SLUSFA7 July 2025 UCC57142 , UCC57148
PRODUCTION DATA
The UCC5714x device is a single-channel, high-speed, gate driver capable of effectively driving MOSFET, SiC and IGBT power switches with 3A source and 3A sink (symmetrical drive) peak current. The driver has a good transient handling capability on its output, as well as rail-to-rail drive capability and small propagation delay, typically 26ns. The device has the over current detection and fault reporting function to the low voltage side DSP/MCU. When the over current signal is detected on the OCP pin, the internal circuit will pull down the EN/FLT pin to report fault and force the OUT to low stage.
The input threshold of UCC5714x is compatible to TTL low-voltage logic, which is fixed and independent of VDD supply voltage. The driver can also work with CMOS based controllers as long as the threshold requirement is met. The 1-V typical hysteresis offers noise immunity.
External pull up circuit on the EN/FLT is required during the normal operation of the driver. Pulling the EN/FLT low will disable the driver. The EN/FLT also report the undervoltage lockout (UVLO) fault on VDD and the over temperature fault.