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ON Semiconductor - Adjustable Current-Limiting Power-Distribution Switches

Numéro de référence NCP383
Description Adjustable Current-Limiting Power-Distribution Switches
Fabricant ON Semiconductor 
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NCP383 fiche technique
NCP383
Adjustable Current-Limiting
Power-Distribution
Switches
The NCP383 is a single input dual outputs powerdistribution
switch designed for applications where heavy capacitive loads and
shortcircuits are likely to be encountered, incorporating two very low
RDS(on), Nchannel MOSFETs in a single package. Each channel of
the device limits the output current to a desired level by switching into
a constantcurrent mode when the output load exceeds the
currentlimit threshold or a short circuit is present. The currentlimit
threshold is externally fixed by a pull down resistor placed between
Ilim and GND. The powerswitches rise and fall times are controlled to
minimize current ringing during turn on/off.
An internal reversevoltage detection comparator disables the
powerswitch if the output voltage is higher than the input voltage to
protect devices on the input side of the switches.
The /FLAGx logic output asserts low during overcurrent,
reversevoltage or over temperature conditions. The switch is
controlled by a logic enable input active low.
Features
2.7 V – 5.5 V Operating Range
Current limit: Adjustable up to 2.8 A
± 7.5% Current Limit Accuracy at 2.8 A
Very fast OverCurrent Detection Response: 2 ms (typ)
1 mA Maximum Standby Supply Current
Under Voltage Lockout (UVLO)
SoftStart Prevents Inrush Current
Thermal Protection
Soft Turnoff
Reverse Voltage Protection
Enable Active Low
mDFN 3x3 mm
Compliance to IEC6100042 (Level 4)
8.0 kV (Contact) 15 kV (Air)
UL Listed – File E343275
CB IEC60950ED2 Certified
CB – IEC60950ED2AM1 Certified
This is a PbFree Device
Typical Applications
Laptops
USB Ports/Hubs
TVs
http://onsemi.com
UDFN10
CASE 517CC
MARKING
DIAGRAM
383
ALYWG
G
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
G = PbFree Package
(*Note: Microdot may be in either location)
PIN CONNECTIONS
GND 1
IN 2
IN 3
EN1 4
EN2 5
10 /FLAG1
9 OUT1
8 OUT2
7 ILIM
6 /FLAG2
(Top View)
Exposed pad must be soldered to PCB Ground plane.
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 9 of this data sheet.
© Semiconductor Components Industries, LLC, 2012
October, 2012 Rev. 2
1
Publication Order Number:
NCP383/D

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