Datasheet

 2002-2012 Microchip Technology Inc. DS21416D-page 7
TC429
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 (V
DD
)
The V
DD
input is the bias supply for the MOSFET driver
and is rated for 7.0V to 18V with respect to the ground
pin. The V
DD
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 value of 1.0 µF is suggested.
3.2 Control Input (INPUT)
The MOSFET driver input is a high-impedance,
TTL/CMOS compatible input. The input also has
300 mV of hysteresis between the high and low thresh-
olds that prevents output glitching even when the rise
and fall time of the input signal is very slow.
3.3 CMOS Push-Pull Output
(
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.
3.4 Ground (GND)
The ground pins are the return path for the bias current
and for 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.
3.5 No Connect (NC)
No connection.
Pin No. Symbol Description
1V
DD
Supply input, 7V to 18V
2 INPUT Control input. TTL/CMOS compatible logic input
3 NC No connection
4 GND Ground
5 GND Ground
6OUTPUT
CMOS push-pull output, common to pin 7
7OUTPUTCMOS push-pull output, common to pin 6
8V
DD
Supply input, 7V to 18V