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Texas Instruments UCC21755-Q1 Automotive Gate Driver

Texas Instruments UCC21755-Q1 Automotive Gate Driver is designed for SiC MOSFETs and IGBTs up to 2121V_pk. The UCC21755-Q1 offers advanced protection features, best-in-class dynamic performance, and robustness.

The TI UCC21755-Q1 automotive gate driver has up to ±10A peak source and sink current. The input side is isolated from the output side with SiO2 capacitive isolation technology, supporting up to 1.5kV_RMS working voltage, 12.8kV_PK surge immunity with longer than 40-years isolation barrier life, low part-to-part skew, and >150V/ns common mode noise immunity (CMTI).

The UCC21755-Q1 includes state-of-art protection features, including fast overcurrent and short circuit detection, shunt current sensing support, fault reporting, active Miller clamp, and input and output side power supply UVLO to optimize SiC and IGBT switching behavior.

The isolated analog to PWM sensor can be utilized for more manageable temperature or voltage sensing. These features additionally increase the drivers’ versatility and simplify the system design effort, size, and cost.

Features

5.7kV_RMS single-channel isolated gate driver
AEC-Q100 Qualified with the following results:
- Device temperature grade 0: -40°C to +150°C ambient operating temperature range
- Device HBM ESD classification level 3A
- Device CDM ESD classification level C6
Functional Safety Quality-Managed
- Documentation available to aid functional safety system design
SiC MOSFETs and IGBTs up to 2121V_pk
4A internal active Miller clamp
400mA soft turn-off when fault happens
Isolated analog sensor with PWM output for
- Temperature sensing with NTC, PTC, or thermal diode
- High voltage DC-link or phase voltage

33V maximum output drive voltage (VDD-VEE)
200ns response time fast DESAT protection with 5V threshold
±10A drive strength and split output
150V/ns minimum CMTI
Alarm FLT on overcurrent and reset from RST/EN
Fast enable/disable response on RST/EN
Reject <40ns noise transient and pulse on input pins
12V VDD UVLO with power good on RDY
Inputs/outputs with over- or under-shoot transient voltage immunity up to 5V
130ns (maximum) propagation delay and 30ns (maximum) pulse/part skew
SOIC-16 DW package with >8mm creepage and clearance distance
Operating junction temperature from –40°C to +150°C

Applications

Traction inverter for EVs
On-board charger and charging pile
DC/DC converter for HEV/EVs

Texas Instruments UCC21755-Q1 Automotive Gate Driver

Features

Applications

Pin Configuration

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