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Ray Publish 0.1.0 5fb5b32 29d ago

UCC28700QDBVRQ1

Texas Instruments · AC-DC Controllers And Regulators · SOT-23-6

UCC28700QDBVRQ1 from Texas Instruments, in a SOT-23-6. 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 CBC input Cable Compensation pin is programmed with a resistor to GND to set the cable voltage-drop compensation, with the CBC pin spanning 0 V to 3 V across 0 to IOCC output current.
2 VDD power_in VDD is the bias supply input to the controller and requires a carefully placed bypass capacitor to GND, with a recommended bias supply operating voltage of 9 V to 35 V.
3 DRV output Drive output used to drive the gate of an external high-voltage MOSFET switching transistor, with gate-drive voltage limited to 14 V.
4 CS input Current Sense input connects to a ground-referenced current-sense resistor in series with the power switch to monitor and control peak primary current, with a normal operating range of 0.75 V to 0.25 V and a 1.5 V fault threshold.
5 GND power_in Ground pin is both the reference for the controller and the low-side return for the drive output, and all AC decoupling capacitors should return as close as possible to this pin.
6 VS power_in Voltage Sense input receives feedback from a voltage divider between an auxiliary winding and GND for voltage and timing feedback, with a peak VS pin current limit of −1.2 mA in the absolute maximum ratings.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-23-6
Category Power Management (PMIC)
Pins 6

CAD (KiCad official)

  • Symbol: UCC28700QDBVRQ1
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-23-6 (KiCad packages3D, STEP)
  • 3D model files: ucc28700qdbvrq1-etched.step / ucc28700qdbvrq1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ucc28700qdbvrq1.step / ucc28700qdbvrq1.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (40 pp, sha256 6f5a94969d3d4d3a, retrieved 2026-10-10, 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