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 <40-ns noise transient and pulse on input pins
12-V VDD UVLO with power good on RDY
VDD UVLO 12 V
Inputs/outputs with over/under-shoot transient voltage Immunity up to 5 V
130-ns (maximum) propagation delay and 30-ns (maximum) pulse/part skew
SOIC-16 DW package with creepage and clearance distance > 8 mm
Operating junction temperature –40°C to 150°C
Description for the UCC21732
The UCC21732 is a galvanic isolated single channel gate driver designed for SiC MOSFETs and IGBTs up to 2121-V DC operating voltage with advanced protection features, best-in-class dynamic performance and robustness. UCC21732 has up to ±10-A peak source and sink current.
The input side is isolated from the output side with SiO2 capacitive isolation technology, supporting up to 1.5-kVRMS working voltage, 12.8-kVPK 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 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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