TC4427AEPA Microchip Technology Inc., TC4427AEPA Datasheet - Page 8

• Manufacturer Part Number: TC4427AEPA
• Description: Driver, MOSFET, 1.5A Dual, PDIP-8, I-Temp
• Manufacturer: Microchip Technology Inc.

Specifications of TC4427AEPA

• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

TC4426A/TC4427A/TC4428A
3.0
The descriptions of the pins are listed in Table 3-1.
TABLE 3-1:
3.1
MOSFET driver inputs A and B are high-impedance,
TTL/CMOS compatible inputs. These inputs also have
300 mV of hysteresis between the high and low
thresholds that prevents output glitching, even when
the rise and fall time of the input signal is very slow.
3.2
The ground pin is the return path for both the bias
current and the high peak current that discharges the
external load capacitance. The ground pin should be
tied into a ground plane or have a very short trace to the
bias supply source return.
3.3
MOSFET driver outputs A and B are low-impedance,
CMOS push-pull style outputs. The pull-down and pull-
up devices are of equal strength, making the rise and
fall times equivalent.
DS21423F-page 8
Note 1:
MSOP/SOIC
8-Pin PDIP/
—
1
2
3
4
5
6
7
8
PIN DESCRIPTIONS
Inputs A and B
Ground (GND)
Output A and B
Duplicate pins must be connected for proper operation.
PIN FUNCTION TABLE
8-Pin
DFN
PAD
1
2
3
4
5
6
7
8
Symbol
OUT B
OUT A
GND
IN A
IN B
V
NC
NC
NC
DD
No connection
Input A
Ground
Input B
Output B
Supply input
Output A
No connection
Exposed Metal Pad
3.4
The V
and is rated for 4.5V to 18V, with respect to the ground
pin. The V
ceramic capacitors. The value of these capacitors
should be chosen based on the capacitive load that is
being driven.
3.5
The exposed metal pad of the 6x5 DFN package is not
internally connected to any potential. Therefore, this
pad can be connected to a ground plane or other
copper plane on a printed circuit board, to aid in heat
removal from the package.
DD
Supply Input (V
input is the bias supply for the MOSFET driver
Exposed Metal Pad
DD
Description
input should be bypassed with local
© 2006 Microchip Technology Inc.
DD
)