STMicroelectronics STDRIVEG611→STDRIVEG611QTR
High voltage and high-speed half-bridge gate driver for GaN power switches
The STDRIVEG611 is a high-voltage half-bridge gate driver for N‑channel Enhancement Mode GaN.
The high-side driver section is designed to stand a voltage rail up to 600 V and can be easily supplied by the integrated bootstrap diode.
High current capability, short propagation delay with excellent delay matching, and integrated LDOs make the STDRIVEG611 optimized for driving high-speed GaN.
The STDRIVEG611 features supply UVLOs tailored to hard switching applications, interlocking to avoid cross-conduction conditions and an overcurrent comparator with SmartSD.
The input pins extended range allows easy interfacing with controllers. A standby pin allows to reduce the power consumption during inactive periods or burst mode.
The STDRIVEG611 operates in the industrial temperature range, -40 °C to 125 °C.
The device is available in a compact QFN 4x5x1 mm package with 0.5 mm pitch.
Key features
- High voltage rail up to 600 V
- dV/dt transient immunity ±200 V/ns
- Driver with separated sink and source path for optimal driving
- 2.4 A and 1.2 Ω sink
- 1.0 A and 3.7 Ω source
- High-side and low-side linear regulators for 6 V gate driving voltage
- Fast high-side startup time: 5 µs
- 45 ns propagation delay, 15 ns minimum output pulse
- High switching frequency (> 1 MHz)
- Embedded 600 V bootstrap diode
- Full support of GaN hard-switching operation
- Comparator for overcurrent detection with Smart Shutdown
- UVLO function on VCC, VHS, and VLS
- Separated logic inputs and shutdown pin
- Fault pin for overcurrent, overtemperature and UVLO reporting
- Stand-by function for low consumption mode
- Separated PGND for Kelvin source driving and current shunt compatibility
- 3.3 V to 20 V compatible inputs with hysteresis and pull-down
Applications
- Motor driver for home appliances, pumps, and compressors
- Factory automation, servo, and industrial drives
- E-bikes and power tools
- Class D audio amplifiers
- DC/DC and resonant converters, PFC, battery charger and adapters
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