UCC5871-Q1 30-A Isolated IGBT/SiC MOSFET Gate Driver with Advanced Protection Features for Automotive Applications

1 Features

Split output driver provides 30-A peak source and 30-A peak sink currents
Interlock and shoot-through protection with 150-ns(max) propagation delay and programmable minimum pulse rejection
Primary and secondary side active short circuit (ASC) support
Configurable power transistor protections
- DESAT based short circuit protection
- Shunt resistor based overcurrent and short circuit protection
- NTC based overtemperature protection
- Programmable soft turnoff (STO) and two-level turnoff (2LTOFF) during power transistor faults
Functional Safety-Compliant
- Developed for functional safety applications
- Documentation available to aid ISO 26262 system design up to ASIL D
Integrated diagnostics:
- Built-in self test (BIST) for protection comparators
- IN+ to transistor gate path integrity
- Power transistor threshold monitoring
- Internal clock monitoring
- Fault alarm (nFLT1) and warning (nFLT2) outputs
Integrated 4-A active Miller clamp or optional external drive for Miller clamp transistor
Advanced high voltage clamping control
Internal and external supply undervoltage and overvoltage protection
Active output pulldown and default low outputs with low supply or floating inputs
Driver die temperature sensing and overtemperature protection
100-kV/µs minimum common mode transient immunity (CMTI) at V_CM = 1000 V
SPI based device reconfiguration, verification, supervision, and diagnosis
Integrated 10-bit ADC for power transistor temperature, voltage, and current monitoring