EVALSTGAP2SAC [STMicroelectronics]

The EVALSTGAP2SAC is an automotive grade isolated single gate driver.

The gate driver is characterized by 4 A current capability and rail-to-rail outputs, making the device suitable also for high power inverter applications such as motor drivers in industrial applications equipped with MOSFET / IGBT power switch.

The configuration featuring single output pin and Miller CLAMP function allows avoiding gate spikes during fast commutations in half-bridge topologies.

The device integrates protection functions: UVLO and thermal shutdown are included to easily design high reliability systems. Dual input pins allow choosing the control signal polarity and also implementing HW interlocking protection in order to avoid cross-conduction in case of controller's malfunction.

The device allows implementing negative gate driving, and the onboard isolated DC-DC converters allow working with optimized driving voltage for MOSFET/IGBT.

The EVALSTGAP2SAC board allows evaluating all the STGAP2SAC features while driving a half-bridge power stage with voltage rating up to 1200 V in TO-220 or TO-247 package.

The board allows easily selecting and modifying the values of relevant external components in order to ease driver performance evaluation under different applicative conditions and fine pre-tuning of the final application’s components.

• Board
  • High voltage rail up to 1200 V
  • Negative gate driving
  • Onboard isolated DC-DC converters to supply high-side and low-side gate drivers, fed by VAUX = 5 V, with 5.2 kV maximum isolation
  • 3.3 V VDD logic supply generated onboard
  • Easy jumper selection of driving voltage configuration: +15/0 V; +15/-3 V; +19/0 V; +19/-3 V;
• Device
  • Driver current capability: 4 A source/sink @ 25°C
  • Short propagation delay: 60 ns
  • UVLO function
  • Gate driving voltage up to 26 V
  • 3.3 V, 5 V TTL/CMOS inputs with hysteresis
  • Temperature shutdown protection
  • Standby function
  • 4 A Miller CLAMP