Product Details

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Description

The SL4427 is a dual 4A high-speed low-side gate driver that efficiently and safely drives MOSFETs as well as IGBTs.Available in SOP-8 packages with or without thermal pads, low propagation delays and mismatches allow MOSFETs to switch in the hundreds of kHz.This chip is very suitable for the synchronous rectification drive of server and communication power supplies, in which the dead time of the synchronous MOSFET directly affects the efficiency of the converter. The driver can increase the output drive current by paralleling two channels. When only one enable pin is enabled high (the other enable pin is floating), the outputs of both channels are driven by a phase-one logic signal This feature can greatly reduce the mismatch between the two channels and make it suitable for driving parallel switches.The driver's input thresholds are based on TTL levels up to 20V tolerance.

Characteristics

● Dual-channel independent-grid driving

● 4A peak soureing current and sinking current

● V_DD power supply with wide ranges as high as 25V

● Independent enabling input

● Dual channels can be used in parallel for high current drive

● Floating an enable pin enhances parallel accuracy

● V_DD under-voltage protection

● TTL and CMOS compatible level inputs

● Low latency (45ns typical)with built-in noise cancellation filter

● I ns typical delay match between two channels

● When the input is floating,the output is low