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Introduction, characteristics, and applications of Texas Instruments UCC44273 single-channel gate driver

2/8/2024 9:00:00 AM

Summary: High-speed low-side gate driver that efficiently drives MOSFET and IGBT power switches.

UCC44273 Texas Instruments

The UCC44273 single-channel gate driver is a high-speed, low-side gate driver that efficiently drives MOSFET and IGBT power switches. The driver provides 4A source and 4A sink (symmetrical drive) peak drive current capability at 12V (DD). The UCC44273 gate driver can source and sink high peak current pulses into capacitive loads, providing rail-to-rail drive capability and a small propagation delay of 13ns. This single-channel gate driver operates over a voltage range of 4.5V to 18V and a temperature range of -40°C to 140°C. The UCC44273 driver is ideal for power factor correction (PFC) stages, residential air conditioning (HVAC), switch-mode power supplies (SMPS), and motor drivers.


characteristic

  • 4A peak source-sink symmetrical driver

  • Able to handle negative voltages (-5V) at the input

  • 13ns typical fast propagation delay

  • Fast rise and fall times (9ns and 7ns typical)

  • 4.5V to 18V single supply range

  • Working temperature range -40℃~140℃

  • Hysteretic logic threshold for high noise immunity

  • Hold output low during V(DD) UVLO (ensuring trouble-free operation on power-up and power-down)

  • TTL and CMOS compatible input logic thresholds (independent of supply voltage)

  • The output remains low when the input pin is floating

  • The absolute maximum voltage level at the input pin is not limited by the V(DD) pin bias supply voltage

  • Industry standard pinout

  • 5pin DBV (SOT-23) package option


app

  • Power factor correction (PFC) stage

  • Residential air conditioning (HVAC)

  • Switching power supply (SMPS)

  • Motor driver

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