The NCP51105 is a high current low side gate driver designed to

drive Power MOSFET and IGBT. The logic input is compatible with

CMOS and TTL output. The NCP51105 has OCP pin to provide over

current protection with negative voltage detected across switching

current sensing resistor and EN pin that be able to report faults status

to external controller such as MCU. EN pin must be pulled up to

higher voltage than threshold for normal operation while it will be

pulled down to disable output in all fault conditions. Internal VDD

circuitry provides an under?voltage lockout function by holding the

output low until supply voltage is recovered into operating range and

fault recovery time can be programmable by time constant set of

resistance and capacitance connected to EN pin.

特性 Features

? Wide Operating Voltage Range: up to 25 V

? 2.6 A Peak Sink/Source

? Shorter than 50 ns Propagation Delay Time

? Over Current Protection with Negative Voltage Sensing

? Input Logic Compatible with Wide Voltage Range for TTL & CMOS

? Programmable Fault Clear Time

? Under Voltage Lockout for MOSFET and IGBT

? This Device is Pb?Free, Halide Free and is RoHS Compliant

Typical Applications

? Switch?Mode Power Supplies

? High?Efficiency MOSFET Switching

? Synchronous Rectifier Circuits

? DC?to?DC Converters

? Motor Control