 2002 Microchip Technology Inc.

DS21420B-page 1

Features

• Tough CMOS Construction

• High Peak Output Current: 9A

• High Continuous Output Current: 2A Max

• Fast Rise and Fall Times:

- 30nsec with 4,700pF Load

- 180nsec with 47,000pF Load

• Short Internal Delays: 30nsec Typ.

• Low Output Impedance: 1.4

Ω Typ.

Applications

• Line Drivers for Extra-Heavily-Loaded Lines

• Pulse Generators

• Driving the Largest MOSFETs and IGBTs

• Local Power ON/OFF Switch

• Motor and Solenoid Driver

Device Selection Table

Package Type

General Description

The TC4421/TC4422 are high current buffer/drivers

capable of driving large MOSFETs and IGBTs.

They are essentially immune to any form of upset

except direct overvoltage or over-dissipation – they

cannot be latched under any conditions within their

power and voltage ratings; they are not subject to

damage or improper operation when up to 5V of ground

bounce is present on their ground terminals; they can

accept, without either damage or logic upset, more

than 1A inductive current of either polarity being forced

back into their outputs. In addition, all terminals are fully

protected against up to 4kV of electrostatic discharge.

The TC4421/TC4422 inputs may be driven directly

from either TTL or CMOS (3V to 18V). In addition,

300mV of hysteresis is built into the input, providing

noise immunity and allowing the device to be driven

from slowly rising or falling waveforms.

Functional Block Diagram

Part Number

Package

Temp. Range

TC4421CAT

5-Pin TO-220

0°C to +70°C

TC4421CPA

8-Pin PDIP

0°C to +70°C

TC4421EPA

8-Pin PDIP

-40°C to +85°C

TC4421MJA

8-Pin CERDIP

-55°C to +125°C

TC4422CAT

5-Pin TO-220

0°C to +70°C

TC4422CPA

8-Pin PDIP

0°C to +70°C

TC4422EPA

8-Pin PDIP

-40°C to +85°C

TC4422MJA

8-Pin CERDIP

-55°C to +125°C

Tab is

Common

1

2

3

45

6

7

8

OUTPUT

GND

TC4421

TC4422

TC4421

TC4422

INPUT

NC

GND

OUTPUT

NC = No connection

NOTE: Duplicate pins must both be connected for proper operation.

8-Pin PDIP/CERDIP

TO-220-5

GND

300mV

TC4421/TC4422

Inverting/Noninverting

4.7V

Inverting

Noninverting

Output

Input

Effective

Input

C = 25pF

9A High-Speed MOSFET Drivers