component
UCC21750DWR
Public Made by Adomby adom
Texas Instruments Isolators - Gate Drivers, SOIC-16-300mil. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownUCC21750DWR
Texas Instruments · Isolators - Gate Drivers · SOIC-16-300mil
UCC21750DWR from Texas Instruments, in a SOIC-16-300mil. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | AIN | input | Isolated analog sensing input with voltage range 0.6 V to 4.5 V; parallelize small capacitor to COM for noise immunity; tie to COM if unused. |
| 2 | DESAT | input | Desaturation protection input referenced to COM with detection threshold 8.5 V to 9.8 V; tie to COM if unused. |
| 3 | COM | power_in | Common ground reference for output side, connected to emitter of IGBT or source of SiC-MOSFET. |
| 4 | OUTH | output | Gate driver output pullup with peak source current ±10 A and high-level output voltage 17.5 V at IOUT = -0.2 A. |
| 5 | VDD | power_in | Positive gate drive supply rail with operating range 13 V to 33 V; bypass with >10-μF capacitor to COM. |
| 6 | OUTL | output | Gate driver output pulldown with peak sink current ±10 A and low-level output voltage 60 mV at IOUT = 0.2 A. |
| 7 | CLMPI | input | Internal active miller clamp input connected directly to power transistor gate; threshold voltage 1.5 V to 2.5 V referenced to VEE; leave floating or tie to VEE if unused. |
| 8 | VEE | power_in | Negative gate drive supply rail with operating range -17.5 V to +0.3 V referenced to COM; bypass with >10-μF capacitor to COM. |
| 9 | GND | power_in | Input power supply and logic ground reference; bypass with >1-μF capacitor to VCC. |
| 10 | IN+ | input | Non-inverting gate driver control input with high threshold 1.85 V to 2.31 V (VCC = 3.3 V) and low threshold 0.99 V to 1.52 V; tie to VCC if unused. |
| 11 | IN- | input | Inverting gate driver control input with high threshold 1.85 V to 2.31 V (VCC = 3.3 V) and low threshold 0.99 V to 1.52 V; tie to GND if unused. |
| 12 | RDY | output | Power good output (open drain) indicating power supply status of VCC-GND and VDD-COM; pulled to GND during UVLO condition. |
| 13 | FLT | output | Active-low fault alarm output (open drain) signaling overcurrent or short circuit detection; pulled to GND on fault condition. |
| 14 | RST/EN | input | Reset and enable pin with dual function: (1) enable/shutdown of output by pulling low >1000 ns, (2) reset DESAT fault by pulling low >1000 ns after fault mute time; internally pulled down 50 kΩ. |
| 15 | VCC | power_in | Input power supply with operating range 3.0 V to 5.5 V; bypass with >1-μF capacitor to GND. |
| 16 | APWM | output | Isolated analog PWM output with frequency 380 kHz to 420 kHz; duty cycle 7.5% to 88.5% for AIN voltage 4.5 V to 0.6 V respectively; leave floating if unused. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-16-300mil |
| Category | Power Management (PMIC) |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
UCC21750DWR - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOIC-16-300mil (KiCad packages3D, STEP)
- 3D model files:
ucc21750dwr-etched.step/ucc21750dwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ucc21750dwr.step/ucc21750dwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (53 pp, sha256
3c71f631cf74e352, retrieved 2026-09-22, 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 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(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).