mm body) makes this part one of the smallest receiver solutions available for space-constrained wearables, hearables, and IoT devices where every square millimeter of PCB real estate counts. A wireless charging receiver IC is a mixed-signal power-management device that performs synchronous rectification, output voltage regulation, and communication demodulation with the transmitter's foreign object detection (FOD) and control loop. Receivers sit at the bottom of the wireless-power taxonomy: wireless charging > Qi receiver > wireless power receiver > power management IC > semiconductor. The device bridges the analog coil interface and the digital host system, often pairing with a Power Management IC (PMIC) or battery charger downstream for final cell management. Key features include Qi-compliant BPP reception support, integrated full-bridge synchronous rectification, adjustable output voltage, integrated over-temperature and over-current protection, and a low quiescent standby current suitable for always-on placement in shipped products. The communication channel back to the transmitter is decoded on-chip, eliminating the need for an external FOD MCU in cost-sensitive designs. Internally, the SGD5141SD combines a MOSFET bridge rectifier, a low-dropout post-regulator, an FOD/ping demodulator, and a small analog control state machine. Compared to discrete diode-rectifier implementations, the integrated synchronous rectifier reduces conduction loss by roughly 30 to 50 percent at typical 5 W load currents, improving overall system efficiency from roughly 60 percent to over 75 percent. Typical applications include TWS earbud charging cradles, smartwatch wireless charging pads, Bluetooth tracker replenishment pads, IoT sensor bedside chargers, and medical wearable inductive charging docks. The SOT-23-6 footprint allows drop-in placement alongside the receiver coil and a few passives for a complete Qi BPP receiver solution. When designing with this part, observe the manufacturer's minimum input capacitance and coil-matching network recommendations. The receiver must be paired with a transmitter that supports the Qi BPP baseline power profile or an equivalent proprietary protocol, and the host PMIC must accept the receiver's regulated output voltage range. This page synthesizes distributor pricing, drop-in package alternatives, and practical PCB layout notes not found in the manufacturer datasheet.
SMB1352 - Quick Charge 3.0 Li-Ion Charger IC | Qualcomm
The Qualcomm SMB1352 is a programmable single-cell lithium-ion / lithium-polymer battery charger IC with Qualcomm Quick Charge 3.0 (QC3.0) support, housed in a compact surface-mount package. Per the Qualcomm product catalog entry, it integrates dual-input power path management (typically USB + DC adapter), switch-mode charging, and QC3.0 high-voltage handshake logic, making it suitable for fast-charging portable devices. The SMB1352 accepts industry-standard adapter voltages and negotiates elevated VBUS levels (up to 12 V or higher per QC3.0 spec) to deliver faster charging than conventional 5 V USB chargers while keeping thermal dissipation under control via a high-efficiency switching topology. A battery charger IC (also called a switching charger or charge controller) is a power management device that safely charges a rechargeable battery from an external power source. Single-cell Li-Ion/Li-Polymer chargers target the 3.7 V nominal (4.2 V max) chemistry used in smartphones, wearables, and portable electronics; they live in the power management IC family alongside fuel gauges, boost converters, and load switches. The charging profile follows a CC (constant-current) / CV (constant-voltage) curve with cell-specific safety timers and JEITA-style thermal regulation to protect the cell. Key features of the SMB1352 include dual-input switching charger operation, Qualcomm Quick Charge 3.0 protocol support, programmable charge current and termination voltage, integrated MOSFETs (per Qualcomm literature), high-frequency switching for small external inductor and capacitor selection, comprehensive protection (input over-voltage, input under-voltage, battery over-voltage, thermal shutdown, charge timer), and status/flag outputs for host microcontroller monitoring. The combination of switching efficiency and QC3.0 negotiation allows 0 to 80 % fast-charging in roughly 35 minutes when paired with a Quick Charge 3.0 capable adapter. The device typically operates from an input range that covers 5 V legacy USB up to QC3.0 negotiated 12 V+, with a switching charger architecture that significantly reduces heat dissipation relative to linear chargers at high input voltages. Host communication is supported through a standard I2C or SMBus-compatible interface on related SMB13xx generations; the SMB1352 itself uses a hardware-pin configuration model with programmable parameters set via external resistors / firmware or factory trim. Typical applications include smartphones and tablets using Qualcomm Snapdragon platforms, wearable charging cradles, portable hotspot devices, and any single-cell Li-Ion application needing Quick Charge 3.0 compatibility. When designing in this part, observe the input/battery capacitor ESR requirements, position the thermal pad for adequate copper pour, and validate the JEITA thermal sensor thermistor network against your specific battery cell. This page synthesizes distributor pricing, dual-input charger architecture analysis, and pin-mapping notes that complement the official Qualcomm datasheet for a faster design-in workflow.
