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TPS92381PWPR

Public Made by Adom

by adom

Texas Instruments LED Drivers, HTSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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docs tps92381pwpr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 4d ago
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README.md Initial commit: component/tps92381pwpr · Ray 5d ago
tps92381pwpr-etched.fit.json tps92381pwpr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 4d ago
tps92381pwpr-etched.glb tps92381pwpr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 4d ago
tps92381pwpr-etched.step tps92381pwpr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 4d ago
tps92381pwpr.glb Publish 0.1.0 · Ray 5d ago
tps92381pwpr.kicad_mod Publish 0.1.0 · Ray 5d ago
tps92381pwpr.kicad_sym Publish 0.1.0 · Ray 5d ago
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tps92381pwpr.step Publish 0.1.0 · Ray 5d ago

TPS92381PWPR

Texas Instruments · LED Drivers · HTSSOP-20

TPS92381PWPR from Texas Instruments, in a HTSSOP-20. 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 power pin; used for input voltage OVP detection and current sense.
2 LDO power_out Regulated output of internal LDO; connect 1-μF capacitor between this pin and ground.
3 FSET input Frequency setting pin; connect 24 kΩ to 219 kΩ resistor to ground for normal operation.
4 VDDIO/EN power_in Digital I/O supply voltage input and device enable control.
5 FAULT tri_state Open-drain fault signal output indicating device fault conditions; may be left floating if unused.
6 SYNC input DC-DC synchronization input; connect to ground to disable spread spectrum or to VDDIO/EN to enable spread spectrum.
7 PWM input PWM brightness control input.
8 NC unconnected No connect.
9 GND power_in Ground reference.
10 ISET input LED current setting pin; connect 20 kΩ to 129 kΩ resistor to ground for normal operation.
11 GND power_in Ground reference.
12 OUT4 output LED channel 4 current sink output for TPS92381; must be connected to ground if unused.
13 OUT3 output LED channel 3 current sink output; must be connected to ground if unused.
14 OUT2 output LED channel 2 current sink output; must be connected to ground if unused.
15 OUT1 output LED channel 1 current sink output; must be connected to ground if unused.
16 FB input DC-DC feedback input for output voltage; must be connected to center of resistor divider using feedback resistors greater than 5 kΩ.
17 PGND power_in DC-DC converter power ground.
18 SW output DC-DC switching node; output of internal power FET for boost or SEPIC converter mode.
19 NC unconnected No connect.
20 VIN power_in Input power pin; also used for input voltage detection and OVP protection.
21 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package HTSSOP-20
Category LED Drivers
Pins 21

CAD (KiCad official)

  • Symbol: TPS92381PWPR
  • Footprint: Package_SO:TSSOP-20-1EP_4.4x6.5mm_P0.65mm_EP2.15x3.35mm
  • 3D model: HTSSOP-20, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 1.2 mm nominal TSSOP height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
  • 3D model files: tps92381pwpr-etched.step / tps92381pwpr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tps92381pwpr.step / tps92381pwpr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (41 pp, sha256 c88baadf4de50f76, 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