NCP456R
2 A Single Load Switch for
Low Voltage Rail
The NCP456R is a power load switch with very low Ron
NMOSFET controlled by external logic pin, allowing optimization of
battery life, and portable device autonomy.
Indeed, thanks to a best in class current consumption optimization
with NMOS structure, leakage currents are drastically decreased.
Offering optimized leakages isolation on the ICs connected on the
battery.
Reverse voltage protection, from OUT to IN is offered in the
NCP456R.
Proposed in wide input voltage range from 0.75 V to 5.5 V, and a
very small CSP6 0.85 x 1.25 mm2.
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MARKING
DIAGRAM
WLCSP6, 1.25x0.85
CASE 567GZ
A
Y
W
Features
•
•
•
•
•
•
•
•
0.75 V − 5.5 V Operating Range
24 mW N MOSFET
Vbias Rail Input
DC Current up to 2 A
Reverse Blocking Option
Active High EN Pin
CSP6, 0.85 x 1.25 mm2, Pitch 0.4 mm
These Devices are Pb−Free and are RoHS Compliant
= Assembly Location
= Year
= Work Week
PIN CONNECTIONS
Typical Applications
•
•
•
•
•
XXAYW
Notebooks
Tablets
Wireless
Mobile Phones
Digital Cameras
1
2
A
EN
Gate
B
IN
OUT
C
VIBAS
GND
Top View
ORDERING INFORMATION
See detailed ordering, marking and shipping information on
page 11 of this data sheet.
Vcc
V+
SMPS
LS
NCP456R
DCDC Converter
B1
B2
OUT A1
A2 IN
C1 Gate EN C2
Vbias GND
or
LDO
ENx
Platform IC’n
EN
0
Figure 1. Typical Application Schematic
© Semiconductor Components Industries, LLC, 2014
April, 2019 − Rev. 2
1
Publication Order Number:
NCP456/D
NCP456R
LS
NCP456R
DCDC Converter
B1
A2
C1
or
LDO
IN
OUT
Gate
EN
Vbias GND
B2
A1
C2
Platform IC’n
ENx
EN
0
Figure 2. Application Schematic with Vbias Connected to IN and No Gate Delay
PIN FUNCTION DESCRIPTION
Pin Name
Pin
Number
Type
EN
A1
INPUT
IN
B1
POWER
Load−switch input pin.
VBIAS
C1
POWER
External supply voltage input.
GATE
A2
INPUT
OUT
B2
POWER
Load−switch output pin.
GND
C2
POWER
Ground connection.
Description
Enable input, logic high turns on power switch .
OUT pin slew rate control (trise).
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2
NCP456R
BLOCK DIAGRAM
IN: B1
OUT : B2
GATE : A2
Gate driver
Control
logic
&
Charge
Pump
EN : A1
GND : C2
VBIAS : C1
Figure 3. Block Diagram
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3
NCP456R
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
VEN, VIN,
VOUT,
VBIAS,
VGATE
−0.3 to + 6.5
V
From IN to OUT Pins: Input/Output (Note 1)
VIN,
VOUT
±6.5
V
Human Body Model (HBM) ESD Rating are (Note 2)
ESD
HBM
2000
V
Machine Model (MM) ESD Rating are (Note 2)
ESD MM
200
V
Latch−up Protection (Note 3)
Pins IN, OUT, EN, VBIAS and GATE
LU
100
mA
Maximum Junction Temperature
TJ
−40 to + 125
°C
Storage Temperature Range
TSTG
−40 to + 150
°C
Moisture Sensitivity (Note 4)
MSL
Level 1
IN, OUT, EN, VBIAS, GATE Pins: (Note 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. According to JEDEC standard JESD22−A108.
2. This device series contains ESD protection and passes the following tests:
Human Body Model (HBM) ±2.0 kV per JEDEC standard: JESD22−A114 for all pins.
Machine Model (MM) ±250 V per JEDEC standard: JESD22−A115 for all pins.
3. Latch up Current Maximum Rating: ±100 mA per JEDEC standard: JESD78 class II.
4. Moisture Sensitivity Level (MSL): 1 per IPC/JEDEC standard: J−STD−020.
OPERATING CONDITIONS
Symbol
Parameter
Max
Unit
0.75
5.5
V
0
5.5
V
Bias voltage (VBIAS ≥ best of VIN, Vout)
1.2
5.5
V
TA
Ambient Temperature Range
−40
+85
°C
CIN
Decoupling input capacitor
100
nF
COUT
Decoupling output capacitor
100
nF
RqJA
Thermal Resistance Junction to Air
IOUT
Maximum DC current
VIN
Operational Power Supply
VEN
Enable Voltage
VBIAS
PD
Conditions
Min
CSP6 (Note 5)
Typ
25
100
°C/W
2
Power Dissipation Rating
(Note 6)
0.2
A
W
Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond
the Recommended Operating Ranges limits may affect device reliability.
