2005-2012 Microchip Technology Inc. DS21933B-page 1
TC4420M/TC4429M
Features
• Latch-Up Protected: Will Withstand >1.5A
Reverse Output Current
• Logic Input: Will Withstand Negative Swing
Up To 5V
• ESD Protected: 4 kV
• Matched Rise and Fall Times:
- 25 ns (2500 pF load)
• High Peak Output Current: 6A
• Wide Input Supply Voltage Operating Range:
- 4.5V to 18V
• High Capacitive Load Drive Capability: 10,000 pF
• Short Delay Time: 55 ns (typical)
• CMOS/TTL-Compatible Input
• Low Supply Current With Logic ‘1’ Input:
- 450 µA (typical)
• Low Output Impedance: 2.5
• Output Voltage Swing to Within 25 mV of Ground
or V
DD
• Wide Operating Temperature Range:
- -55°C to +125°C
• See TC4420/TC4429 Data Sheet (DS21419) for
additional temperature range and package
offerings.
Applications
• Switch-mode Power Supplies
• Motor Controls
• Pulse Transformer Driver
• Class D Switching Amplifiers
General Description
The TC4420M/TC4429M are 6A (peak), single-output
MOSFET drivers. The TC4429M is an inverting driver
(pin-compatible with the TC429M), while the TC4420M
is a non-inverting driver. These drivers are fabricated in
CMOS for lower power and more efficient operation
versus bipolar drivers.
Both devices have TTL/CMOS-compatible inputs,
which can be driven as high as V
DD
+ 0.3V or as low as
-5V without upset or damage to the device. This elimi-
nates the need for external level-shifting circuitry and
its associated cost and size. The output swing is rail-to-
rail, ensuring better drive voltage margin, especially
during power-up/power-down sequencing. The propa-
gational delay time is only 55 ns (typical), while the out-
put rise and fall times are only 25 ns (typical) into
2500 pF across the usable power supply range.
Unlike other drivers, the TC4420M/TC4429M are virtu-
ally latch-up proof. They replace three or more discrete
components, saving PCB area and parts while
improving overall system reliability.
Package Types:
8-Pin CERDIP
1
2
3
4
V
DD
5
6
7
8
OUTPUT
GND
V
DD
INPUT
NC
GND
OUTPUT
TC4420M
Note: Duplicate pins must both be connected for
proper operation.
TC4429M
6A High-Speed MOSFET Drivers
1
2
3
4
5
6
7
8
V
DD
INPUT
NC
GND
V
DD
OUTPUT
GND
OUTPUT
