NCP367
Battery Charge Front-End
Protection, USB and AC/DC
Supply Compliant
NCP367 is a charge path protection device which allows
disconnecting the systems from its output pin in case wrong charging
conditions are detected. The system is positive overvoltage protected
up to +30 V. Thanks to a very low current consumption, the USB
charge is compatible with this integrated component.
This device uses internal PMOS FET, making external devices
unnecessary, which reduces the system cost and PCB area of the
application board. First, NCP367 is able to instantaneously
disconnect the output from the input if the input voltage exceeds the
overvoltage threshold. Additional overcurrent protection function
allows turning off internal PMOS FET when the charge current
exceeds current limit, which is externally selectable.
The current limit value can be modified with control logic pin to
divide it by internal gain, allowing USB 100 mA/500 mA charging or
USB/Wall adapter charging up to overcurrent threshold. At the same
time, Li ion Battery voltage is continuously monitored, providing
more safety during the charge. Thermal shutdown protection is also
available.
NCP367 provides a negative going flag (FLAG) output, which
alerts the system that a fault has occurred as overvoltage (power
supply or battery voltage), overcurrent or thermal event.
In addition, the device has ESD−protected input (15 kV Air) when
bypassed with a 1
mF
or larger capacitor.
Features
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8
1
DFN8
MU SUFFIX
CASE 506BP
MARKING DIAGRAM
1
XX MG
G
XX = Specific Device Code
M = Date Code
G
= Pb−Free Device
(Note: Microdot may be in either location)
PIN ASSIGNMENT
IN
1
8
GND
•
•
•
•
•
•
•
•
•
•
•
•
7
FLAG
VBAT
2
Overvoltage Protection Up to + 30 V
OUT
Fast Turn Off Time
NC
3
6
GS
Very Low Current Consumption/USB Compliant
5
EN
ILIM
4
Li ion Battery Voltage Monitoring
(Top View)
Overvoltage Lockout (OVLO)
Undervoltage Lockout (UVLO)
Overcurrent Protection Externally Adjustable (OCP) up to 2.8 A
ORDERING INFORMATION
See detailed ordering, marking and shipping information in the
Thermal Shutdown
package dimensions section on page 12 of this data sheet.
Shutdown EN and Gain Input Pins
Soft−Start to Eliminate Inrush Current
Typical Application
Alert FLAG Output
•
USB Devices
Compliance to IEC61000−4−2 (Level 4)
•
Mobile Phones
8 kV (Contact), 15 kV (Air)
•
Peripheral
•
ESD Ratings: Machine Model = B
ESD Ratings:
Human Body Model = 2
•
Personal Digital Applications
•
8 Lead DFN 2.2x2 mm Package
•
MP3 Players
•
These are Pb−Free Devices
QFN−16
©
Semiconductor Components Industries, LLC, 2015
1
February, 2015 − Rev. 11
Publication Order Number:
NCP367/D
NCP367
NCP367
Wall Adapter / USB
1
mF
1
5
6
9
IN
OUT
7
EN FLAG
2
GS VBAT 4
GND ILIM
8
Battery Charger
1
mF
B+
10 k
100 k
Li+
BATTERY
MCU
DCDC
Figure 1. Typical Application Circuit
VIN/VUSB
OUT
ILIM
GS
LDO
VREF
I limit
+
GAIN
1/2.75
Soft−Start
VBAT
4.35 V
Driver
OVLO
UVLO
Logic
+
Timer
Thermal
Shutdown
FLAG
GND
EN Pin
Figure 2. Functional Block Diagram
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2
NCP367
PIN FUNCTION DESCRIPTION
Pin
1
2
3
4
Name
IN
V
BAT
NC
Type
POWER
INPUT
Description
Input Voltage Pin. This pin is connected to the power supply: Wall Adapter or USB. A 1
mF
low ESR
ceramic capacitor, or larger, must be connected between this pin and GND.
Li ion Battery voltage sense pin. A serial resistor must be placed between this pin and positive pin of
the battery pack.
Not Connected
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á Á Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á Á Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á Á Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
Á Á
OUTPUT
OUTPUT
I
LIM
Current Limit Pin. This pin provides the reference, based on the internal band−gap voltage reference, to
limit the overcurrent, across internal PMOSFET, from IN to OUT. A 1% tolerance, or better, resistor
shall be used to get the highest accuracy of the Overcurrent Limit.
Enable Mode 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. The state of this pin does not have an impact on the fault
detection of the FLAG pin.
