tailieunhanh - Tài liệu Robot: 3A Dual High-Speed Power MOSFET Drivers

High Peak Output Current: (typical) Wide Input Supply Voltage Operating Range: to 18V High Capacitive Load Drive Capability: 1800 pF in 12 ns Short Delay Times: 40 ns (typical) Matched Rise/Fall Times Low Supply Current: With Logic ‘1’ Input – mA (maximum) With Logic ‘0’ Input – 150 μA (maximum) Low Output Impedance: (typical) | Microchip TC4423A TC4424A TC4425A 3A Dual High-Speed Power MOSFET Drivers Features High Peak Output Current typical Wide Input Supply Voltage Operating Range - to 18V High Capacitive Load Drive Capability - 1800 pF in 12 ns Short Delay Times 40 ns typical Matched Rise Fall Times Low Supply Current - With Logic 1 Input - mA maximum - With Logic 0 Input - 150 pA maximum Low Output Impedance typical Latch-Up Protected Will Withstand Reverse Current Logic Input Will Withstand Negative Swing Up To 5V Pin compatible with the TC4423 TC4424 TC4425 and TC4426A TC4427A TC4428A devices Space-saving 8-Pin 150 mil body SOIC and 8-Pin 6x5 DFN Packages Applications Switch Mode Power Supplies Pulse Transformer Drive Line Drivers Direct Drive of Small DC Motors General Description The TC4423A TC4424A TC4425A devices are a family of dual-output 3A buffers MOSFET drivers. These devices are improved versions of the earlier TC4423 TC4424 TC4425 dual-output 3A driver family. This improved version features higher peak output current drive capability lower shoot-throught current matched rise fall times and propagation delay times. The TC4423A TC4424A TC4425A devices are pincompatible with the existing TC4423 TC4424 TC4425 family. An 8-pin SOIC package option has been added to the family. The 8-pin DFN package option offers increased power dissipation capability for driving heavier capacitive or resistive loads. The TC4423A TC4424A TC4425A MOSFET drivers can easily charge and discharge 1800 pF gate capacitance in under 20 ns provide low enough impedances in both the on and off states to ensure the MOSFET s intended state will not be affected even by large transients. The TC4423A TC4424A TC4425A inputs may be driven directly from either TTL or CMOS to 18V . In addition the 300 mV of built-in hysteresis provides noise immunity and allows the device to be driven from slow rising or falling waveforms. The TC4423A TC4424A TC4425A dual-output 3A MOSFET driver family