Overview
The UCC21732DW 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 features advanced protection mechanisms, best-in-class dynamic performance, and robustness. It includes state-of-the-art protection features such as fast overcurrent and short circuit detection, shunt current sensing support, fault reporting, and active Miller clamp. The UCC21732DW also incorporates input and output side power supply UVLO to optimize the switching behavior of SiC and IGBT devices.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Package | SOIC (DW), 16 pins | 10.3mm × 7.5mm |
| Operating Temperature Range | –40°C to 125°C | |
| Junction Temperature Range | –40°C to 150°C | |
| Maximum Output Drive Voltage (VDD-VEE) | 33V | |
| Drive Strength | ±10A peak source and sink current | |
| Common Mode Noise Immunity (CMTI) | >150V/ns | |
| Response Time for Fast Overcurrent Protection | 270ns | |
| Isolation Voltage | 5700VRMS for 1 minute per UL1577 | |
| Creepage and Clearance Distance | > 8mm | |
| Safety Certifications | 8000VPK VIOTM and 2121VPK VIORM per DIN EN IEC 60747-17 |
Key Features
- 5.7kVRMS single-channel isolated gate driver
- Support for SiC MOSFETs and IGBTs up to 2121Vpk
- 33V maximum output drive voltage (VDD-VEE)
- ±10A drive strength and split output
- Fast overcurrent and short circuit detection
- Shunt current sensing support and fault reporting
- Active Miller clamp and input/output side power supply UVLO
- Isolated analog to PWM sensor for temperature or voltage sensing
- High voltage DC-Link or phase voltage sensing
- Alarm FLT on overcurrent and reset from RST/EN
- Fast enable/disable response on RST/EN
- Reject <40ns noise transient and pulse on input pins
- Inputs/outputs with over/under-shoot transient voltage immunity up to 5V
Applications
- Industrial motor drives
- Server, telecom, and industrial power supplies
- Uninterruptible power supplies (UPS)
- Solar inverters
Q & A
- What is the maximum operating voltage for the UCC21732DW?
The UCC21732DW supports SiC MOSFETs and IGBTs up to 2121V DC operating voltage.
- What is the drive strength of the UCC21732DW?
The UCC21732DW has up to ±10A peak source and sink current.
- What are the key protection features of the UCC21732DW?
The device includes fast overcurrent and short circuit detection, shunt current sensing support, fault reporting, and active Miller clamp.
- What is the isolation voltage rating of the UCC21732DW?
The UCC21732DW has a 5700VRMS isolation voltage rating for 1 minute per UL1577 and 8000VPK VIOTM and 2121VPK VIORM per DIN EN IEC 60747-17.
- What is the common mode noise immunity (CMTI) of the UCC21732DW?
The device has a CMTI of >150V/ns.
- What are the typical applications of the UCC21732DW?
The UCC21732DW is used in industrial motor drives, server and telecom power supplies, uninterruptible power supplies (UPS), and solar inverters.
- How does the UCC21732DW handle temperature sensing?
The device includes an isolated analog to PWM sensor that can be used for easier temperature or voltage sensing.
- What is the operating temperature range of the UCC21732DW?
The operating temperature range is –40°C to 125°C, and the junction temperature range is –40°C to 150°C.
- What are the safety certifications for the UCC21732DW?
The device is certified with 8000VPK VIOTM and 2121VPK VIORM per DIN EN IEC 60747-17 and 5700VRMS isolation for 1 minute per UL1577.
- How does the UCC21732DW handle noise transients?
The device can reject <40ns noise transient and pulse on input pins and has inputs/outputs with over/under-shoot transient voltage immunity up to 5V).
- What is the package type and size of the UCC21732DW?
The UCC21732DW comes in a SOIC (DW) package with 16 pins, measuring 10.3mm × 7.5mm).
