TC4420M Datasheet, PDF (1/18 Pages) Microchip Technology – 6A High-Speed MOSFET Drivers

TC4420M/TC4429M
6A High-Speed MOSFET Drivers
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 (typ.)
• CMOS/TTL-Compatible Input
• Low Supply Current With Logic ‘1’ Input:
- 450 µA (typ.)
• Low Output Impedance: 2.5Ω
• 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
eliminates 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 propagational delay time is only 55 ns (typ.), while
the output rise and fall times are only 25 ns (typ.) into
2500 pF across the usable power supply range.
Unlike other drivers, the TC4420M/TC4429M are
virtually 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 TC4420M TC4429M
V_DD 1
INPUT 2
NC 3
GND 4
8 V_DD
7 OUTPUT
6 OUTPUT
5 GND
V_DD
OUTPUT
OUTPUT
GND
Note: Duplicate pins must both be connected for
proper operation.
© 2005 Microchip Technology Inc.
DS21933A-page 1