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TC4421M/TC4422M
9A High-Speed MOSFET Drivers
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 Ω (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:
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.
The TC4421M/TC4422M inputs may be driven directly
from either TTL or CMOS (3V to 18V). In addition,
300 mV of hysteresis is built into the input, providing
noise immunity and allowing the device to be driven
from slowly rising or falling waveforms.
Package Types
- -55°C to +125°C
8-Pin CERDIP
TC4421M TC4422M
? See TC4421/TC4422 Data Sheet (DS21420) for
additional temperature range and package
offerings
Applications
V DD
INPUT
NC
GND
1
2
3
4
8
7
6
5
V DD
OUTPUT
OUTPUT
GND
V DD
OUTPUT
OUTPUT
GND
?
?
?
?
?
Line Drivers for Extra Heavily-Loaded Lines
Pulse Generators
Driving the Largest MOSFETs and IGBTs
Local Power ON/OFF Switch
Motor and Solenoid Driver
Note:
Duplicate pins must both be connected for
proper operation.
? 2005 Microchip Technology Inc.
DS21934A-page 1
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