Semiconductor NCP361, NCV361 User manual

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
over−voltage 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 ESD−protected input (15 kV Air) when
bypassed with a 1 mF or larger capacitor.

Features

• Overvoltage Protection up to 20 V

• On−chip PMOS Transistor

• Overvoltage Lockout (OVLO)

• Undervoltage Lockout (UVLO)

• Overcurrent Protection

• Alert FLAG Output

• EN Enable Pin

• Thermal Shutdown

• Compliance to IEC61000−4−2 (Level 4)

8 kV (Contact)
15 kV (Air)

• ESD Ratings: Machine Model = B

ESD Ratings: Human Body Model = 2

• UDFN6 2x2 mm and TSOP−5 3x3 mm Packages

• NCV Prefix for Automotive and Other Applications Requiring

Unique Site and Control Change Requirements; AEC−Q100
Qualified and PPAP Capable

• This is a Pb−Free Device

Applications

• USB Devices

• Mobile Phones

• Peripheral

• Personal Digital Applications

• MP3 Players

• Set Top Boxes

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MARKING

DIAGRAMS

6 PIN UDFN

CASE 517AB

5

1

TSOP−5

CASE 483

xxx = Specific Device Code
M = Date Code
A = Assembly Location
Y = Year
W = Work Week
G = Pb−Free Package
(Note: Microdot may be in either location)

PIN CONNECTIONS

1

GND

2

IN

3

UDFN

IN

1

GND

2

EN

3

TSOP−5

(Top View)

ORDERING INFORMATION

See detailed ordering and shipping information in the package
dimensions section on page 10 of this data sheet.

1

xxx AYWG

1

6

5

4

5

4

xx M

G

G

FLAGEN

OUT

OUT

OUT

FLAG

© Semiconductor Components Industries, LLC, 2012

February, 2019 − Rev. 5

1 Publication Order Number:

NCP361/D

NCP361, NCV361

INPUT

EN

1 mF 25 V X5R 0603

LDO V

INPUT

34

IN

C1

EN

OUT
OUT

NCP361

FLAG

GND

2

5

61

OUTPUT

1 mF 25 V X5R 0603

C2

FLAG

Figure 1. Typical Application Circuit (UDFN Pinout)

Thermal Shutdown

REF

Soft Start

UVLO
OVLO

FLAG Power

R1
1M

2
1

FLAG_State

J2

OUTPUT

(2 out pins in
UDFN package)

FLAGV

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

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,

4, 5 OUT OUTPUT Output Voltage Pin. The output is disconnected from the VBUS power supply when the input voltage is

6 FLAG OUTPUT Fault Indication Pin. This pin allows an external system to detect a fault on VBUS pin. The FLAG pin

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.

must be connected between this pin and GND.

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.

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 (TSOP−5 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,

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

4 FLAG OUTPUT Fault Indication Pin. This pin allows an external system to detect a fault on VBUS pin. The FLAG pin

5 OUT OUTPUT Output Voltage Pin. The output is disconnected from the VBUS power supply when the input voltage is

must be connected between this pin and GND.

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.

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.

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

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NCP361, NCV361

MAXIMUM RATINGS

Rating Symbol Value Unit

Minimum Voltage (IN to GND) Vmin

in

Minimum Voltage (All others to GND) Vmin −0.3 V

Maximum Voltage (IN to GND) Vmax

in

Maximum Voltage (All others to GND) Vmax 7.0 V

Maximum DC Current from Vin to Vout (PMOS) (Note 1) Imax 600 mA

Thermal Resistance, Junction−to−Air TSOP−5

R

q

JA

UDFN

Operating Ambient Temperature Range T

Storage Temperature Range T

Junction Operating Temperature T

ESD Withstand Voltage (IEC 61000−4−2)

A

stg

J

Vesd 15 Air, 8.0 Contact
Human Body Model (HBM), Model = 2 (Note 2)
Machine Model (MM) Model = B (Note 3)

Moisture Sensitivity MSL Level 1 −

Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.

1. With minimum PCB area. By decreasing R

2. Human Body Model, 100 pF discharged through a 1.5 kW resistor following specification JESD22/A114.

, the current capability increases. See PCB recommendation page 9.

q

JA

3. Machine Model, 200 pF discharged through all pins following specification JESD22/A115.

−0.3 V

21 V

305

°C/W

240

−40 to +85 °C

−65 to +150 °C

150 °C

kV

2000

200

V
V

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NCP361, NCV361

ELECTRICAL CHARACTERISTICS

(Min/Max limits values (−40°C < T

Characteristic Symbol Conditions Min Typ Max Unit

Input Voltage Range V

Undervoltage Lockout Threshold UVLO Vin falls down UVLO threshold 2.85 3.0 3.15 V

Uvervoltage Lockout Hysteresis UVLO

Overvoltage Lockout Threshold OVLO Vin rises up OVLO threshold 5.43 5.675 5.9 V

Overvoltage Lockout Hysteresis OVLO

Vin versus V

Dopout V

out

Overcurrent Limit I

Supply Quiescent Current Idd No Load, Vin = 5.25 V 20 35 mA

Standby Current I

Zero Gate Voltage Drain Current

FLAG Output Low Voltage

FLAG Leakage Current

EN Voltage High V

EN Voltage Low V

EN Leakage Current

TIMINGS

Start Up Delay t

FLAG going up Delay

Output Turn Off Time t

Alert Delay t

Disable Time t

Thermal Shutdown Temperature T

Thermal Shutdown Hysteresis T

< +85°C) and Vin = +5.0 V. Typical values are TA = +25°C, unless otherwise noted.)

A

1.2 20 V

50 70 90 mV

50 100 125 mV

Vol

I

DSS

in

drop

lim

std

flag

hyst

hyst

Vin = 5 V, I charge = 500 mA 150 200 mV

Vin = 5 V 550 750 950 mA

Vin = 5 V, EN = 1.2 V 26 37 mA

VDS = 20 V, VGS = 0 V 0.08 mA

Vin > OVLO

Sink 1 mA on FLAG pin

FLAG

EN

t

start

on

off

leak

ih

il

leak

From Vin > UVLO to V

From Vin > UVLO to FLAG = 1.2 V, See Fig 3 & 10 3.0 ms

From Vin > OVLO to V

FLAG level = 5 V 5.0 nA

Vin from 3.3 V to 5.5 V 1.2 V

Vin from 3.3 V to 5.5 V 0.55 V

EN = 5.5 V or GND 170 nA

= 0.8xVin, See Fig 3 & 9 4.0 15 ms

out

≤ 0.3 V, See Fig 4 & 11

out

Vin increasing from 5 V to 8 V at 3 V/ms.

No output capacitor.

stop

From Vin > OVLO to FLAG ≤ 0.4 V, See Fig 4 & 12

Vin increasing from 5 V to 8 V at 3 V/ms

dis

From EN 0.4 to 1.2V to V

≤ 0.3 V, See Fig 5 & 13

out

Vin = 4.75 V.

No output capacitor.

sd

sdhyst

400 mV

0.7 1.5 ms

1.0 ms

3.0 ms

150 °C

30 °C

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