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TC4429MJA датащи(PDF) 8 Page - Microchip Technology |
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TC4429MJA датащи(HTML) 8 Page - Microchip Technology |
8 / 18 page TC4420M/TC4429M DS21933A-page 8 © 2005 Microchip Technology Inc. 3.0 PIN DESCRIPTIONS The descriptions of the pins are listed in Table 3-1. TABLE 3-1: PIN FUNCTION TABLE 3.1 Supply Input (VDD) The VDD input is the bias supply for the MOSFET driver and is rated for 4.5V to 18V with respect to the ground pins. The VDD input should be bypassed to ground with a local ceramic capacitor. The value of the capacitor should be chosen based on the capacitive load that is being driven. A minimum value of 1.0 µF is suggested. 3.2 Control Input The MOSFET driver input is a high-impedance, TTL/CMOS-compatible input. The input circuitry of the TC4420M/TC4429M MOSFET driver also has a “speed-up” capacitor. This helps to decrease the propagation delay times of the driver. Because of this, input signals with slow rising or falling edges should not be used, as this can result in double-pulsing of the MOSFET driver output. 3.3 CMOS Push-Pull Output The MOSFET driver output is a low-impedance, CMOS, push-pull style output capable of driving a capacitive load with 6.0A peak currents. The MOSFET driver output is capable of withstanding 1.5A peak reverse currents of either polarity. 3.4 Ground The ground pins are the return path for the bias current and the high peak currents that discharge the load capacitor. The ground pins should be tied into a ground plane or have very short traces to the bias supply source return. Pin No. 8-Pin CERDIP Symbol Description 1VDD Supply input, 4.5V to 18V 2 INPUT Control input, TTL/CMOS compatible input 3 NC No Connection 4 GND Ground 5 GND Ground 6 OUTPUT CMOS push-pull output 7 OUTPUT CMOS push-pull output 8VDD Supply input, 4.5V to 18V |
Аналогичный номер детали - TC4429MJA |
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Аналогичное описание - TC4429MJA |
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