General Description

The TC4421M/TC4422M 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. These parts 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 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 4 kV of electrostatic discharge.

Features

• High Peak Output Current: 9A

• Wide Input Supply Voltage Operating Range:

- 4.5V to 18V

• High Continuous Output Current: 2A Max

• Fast Rise and Fall Times:

- 30 ns with 4,700 pF Load

- 180 ns with 47,000 pF Load

• Short Propagation Delays: 30 ns (typ)

• Low Supply Current:

- With Logic ‘1’ Input – 200 µA (typ)

- With Logic ‘0’ Input – 55 µA (typ)

• Low Output Impedance: 1.4 (typ)

• Latch-Up Protected: Will Withstand 1.5A Output Reverse Current

• Input: Will Withstand Negative Inputs Up To 5V

• Pin-Compatible with the TC4420M/TC4429M 6A MOSFET Driver

• Wide Operating Temperature Range:

- -55°C to +125°C

• See TC4421/TC4422 Data Sheet (DS21420) for additional temperature range and package offerings

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