component
UCC2808ADTR-1
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
markdownUCC2808ADTR-1
Texas Instruments · AC-DC Controllers And Regulators · SOIC-8
UCC2808ADTR-1 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 | COMP is the error amplifier output and PWM comparator input, can source and sink current with internal current limiting, and can be pulled to GND to force zero duty cycle; the series has full-cycle soft start implemented by clamping the maximum COMP voltage. |
| 2 | FB | input | FB is the inverting input of the error amplifier, and its trace length and stray capacitance should be kept as short and small as possible for best stability. |
| 3 | CS | input | CS is the PWM input and peak-current/overcurrent comparator input, where exceeding the overcurrent threshold (0.7 V to 0.8 V, 0.75 V typical) causes a soft-start cycle and an internal MOSFET discharges the current-sense filter capacitor. |
| 4 | RC | output | RC is the oscillator programming pin, set by a timing resistor from VDD (recommended 10 kΩ to 200 kΩ, avoid below 10 kΩ) and a timing capacitor to GND (recommended 100 pF to 1000 pF), with approximate frequency = 1.41 / RC. |
| 5 | GND | power_in | GND is the reference and power ground for all functions, and a low-impedance ground plane is strongly recommended because of the high current and high frequency operation. |
| 6 | OUTB | output | OUTB is an alternating high-current gate driver output, capable of 500 mA peak source and 1 A peak sink, switching at half the oscillator frequency in push-pull operation with dead time typically 60 ns to 200 ns. |
| 7 | OUTA | output | OUTA is an alternating high-current gate driver output, capable of 500 mA peak source and 1 A peak sink, switching at half the oscillator frequency in push-pull operation with dead time typically 60 ns to 200 ns. |
| 8 | VDD | power_in | VDD is the device supply input with recommended operating range of 13 V to 14 V for UCCx808A-1 and 5 V to 14 V for UCCx808A-2 (absolute maximum 15 V), and 1 µF decoupling to GND is recommended close to the pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
UCC2808ADTR-1 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
ucc2808adtr-1-etched.step/ucc2808adtr-1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ucc2808adtr-1.step/ucc2808adtr-1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (27 pp, sha256
a8e88286e9a900bf, retrieved 2026-10-11, 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-5-5(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).