TPD1053F

2012-01-13

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 over temperature 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

Charge pump

Driver

Over current detection

Over temperature

detection

DIAG

GND

IN

Voltage clamp