component

UCC2808ADTR-1

Public Made by Adom

by 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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UCC2808ADTR-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.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ucc2808adtr-1.step / ucc2808adtr-1.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 2026-10-11, 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, primary claude-haiku-5-5 (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