Gain Select Pin. When the GS pin is tied to 0 level, the Overcurrent threshold is defined by Ilimit set-
ting. See logic table. When GS pin is tied to high, the Overcurrent threshold is set to Ilimit/GS
Fault Indication Pin. This pin allows an external system to detect fault condition. The FLAG pin goes
low when input voltage is below UVLO threshold, exceeds OVLO threshold, charge current from wall
adapter to battery exceeds programmed current limit, Li ion Battery voltage (4.3 V) is exceeded or in-
ternal temperature exceeds thermal shutdown limit. Since the FLAG pin is open drain functionality, an
external pull−up resistor to VBattery must be added (10 kW minimum value).
Ground.
Output Voltage Pin. This pin follows IN pin when “no input fault” is detected. The output is disconnected
from the Vin power supply when voltage, current or thermal fault events are detected. A 1
mF
low ESR
ceramic capacitor, or larger, must be connected between this pin and GND.
5
EN
INPUT
6
7
GS
FLAG
INPUT
OUTPUT
8
9
GND
OUT
POWER
OUTPUT
NOTE:
Pin out provided for concept purpose only and might change in the final product
MAXIMUM RATINGS
Rating
Minimum Voltage (IN to GND)
Minimum Voltage (All others to GND)
Maximum Voltage (IN to GND)
Maximum Voltage (All others to GND)
Maximum DC Current from Vin to Vout (PMOS)
Thermal Resistance, Junction−to−Air (without PCB area)
Operating Ambient Temperature Range
Storage Temperature Range
Junction Operating Temperature
ESD Withstand Voltage (IEC 61000−4−2)
Human Body Model (HBM), Model = 2 (Note 1)
Machine Model (MM) Model = B (Note 2)
Latchup
Moisture Sensitivity
Symbol
Vmin
in
Vmin
Vmax
in
Vmax
Imax
R
qJA
T
A
T
stg
T
J
Vesd
Value
−0.3
−0.3
30
7.0
3.4
190
−40 to +85
−65 to +150
150
15 Air, 8.0 Contact
2000
200
Class 1
Level 1
Unit
V
V
V
V
A
°C/W
°C
°C
°C
kV
V
V
−
−
LU
MSL
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. Human Body Model, 100 pF discharged through a 1.5 kW resistor following specification JESD22/A114.
2. Machine Model, 200 pF discharged through all pins following specification JESD22/A115.
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3
NCP367
ELECTRICAL CHARACTERISTICS − NCP367OPMUEA
(Min/Max limits values (−40°C < T
A
< +85°C) and V
in
= +3.5 V. Typical values are T
A
= +25°C, unless otherwise noted.)
Characteristic
Input Voltage Range
Undervoltage Lockout Threshold
Undervoltage Lockout
Hysteresis
Overvoltage Lockout Threshold
NCP367OPMUEA
Overvoltage Lockout Hysteresis
Vin versus Vout Resistance
Supply Quiescent Current
Disable Mode
Overcurrent Threshold
NCP367OPMUEA
Overcurrent Response
Current Limit Gain
NCP367OPMUEA
Battery Overvoltage Threshold
Battery Overvoltage Hysteresis
V
BAT
Pin Leakage
V
BAT
Deglitch Time
FLAG Output Low Voltage
FLAG Leakage Current
EN Voltage High
EN Voltage Low
EN Leakage Current
GS Voltage High
GS Voltage Low
GS Leakage Current
TIMINGS
Start Up Delay
FLAG going up Delay
Rearming Delay
Overcurrent Regulation Time
Output Turn Off Time
Alert Delay
Disable Time
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
NOTE:
t
on
t
start
t
REARM
t
REG
t
off
t
stop
t
dis
T
sd
Tsd
hyst
From V
in
> UVLO to V
out
= 0.8xV
in
From V
out
> 0.2xV
in
to FLAG = 1.2 V
OCP Active
OCP Active
From V
in
> OVLO to V
out
≤
0.3 V, V
in
increasing
from 3.5 V to 6.5 V at 3 V/ms.
