TI UCC27532DBVR

The UCC27532 is a single-channel, high-speed gate driver capable of effectively driving MOSFET and IGBT power switches with up to 2.5A source current and 5A sink current (asymmetric drive). The strong sink capability in the asymmetric drive enhances immunity to parasitic Miller turn-on effects. The UCC27532 also features a split-output configuration in which gate drive current is sourced from the OUTH pin and sunk into the OUTL pin. This unique pin arrangement allows users to place independent turn-on and turn-off resistors on the OUTH and OUTL pins respectively, enabling easy control of the switching slew rate. The driver features rail-to-rail drive capability and an extremely low propagation delay with a typical value of 17ns. The UCC27532DBV has CMOS input thresholds, which fall between 55% above VDD and 45% below VDD when VDD is less than or equal to 18V. When VDD exceeds 18V, the input threshold is held at its maximum level. The driver features an EN pin supporting fixed TTL-compatible thresholds. EN is internally pulled up; pulling EN low disables the driver, while leaving it open allows normal operation. The EN pin can be used as an additional input with the same functionality as the IN pin. Leaving the driver's input pin open will hold the output low. Internal circuitry on the VDD pin provides an UVLO function that holds the output low until the VDD supply voltage is within the operating range. The UCC27532 driver is available in a 6-pin standard SOT-23 (DBV) package. The device has a wide operating temperature range of -40°C to 140°C.

• Low-cost gate driver (optimal solution for driving FETs and IGBTs)
• Excellent discrete transistor pair drive replacement (provides easy interfacing with controllers)
• CMOS-compatible input logic threshold (becomes fixed when VDD exceeds 18V)
• Split outputs for independent turn-on and turn-off adjustment
• Enable via fixed TTL-compatible threshold
• High 2.5A source and 5A sink peak drive current at 18V VDD
• Wide VDD range from 10V to 35V
• Input pins tolerant of DC voltages up to 5V below ground
• Output held low when inputs are floating or during VDD UVLO
• Fast propagation delay (typical 17ns)
• Fast rise and fall times (typical 15ns and 7ns respectively at 1800pF load)
• UVLO
• Usable as high-side or low-side driver (with appropriate biasing and signal isolation design)
• Low-cost, space-saving 6-pin DBV (SOT-23) package
• Operating temperature range -40°C to 140°C

• Switched-mode power supplies
• DC-to-DC converters
• Solar inverters, motor control, UPS
• HEV and EV chargers
• Home appliances
• Renewable energy power conversion
• SiC FET converters