NCP382

http://onsemi.com

2

IN

OUT1

EN1

GND

NCP382

USB

Port

GND

D+

D−

VBUS

120 mF

USB INPUT

5V

EN1

FLAG1

USB

DATA

EN2

EN2

FLAG2

OUT2

USB

Port

GND

D+

D−

VBUS

120 mF

USB

DATA

Rfault

Figure 1. Typical Application Circuit

1 mF

100 kW

FLAG1

FLAG2

Figure 2. Pin Connections

GND

IN

EN1

EN2

OUT1

OUT2

FLAG1

FLAG2

GND

IN

EN1

EN2

OUT1

OUT2

FLAG1

FLAG2

DFN8

SOIC−8

1

2

3

4

8

7

6

5

8

7

6

5

1

2

3

4

(Top View)

PIN FUNCTION DESCRIPTION

Pin Name

Type

Description

EN1

I

Enable 1 input, logic low/high (i.e. EN or EN) turns on power switch.

EN2

I

Enable 2 input, logic low/high (i.e. EN or EN) turns on power switch.

GND

P

Ground connection.

IN

P

Power−switch input voltage; connect a 1 mF or greater ceramic capacitor from IN to GND as close as possible to

the IC.

FLAG1

O

Active−low open−drain output 1, asserted during overcurrent or overtemperature conditions. Connect a 10 kW or

greater resistor pull−up, otherwise leave unconnected.

FLAG2

O

Active−low open−drain output 2, asserted during overcurrent or overtemperature conditions. Connect a 10 kW or

greater resistor pull−up, otherwise leave unconnected.

OUT1

O

Power−switch output1; connect a 1 mF ceramic capacitor from OUT1 to GND, as close as possible to the IC.

This minimum value is recommended for USB requirement in terms of load transient response and strong short

circuits.

OUT2

O

Power−switch output2; connect a 1 mF ceramic capacitor from OUT2 to GND, as close as possible to the IC.

This minimum value is recommended for USB requirement in terms of load transient response and strong short

circuits.