NCP380, NCV380

http://onsemi.com

2

Figure 1. Typical Application Circuit

*For Adjustable Version Only.

IN

GND

USB INPUT

5 V

FLAG

EN

100 kW

1 mF

FLAG

EN

NCP380

OUT

ILIM*

USB

DATA

USB

Port

D+

D−

VBUS

GND

120 mF

(Top view)

Figure 2. Pin Connections

1

2

3

6

5

4

OUT

ILIM*

FLAG

IN

GND

EN

PAD1

UDFN6

OUT

GND

FLAG

IN

EN

1

2

3

5

4

TSOP−5

1

2

3

6

4

OUT

ILIM*

5

FLAG

IN

GND

EN

TSOP−6

*For adjustable version only, otherwise not connected.

Table 1. PIN FUNCTION DESCRIPTION

Pin Name

Type

Description

EN

INPUT

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

GND

POWER

Ground connection;

IN

POWER

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

sible to the IC.

FLAG

OUTPUT

Active-low open-drain output, asserted during overcurrent, overtemperature or reverse-voltage conditions.

Connect a 10 kW or greater resistor pull-up, otherwise leave unconnected.

OUT

OUTPUT

Power-switch output; connect a 1 mF ceramic capacitor from OUT to GND as close as possible to the IC

is recommended. A 1 mF or greater ceramic capacitor from OUT to GND must be connected if the USB

requirement (i.e.120 mF capacitor minimum) is not met.

ILIM*

INPUT

PAD1**

THERMAL

Exposed Thermal Pad: Must be soldered to PCB Ground plane

*(For adjustable version only, otherwise not connected.

**For DFN version only.