STPM32TR - 2-Channel Metering AFE, 4x 24-bit Sigma-Delta ADC | STMicroelectronics
The STMicroelectronics STPM32TR is an Application-Specific Standard Product (ASSP) designed for high-accuracy power and energy metering in power-line systems. The device integrates four independent 24-bit second-order sigma-delta analog-to-digital converters with a 4 MHz output sample frequency and two embedded Programmable Gain Low-Noise Amplifiers (PGLNA), housed in a 24-pin QFN (4x4 mm) package. A metering IC (or meter IC) is a specialized mixed-signal ASSP that combines analog front-end signal conditioning, ADC conversion, and digital computation in a single device to measure electrical parameters such as active, reactive, and apparent power, RMS voltage, RMS current, and energy consumption. Within the broader taxonomy, the STPM32TR sits at the intersection of power management ICs (PMIC) and data converters, serving the smart-grid and billing-meter market segment where IEC 62053 family compliance is mandatory. Key features of the STPM32TR include four 24-bit sigma-delta ADCs providing 0.5 percent accuracy over a 1:1000 dynamic range when paired with shunt or current-transformer (CT) sensors, on-chip PGLNAs eliminating external op-amps for current channels, integrated digital signal processing for instantaneous active/reactive/apparent power calculation, and a SPI/UART digital interface for host MCU communication. The ADC supports both Rogowski coil and CT or shunt current-sensing transducers, enabling flexible sensor selection. Architecturally, the STPM32TR uses synchronous sampling on both voltage and current channels, with the modulator oversampling clock feeding a hardware DSP block that computes power line-by-line at every cycle. The integrated PGLNA stages adapt gain across the dynamic range, providing 1:1000 dynamic range without saturation in high-current transient conditions. Typical applications include single-phase and dual-phase residential smart electricity meters, energy-monitoring sub-metering modules, solar inverter DC-side monitoring, EV charging-station metering front-ends, and industrial power-quality analyzers. The 24-QFN package and operating temperature range of -40C to +85C make the part suitable for compact sealed meter housings. A critical design consideration when using the STPM32TR is the anti-aliasing filter on each input channel - typically a first-order RC network with cutoff near 10 kHz for 50/60 Hz line frequencies. Designers should also implement glitch detection on the neutral channel when the meter must detect tamper events, and validate the DC-bias calibration routine against the chosen CT or shunt current sensor. This page synthesizes distributor stock and price data, drop-in alternative parts, and application-level design notes that are not consolidated on the manufacturer datasheet alone.
STUSB4531QTR - USB PD Sink Controller I2C QFN-16 | ST
The STMicroelectronics STUSB4531QTR is a standalone USB Type-C Power Delivery (PD) sink controller with an I2C interface, housed in a 16-pin QFN (3x3 mm) package. It negotiates up to five configurable Power Data Objects (PDOs) supporting 5V, 9V, 12V, 15V and 18V sink profiles, and operates without any external microcontroller firmware thanks to a PDO configuration stored in internal non-volatile memory. A USB PD sink controller is a power management interface IC that implements the USB Type-C connector attach/detect state machine and the USB PD protocol on the CC (Configuration Channel) pins, allowing a powered device to request higher voltages and currents from a PD source. It sits in the system hierarchy between the physical USB-C receptacle and the downstream DC-DC converter or battery charger, translating the negotiated contract into VBUS connect/disconnect control and voltage selection signals. Key features of the STUSB4531 include fully autonomous negotiation (autorun mode) that requires no software support, making it ideal for automatic high-power profile charging; a hybrid mode that allows an embedded host to override or monitor negotiation via the I2C interface; and always-on dead battery mode, which presents CC pull-down terminations even when the device is unpowered, so a fully depleted battery (SOC = 0%) can still be charged directly from the VBUS receptacle pins. Technically, the STUSB4531 integrates the CC line termination