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Contents

README

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UCC28089D

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

UCC28089D 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 SYNC output Oscillator-synchronization output that is logic high (VDD) during the oscillator discharge time and logic low (GND) at other times, and is active only while OUTA and OUTB are active; it is held low during under-voltage lockout and over-current shutdown.
2 DIS input Separate oscillator timing-capacitor discharge pin that lets the dead time be programmed externally; the analog input range is -0.3 V to VDD + 0.3 V and not to exceed 5 V.
3 CT input Oscillator timing-capacitor connection, with a recommended timing capacitor range of 100 pF to 100,000 pF.
4 CS input Current-sense input where an over-current shutdown is triggered when the voltage rises above 0.75 V (electrical table gives a 0.650 V to 0.800 V shutdown threshold, 0.725 V typical).
5 GND power_in Ground pin to which analog and digital signals are referenced and through which the output drivers return current.
6 OUTB output Driver output capable of sinking 1 A and sourcing 0.5 A (absolute maximum peak currents), alternating with OUTA.
7 OUTA output Driver output capable of sinking 1 A and sourcing 0.5 A (absolute maximum peak currents), alternating with OUTB.
8 VDD power_in Power input for the device, with recommended supply range of 8.5 V to 14 V (IDD < 10 mA) and an absolute maximum of 15 V.

Key specifications

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

CAD (KiCad official)

  • Symbol: UCC28089D
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: ucc28089d-etched.step / ucc28089d-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ucc28089d.step / ucc28089d.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (25 pp, sha256 71f6c2673094f233, retrieved 2026-10-11, tier: lcsc)
  • 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