component
UCC3813D-0
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.
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UCC3813D-0
Texas Instruments · AC-DC Controllers And Regulators · SOIC-8
UCC3813D-0 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; receives feedback compensation and provides ramp voltage for PWM control logic. |
| 2 | FB | input | Inverting input of the error amplifier for output voltage feedback control and regulation. |
| 3 | CS | input | Current sense input to PWM and overcurrent comparators; includes internal 100ns leading edge blanking to reject switching transients. |
| 4 | RC | input | Oscillator timing pin with external R-C network for programming switching frequency up to 1MHz and maximum duty cycle 100%. |
| 5 | GND | power_in | Signal reference ground and power ground for all device functions and internal circuits. |
| 6 | OUT | output | High-current gate driver output capable of ±1A peak current for power MOSFET control; actively held low during UVLO condition. |
| 7 | VCC | power_in | Bias power supply input with internal regulation to 13.5V; absolute maximum rating 12V requires series limiting resistor from higher voltage sources. |
| 8 | REF | power_out | Precision 5V voltage reference output (1.5% accuracy at 25°C) providing bias and reference for error amplifier and internal logic circuits; 5mA maximum output current rating. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
UCC3813D-0 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
ucc3813d-0-etched.step/ucc3813d-0-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ucc3813d-0.step/ucc3813d-0.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 2026-10-07, 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).
# UCC3813D-0
**Texas Instruments** · AC-DC Controllers And Regulators · SOIC-8
UCC3813D-0 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; receives feedback compensation and provides ramp voltage for PWM control logic. |
| 2 | FB | input | Inverting input of the error amplifier for output voltage feedback control and regulation. |
| 3 | CS | input | Current sense input to PWM and overcurrent comparators; includes internal 100ns leading edge blanking to reject switching transients. |
| 4 | RC | input | Oscillator timing pin with external R-C network for programming switching frequency up to 1MHz and maximum duty cycle 100%. |
| 5 | GND | power_in | Signal reference ground and power ground for all device functions and internal circuits. |
| 6 | OUT | output | High-current gate driver output capable of ±1A peak current for power MOSFET control; actively held low during UVLO condition. |
| 7 | VCC | power_in | Bias power supply input with internal regulation to 13.5V; absolute maximum rating 12V requires series limiting resistor from higher voltage sources. |
| 8 | REF | power_out | Precision 5V voltage reference output (1.5% accuracy at 25°C) providing bias and reference for error amplifier and internal logic circuits; 5mA maximum output current rating. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
## CAD (KiCad official)
- Symbol: `UCC3813D-0`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `ucc3813d-0-etched.step` / `ucc3813d-0-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ucc3813d-0.step` / `ucc3813d-0.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/ucc3813-0) (53 pp, sha256 `e691a7fcf4f2163a`, retrieved 2026-10-07, 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](docs/ucc3813d-0-datasheet.pdf)