TC4431CPA Microchip

TC4431/TC4432 1.5A High-Speed 30V MOSFET Drivers Features General Description High Peak Output Current 1.5 A The TC4431/TC4432 are 30V CMOS buffer/drivers suitable for use in high-side driver applications. They Wide Input Supply Operating Range: will not latch up under any conditions within their power - 4.5V to 30V and voltage ratings. They can accept, without damage High Capacitive Load Drive Capability: or logic upset, up to 300 mA of reverse current (of - 1000 pF in 25 nsec either polarity) being forced back into their outputs. All Short Delay Times <78 nsec Typ. terminals are fully protected against up to 4kV of electrostatic discharge. Low Supply Current: - With Logic 1 Input 2.5 mA Under-voltage lockout circuitry forces the output to a low state when the input supply voltage drops below - With Logic 0 Input 300 A 7V. For operation at lower voltages, disable the lockout Low Output Impedance 7 ) for and start-up circuit by grounding pin 3 (LOCK DIS Latch-Up Protected: Will Withstand >300 mA all other situations, pin 3 (LOCK DIS) should be left Reverse Current floating. The under-voltage lockout and start-up circuit ESD Protected 4 kV gives brown out protection when driving MOSFETS. Applications Package Type Small Motor Drive 8-Pin PDIP/SOIC/CERDIP Power MOSFET Driver V 1 8 V Driving Bipolar Transistors DD DD IN 2 7 OUT TC4431 3 LOCK DIS 6 OUT GND 4 5 GND 7 2 6 Inverting V 1 8 V DD DD IN 2 7 OUT TC4432 3 LOCK DIS 6 OUT GND 4 5 GND 7 2 6 Non Inverting 2007 Microchip Technology Inc. DS21424D-page 1TC4431/TC4432 Functional Block Diagram 8 V DD 3 UV LOCK LOCK DIS 2mA Inverting TC4431 7 OUT OUT 6 Non Inverting 2 250 mV TC4432 Input TC4431/TC4432 Inverting/Non Inverting 4, 5 GND Effective Input C = 10 pF DS21424D-page 2 2007 Microchip Technology Inc.