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  ON Semiconductor Electronic Components Datasheet  

NCP361 Datasheet

USB Positive Overvoltage Protection Controller

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NCP361, NCV361
USB Positive Overvoltage
Protection Controller with
Internal PMOS FET and
Overcurrent Protection
The NCP361 disconnects systems at its output when wrong VBUS
operating conditions are detected at its input. The system is positive
overvoltage protected up to +20 V.
Thanks to an integrated PMOS FET, no external device is
necessary, reducing the system cost and the PCB area of the
application board.
The NCP361 is able to instantaneously disconnect the output from
the input if the input voltage exceeds the overvoltage threshold
(5.675 V). Thanks to an overcurrent protection, the integrated PMOS
is turning off when the charge current exceeds current limit (see
options in ordering information).
The NCP361 provides a negative going flag (FLAG) output, which
alerts the system that voltage, current or overtemperature faults have
occurred.
In addition, the device has ESDprotected input (15 kV Air) when
bypassed with a 1 mF or larger capacitor.
Features
Overvoltage Protection up to 20 V
Onchip PMOS Transistor
Overvoltage Lockout (OVLO)
Undervoltage Lockout (UVLO)
Overcurrent Protection
Alert FLAG Output
EN Enable Pin
Thermal Shutdown
Compliance to IEC6100042 (Level 4)
8 kV (Contact)
15 kV (Air)
ESD Ratings: Machine Model = B
ESD Ratings: Human Body Model = 2
UDFN6 2x2 mm and TSOP5 3x3 mm Packages
NCV Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements; AECQ100
Qualified and PPAP Capable
This is a PbFree Device
Applications
USB Devices
Mobile Phones
Peripheral
Personal Digital Applications
MP3 Players
Set Top Boxes
www.onsemi.com
6 PIN UDFN
CASE 517AB
MARKING
DIAGRAMS
1 xx M
G
5
1
TSOP5
CASE 483
xxx AYWG
G
1
xxx = Specific Device Code
M = Date Code
A = Assembly Location
Y = Year
W = Work Week
G = PbFree Package
(Note: Microdot may be in either location)
PIN CONNECTIONS
EN 1
6 FLAG
GND 2
IN 3
UDFN
5 OUT
4 OUT
IN 1
5 OUT
GND 2
EN 3
4 FLAG
TSOP5
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 10 of this data sheet.
© Semiconductor Components Industries, LLC, 2012
February, 2019 Rev. 5
1
Publication Order Number:
NCP361/D


  ON Semiconductor Electronic Components Datasheet  

NCP361 Datasheet

USB Positive Overvoltage Protection Controller

No Preview Available !

NCP361, NCV361
INPUT
OUTPUT
1 mF 25 V X5R 0603
3 IN
OUT
OUT
4
5
C1 NCP361 C2
1 EN FLAG
GND
2
6
FLAG Power
1 mF 25 V X5R 0603
FLAG
R1
1M
J2
2
1
Figure 1. Typical Application Circuit (UDFN Pinout)
FLAG_State
INPUT
EN
Thermal Shutdown
Soft Start
OUTPUT
(2 out pins in
UDFN package)
FLAGV
LDO
VREF
UVLO
OVLO
Figure 2. Functional Block Diagram
PIN FUNCTION DESCRIPTION (UDFN Package)
Pin No. Name
Type
Description
1 EN INPUT Enable Pin. The device enters in shutdown mode when this pin is tied to a high level. In this case the
output is disconnected from the input. To allow normal functionality, the EN pin shall be connected to
GND or to a I/O pin. This pin does not have an impact on the fault detection.
2 GND POWER Ground
3 IN POWER Input Voltage Pin. This pin is connected to the VBUS. A 1 mF low ESR ceramic capacitor, or larger,
must be connected between this pin and GND.
4, 5 OUT OUTPUT Output Voltage Pin. The output is disconnected from the VBUS power supply when the input voltage is
above OVLO threshold or below UVLO threshold. A 1 mF capacitor must be connected to these pins.
The two OUT pins must be hardwired to common supply.
6 FLAG OUTPUT Fault Indication Pin. This pin allows an external system to detect a fault on VBUS pin. The FLAG pin
goes low when input voltage exceeds OVLO threshold. Since the FLAG pin is open drain functionality,
an external pull up resistor to VCC must be added.
PIN FUNCTION DESCRIPTION (TSOP5 Package)
Pin No. Name
Type
Description
1 IN POWER Input Voltage Pin. This pin is connected to the VBUS. A 1 mF low ESR ceramic capacitor, or larger,
must be connected between this pin and GND.
2 GND POWER Ground
3 EN INPUT Enable Pin. The device enters in shutdown mode when this pin is tied to a high level. In this case the
output is disconnected from the input. To allow normal functionality, the EN pin shall be connected to
GND or to a I/O pin. This pin does not have an impact on the fault detection.
4 FLAG OUTPUT Fault Indication Pin. This pin allows an external system to detect a fault on VBUS pin. The FLAG pin
goes low when input voltage exceeds OVLO threshold. Since the FLAG pin is open drain functionality,
an external pull up resistor to VCC must be added.
5 OUT OUTPUT Output Voltage Pin. The output is disconnected from the VBUS power supply when the input voltage is
above OVLO threshold or below UVLO threshold. A 1 mF capacitor must be connected to this pin.
NOTE: Pin out provided for concept purpose only and might change in the final product
www.onsemi.com
2


Part Number NCP361
Description USB Positive Overvoltage Protection Controller
Maker ON Semiconductor
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NCP361 Datasheet PDF






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