General Description

The TC4423/TC4424/TC4425 devices are a family of 3A, dual-output buffers/MOSFET drivers. Pin compatible with the TC1426/27/28, TC4426/27/28 and TC4426A/27A/28A dual 1.5A driver families, the TC4423/24/25 family has an increased latch-up current rating of 1.5A, making them even more robust for operation in harsh electrical environments.

Features

• High Peak Output Current: 3A
• Wide Input Supply Voltage Operating Range:
- 4.5V to 18V
• High Capacitive Load Drive Capability:
- 1800 pF in 25 ns
• Short Delay Times: <40 ns (typ)
• Matched Rise/Fall Times
• Low Supply Current:
- With Logic ‘1’ Input – 3.5 mA (Max)
- With Logic ‘0’ Input – 350 µA (Max)
• Low Output Impedance: 3.5Ω (typ)
• Latch-Up Protected: Will Withstand 1.5A Reverse Current
• Logic Input Will Withstand Negative Swing Up To 5V
• ESD Protected: 4 kV
• Pin compatible with the TC1426/TC1427/TC1428, TC4426/TC4427/TC4428 and TC4426A/TC4427A/TC4428A devices.
• Space-saving 8-Pin 6x5 DFN Package

Applications

• Switch Mode Power Supplies
• Pulse Transformer Drive
• Line Drivers

Absolute Maximum Ratings

Supply Voltage ................................................................+22V
Input Voltage, IN A or IN B................................................(VDD + 0.3V) to (GND – 5V)
Package Power Dissipation (TA ≤ 70°C)
DFN ......................................................................... Note 2
PDIP .......................................................................730 mW
SOIC.......................................................................470 mW