TPD1038F

2006-10-31

2

Block Diagram

Pin Description

Pin No.

Symbol

Function

1

OUT

Output pin. When the load is short-circuited and current in excess of the detection current (3A min)

flows to the output pin, the output automatically turns on or off.

2

GND

Ground pin.

3

DIAG

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

with input on (high). N-channel open drain.

4

IN

Input pin. Input is CMOS compatible, with pull down resistor connected. Even if the input is open,

output will not accidentally turn on.

5,6,7,8

Power pin.

OUT

5V regulator

Bandgap

MOSFET

(π-MOSⅤ)

charge pump

driver

current detection

overheat detection

DIAG

GND

IN