NCP392A
Adjustable Front End
Overvoltage Protection
Controller with Protected
Vbus Output
The NCP392A is an overvoltage front end protection and be able to
disconnect the systems from its output pin in case wrong input
operating conditions are detected, up to +28 V. Due to this device
using internal NMOS, no external device is necessary, reducing the
system cost and the PCB area of the application board.
Internal OVLO threshold is available, or can be adjusted if external
resistor bridge is used (A version).
At power up (EN pin = low level), the Vout turns on tstart time after
internal timer elapsed.
A LDO, internally connected on IN pin, provided a protected output
voltage even if an over voltage is present on IN pin.
Features
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MARKING
DIAGRAM
WLCSP 12
FCC SUFFIX
CASE 567JM
A
Y
WW
G
392AR
AYWW
G
= Assembly Location
= Year
= Work Week
= Pb−Free Package
•
•
•
•
•
•
•
•
•
•
Over−voltage Protection Up to + 28 V
On−chip Low R
DS(on)
NMOS Transistors: Typical 34 mW
Over−voltage Lockout (OVLO)
Externally Adjustable OVLO
Protected VBUS Indicator Output VBUS_DET
Internal 15 ms Startup Delay
100 ms Start Up Delay Option (B Version)
Shutdown EN Input
+ 86 V Surge Capability, in Compliance with IEC61000−4−5
Compliance to IEC61000−4−2 (Level 4)
8 kV (Contact)
15 kV (Air)
•
ESD Ratings:
Machine Model = B (200 V)
Human Body Model = 2 (2 kV)
•
CSP−12 package 1.3 x 2.0 mm, 0.4 mm Pitch
•
This is a Pb−Free Device
Typical Applications
PIN CONNECTION
1
A
2
3
4
/EN
OUT
OUT
PGND
B
VBUS
_D
OUT
IN
PGND
C
OVLO
IN
IN
PGND
(Top View)
ORDERING INFORMATION
See detailed ordering, marking and shipping information on
page 9 of this data sheet.
•
•
•
•
•
Cell Phones
Tablets
Camera Phones
Digital Still Cameras
Personal Digital Applications.
©
Semiconductor Components Industries, LLC, 2015
April, 2015
−
Rev. 4
1
Publication Order Number:
NCP392A/D
NCP392A
B3 IN
0.1
mF
C2 IN
C3 IN
C1 OVLO
GND
A4
GND GND
C4
B4
EN
A1
NCP392A
OUT A2
OUT A3
OUT B2
OUTPUT
CHARGER
Lithium Battery
PMIC
VBUS_D B1
VBUS_DET
/EN
Figure 1. Typical Application Circuit: NCP392A with Adjustable OVLO
FUNCTIONAL BLOCK DIAGRAM
INPUT
OUTPUT
Gate driver
VREF
External OVLO
GND
selected
Charge
Pump
OVLO
C1
R1
OVLO
TSD
OVLO
Internal OVLO
selected
SEL
VIN
Control
logic and
Timer
C2
R2
LDO
/EN
/EN
VBUS_DET
Figure 2. Functional Block Diagram: Version A
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2
NCP392A
PIN FUNCTION DESCRIPTION
1
A
/EN
2
OUT
3
OUT
4
PGND
B
VBUS
_D
OUT
IN
PGND
C
OVLO
IN
IN
PGND
(Top View)
Figure 3. Pinout
Table 1. NCP392 PIN DESCRIPTION
Pin
A1
Pin
Name
EN
Type
I/O
Description
Enable pin bar.
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 is tied low with internal pull down.
This pin does not have an impact on the VBUS_DET.
Output voltage pins.
These pins follow IN pins, with debounce time, when “no fault” are detected.
The outputs are disconnected from the Vin power supply when the input voltage is below UVLO,
above OVLO threshold or internal thermal protection is exceeded.
The three OUT pins must be hardwired together and used for power dissipation.
Ground. The three GND pins must be hardwired together and connect to the system GND.
A2,
A3,
B2
OUT
OUTPUT
A4,
B4,
C4
B1
B3,
C2,
C3
C1
PGND
POWER
VBUS_D
ET
IN
OUTPUT
POWER
Vbus detect pin. This pin reflects Vin pin, and be in pass through mode up to regulation level. Upper
this trip, this output regulates IN voltage whatever OVLO event or /EN setting.
Input voltage pins.
These pins are connected to the power supply.
The three IN pins must be hardwired together.
External OVLO Adjustment. Connect external resistor bridge to OVLO pin to select a different OVLO
threshold. Connect OVLO pin to GND if not used. In this case internal OVLO will be selected.
