TC4426M/TC4427M/TC4428M
1.5A Dual High-Speed Power MOSFET Drivers
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 25 ns (typ.)
• Short Delay Times – 40 ns (typ.)
• Matched Rise and Fall Times
• Low Supply Current:
- With Logic ‘1’ Input – 4 mA
- With Logic ‘0’ Input – 400 µA
• Low Output Impedance – 7Ω
• 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, TC4426AM/TC4427AM/TC4428AM
Devices
• Wide Operating Temperature Range:
- -55°C to +125°C
• See TC4426/TC4427/TC4428 data sheet
(DS21422) for additional temperature range and
packaging offerings
General Description
The TC4426M/TC4427M/TC4428M are improved
versions of the earlier TC426M/TC427M/TC428M
family of MOSFET drivers. The TC4426M/TC4427M/
TC4428M devices have matched rise and fall times
when charging and discharging the gate of a MOSFET.
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
500 mA 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 TC4426M/TC4427M/TC4428M MOSFET drivers
can
easily
charge/discharge
1000 pF
gate
capacitances in under 30 ns and provide 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.
The TC4426AM/TC4427AM/TC4428AM family of
devices are also compatible drivers. The TC4426AM/
TC4427AM/TC4428AM devices have matched
leading and falling edge input-to-output delay times, in
addition to the matched rise and fall times of the
TC4426M/TC4427M/TC4428M devices.
Applications
• Switch-mode Power Supplies
• Line Drivers
• Pulse Transformer Drive
Package Types
8-Pin CERDIP TC4426M TC4427M TC4428M
NC 1
IN A 2
GND 3
IN B 4
8 NC
NC
OUT A
V
DD
OUT B
NC
OUT A
V
DD
OUT B
TC4426M
TC4427M
TC4428M
7 OUT A
6 V
DD
5 OUT B
©
2005 Microchip Technology Inc.
DS21938A-page 1
MICROCHIP [ MICROCHIP TECHNOLOGY ]
