TPD1033F

2006-10-31

2

Block Diagram

Pin Description

Pin No.

Symbol

Function

1

IN

Input pin.

Input is CMOS-compatible, with pull-down resistor connected.

Even if the input is open, output will not accidentally turn on.

2

DIAG

Self-diagnosis detection pin. Goes low when overheating is detected or when output is short-circuited with

input on (high).

n-channel open drain.

3

GND

Ground pin.

4

Power pin.

5, 6, 7

OUT

Output pin.

When the load is short-circuited and current in excess of the detection current (8 A typ.) flows to the

output pin, the output automatically turns on or off.