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TPS92641PWPT

Texas Instruments · LED Drivers · HTSSOP-16-EP

TPS92641PWPT from Texas Instruments, in a HTSSOP-16-EP. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 VIN power_in Input supply voltage from 7V to 85V operating range; bypass with 1-µF capacitor.
2 RON input Oscillator frequency setting pin; connect resistor to VIN and capacitor to GND.
3 UDIM input Undervoltage lockout and PWM dimming dual-function input with 1.276V threshold; connect resistor divider from VIN.
4 VOUT input Feedback input for regulated output voltage; connect scaled-down resistor divider from VOUT.
5 VREF power_in Precision 3V±2% system reference voltage with maximum 2.1mA source current; bypass with 100nF to 1µF capacitor.
6 IADJ input Analog current adjustment input; connect resistor divider from VREF or NTC thermistor to GND for thermal foldback.
7 COMP output Compensation network output; connect ceramic capacitor to GND for loop compensation.
8 SDIM input PWM dimming input for shunt FET dimming operation; internally pulled high when not driven.
9 SDRV output Shunt FET gate driver output; provides inverted signal to drive external parallel NFET across LED load.
10 GND power_in System ground return; connect to DAP for thermal relief via 6-9 vias.
11 CS input Current sense input; connect to positive terminal of sense resistor at bottom of LED stack.
12 LG output Low-side NFET gate driver output; use series resistor to limit slew rate and mitigate EMI noise.
13 VCC power_out Bias supply output for controller; bypass with 2.2µF to 3.3µF ceramic capacitor rated 10V minimum.
14 BOOT power_out Bootstrap supply output for high-side gate drive; connect 100nF ceramic capacitor and Schottky diode to VCC.
15 SW output Switch node output of buck regulator.
16 HG output High-side NFET gate driver output; use series resistor to limit slew rate and mitigate EMI noise.
17 DAP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package HTSSOP-16-EP
Category LED Drivers
Pins 17

CAD (KiCad official)

  • Symbol: TPS92641PWPT
  • Footprint: Package_SO:TSSOP-16-1EP_4.4x5mm_P0.65mm
  • 3D model: HTSSOP-16-EP (KiCad packages3D, STEP)
  • 3D model files: tps92641pwpt-etched.step / tps92641pwpt-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tps92641pwpt.step / tps92641pwpt.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (42 pp, sha256 213e3a6db0ea6712, retrieved 2026-10-01, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF