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Data Sheet
UCC5881-Q1 Isolated 20A Adjustable Gate Drive
IGBT/SiC MOSFET Gate Driver With Advanced Protection Features For
Automotive Applications
1 Features
- Dual-output driver with real time
variable drive strength
- ±15A and ±5A drive
current outputs
- Digital input pins (GD*) for drive strength
adjustment without SPI
- 3 resistor settings R1,
R2, or R1||R2
- Integrated 4A active
Miller clamp or optional external drive for Miller clamp transistor
- Primary-side and secondary-side
active short circuit (ASC) support
- Under-voltage and over-voltage
protection on internal and external supplies
- Driver die temperature sensing
and over temperature protection
- Short-circuit protection:
- 110ns response time to
DESAT event
- DESAT protection –
selections up to 14V
- Shunt resistor based
short-circuit (SC) and over-current (OC) protection
- Configurable protection
threshold values and blanking times
- Programmable soft
turn-off (STO) and two-level soft turn-off (2STO) current
- Integrated 10-bit ADC
- Able to measure power
switch temperature, DC Link voltage, driver die temperature, DESAT pin
voltage, VCC2 voltage
- Programmable digital
comparators
- Advanced VCE/VDS clamping
circuit
- Functional Safety-Compliant
- Integrated diagnostics:
- Built in self-test (BIST)
for protection comparators
- Gate threshold voltage measurement for power device
health monitoring
- INP to transistor gate
path integrity
- Internal clock
monitoring
- Fault alarm and warning
outputs (nFLT*)
- ISO communication data
integrity check
- SPI based device reconfiguration,
verification, supervision, and diagnosis
- 150V/ns CMTI
- AEC-Q100 qualified with the
following results:
- Device temperature grade
1: -40°C to +125°C ambient operating temperature
- Device HBM ESD
classification level 2
- Device CDM ESD
classification level C2b
2 Applications
- EV and HEV traction inverter
- EV and HEV power modules
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