component
UCC2813QDR-3Q1
Public Made by Adomby adom
Texas Instruments AC-DC Controllers And Regulators, SOIC-8. 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
markdownUCC2813QDR-3Q1
Texas Instruments · AC-DC Controllers And Regulators · SOIC-8
UCC2813QDR-3Q1 from Texas Instruments, in a SOIC-8. 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 | COMP | output | Error amplifier output and PWM comparator input with internal soft-start ramping from 0.5V to REF-1V (3V typical for UCC2813-3-Q1) over 4ms during power-up or fault recovery. |
| 2 | FB | input | Inverting input to error amplifier for feedback voltage regulation with typical input voltage 1.92-2.05V at VCOMP=2V for UCC2813-3-Q1. |
| 3 | CS | input | Current sensing input with 1.65V/V typical gain, 100ns leading-edge blanking, and maximum input signal of 1V at VCOMP=5V. |
| 4 | RC | input | Oscillator timing pin for programming switching frequency (26-36kHz for UCC2813-3-Q1) and 100% maximum duty cycle via external 10-200kΩ resistor and 100-1000pF capacitor. |
| 5 | GND | power_in | Signal reference ground and power ground for all device functions and signal paths. |
| 6 | OUT | output | High-current totem-pole gate driver output with ±1A peak current capability, 41-75ns rise/fall times at 1nF load, and CMOS output structure with internal zener clamp to VCC. |
| 7 | VCC | power_in | Bias power supply input with UVLO turn-on threshold of 3.7-4.5V (4.1V typical) and turn-off of 3.2-4.0V (3.6V typical); absolute maximum 12V with series current-limiting resistor and 0.1µF bypass capacitor to GND required. |
| 8 | REF | output | 4V voltage reference output (±1.5% accuracy at 25°C) with 5mA maximum load current serving as error amplifier and logic bias source; minimum 0.1µF bypass capacitor to GND required. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
UCC2813QDR-3Q1 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
ucc2813qdr-3q1-etched.step/ucc2813qdr-3q1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ucc2813qdr-3q1.step/ucc2813qdr-3q1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (47 pp, sha256
114dd59e68535e9e, retrieved 2026-10-03, 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).