tc4424a Microchip Technology Inc., tc4424a Datasheet
tc4424a
Manufacturer Part Number
tc4424a
Description
3a Dual High-speed Power Mosfet Drivers
Manufacturer
Microchip Technology Inc.
Datasheet
1.TC4424A.pdf
(22 pages)
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Features
• High Peak Output Current: 4.5A (typical)
• Wide Input Supply Voltage Operating Range:
• High Capacitive Load Drive Capability:
• Short Delay Times: 40 ns (typical)
• Matched Rise/Fall Times
• Low Supply Current:
• Low Output Impedance: 2.5Ω (typical)
• Latch-Up Protected: Will Withstand 1.5A Reverse
• Logic Input Will Withstand Negative Swing Up To
• Pin compatible with the TC4423/TC4424/TC4425
• Space-saving 8-Pin 150 mil body SOIC and 8-Pin
Applications
• Switch Mode Power Supplies
• Pulse Transformer Drive
• Line Drivers
• Direct Drive of Small DC Motors
Package Types
© 2007 Microchip Technology Inc.
- 4.5V to 18V
- 1800 pF in 12 ns
- With Logic ‘1’ Input – 1.0 mA (maximum)
- With Logic ‘0’ Input – 150 µA (maximum)
Current
5V
and TC4426A/TC4427A/TC4428A devices
6x5 DFN Packages
GND
GND
8-Pin PDIP/SOIC
IN A
IN B
IN A
IN B
Note 1: Exposed pad of the DFN package is electrically isolated.
NC
NC
8-Pin 6x5 DFN
1
2
3
4
1
2
3
4
2: Duplicate pins must both be connected for proper operation
TC4423A
TC4424A
TC4425A
TC4423A
TC4424A
TC4425A
3A Dual High-Speed Power MOSFET Drivers
8
7
6
5
(1
TC4423A TC4424A
)
NC
OUT A
V
OUT B
8
7
6
5
DD
TC4423A TC4424A
NC
OUT A
V
OUT B
DD
NC
OUT A
V
OUT B
DD
TC4423A/TC4424A/TC4425A
NC
OUT A
V
OUT B
DD
TC4425A
NC
OUT A
V
OUT B
DD
TC4425A
NC
OUT A
V
OUT B
DD
GND
GND
IN A
IN B
16-Pin SOIC (Wide
NC
NC
NC
NC
General Description
The TC4423A/TC4424A/TC4425A devices are a family
of dual-output 3A buffers/MOSFET drivers. These
devices are improved versions of the earlier TC4423/
TC4424/TC4425 dual-output 3A driver family. This
improved version features higher peak output current
drive capability, lower shoot-throught current, matched
rise/fall times and propagation delay times. The
TC4423A/TC4424A/TC4425A
compatible with the existing TC4423/TC4424/TC4425
family. An 8-pin SOIC package option has been added
to the family. The 8-pin DFN package option offers
increased power dissipation capability for driving
heavier capacitive or resistive loads.
The TC4423A/TC4424A/TC4425A MOSFET drivers
can easily charge and discharge 1800 pF gate
capacitance in under 20 ns, provide low enough
impedances in both the on and off states to ensure the
MOSFET’s intended state will not be affected, even by
large transients.
The TC4423A/TC4424A/TC4425A inputs may be
driven directly from either TTL or CMOS (2.4V to 18V).
In addition, the 300 mV of built-in hysteresis provides
noise immunity and allows the device to be driven from
slow rising or falling waveforms.
The TC4423A/TC4424A/TC4425A dual-output 3A
MOSFET driver family is offerd with a -40
temperature rating, making it useful in any wide
temperature range application.
1
2
3
4
5
6
7
8
TC4423A
TC4424A
TC4425A
.
)
16
15
14
13
12
11
10
9
TC4423A TC4424A TC4425A
NC
OUT A
OUT A
V
V
OUT B
OUT B
NC
DD
DD
devices
NC
OUT A
OUT A
V
V
OUT B
OUT B
NC
DD
DD
DS21998B-page 1
o
C to +125
NC
OUT A
OUT A
V
V
OUT B
OUT B
NC
are
DD
DD
pin-
o
C
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