Texas Instruments UCC218302-Q1 Single-Channel Gate Driver
Texas Instruments UCC218302-Q1 Single-Channel Gate Driver is a galvanically isolated single-channel gate driver with advanced protection features, best-in-class dynamic performance, and robustness designed for IGBTs and SiC MOSFETs up to 1500VDC operating voltage. The UCC218302-Q1 has dual outputs up to ±10A and ±5A peak source and sink current.
The input side is isolated from the output side with SiO2 isolation technology. This supports up to 1.06kVRMS working voltage and 10kVPK surge immunity. The isolation barrier also provides low part-to-part skew, and >500V/ns common-mode noise immunity (CMTI).
The Texas Instruments UCC218302-Q1 includes state-of-the-art protection features such as fast overcurrent and short-circuit detection, fault reporting, controlled soft shutdown after a fault, active Miller clamp, input and output side power supply UVLO to optimize IGBT and SiC switching behavior and robustness, active short circuit input on the secondary side, and output voltage gate monitoring.
Features
- 5kVRMS single-channel isolated gate driver
- AEC-Q100 qualified for automotive applications
- AEC-Q100 qualified with a device temperature grade 1 (-40°C to +125°C ambient operating temperature)
- Optimized for SiC MOSFETs and IGBTs switching up to 1500Vpk
- 30V maximum output drive voltage (VDD-VEE)
- Dual split outputs with on-the-fly drive strength selection
- ±10A and ±5A drive current outputs
- Digital input GD_SEL selects drive strength
- 500V/ns minimum CMTI
- 200ns response time, fast DESAT protection with 9V threshold
- 4A internal active Miller clamp
- Dedicated Soft Shut Down (SSD) pin with 2.5A sinking capability, with shut down current that is controllable by an external resistor
- Overcurrent reporting on /FLT and reset from /RST/EN
- Fast enable and disable response on RST/EN
- 12V VDD UVLO with power good on RDY
- Overtemperature protection indicated on RDY
- Output voltage gate monitor with real-time output state feedback on OUT_FB
- An active short circuit (ASC) input on the secondary side to turn on the power switch during a system fault
- Wide body package with creepage and clearance > 8mm
Applications
- Traction inverter for EVs
- On-board charger and charging pile
- DC-DC converter for HEV/EVs
Functional Block Diagram