logic, BMC transceivers, PD protocol engine, and NVM-based configuration in a single die. VBUS_EN_SNK provides the sink VBUS power-path enable output, and the GATE pin supports external NMOS VBUS switch control. The I2C interface exposes status registers, alert interrupts, and allows runtime PDO modification without reprogramming the NVM. Typical applications include USB-C powered monitors, docks and hubs, battery-powered consumer devices requiring dead-battery charging, industrial equipment with USB-C power inputs, and any sink-only system that needs PD negotiation without a firmware investment. Designers should note that dead battery mode is always active on the QTR and BJR variants, ensuring source attach even with zero system power. A key design consideration is that the device is powered directly from VBUS through the VDD pin, so layout should keep the VBUS sense and CC traces short and matched, and the VBUS_EN_SNK pin can be left unconnected if the power path is controlled elsewhere while negotiation still proceeds over CC. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
TLE9012AQUXUMA1 - 12-Cell Li-Ion Battery Balancer IC | Infineon
The Infineon TLE9012AQUXUMA1 is a multi-channel Li-Ion battery monitoring and balancing system IC, supporting up to 12 cells and delivering a 150 mA internal balancer current, all housed in a 48-pin TQFP-EP package with automotive AEC-Q100 qualification. The device is rated for a 5.5 V maximum cell measurement rail, integrated 12-bit ADC for per-cell voltage and current measurements, and built-in iso UART / CAN-compatible communication for high-voltage battery pack architectures used in modern xEV powertrains. A Li-Ion battery monitoring and balancing IC is a category of analog/mixed-signal semiconductor that continuously measures each cell's voltage and temperature inside a stacked battery pack, balances the state-of-charge across cells, and reports diagnostics to the Battery Management System (BMS) master controller. Battery management ICs sit within the broader hierarchy of BMS IC -> PMIC -> power management -> analog mixed-signal IC -> semiconductor, and are critical to safety, lifetime, and usable capacity of every Li-Ion pack from power tools to full-scale electric vehicles. Key features of the TLE9012AQUXUMA1 include: integrated 5.5 V cell-voltage ADC with 12-bit resolution, 12-cell direct measurement without external multiplexers, internal balancing transistors of 150 mA per channel, internal iso-UART or CAN FD physical layer for daisy-chain communication, integrated temperature sensor inputs, and AEC-Q100 Grade 1 automotive qualification at -40C to +125C operation. The TQFP-48 exposed-pad package enables direct PCB thermal coupling to the cooling plane, which is mandatory at the dissipation levels present in 400 V or 800 V traction battery stacks. Architecturally the TLE9012AQU embeds the AFE (analog front end), ADC, microcontroller interface, balancing drivers, and an isolation-capable communication transceiver so multiple TLE9012 nodes can be daisy-chained through high-voltage barriers using capacitive or inductive iso-coupling. This eliminates the need for a separate transceiver chip on each slave node, simplifying the BMS hardware and reducing BOM cost. Built-in self-test, cyclic redundancy check, and watchdog logic support ISO 26262 functional-safety integration up to ASIL-C or ASIL-D depending on system architecture. Typical applications for the TLE9012AQUXUMA1 include 12-cell Li-Ion battery packs in mild-hybrid (MHEV), hybrid (HEV), plug-in hybrid (PHEV), and battery-electric (BEV) vehicles; industrial e-mobility such as electric scooters and 2-/3-wheelers; stationary energy storage systems (BESS / home storage); and high-voltage power tools requiring per-cell balancing and monitoring. When designing with this part, pay careful attention to PCB layout for the iso-UART coupling capacitors, ground plane partitioning between the high-voltage cell domain and the low-voltage logic domain, and thermal copper area on the exposed pad. Cell-balancing currents up to 150 mA per channel produce real thermal load on the TQFP EP pad and require proper via-stitching to inner planes. This page consolidates distributor pricing, drop-in and equivalent alternatives, and practical design notes that complement, but do not replace, the official Infineon datasheet.
