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UCC21732-Q1

ACTIVE

Automotive 5.7-kVrms ±10A single-channel isolated gate driver with 2-level turn off for IGBT/SiCFETs

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Data sheet

UCC21732-Q1

ACTIVE
Data sheet Order now

Product details

Number of channels 1 Isolation rating Reinforced Power switch IGBT, SiCFET Withstand isolation voltage (VISO) (Vrms) 5700 Working isolation voltage (VIOWM) (Vrms) 1500 Transient isolation voltage (VIOTM) (VPK) 8000, 8400 Peak output current (A) 10 Peak output current (source) (typ) (A) 10 Peak output current (sink) (typ) (A) 10 Features Active miller clamp, Fault reporting, Integrated analog to PWM sensor, Over Current Protection, Power good, Short circuit protection, Soft turn-off, Two-level turn-off Output VCC/VDD (min) (V) 13 Output VCC/VDD (max) (V) 33 Input supply voltage (min) (V) 3 Input supply voltage (max) (V) 5.5 Propagation delay time (µs) 0.09 Input threshold CMOS Operating temperature range (°C) -40 to 125 Rating Automotive Bootstrap supply voltage (max) (V) 2121 Rise time (ns) 28 Fall time (ns) 24 Undervoltage lockout (typ) (V) 12 TI functional safety category Functional Safety Quality-Managed
Number of channels 1 Isolation rating Reinforced Power switch IGBT, SiCFET Withstand isolation voltage (VISO) (Vrms) 5700 Working isolation voltage (VIOWM) (Vrms) 1500 Transient isolation voltage (VIOTM) (VPK) 8000, 8400 Peak output current (A) 10 Peak output current (source) (typ) (A) 10 Peak output current (sink) (typ) (A) 10 Features Active miller clamp, Fault reporting, Integrated analog to PWM sensor, Over Current Protection, Power good, Short circuit protection, Soft turn-off, Two-level turn-off Output VCC/VDD (min) (V) 13 Output VCC/VDD (max) (V) 33 Input supply voltage (min) (V) 3 Input supply voltage (max) (V) 5.5 Propagation delay time (µs) 0.09 Input threshold CMOS Operating temperature range (°C) -40 to 125 Rating Automotive Bootstrap supply voltage (max) (V) 2121 Rise time (ns) 28 Fall time (ns) 24 Undervoltage lockout (typ) (V) 12 TI functional safety category Functional Safety Quality-Managed
SOIC (DW) 16 106.09 mm² (10.3 mm × 10.3 mm)
  • 5.7kVRMS single channel isolated gate driver
  • AEC-Q100 qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
    • Device HBM ESD classification level 3A
    • Device CDM ESD classification level C3
  • SiC MOSFETs and IGBTs up to 2121Vpk
  • 33V maximum output drive voltage (VDD-VEE)
  • ±10A drive strength and split output
  • 150V/ns minimum CMTI
  • 270ns response time fast overcurrent protection
  • External active miller clamp
  • Internal 2-level turn-off when fault happens
  • Isolated analog sensor with PWM output for
    • Temperature sensing with NTC, PTC or thermal diode
    • High voltage DC-Link or phase voltage
  • Alarm FLT on over current and reset from RST/EN
  • Fast enable/disable response on RST/EN
  • Reject <40ns noise transient and pulse on input pins
  • 12V VDD UVLO with power good on RDY
  • Inputs/outputs with over/under-shoot transient voltage Immunity up to 5V
  • 130ns (maximum) propagation delay and 30ns (maximum) pulse/part skew
  • SOIC-16 DW package with creepage and clearance distance > 8mm
  • Operating junction temperature –40°C to 150°C
  • Safety-related certifications:
    • 8000VPK VIOTM and 2121VPK VIORM Reinforced Isolation per DIN EN IEC 60747-17 (VDE 0884-17)
    • 5700VRMS isolation for 1 minute per UL1577
  • 5.7kVRMS single channel isolated gate driver
  • AEC-Q100 qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
    • Device HBM ESD classification level 3A
    • Device CDM ESD classification level C3
  • SiC MOSFETs and IGBTs up to 2121Vpk
  • 33V maximum output drive voltage (VDD-VEE)
  • ±10A drive strength and split output
  • 150V/ns minimum CMTI
  • 270ns response time fast overcurrent protection
  • External active miller clamp
  • Internal 2-level turn-off when fault happens
  • Isolated analog sensor with PWM output for
    • Temperature sensing with NTC, PTC or thermal diode
    • High voltage DC-Link or phase voltage
  • Alarm FLT on over current and reset from RST/EN
  • Fast enable/disable response on RST/EN
  • Reject <40ns noise transient and pulse on input pins
  • 12V VDD UVLO with power good on RDY
  • Inputs/outputs with over/under-shoot transient voltage Immunity up to 5V
  • 130ns (maximum) propagation delay and 30ns (maximum) pulse/part skew
  • SOIC-16 DW package with creepage and clearance distance > 8mm
  • Operating junction temperature –40°C to 150°C
  • Safety-related certifications:
    • 8000VPK VIOTM and 2121VPK VIORM Reinforced Isolation per DIN EN IEC 60747-17 (VDE 0884-17)
    • 5700VRMS isolation for 1 minute per UL1577

The UCC21732-Q1 is a galvanic isolated single channel gate driver designed for SiC MOSFETs and IGBTs up to 2121V DC operating voltage with advanced protection features, best-in-class dynamic performance and robustness. The UCC21732-Q1 has up to ±10A peak source and sink current.

