Description

The UCC27524 device is a dual-channel, high-speed, low-side gate driver capable of effectively driving MOSFET and IGBT switches. For enhanced robustness, the UCC27524 features the ability to directly handle –5V at the input pins. The UCC27524 is a dual-channel in-phase driver. With a design that internally greatly reduces shoot-through current, the UCC27524 can deliver high-peak current pulses of up to 5A source and 5A sink into capacitive loads, featuring rail-to-rail drive capability and an ultra-low propagation delay of 17ns typical. In addition, the driver features matched internal propagation delays between the two channels, making it well-suited for applications with strict timing requirements for dual-gate driving such as synchronous rectifiers. This also allows the two channels to be paralleled to effectively increase current drive capability or to drive two parallel switches using a single input signal. The input pin thresholds are based on TTL and CMOS-compatible low-voltage logic that is fixed and independent of the VDD supply voltage. Wide hysteresis between the high and low thresholds provides excellent noise immunity.

Features:

• Industry-standard pinout

• Two independent gate drive channels

• 5A peak source and sink current

• Independent enable function for each output

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

• Hysteretic logic thresholds for high noise immunity

• Capable of handling negative voltage (–5V) at inputs

• Input and enable pin voltage levels not restricted by VDD pin supply voltage

• 4.5V to 18V single-supply voltage range

• Output held low during VDD UVLO (ensures glitch-free operation during power-up and power-down)

• Low propagation delay (17ns typical)

• Fast rise and fall times (6ns and 10ns typical, respectively)

• Delay matching between two channels (1ns typical)

• Two outputs can be paralleled for higher drive current

• Output held low when input is floating

• Available in SOIC-8 and HVSSOP-8 PowerPAD™ package options

• Operating junction temperature range: –40°C to 150°C

Applications:

• Switch-mode power supplies

• DC-DC converters

• Motor control, solar

• Gate driving for emerging wide-bandgap power devices such as GaN