UCC21750 Single channel isolated gate driver for SiC/IGBT with advanced protection and high-CMTI

Sample availability and more information

Preproduction samples are available (PUCC21750DW). Request now

Full data sheet, EVM user's guide, and PSpice model are available. Request now

Description

The UCC21750 is a galvanic isolated single channel gate drivers designed for up to 1700V SiC MOSFETs and IGBTs with advanced protection features, best-in-class dynamic performance and robustness. UCC21750 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-kV_RMS working voltage, 12.8-kV_PK 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 UCC21750 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.

Features

Single channel SiC/IGBT isolated gate driver
SiC MOSFETs and IGBTs up to 1700 V
33-V maximum output drive voltage (VDD-COM)
Split outputs with ±10-A peak drive current
150-V/ns min. CMTI
DESAT – monitor V_CE, V_DS while PWM is ON
- Response time: 200ns
Active miller clamp
- 4-A internal active miller clamp
Soft turn-off when fault happen
- Soft turn-off 400 mA
Isolated analog sensor with PWM output for
- Temperature sense with NTC 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 noise transient and pulse on input pins
UVLO with power good on RDY
- VDD UVLO 12 V
Inputs/outputs with over/under-shoot immunity
Small propagation delay and pulse/part skew
Operating temperature range –40°C to 125°C
Safety-related certifications (planned):
- 8000-V_PK V_IOTM and 2121-V_PK V_IORM Reinforced Isolation per DIN V VDE V 0884-11 (VDE V 0884-11): 2017-01
- 5700-V_RMS Isolation for 1 Minute per UL1577

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Part number	Order	Isolation rating (Vrms)	DIN V VDE V 0884-10 transient overvoltage rating (Vpk)	DIN V VDE V 0884-10 working voltage (Vpk)	Number of channels (#)	Power switch	Output VCC/VDD (Max) (V)	Output VCC/VDD (Min) (V)	Input VCC (Min) (V)	Input VCC (Max) (V)	Peak output current (A)	Prop delay (ns)	Operating temperature range (C)	Package Group
UCC21750	Order now	5700	8400	2121	1	IGBT SiCFET	33	13	3	5.5	10	90	-40 to 125	SOIC \| 16
ISO5451	Order now	5700	8000	1420	1	IGBT	30	15	3	5.5	5	76	-40 to 125	SOIC \| 16
ISO5452	Order now	5700	8000	1420	1	IGBT SiCFET	30	15	2.25	5.5	5	76	-40 to 125	SOIC \| 16
ISO5851	Order now	5700	8000	2121	1	IGBT	30	15	3	5.5	5	76	-40 to 125	SOIC \| 16
ISO5852S	Order now	5700	8000	2121	1	IGBT SiCFET	30	15	2.25	5.5	5	76	-40 to 125	SOIC \| 16