2006-2014 Microchip Technology Inc.
DS20001987C-page 1
TC4451/TC4452
Features:
• High Peak Output Current: 13A (typical)
• Low Shoot-Through/Cross-Conduction Current in
Output Stage
• Wide Input Supply Voltage Operating Range:
- 4.5V to 18V
• High Continuous Output Current: 2.6A
(maximum)
• Matched Fast Rise and Fall Times:
- 21 ns with 10,000 pF Load
- 42 ns with 22,000 pF Load
• Matched Short Propagation Delays: 44 ns
(typical)
• Low Supply Current:
- With Logic ‘
1
’ Input – 140 µA (typical)
- With Logic ‘
0
’ Input – 40 µA (typical)
• Low Output Impedance: 0.9
(typical)
• Latch-Up Protected: Withstands 1.5A Output
Reverse Current
• Input Withstands Negative Inputs Up To 5V
• Pin-Compatible with the TC4420/TC4429,
TC4421/TC4422 and TC4421A/TC4422A
MOSFET Drivers
• Space-Saving, Thermally-Enhanced, 8-Pin DFN-
S Package
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
• LF Initiator
General Description:
The TC4451/TC4452 are single-output MOSFET
drivers. These devices are high-current buffers/drivers
capable of driving large MOSFETs and insulated gate
bipolar transistors (IGBTs). The TC4451/TC4452 have
matched output rise and fall times, as well as matched
leading and falling-edge propagation delay times. The
TC4451/TC4452 devices also have very low cross-
conduction current, reducing the overall power
dissipation of the device.
These devices 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 1.5A inductive current of either
polarity being forced back into their outputs. In addition,
all terminals are fully protected against electrostatic
discharge (ESD) up to 4.0 kV (HBM) and 400V (MM).
The TC4451/TC4452 inputs may be driven directly
from either TTL or CMOS (3V to 18V). Moreover,
300 mV of hysteresis is built into the input, providing
noise immunity and enabling the device to be driven
from slowly rising or falling waveforms.
With a wide operating temperature range and having
both surface-mount and pin-through-hole packages,
the TC4451/TC4452 family of 12A MOSFET drivers fits
into any application where high gate/line capacitance
drive is required.
12A High-Speed MOSFET Drivers
