TC4423COE Microchip

TC4423/TC4424/TC4425 3A Dual High-Speed Power MOSFET Drivers Features General Description High Peak Output Current: 3A The TC4423/TC4424/TC4425 devices are a family of 3A, dual-output buffers/MOSFET drivers. Pin compati- Wide Input Supply Voltage Operating Range: ble with the TC1426/27/28, TC4426/27/28 and - 4.5V to 18V TC4426A/27A/28A dual 1.5A driver families, the High Capacitive Load Drive Capability: TC4423/24/25 family has an increased latch-up current - 1800 pF in 25 ns rating of 1.5A, making them even more robust for Short Delay Times: <40 ns (typ) operation in harsh electrical environments. Matched Rise/Fall Times As MOSFET drivers, the TC4423/TC4424/TC4425 can Low Supply Current: easily charge 1800pF gate capacitance in under 35 nsec, providing low enough impedances in both the - With Logic 1 Input 3.5 mA (Max) on and off states to ensure the MOSFET s intended - With Logic 0 Input 350 A (Max) state will not be affected, even by large transients. Low Output Impedance: 3.5 (typ) The TC4423/TC4424/TC4425 inputs may be driven Latch-Up Protected: Will Withstand 1.5A Reverse directly from either TTL or CMOS (2.4V to 18V). In Current addition, the 300 mV of built-in hysteresis provides Logic Input Will Withstand Negative Swing Up To noise immunity and allows the device to be driven from 5V slowly rising or falling waveforms. ESD Protected: 4 kV Pin compatible with the TC1426/TC1427/TC1428, TC4426/TC4427/TC4428 and TC4426A/ TC4427A/TC4428A devices. Space-saving 8-Pin 6x5 DFN Package Applications Switch Mode Power Supplies Pulse Transformer Drive Line Drivers (1) Package Types TC4423 TC4424 TC4425 8-Pin PDIP NC NC 1 8 NC NC TC4423 TC4424 TC4425 16-Pin SOIC (Wide) IN A 2 TC4423 7 OUT A OUT A OUT A TC4424 NC 1 16 NC NC NC GND 3 6 V V V DD DD DD TC4425 15 IN A 2 OUT A OUT A OUT A IN B 4 5 OUT B OUT B OUT B 3 14 NC OUT A OUT A OUT A TC4423 GND 4 13 V V V (2) TC4423 TC4424 TC4425 DD DD DD TC4424 8-Pin DFN V V V GND 5 12 DD DD DD TC4425 1 8 NC 6 11 OUT B OUT B OUT B NC NC NC NC IN B 7 10 OUT B OUT B OUT B TC4423 2 IN A 7 OUT A OUT A OUT A NC 8 9 NC NC NC TC4424 3 6 GND V V V DD TC4425 DD DD 4 5 IN B OUT B OUT B OUT B Note 1: Duplicate pins must both be connected for proper operation. 2: Exposed pad of the DFN package is electrically isolated. 2002-2012 Microchip Technology Inc. DS21421E-page 1TC4423/TC4424/TC4425 (1) Functional Block Diagram V DD Inverting 750 A 300 mV Output Non-inverting Input Effective 4.7V TC4423 Dual Inverting Input C = 20 pF TC4424 Dual Non-inverting (Each Input) TC4425 One Inverting, One Non-inverting GND Note 1: Unused inputs should be grounded. DS21421E-page 2 2002-2012 Microchip Technology Inc.