2002 Microchip Technology Inc. DS21420B-page 1
• 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.
Line Drivers for Extra-Heavily-Loaded Lines
Driving the Largest MOSFETs and IGBTs
Local Power ON/OFF Switch
Motor and Solenoid Driver
Device Selection Table
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.
Functional Block Diagram
Part Number Package Temp. Range
TC4421CAT 5-Pin TO-220 0°C to +70°C
TC4421CPA 8-Pin PDIP 0°C to +70°C
TC4421EPA 8-Pin PDIP -40°C to +85°C
TC4421MJA 8-Pin CERDIP -55°C to +125°C
TC4422CAT 5-Pin TO-220 0°C to +70°C
TC4422CPA 8-Pin PDIP 0°C to +70°C
TC4422EPA 8-Pin PDIP -40°C to +85°C
TC4422MJA 8-Pin CERDIP -55°C to +125°C
NC = No connection
NOTE: Duplicate pins must both be connected for proper operation.
C = 25pF
9A High-Speed MOSFET Drivers