MCP1402T-ESLASHOT datasheet(9/20 Pages) MICROCHIP

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DS20002052D-page 9

MCP1401/02

3.0

PIN DESCRIPTIONS

The description of the pins are listed in Table 3-1.

3.1

Supply Input (VDD)

VDD is the bias supply input for the MOSFET driver and

has a voltage range of 4.5V to 18V. This input must be

decoupled to ground with a local capacitor. This bypass

capacitor provides a localized low-impedance path for

the peak currents that are to be provided to the load.

3.2

Control Input (IN)

The MOSFET driver input is a high-impedance, TTL/

CMOS-compatible input. The input also has hysteresis

between the high and low input levels, allowing them to

be driven from slow rising and falling signals and to

provide noise immunity.

3.3

Ground (GND)

Ground is the Device Return pin. The Ground pin

should have a low-impedance connection to the bias

supply source return. High peak currents will flow out

the Ground pin when the capacitive load is being

discharged.

3.4

Output (OUT, OUT)

The output is a CMOS push-pull output that is capable

of sourcing and sinking 0.5A

of peak current

(VDD = 18V). The low output impedance ensures the

gate of the external MOSFET will stay in the intended

state even during large transients. This output also has

a reverse current latch-up rating of 0.5A.

TABLE 3-1:

PIN FUNCTION TABLE(1)

Pin No.

MCP1401

MCP1402

Description

1GND

GND

Ground

2VDD

VDD

Supply Input

Control Input

4GND

GND

Ground

5OUT

OUT

Output

Note 1:

Duplicate pins must be connected for proper operation.

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