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UCC3808APWTR-2

Public Made by Adom

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Texas Instruments AC-DC Controllers And Regulators, TSSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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UCC3808APWTR-2

Texas Instruments · AC-DC Controllers And Regulators · TSSOP-8

UCC3808APWTR-2 from Texas Instruments, in a TSSOP-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 OUTA output Alternating high-current output stage providing 500mA peak pull current and 1A peak sink current for power MOSFET gate drive; switches at half oscillator frequency with 60-200ns dead time between outputs and low-impedance overshoot/undershoot clamping.
2 VDD power_in Power supply input; bypass to GND with 1µF decoupling ceramic capacitor placed close to package plus electrolytic storage capacitor; operating range 5-14V for UCC3808A-2.
3 COMP output Error amplifier output and PWM comparator input; 2MHz bandwidth operational amplifier with low output impedance capable of sourcing and sinking current; includes internal current limiting and full-cycle soft-start via voltage clamping.
4 FB input Error amplifier non-inverting input; maintain minimal lead length and stray capacitance for optimal stability and noise immunity.
5 CS input Current sense input for peak current and overcurrent comparator with 1.9-2.5V/V gain; internal MOSFET discharges external filter capacitor during oscillator dead time; 0.7-0.8V overcurrent threshold triggers soft-start cycle.
6 RC output Oscillator frequency programming pin generating sawtooth output; connect external timing resistor (10kΩ-200kΩ recommended) from VDD and timing capacitor (100pF-1000pF recommended) to GND; frequency ≈ 1.41/(√RC).
7 GND power_in Reference and power ground for all functions; use low-impedance PCB ground plane due to high current and high frequency operation of this device.
8 OUTB output Alternating high-current output stage providing 500mA peak pull current and 1A peak sink current for power MOSFET gate drive; switches at half oscillator frequency with 60-200ns dead time between outputs and low-impedance overshoot/undershoot clamping.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package TSSOP-8
Category Power Management (PMIC)
Pins 8

CAD (KiCad official)

  • Symbol: UCC3808APWTR-2
  • Footprint: Package_SO:TSSOP-8_3x3mm_P0.65mm
  • 3D model: TSSOP-8 (KiCad packages3D, STEP)
  • 3D model files: ucc3808apwtr-2-etched.step / ucc3808apwtr-2-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ucc3808apwtr-2.step / ucc3808apwtr-2.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (27 pp, sha256 a8e88286e9a900bf, retrieved 2026-10-07, 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