General Description

The TC4421A/TC4422A are improved versions of the earlier TC4421/TC4422 family of single-output MOSFET drivers. These devices are high-current buffer/drivers capable of driving large MOSFETs and Insulated Gate Bipolar Transistors (IGBTs). The TC4421A/TC4422A have matched output rise and fall times, as well as matched leading and falling-edge propagation delay times. The TC4421A/TC4422A devices also have very low cross-conduction current, reducing the overall power dissipation of the device.

Features

• High Peak Output Current: 10A (typ.)

• Low Shoot-Through/Cross-Conduction Current in Output Stage

• Wide Input Supply Voltage Operating Range:

- 4.5V to 18V

• High Continuous Output Current: 2A (max.)

• Matched Fast Rise and Fall Times:

- 15 ns with 4,700 pF Load

- 135 ns with 47,000 pF Load

• Matched Short Propagation Delays: 42 ns (typ.)

• Low Supply Current:

- With Logic ‘1’ Input – 130 µA (typ.)

- With Logic ‘0’ Input – 33 µA (typ.)

• Low Output Impedance: 1.2 (typ.)

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

• Input Will Withstand Negative Inputs Up To 5V

• Pin-Compatible with the TC4420/TC4429 and TC4421/TC4422 MOSFET Drivers

• Space-Saving, Thermally-Enhanced, 8-Pin DFN Package

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

• LF Initiator