NCP380, NCV380
http://onsemi.com
2
Figure 1. Typical Application Circuit
*For Adjustable Version Only.
IN
GND
USB INPUT
5 V
FLAG
EN
R
fault
100 kW
1 mF
FLAG
EN
NCP380
OUT
ILIM*
USB
DATA
USB
Port
D+
D
VBUS
GND
R
lim
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
TSOP5
1
2
3
6
4
OUT
ILIM*
5
FLAG
IN
GND
EN
TSOP6
*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
External resistor used to set current-limit threshold; recommended 5 kW < R
ILIM
< 250 kW.
PAD1**
THERMAL
Exposed Thermal Pad: Must be soldered to PCB Ground plane
*(For adjustable version only, otherwise not connected.
**For DFN version only.
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