TC4426A_13 Datasheet, PDF (1/20 Pages) Microchip Technology – 1.5A Dual High-Speed Power MOSFET Drivers

TC4426A/TC4427A/TC4428A
1.5A Dual High-Speed Power MOSFET Drivers
Features:
• High Peak Output Current – 1.5A
• Wide Input Supply Voltage Operating Range:
- 4.5V to 18V
• High Capacitive Load Drive Capability – 1000 pF
in 25 ns (typ.)
• Short Delay Times – 30 ns (typ.)
• Matched Rise, Fall and Delay Times
• Low Supply Current:
- With Logic ‘1’ Input – 1 mA (typ.)
- With Logic ‘0’ Input – 100 A (typ.)
• Low Output Impedance – 7(typ.)
• Latch-Up Protected: Will Withstand 0.5A Reverse
Current
• Input Will Withstand Negative Inputs Up to 5V
• ESD Protected – 4 kV
• Pin-compatible with TC426/TC427/TC428 and
TC4426/TC4427/TC4428
• Space-saving 8-Pin MSOP and 8-Pin 6x5 DFN
Packages
Applications:
• Switch Mode Power Supplies
• Line Drivers
• Pulse Transformer Drive
General Description:
The TC4426A/TC4427A/TC4428A are improved
versions of the earlier TC4426/TC4427/TC4428 family
of MOSFET drivers. In addition to matched rise and fall
times, the TC4426A/TC4427A/TC4428A devices have
matched leading and falling edge propagation delay
times.
These devices are highly latch-up resistant under any
conditions within their power and voltage ratings. They
are not subject to damage when up to 5V of noise
spiking (of either polarity) occurs on the ground pin.
They can accept, without damage or logic upset, up to
500 mA of reverse current (of either polarity) being
forced back into their outputs. All terminals are fully
protected against Electrostatic Discharge (ESD) up to
4 kV.
The TC4426A/TC4427A/TC4428A MOSFET drivers
can easily charge/discharge 1000 pF gate
capacitances in under 30 ns. These devices 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.
Package Types
8-Pin MSOP/
PDIP/SOIC TC4426A TC4427A TC4428A
NC 1
8 NC
IN A 2 TC4426A 7 OUT A
GND 3 ^TC4427A 6 V_DD
IN B 4 ^TC4428A 5 OUT B
NC
OUT A
V_DD
OUT B
NC
OUT A
V_DD
OUT B
8-Pin DFN⁽¹⁾ TC4426A TC4427A TC4428A
NC ¹
IN A ²
GND ³
IN B ⁴
8 NC
TC4426A _{7 OUT A}
TC4427A
TC4428A ^{6 V}DD
5 _{OUT B}
NC
OUT A
V_DD
OUT B
NC
OUT A
V_DD
OUT B
Note 1: Exposed pad of the DFN package is electrically isolated.
 2002-2012 Microchip Technology Inc.
DS21423G-page 1