component
TPS92381PWPR
Public Made by Adomby adom
Texas Instruments LED Drivers, HTSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownTPS92381PWPR
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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tps92381pwpr.step/tps92381pwpr.glbare 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, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).