Microchip TC4426 Handleiding

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 2005-2013 Microchip Technology Inc.DS21939B-page 1

TC4426AM/TC4427AM/TC4428AM

Features

•High Peak Output Current: 1.5A

•Wide Input Supply Voltage Operating Range:

-4.5V to 18V

•High Capacitive Load Drive Capability:

-1000 pF in 25ns (typ.)

•Short Delay Times: 30 ns (typ.)

•Matched Rise, Fall and Delay Times

•Low Supply Current:

-With Logic ‘1’ Input – 1 mA (typ.)

-With Logic ‘0’ Input – 100 µA (typ.)

•Low Output Impedance: 7(typ.)

•Latch-Up Protected: Will Withstand 0.5A Reverse

Current

•Input: Will Withstand Negative Inputs Up to 5V

•ESD Protected: 4 kV

•Pin-compatible with the

TC426M/TC427M/TC428M and

TC4426M/TC4427M/TC4428M

•Wide Operating Temperature Range:

--55°C to +125°C

•See TC4426A/TC4427A/TC4428A Data Sheet

(DS21423) for additional temperature range and

packaging offerings

Applications

•Switch-mode Power Supplies

•Line Drivers

•Pulse Transformer Drive

General Description

The TC4426AM/TC4427AM/TC4428AM are improved

versions of the earlier TC4426M/TC4427M/TC4428M

family of MOSFET drivers. In addition to matched rise

and fall times, the TC4426AM/TC4427AM/TC4428AM

devices have matched leading and falling edge

propagation delay times.

These devices are highly latch-up resistant under any

conditions within their power and voltage ratings. They

are not subject to damage when up to 5V of noise

spiking (of either polarity) occurs on the ground pin.

They can accept, without damage or logic upset, up to

500mA of reverse current (of either polarity) being

forced back into their outputs. All terminals are fully

protected against Electrostatic Discharge (ESD) up to

4 kV.

The TC4426AM/TC4427AM/TC4428AM MOSFET

drivers can easily charge/discharge 1000 pF gate

capacitances in under 30 ns, while providing 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.

Package Types

8-Pin CERDIP

1

2

3

4

NC

5

6

7

8

OUT A

OUT B

NC

IN A

GND

IN B

VDD

TC4426AM

TC4427AM

TC4426AM TC4427AM

NC

OUT A

OUT B

VDD

TC4428AM

NC

OUT A

OUT B

VDD

TC4428AM

1.5A Dual High-Speed Power MOSFET Drivers

Product specificaties