Overview
The UCC21732-Q1 is a galvanic isolated single-channel gate driver designed by Texas Instruments for driving SiC MOSFETs and IGBTs up to 2121V DC operating voltage. This device is AEC-Q100 qualified for automotive applications and features advanced protection mechanisms, best-in-class dynamic performance, and robustness. It is particularly suited for high-voltage and high-current applications, offering up to ±10A peak source and sink current.
Key Specifications
| Parameter | Value |
|---|---|
| Isolation Voltage | 5.7 kVRMS |
| Drive Current | ±10A peak source and sink current |
| Output Drive Voltage | 33V maximum (VDD-VEE) |
| Operating Temperature | –40°C to +125°C ambient |
| Common Mode Transient Immunity (CMTI) | >150V/ns |
| Response Time for Fast Overcurrent Protection | 270ns |
| Isolation Technology | SiO2 capacitive isolation |
| Package | SOIC-16 DW |
| ESD Classification | HBM ESD level 3A, CDM ESD level C3 |
| Safety Certifications | 8000VPK VIOTM and 2121VPK VIORM Reinforced Isolation per DIN EN IEC 60747-17, 5700VRMS isolation for 1 minute per UL1577 |
Key Features
- Advanced protection features including fast overcurrent and short circuit detection, shunt current sensing support, and fault reporting.
- Active miller clamp and input/output side power supply UVLO to optimize SiC and IGBT switching behavior.
- Isolated analog to PWM sensor for temperature or voltage sensing.
- External active miller clamp and internal 2-level turn-off when fault occurs.
- Alarm FLT on overcurrent and reset from RST/EN with fast enable/disable response.
- Reject <40ns noise transient and pulse on input pins.
- 12V VDD UVLO with power good on RDY.
Applications
- Traction inverter for Electric Vehicles (EVs).
- On-board charger and charging pile.
- DC/DC Converter for Hybrid Electric Vehicles (HEVs) and EVs.
Q & A
- What is the UCC21732-Q1 used for? The UCC21732-Q1 is used as a galvanic isolated single-channel gate driver for SiC MOSFETs and IGBTs in high-voltage applications.
- What are the key protection features of the UCC21732-Q1? The device includes fast overcurrent and short circuit detection, shunt current sensing support, fault reporting, and active miller clamp.
- What is the operating temperature range of the UCC21732-Q1? The operating temperature range is –40°C to +125°C ambient.
- What is the maximum drive current of the UCC21732-Q1? The maximum drive current is ±10A peak source and sink current.
- What safety certifications does the UCC21732-Q1 have? It has 8000VPK VIOTM and 2121VPK VIORM Reinforced Isolation per DIN EN IEC 60747-17, and 5700VRMS isolation for 1 minute per UL1577.
- What is the isolation technology used in the UCC21732-Q1? The device uses SiO2 capacitive isolation technology.
- What are some common applications of the UCC21732-Q1? Common applications include traction inverters for EVs, on-board chargers, and DC/DC converters for HEVs and EVs.
- Does the UCC21732-Q1 support temperature sensing? Yes, it includes an isolated analog to PWM sensor for easier temperature or voltage sensing.
- How does the UCC21732-Q1 handle noise transients? The device can reject <40ns noise transient and pulse on input pins.
- What is the package type of the UCC21732-Q1? The package type is SOIC-16 DW.
