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Dual channel 4A gate driver with galvanic Isolation and protection

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By Nick Flaherty

Rated up to 1700V, the built-in isolation of the STGAP2DM enhances safety as well as simplifying design and saving bill of materials and board space. The two 26V rail-to-rail outputs with 4A gate-drive capability ensure strong performance in industrial motor drives and high-power inverters. The STGAP2DM is also ideal for battery chargers, welders, induction heaters, and general-purpose power supplies and converters.

Comprehensive built-in safety features simplify system design and enhance reliability, including dedicated Shutdown and Brake pins, Under-Voltage Lockout (UVLO), interlocking to prevent both outputs being high at the same time, and thermal shutdown. A standby mode, controlled by managing voltages on the input pins, lets users save power when the driver is idle.

The 3.3V/5V TTL/CMOS logic-compatible inputs allow easy connection to a host controller, and input-to-output propagation delay of 80ns ensures fast operation with high PWM-control accuracy.

The STAGP2DM is in production now, packaged as a compact SO-16 device with pinout optimized to simplify board design. Prices start from $2.17 for orders of 1000 pieces. The device will be shown at Electronica 2018 in Munich this week.

www.st.com


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