TC4424AVPA Microchip

TC4423A/TC4424A/TC4425A 3A Dual High-Speed Power MOSFET Drivers Features General Description High Peak Output Current: 4.5A (typical) The TC4423A/TC4424A/TC4425A devices are a family of dual-output 3A buffers/MOSFET drivers. These Wide Input Supply Voltage Operating Range: devices are improved versions of the earlier TC4423/ - 4.5V to 18V TC4424/TC4425 dual-output 3A driver family. This High Capacitive Load Drive Capability: improved version features higher peak output current - 1800 pF in 12 ns drive capability, lower shoot-throught current, matched Short Delay Times: 40 ns (typical) rise/fall times and propagation delay times. The TC4423A/TC4424A/TC4425A devices are pin- Matched Rise/Fall Times compatible with the existing TC4423/TC4424/TC4425 Low Supply Current: family. An 8-pin SOIC package option has been added - With Logic 1 Input 1.0 mA (maximum) to the family. The 8-pin DFN package option offers - With Logic 0 Input 150 A (maximum) increased power dissipation capability for driving Low Output Impedance: 2.5 (typical) heavier capacitive or resistive loads. Latch-Up Protected: Will Withstand 1.5A Reverse The TC4423A/TC4424A/TC4425A MOSFET drivers Current can easily charge and discharge 1800pF gate Logic Input Will Withstand Negative Swing Up To capacitance in under 20 ns, provide low enough 5V impedances in both the on and off states to ensure the Pin compatible with the TC4423/TC4424/TC4425 MOSFETs intended state will not be affected, even by and TC4426A/TC4427A/TC4428A devices large transients. Space-saving 8-Pin 150 mil body SOIC and 8-Pin The TC4423A/TC4424A/TC4425A inputs may be 6x5 DFN Packages driven directly from either TTL or CMOS (2.4V to 18V). In addition, the 300 mV of built-in hysteresis provides noise immunity and allows the device to be driven from Applications slow rising or falling waveforms. Switch Mode Power Supplies The TC4423A/TC4424A/TC4425A dual-output 3A Pulse Transformer Drive o o C to +125 C MOSFET driver family is offerd with a -40 Line Drivers temperature rating, making it useful in any wide Direct Drive of Small DC Motors temperature range application. Package Types 8-Pin PDIP/SOIC TC4423A TC4424A TC4425A TC4423A TC4424A TC4425A 16-Pin SOIC (Wide ) 1 16 NC 1 8 NC NC NC NC NC NC NC IN A 2 15 TC4423A OUT A OUT A OUT A IN A 2 7 OUT A OUT A OUT A TC4424A NC 3 14 OUT A OUT A OUT A GND 3 6 V V V DD DD DD TC4423A TC4425A 4 13 V V V GND DD DD DD IN B 4 5 OUT B OUT B OUT B TC4424A 5 12 V V V GND DD DD DD TC4425A NC 6 11 OUT B OUT B OUT B (1) TC4423A TC4424A TC4425A 8-Pin 6x5 DFN 10 IN B 7 OUT B OUT B OUT B NC 8 9 NC NC NC 1 NC 8 NC NC NC TC4423A 2 7 IN A OUT A OUT A OUT A TC4424A 3 GND 6 V V V TC4425A DD DD DD 4 5 IN B OUT B OUT B OUT B Note 1: Exposed pad of the DFN package is electrically isolated. 2: Duplicate pins must both be connected for proper operation. 2007 Microchip Technology Inc. DS21998B-page 1TC4423A/TC4424A/TC4425A (1) Functional Block Diagram V DD Inverting 750 A 300 mV Output Non-inverting Input Effective 4.7V TC44 23A Dual Inverting Input C = 20 pF TC44 24A Dual Non-inverting (Each Input) TC4425A Inverting / Non-inverting GND Note 1: Unused inputs should be grounded. DS21998B-page 2 2007 Microchip Technology Inc.