From V
in
> OVLO to FLAG
≤
0.4 V, (see Figure 16)
V
in
increasing from 3.5 V to 6.5 V at 3 V/ms
From EN 0.4 to 1.2 V to V
out
≤
0.3 V
15
15
15
1.2
30
30
30
1.8
1.5
1.5
3.0
150
30
45
45
45
3.0
5.0
ms
ms
ms
ms
ms
ms
ms
°C
°C
Symbol
V
in
UVLO
UVLO
hyst
OVLO
OVLO
hyst
R
DS(on)
Idd
Idd
dis
I
OCP
I
reg
GS
value
OV
BAT
OV
HYS
VBAT
LEAK
VBAT
DEG
Vol
flag
FLAG
leak
V
ih
V
il
EN
leak
V
ih
V
il
GS
leak
200
1.2
0.4
200
V
BAT
> OV
BAT
V
in
> OVLO
Sink 1 mA on FLAG pin
FLAG level = 5 V
1.2
0.4
10
0.2
2.0
Enable Mode, Load Connected to V
out
No Load
EN = 1.2 V
EN = low, Load Connected to V
out
,,
R
ilim
= 0
W,
1 A/ms, GS = 0.4 V
1 A/ms, GS = low, I
lim
= 1.51 A
GS = 1.2 V
2.55
0°C to 85°C
0°C to 85°C
4.3
100
4.35
150
4.4
200
20
4.0
400
V
mV
nA
ms
mV
nA
V
V
nA
V
V
nA
2.30
V
in
rises up OVLO threshold
3.65
3.8
45
50
42
35
2.85
5.0
3.95
150
100
130
110
3.40
%
mV
mW
mA
mA
A
V
in
falls down UVLO threshold
Conditions
Min
1.2
1.75
1.85
60
Typ
Max
28
1.9
100
Unit
V
V
mV
V
Electrical parameters are guaranteed by correlation across the full range of temperature.
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NCP367
ELECTRICAL CHARACTERISTICS − NCP367DPMUEB
(Min/Max limits values (−40°C < T
A
< +85°C) and V
in
= +4.0 V. Typical values are T
A
= +25°C, unless otherwise noted.)
Characteristic
Input Voltage Range
Undervoltage Lockout Threshold
Undervoltage Lockout
Hysteresis
Overvoltage Lockout Threshold
NCP367DPMUEB
Overvoltage Lockout Hysteresis
Vin versus Vout Resistance
Supply Quiescent Current
Disable Mode
Overcurrent Threshold
NCP367DPMUEB
Overcurrent Response
Current Limit Gain
NCP367DPMUEB
Battery Overvoltage Threshold
Battery Overvoltage Hysteresis
V
BAT
Pin Leakage
V
BAT
Deglitch Time
FLAG Output Low Voltage
FLAG Leakage Current
EN Voltage High
EN Voltage Low
EN Leakage Current
GS Voltage High
GS Voltage Low
GS Leakage Current
TIMINGS
Start Up Delay
FLAG going up Delay
Rearming Delay
Overcurrent Regulation Time
Output Turn Off Time
Alert Delay
Disable Time
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
NOTE:
t
on
t
start
t
REARM
t
REG
t
off
t
stop
t
dis
T
sd
Tsd
hyst
From V
in
> UVLO to V
out
= 0.8xV
in
From V
out
> 0.2xV
in
to FLAG = 1.2 V
OCP Active
OCP Active
From V
in
> OVLO to V
out
≤
0.3 V, V
in
increasing
from 4 V to 7 V at 3 V/ms.
From V
in
> OVLO to FLAG
≤
0.4 V, (see Figure 16)
V
in
increasing from 4 V to 7 V at 3 V/ms
From EN 0.4 to 1.2 V to V
out
≤
0.3 V
15
15
15
1.2
30
30
30
1.8
1.5
1.5
3.0
150
30
45
45
45
3.0
5.0
ms
ms
ms
ms
ms
ms
ms
°C
°C
Symbol
V
in
UVLO
UVLO
hyst
OVLO
OVLO
hyst
R
DS(on)
Idd
Idd
dis
I
OCP
I
reg
GS
value
OV
BAT
OV
HYS
VBAT
LEAK
VBAT
DEG
Vol
flag
FLAG
leak
V
ih
V
il
EN
leak
V
ih
V
il
GS
leak
200
1.2
0.4
200
V
in
= 5 V, Enable Mode, Load Connected to V
out
No Load
EN = 1.2 V
V
in
= 4.3 V, EN = low, Load Connected to V
out
,,
R
ilim
= 0
W,
1 A/ms, GS = 0.4 V
1 A/ms, GS = low, I
lim
= 1.51 A
GS = 1.2 V
2.77
V
in
= 4.2 V, 0°C to 85°C
V
in
= 4.2 V, 0°C to 85°C
V
in
= 4.0 V,
V
BAT
> OV
BAT
V
in
> OVLO
Sink 1 mA on FLAG pin
FLAG level = 5 V
1.2
0.4
10
0.2
2.0
4.3
100
4.35
160
4.4
200
20
4.0
400
V
mV
nA
ms
mV
nA
V
V
nA
V
V
nA
1.25
V
in
rises up OVLO threshold
4.38
4.54
45
50
42
35
1.45
5.0
4.7
100
100
130
110
1.80
%
mV
mW
mA
mA
A
V
in
falls down UVLO threshold
Conditions
Min
1.2
1.75
1.85
60
Typ
Max
28
1.9
100
Unit
V
V
mV
V
Electrical parameters are guaranteed by correlation across the full range of temperature.
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