M
Features
•
•
•
•
TC4421/TC4422
Package Type
TO-220-5
8-Pin PDIP/CERDIP
V
DD
1
INPUT 2
8 V
DD
9A High-Speed MOSFET Drivers
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
NC = No connection
NOTE:
Duplicate pins must both be connected for proper operation.
General Description
The TC4421/TC4422 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; they 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 either 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 4kV of electrostatic discharge.
The TC4421/TC4422 inputs may be driven directly
from either TTL or CMOS (3V to 18V). In addition,
300mV of hysteresis is built into the input, providing
noise immunity and allowing the device to be driven
from slowly rising or falling waveforms.
Device Selection Table
Part Number
TC4421CAT
TC4421CPA
TC4421EPA
TC4421MJA
TC4422CAT
TC4422CPA
TC4422EPA
TC4422MJA
Package
5-Pin TO-220
8-Pin PDIP
8-Pin PDIP
8-Pin CERDIP
5-Pin TO-220
8-Pin PDIP
8-Pin PDIP
8-Pin CERDIP
Temp. Range
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-55°C to +125°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-55°C to +125°C
Functional Block Diagram
Inverting
V
DD
300mV
Output
Input
4.7V
Noninverting
TC4421/TC4422
Inverting/Noninverting
GND
Effective
Input
C = 25pF
2002 Microchip Technology Inc.
INPUT
GND
V
DD
GND
OUTPUT
Tough CMOS Construction
High Peak Output Current: 9A
High Continuous Output Current: 2A Max
Fast Rise and Fall Times:
- 30nsec with 4,700pF Load
- 180nsec with 47,000pF Load
• Short Internal Delays: 30nsec Typ.
• Low Output Impedance: 1.4Ω Typ.
TC4421
TC4422
Tab is
Common
to V
DD
NC 3
GND 4
TC4421
TC4422
7 OUTPUT
6 OUTPUT
5 GND
DS21420B-page 1
MICROCHIP [ MICROCHIP TECHNOLOGY ]
