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UCC21220DR

Public Made by Adom

by adom

Texas Instruments Isolators - Gate Drivers, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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UCC21220DR

Texas Instruments · Isolators - Gate Drivers · SOIC-16

UCC21220DR from Texas Instruments, in a SOIC-16. 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 INA input TTL/CMOS compatible input signal for A channel driver; pulled low internally if left open.
2 INB input TTL/CMOS compatible input signal for B channel driver; pulled low internally if left open.
3 VCCI power_in Primary-side supply voltage; requires local low ESR/ESL capacitor decoupling to GND.
4 GND power_in Primary-side ground reference for all primary-side signals.
5 DIS input Disable pin for both driver outputs; asserted high disables, low enables; pulled high internally if left open.
6 NC unconnected No internal connection.
7 NC unconnected No internal connection.
8 VCCI power_in Primary-side supply voltage internally shorted to pin 3; requires low ESR/ESL capacitor decoupling to GND.
9 VSSB power_in Ground for secondary-side driver B; ground reference for secondary side B channel.
10 OUTB output Output of driver B; connect to gate of B channel FET or IGBT.
11 VDDB power_in Secondary-side power for driver B; requires local low ESR/ESL capacitor decoupling to VSSB.
12 NC unconnected No internal connection.
13 NC unconnected No internal connection.
14 VSSA power_in Ground for secondary-side driver A; ground reference for secondary side A channel.
15 OUTA output Output of driver A; connect to gate of A channel FET or IGBT.
16 VDDA power_in Secondary-side power for driver A; requires local low ESR/ESL capacitor decoupling to VSSA.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-16
Category Power Management (PMIC)
Pins 16

CAD (KiCad official)

  • Symbol: UCC21220DR
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOIC-16 (KiCad packages3D, STEP)
  • 3D model files: ucc21220dr-etched.step / ucc21220dr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ucc21220dr.step / ucc21220dr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (45 pp, sha256 71440c65170dc667, retrieved 2026-10-07, tier: manufacturer)
  • 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