OVLO
INPUT
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NCP392A
Table 2. MAXIMUM RATINGS
Rating
Minimum Voltage (IN, OVLO to GND)
Minimum Voltage (All others to GND)
Maximum Voltage (IN to GND)
Maximum Voltage (OVLO to GND)
Maximum Voltage (OUT to GND)
Maximum Voltage (VBUS_DET to GND)
Maximum Voltage (All others to GND)
Maximum DC current
Peak input current
Thermal Resistance, Junction−to−Air
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)
Moisture Sensitivity
Symbol
Vmin
IN
Vmin
Vmax
IN
Vmax
OVLO
Vmax
OUT
Vmax
VBUS
Vmax
Imax
Ipeak
R
qJA
T
A
T
stg
T
J
V
esd
Value
−0.3
−0.3
29
14
22
10
7
4.5
8
70
−40
to +85
−65
to +150
+ 125
15 kV air, 8 kV contact
2000 V
200 V
Level 1
Unit
V
V
V
V
V
V
V
A
A
°C/W
°C
°C
°C
kV
V
V
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
Table 3. ELECTRICAL CHARACTERISTICS
Min / Max limits values (−40°C < T
A
< +85°C and T
J
= 125°C) and V
in
= +5 V
(Unless otherwise noted). Typical values are T
A
= +25°C.
Characteristics
Input Voltage Range
Under voltage Lockout
Under voltage Lockout hysteresis
Internal Over voltage Lockout
threshold NCP392AR
Internal Over voltage Lockout
hysteresis
External OVLO Reference
External Adjustable OVLO
Over−Voltage Lockout Hysteresis
External OVLO select
Vin versus Vout Resistance
Supply Quiescent Current
Standby Current
OVLO select leakage
OVLO
EXThyst
OVLO
SEL
R
DSon
Idd
Istb
I
OVLO
V
in
= 5 V, /EN = GND, –40°C < T
J
< 125°C
No load. /EN = 0.4 V
No load. /EN = 1.2 V,
No load on VBUS_DET
V
in
falling
0.2
34
90
Symbols
V
in
, V
OVLO
UVLO
UVLO
hyst
OVLO
V
in
rising
V
in
falling
V
in
rising (Note 3)
OVLO pin tied to GND
25°C
V
in
falling
40
60
Conditions
Min
2.8
Typ
Max
28
2.8
80
Unit
V
V
mV
V
5.9
1.5
1.18
4
2
0.3
50
200
150
100
1.221
5.95
6
2.5
1.26
20
%
V
V
%
V
mW
mA
mA
nA
OVLO
hyst
OVLO
_EXT
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
3. Please contact your ON Semiconductor representative for additional OVLO threshold.
Electrical parameters are guaranteed by correlation across the full range of temperature.
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NCP392A
Table 3. ELECTRICAL CHARACTERISTICS
Min / Max limits values (−40°C < T
A
< +85°C and T
J
= 125°C) and V
in
= +5 V
(Unless otherwise noted). Typical values are T
A
= +25°C.
Characteristics
VBUS_DET (A Version)
VBUS_DET Regulation
VBUS_DET Pass Through
VBUS_DET ron
VBUS_DET Current
LOGIC
EN Voltage High
EN Voltage Low
EN Pull−down
TIMINGS
Start up Time
Enable time
Soft start
VBUS_DET rise time
Turn off time
Disable time
OVLO turn off time
TSD
Thermal shutdown
Thermal shutdown rearming
TSD
TSD rearm
140
115
°C
°C
t
START
t
EN
t
RISE
t
VBUS
t
OFF
t
DIS
t
OVLO
From V
in
> 2.8 V to 10% V
out,
/EN low
V
in
present, From /EN high to low, 10% V
out
From 10% to 90% of V
out
, C load 100
mF,
Rload, 100
W,
/EN low
/EN low, From Vin applied to 90%
VBUS_DET, 4.7
mF
load
Surge off time
From EN >1.2 V to 90% V
out.
No load
V
in
rising 2 V/ms
100
20
1.5
15
15
1
2
ms
ms
ms
ms
ns
ms
ms
Vih
Vil
EN
pd
100
1.2
0.4
V
V
kW
LDO
RON
VBUS
THRES
V
in
> VBUS
THRES
V
in
< VBUS
THRES
, I load 1 mA
6.5
V
in
– 0.2
60
1.5
9
V
in
V
V
W
mA
Symbols
Conditions
Min
Typ
Max
Unit
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
3. Please contact your ON Semiconductor representative for additional OVLO threshold.
Electrical parameters are guaranteed by correlation across the full range of temperature.
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