component
UCC3813DTR-4
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
markdownUCC3813DTR-4
Texas Instruments · AC-DC Controllers And Regulators · SOIC-8
UCC3813DTR-4 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 clamping from 0V to 5V over 4ms. |
| 2 | FB | input | Inverting input of error amplifier with 2.5V typical input voltage; minimize lead length and stray capacitance for stability. |
| 3 | CS | input | Current sense input with 1.65V/V typical gain, 100ns leading edge blanking, 0.9-1.1V maximum signal, and ±200nA input bias current. |
| 4 | RC | input | Oscillator timing programming pin; external RC network sets switching frequency up to 1MHz and maximum duty cycle (50% for UCC3813-4). |
| 5 | GND | power_in | Signal and power reference ground for all device functions; separate return paths recommended to isolate signal and gate drive currents. |
| 6 | OUT | output | High-current totem-pole gate driver output with ±750mA to ±1A peak drive capability, actively held low during UVLO, with on-chip Zener clamping to VCC. |
| 7 | VCC | power_in | Bias power supply input requiring 11V minimum from low impedance source, 0.1µF bypass capacitor, with internal Zener regulation at 13.5V typical. |
| 8 | REF | output | 5V (4.925-5.075V) regulated voltage reference output with ±1.5% accuracy at 25°C, 0.1µF bypass capacitor required, and 5mA maximum output current. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
UCC3813DTR-4 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
ucc3813dtr-4-etched.step/ucc3813dtr-4-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ucc3813dtr-4.step/ucc3813dtr-4.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (53 pp, sha256
e691a7fcf4f2163a, retrieved 2026-10-05, 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).