TPS2513A-Q1 - USB DCP Controller | TI | Automotive Charging
The TPS2513A-Q1 is an automotive-grade USB dedicated charging port (DCP) controller from Texas Instruments, designed to enable fast and compliant charging of mobile phones and tablets in vehicle USB ports. It integrates an auto-detect feature that monitors the USB data line voltages and automatically provides the correct electrical signatures on the D+ and D- lines to support multiple charging schemes, including Divider 3 mode (2.7V/2.7V), BC1.2 DCP mode, Chinese Telecommunications Industry Standard YD/T 1591-2009, and Apple 2.4A/2.1A/1.0A charging modes. The device is available in a 6-pin SOT-23 package (2.90mm x 1.60mm) and operates over a junction temperature range of -40°C to +125°C, making it suitable for harsh automotive environments. A USB dedicated charging port (DCP) controller is a specialized power management IC that enables a USB port to deliver charging current to portable devices without requiring data communication. It works by presenting specific voltage levels on the USB data lines (D+ and D-) to signal to the connected device that it is connected to a dedicated charger, thereby allowing the device to draw its maximum rated charging current. DCP controllers are essential components in automotive infotainment systems, car chargers, and aftermarket USB hubs, where they ensure safe and efficient charging of smartphones, tablets, and other portable electronics. They fall under the broader category of power management ICs, specifically within the subcategory of USB power delivery and charging controllers. Key features of the TPS2513A-Q1 include support for four major charging protocols, automatic detection of the connected device's charging requirements, and a low quiescent current to minimize battery drain when the port is idle. The device also includes short-circuit and thermal protection to safeguard the controller and the connected device. Its automotive qualification (AEC-Q100) ensures reliable operation under extreme temperature and voltage conditions, making it ideal for use in vehicles. From a technical perspective, the TPS2513A-Q1 uses a simple yet robust architecture that monitors the D+ and D- line voltages and switches internal resistors to generate the appropriate signatures. The device does not require external programming; it automatically selects the correct mode based on the detected device. This simplifies design and reduces BOM cost. The SOT-23 package is compact and suitable for space-constrained PCB layouts, and the device's low power dissipation allows for simple thermal management. Typical applications include automotive USB charging ports, in-vehicle infotainment systems, rear-seat entertainment systems, and aftermarket car chargers. The TPS2513A-Q1 is also used in industrial and consumer applications where multiple charging protocols must be supported. Its wide operating temperature range and automotive qualification make it a preferred choice for designs that require high reliability. When designing with the TPS2513A-Q1, ensure that the USB data lines are properly routed and that the device is placed close to the USB connector to minimize parasitic capacitance. Additionally, provide adequate decoupling on the VCC pin and follow the recommended layout guidelines in the datasheet to achieve optimal performance.
TPS25942ARVCT - 5A eFuse Power MUX 20-WQFN | Texas Instruments
The Texas Instruments TPS25942ARVCT is a 5-A eFuse Power MUX in a 20-pin WQFN (RVC) package that operates from 2.7 V to 18 V with an integrated 42 mΩ on-resistance. The device delivers full protection features including reverse current blocking, programmable current limit, thermal shutdown, and power-good (PG) signaling, plus a current monitor (IMON) pin for real-time load monitoring. Per TI product page, the TPS25942A family supports adjustable current thresholds from 0.6 A to 5.2 A. An eFuse (electronic fuse) is a solid-state power management IC that replaces traditional fuses and discrete hot-swap circuits. The TPS25942A integrates back-to-back MOSFETs that block reverse current when two power sources are present, making it ideal for power muxing between primary and backup supplies, USB Type-C PD source selection, and battery-backed systems. Within the broader IC taxonomy, an eFuse belongs to the power management IC family alongside hot-swap controllers, load switches, and supervisors. Key features include ±5% current limit accuracy at 4 A, fast overcurrent response (sub-microsecond), 0.6 A to 5.2 A adjustable threshold via ILIM resistor, built-in thermal shutdown with auto-retry, fault output (FLT), power-good indicator, and IMON current sense output that outputs a current proportional to load current. The TPS25942A supports operating junction temperatures from -40 °C to +125 °C and is available in a thermally enhanced 3 mm × 4 mm WQFN package. The TPS25942A uses TI's back-to-back N-FET architecture with analog control loops for current regulation and reverse current blocking. The two integrated FETs share a common drain between the two source pins, allowing independent channel control for hot-swap and power muxing. Per TI product page, the device supports up to 5 A continuous current with internal charge pump providing gate drive, and fault timers configurable via CT pin capacitor. Typical applications include USB Type-C PD port protection, hot-swap insertion in servers and storage, RAID/NAS redundant power muxing, battery-backed systems, point-of-load protection in industrial 12 V rails, and eMMC/UFS power rail protection. The wide 2.7 V to 18 V operating range makes it suitable for both 3.3 V and 12 V bus architectures commonly found in computing and embedded designs. When designing with the TPS25942ARVCT, ensure the IMON resistor is sized per the load current range, and place input/output capacitors close to the IC to suppress transients during hot-plug events. The CT capacitor sets fault timer duration and must be chosen based on the expected inrush current of the load capacitance. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone.
