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TC4423A

更新时间： 2024-11-09 04:49:43
品牌 Logo 应用领域
美国微芯 - MICROCHIP 驱动器
页数 文件大小 规格书
22页 756K
描述
3A Dual High-Speed Power MOSFET Drivers

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TC4423A 数据手册

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TC4423A/TC4424A/TC4425A  
3A Dual High-Speed Power MOSFET Drivers  
General Description  
Features  
• High Peak Output Current: 4.5A (typical)  
• Wide Input Supply Voltage Operating Range:  
- 4.5V to 18V  
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 devices are pin-  
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.  
• High Capacitive Load Drive Capability:  
- 1800 pF in 12 ns  
• Short Delay Times: 40 ns (typical)  
• Matched Rise/Fall Times  
• Low Supply Current:  
- With Logic ‘1’ Input – 1.0 mA (maximum)  
- With Logic ‘0’ Input – 150 µA (maximum)  
• Low Output Impedance: 2.5Ω (typical)  
• Latch-Up Protected: Will Withstand 1.5A Reverse  
Current  
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.  
• Logic Input Will Withstand Negative Swing Up To  
5V  
• Pin compatible with the TC4423/TC4424/TC4425  
and TC4426A/TC4427A/TC4428A devices  
• Space-saving 8-Pin 150 mil body SOIC and 8-Pin  
6x5 DFN Packages  
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.  
Applications  
• Switch Mode Power Supplies  
• Pulse Transformer Drive  
• Line Drivers  
The TC4423A/TC4424A/TC4425A dual-output 3A  
MOSFET driver family is offerd with a -40oC to +125oC  
temperature rating, making it useful in any wide  
temperature range application.  
• Direct Drive of Small DC Motors  
Package Types  
8-Pin PDIP/SOIC TC4423A TC4424A TC4425A  
TC4423A TC4424A TC4425A  
16-Pin SOIC (Wide  
)
1
2
3
4
5
6
7
8
16  
15  
14  
13  
NC  
NC  
IN A  
NC  
GND  
GND  
NC  
NC  
NC  
NC  
NC  
8
7
6
5
NC  
NC  
1
OUT A  
OUT A  
VDD  
OUT A  
OUT A  
VDD  
OUT A  
OUT A  
VDD  
TC4423A  
TC4424A  
TC4425A  
IN A 2  
GND 3  
IN B 4  
OUT A  
VDD  
OUT B  
OUT A  
VDD  
OUT B  
OUT A  
VDD  
OUT B  
TC4423A  
TC4424A  
TC4425A  
VDD  
VDD  
VDD  
12  
11  
10  
OUT B  
OUT B  
NC  
OUT B  
OUT B  
NC  
OUT B  
OUT B  
NC  
8-Pin 6x5 DFN (1  
)
TC4423A TC4424A TC4425A  
IN B  
NC  
9
1
8
7
6
5
NC  
NC  
NC  
NC  
TC4423A  
TC4424A  
TC4425A  
2
3
4
IN A  
GND  
IN B  
OUT A  
VDD  
OUT A  
VDD  
OUT A  
VDD  
OUT B  
OUT B  
OUT B  
Note 1: Exposed pad of the DFN package is electrically isolated.  
2: Duplicate pins must both be connected for proper operation.  
© 2007 Microchip Technology Inc.  
DS21998B-page 1  
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