ncp382 ON Semiconductor, ncp382 Datasheet - Page 2

• Manufacturer Part Number: ncp382
• Description: Ncp382 Fixed Current-limiting Power-distribution Switches
• Manufacturer: ON Semiconductor

PIN FUNCTION DESCRIPTION
Pin Name
FLAG1
FLAG2
OUT1
OUT2
GND
EN1
EN2
IN
Type
GND
P
P
O
O
O
O
I
I
EN1
EN2
IN
1
2
3
4
Enable 1 input, logic low/high (i.e. EN or EN) turns on power switch.
Enable 2 input, logic low/high (i.e. EN or EN) turns on power switch.
Ground connection.
Power−switch input voltage; connect a 1 mF or greater ceramic capacitor from IN to GND as close as possible to
the IC.
Active−low open−drain output 1, asserted during overcurrent or overtemperature conditions. Connect a 10 kW or
greater resistor pull−up, otherwise leave unconnected.
Active−low open−drain output 2, asserted during overcurrent or overtemperature conditions. Connect a 10 kW or
greater resistor pull−up, otherwise leave unconnected.
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.
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.
FLAG1
FLAG2
(Top View)
USB INPUT
EN1
EN2
5V
DFN8
100 kW
Rfault
8
7
6
5
Figure 1. Typical Application Circuit
OUT1
OUT2
FLAG1
FLAG2
1 mF
Figure 2. Pin Connections
http://onsemi.com
IN
EN1
EN2
FLAG1
FLAG2
NCP382
GND
2
OUT2
OUT1
GND
EN1
EN2
Description
IN
120 mF
120 mF
1
2
3
4
DATA
DATA
USB
USB
SOIC−8
VBUS
VBUS
D+
D−
GND
D+
D−
GND
USB
Port
USB
Port
8
7
6
5
FLAG1
OUT1
OUT2
FLAG2