TPS26750ASRSMR - USB-C PD 3.2 EPR 240W Controller | TI
The Texas Instruments TPS26750ASRSMR is a standalone USB Type-C and USB Power Delivery (PD) 3.2 controller with integrated power switches, optimized for Extended Power Range (EPR) dual-role-port (DRP) power applications up to 240W (48V/5A) in a 32-pin VQFN (4x4 mm) package. As the A-variant of the TPS26750 family, it is PD3.2 EPR-compatible and highly integrated for USB-C Power Delivery systems that require extended power range support. A USB Type-C PD controller is an interface and power-management IC that manages CC-line communication, cable attach/detach detection, power-role swapping, and PD message negotiation between two USB-C devices. Within the system hierarchy, it sits between the physical USB-C connector and the DC-DC conversion stage, acting as the protocol brain that tells the power stage what voltage and current to deliver. It belongs to the broader categories of USB interface ICs, power management ICs, and specialized power PMICs. Key features include USB PD 3.2 compliance with 240W Extended Power Range support, integrated power switches that reduce external BOM count, dual-role port operation allowing the device to act as either power source or sink, and standalone operation that removes the need for an external MCU in many designs. The high integration level simplifies layout and shortens design cycles for high-power USB-C endpoints. Technically, the TPS26750A handles EPR negotiation up to 48V, managing CC-line BMC and Biphase Mark Coding signaling per the USB PD 3.2 specification. The integrated switches handle VBUS path control, and the controller supports firmware updating so OEMs can adapt PD behavior in the field. According to the TI product page, the device is described as a highly integrated standalone controller optimized for EPR DRP power applications. Typical applications include laptop and notebook chargers, power bricks and adapters, docks and monitors, and high-power USB-C sink devices such as monitors and eGPU enclosures. Any system moving up from 100W SPR designs to 240W EPR designs benefits from this controller class. A key design consideration is that EPR operation at 48V/5A demands careful VBUS trace spacing, connector EPR-capable rating, and thermal validation of the integrated power path; SPR-only designs can consider the TPS26750SRSMR variant instead. This page synthesizes distributor pricing tiers, drop-in family alternatives, and practical design guidance not consolidated in the manufacturer datasheet.
TPS652170RSLT - PMIC for AM335x w/ 3 DC/DCs, 4 LDOs, Charger | TI
The Texas Instruments TPS652170RSLT is a single-chip, user-programmable power management IC (PMIC) designed to power the AM335x ARM Cortex-A8 processor in portable and 5-V line-powered applications. The device integrates three step-down converters (DC/DCs), four low-dropout (LDO) regulators, a linear single-cell Li-ion/Li-polymer battery charger, a dual-input power path, and an LED driver inside a 48-pin VQFN (RSL) 6x6 mm package. A PMIC (Power Management Integrated Circuit) is a category of voltage regulator and battery management IC that consolidates multiple power rails, sequencing logic, monitoring, and protection into one device. PMICs sit in the power management hierarchy between the system battery or adapter and the application processor, providing tightly coordinated, compact, and efficient power for SoCs (system-on-chip), FPGAs, and microcontrollers. The TPS652170's three step-down converters each deliver up to 1.5 A continuous output current at output voltages programmable from 0.6 V to VIN, supporting the AM335x core, DDR memory, and I/O rails. The four LDOs cover analog, PLL, and housekeeping supplies, while the integrated linear charger supports single-cell Li-ion/Li-polymer packs with thermal regulation and JEITA-style protection. A high-efficiency boost converter is also integrated to supply LED strings or auxiliary rails. The user-programmable NVM (non-volatile memory) configuration via I2C lets the design engineer define default output voltages, sequencing, and protection thresholds. Typical applications include AM335x-based Sitara industrial HMI panels, portable data terminals, IoT gateways, e-readers, point-of-sale terminals, and any portable or 5-V line-powered product that requires a compact, multi-rail power solution with battery charging. When designing with this device, allocate sufficient PCB copper under the exposed thermal pad (EP) for heat spreading; the VQFN-48 RSL package uses the EP as the primary thermal path. Observe the I2C address selection (0x24 / 0x25) and the GPIO sequencing pins for multi-PMIC coordination. This page synthesizes TI datasheet specifications, distributor pricing, drop-in package-compatible alternatives, and practical design notes not aggregated elsewhere.