The input side is isolated from the output side with SiO2 capacitive isolation technology, supporting up to 1.5kVRMS working voltage, 12.8kVPK surge immunity with longer than 40 years Isolation barrier life, as well as providing low part-to-part skew , >150V/ns common mode noise immunity (CMTI).

The UCC21732-Q1 includes the state-of-art protection features, such as fast overcurrent and short circuit detection, shunt current sensing support, fault reporting, active miller clamp, input and output side power supply UVLO to optimize SiC and IGBT switching behavior and robustness. The isolated analog to PWM sensor can be utilized for easier temperature or voltage sensing, further increasing the drivers’ versatility and simplifying the system design effort, size and cost.

The UCC21732-Q1 is a galvanic isolated single channel gate driver designed for SiC MOSFETs and IGBTs up to 2121V DC operating voltage with advanced protection features, best-in-class dynamic performance and robustness. The UCC21732-Q1 has up to ±10A peak source and sink current.

The input side is isolated from the output side with SiO2 capacitive isolation technology, supporting up to 1.5kVRMS working voltage, 12.8kVPK surge immunity with longer than 40 years Isolation barrier life, as well as providing low part-to-part skew , >150V/ns common mode noise immunity (CMTI).

The UCC21732-Q1 includes the state-of-art protection features, such as fast overcurrent and short circuit detection, shunt current sensing support, fault reporting, active miller clamp, input and output side power supply UVLO to optimize SiC and IGBT switching behavior and robustness. The isolated analog to PWM sensor can be utilized for easier temperature or voltage sensing, further increasing the drivers’ versatility and simplifying the system design effort, size and cost.
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Technical documentation

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* Data sheet UCC21732-Q1 Automotive 10A Source/Sink Reinforced Isolated Single Channel Gate Driver for SiC/IGBT with Active Protection, Isolated Analog Sensing and High-CMTI datasheet (Rev. C) PDF | HTML Jan 18, 2024
Certificate VDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. AB) Jul 15, 2026
EVM User's guide UCC2181xx, UCC217xx, and ISO5x5x Evaluation Module (Rev. A) PDF | HTML Jun 8, 2026
Application brief Does My Design Need a Miller Clamp? PDF | HTML Dec 11, 2024
Application note Choosing Appropriate Protection Approach for IGBT and SiC Power Modules PDF | HTML Jul 19, 2024
Application brief Understanding the Short Circuit Protection for Silicon Carbide MOSFETs (Rev. C) PDF | HTML Sep 8, 2023
Certificate UCC217xx/-Q1 CQC Certificate of Product Certification Jun 7, 2023
Application note HEV/EV Traction Inverter Design Guide Using Isolated IGBT and SiC Gate Drivers (Rev. B) PDF | HTML Oct 21, 2022
Application brief The Use and Benefits of Ferrite Beads in Gate Drive Circuits PDF | HTML Dec 16, 2021
E-book E-book: An engineer’s guide to industrial robot designs Feb 12, 2020
Application note Performance of the Analog PWM Channel in Smart Gate Drivers Jan 16, 2020
Design guide SiC/IGBT Isolated Gate Driver Reference Design With Thermal Diode and Sensing Dec 18, 2019
User guide UCC217xx Family Driving and Protecting SiC and IGBT Power Modules and Transistor (Rev. B) Sep 9, 2019
Technical article Eight questions about monitoring and protection in hybrid and electric vehicles PDF | HTML May 22, 2019
Application brief Why is high UVLO important for safe IGBT & SiC MOSFET power switch operation Jan 30, 2019

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

UCC21732QDWEVM-025 — Driving and protection evaluation board for SiC and IGBT transistors and power modules

The UCC21732QDWEVM-025 is a compact, single channel isolated gate driver board providing drive, bias voltages, protection and diagnostic needed for SiC MOSFET and Si IGBT Power Modules housed in 150 x 62 x 17 mm and 106 x 62 x 30 mm packages. This TI EVM is based on 5.7-kVrms reinforced isolation (...)

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Simulation model

UCC21732 PSpice Transient Model

SLUM663.ZIP (65 KB) - PSpice model
Supported products & hardware
Simulation model

UCC21732 Unencrypted PSPICE Transient Model

SLUM717.ZIP (6 KB) - PSpice model
Supported products & hardware
Calculation tool

SLUC695 — UCC217xx XL Calculator Tool

Calculator enable customer design in terms of switching frequency and OC/DESAT, STO timing
Supported products & hardware
Reference design

PMP23223 — Smart isolated gate driver with bias supply reference design

This reference design demonstrates the combination of UCC21732 gate driver with a UCC14xxx series bias supply. This design can be used to drive a variety of power switches, including connecting directly to a Wolfspeed Silicon Carbide (SiC) field-effect transistor (FET) module. This reference design (...)

Supported products & hardware
Reference design

TIDA-020030 — SiC/IGBT isolated gate driver reference design with thermal diode and sensing FET

This reference design is an IGBT or SiC isolated gate driver power stage driving a IGBT module with advanced protection features. The design consists of a single phase power stage from a traction inverter supporting high level of safety features. The IGBT module has integrated thermal diode for (...)
Supported products & hardware
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SOIC (DW) 16 Ultra Librarian
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