5. The RqJA is dependent of the PCB heat dissipation and thermal via.
6. The maximum power dissipation (PD) is given by the following formula:
PD +
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4
T JMAX * T A
R qJA
NCP456R
ELECTRICAL CHARACTERISTICS Min & Max Limits apply for TA between −40°C to +85°C for VIN and VBIAS between 0.75 V to
5.5 V (Unless otherwise noted). Typical values are referenced to TA = + 25°C, VIN = 3.3 V and VBIAS = 5 V (Unless otherwise noted).
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
24
33
mW
POWER SWITCH
TA = 25 °C
VIN = VBIAS = 5.5 V
TJ = 125°C
TA = 25°C
VIN = VBIAS = 3.3 V
TJ = 125°C
TA = 25°C
VIN = VBIAS = 1.8 V
RDS(on)
Static drain−
source on−state
resistance for
each rail
39
24
39
25
TJ = 125°C
TA = 25°C
VIN = VBIAS = 1.5 V
TA = 25°C
26
TA = 25°C
28
TA = 25°C
mW
40
42
30
TJ = 125°C
VIN = 0.8 V,
VBIAS = 1.2 V
35
41
TJ = 125°C
VIN = 1.0 V.
VBIAS = 1.2 V
34
40
TJ = 125°C
VIN = VBIAS = 1.2 V
33
40
42
35
TJ = 125°C
45
50
TIMINGS
TR
TF
Output rise time
Output fall time
VIN = 5 V
Ten
TR
TF
Enable time
Output rise time
Output fall time
VIN = 3.3 V
Ten
Enable time
No cap on GATE pin
0.11
Gate capacitor = 1 nF
1.4
Gate capacitor = 10 nF
15.7
CLOAD = 1 mF, RLOAD = 25 W
(Note 8)
50
ms
From EN low to high to Vout =
10% of fully on− NCP456R.
10 nF gate capacitor
3
ms
From EN low to high to Vout =
10% of fully on− NCP456R. 1 nF
gate capacitor
300
ms
From EN low to high to Vout =
10% of fully on− NCP456R.
Without gate capacitor
51
ms
No cap on GATE pin
0.1
Gate capacitor = 1 nF
1
Gate capacitor = 10 nF
11
CLOAD = 1 mF, RLOAD = 25 W
(Note 8)
60
From EN low to high to Vout =
10% of fully on− NCP456R.
10 nF Gate capacitor.
2.4
ms
From EN low to high to Vout =
10% of fully on− NCP456R. 1 nF
Gate capacitor.
230
ms
From EN low to high to Vout =
10% of fully on− NCP456R.
Without gate capacitor
50
ms
0.3
ms
120
120
ms
ms
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.
7. Parameters are guaranteed for CLOAD and RLOAD connected to the OUT pin with respect to the ground
8. Guaranteed by design and characterization, not production tested.
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5
NCP456R
ELECTRICAL CHARACTERISTICS Min & Max Limits apply for TA between −40°C to +85°C for VIN and VBIAS between 0.75 V to
5.5 V (Unless otherwise noted). Typical values are referenced to TA = + 25°C, VIN = 3.3 V and VBIAS = 5 V (Unless otherwise noted).
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
TIMINGS
TR
TF
No cap on GATE pin
0.06
Output rise time
Gate capacitor = 1 nF
0.6
Gate capacitor = 10 nF
6
Output fall time
CLOAD = 1 mF, RLOAD = 25 W
(Note 8)
35
ms
From EN low to high to Vout =
10% of fully on− 10 nF Gate
capacitor
1.8
ms
From EN low to high to Vout =
10% of fully on− 1 nF Gate
capacitor
180
ms
From EN low to high to Vout =
10% of fully on− NCP456R.
Without gate capacitor
42
ms
No cap on GATE pin
0.04
VIN = 1.8 V
Ten
TR
TF
Ten
Enable time
Output rise time
Output fall time
Enable time
VIN = 1 V
ms
Gate capacitor = 1 nF
0.35
Gate capacitor = 10 nF
3.5
CLOAD = 1 mF, RLOAD = 25 W
(Note 8)
20
ms
From EN low to high to Vout =
10% of fully on− NCP456R. 1 nF
gate capacitor
140
ms
From EN low to high to Vout =
10% of fully on− NCP456R.
Without gate capacitor
40
ms
ms
LOGIC
VIH
High−level input
voltage
VIL
Low−level input
voltage
REN
Pull down resistor
0.9
V
3
0.4
V
7
MW
REVERSE CURRENT BLOCKING
Vrev_thr
Reverse threshold
Vrev_hyst
Reverse threshold
hysteresis
Trev
Reverse comparator response time
Vout−Vin
32
mV
50
mV
Vout−Vin > Vrev_thr
2.5
ms
QUIESCENT CURRENT
IVBIAS
Bias current for
charge pump
VBIAS = 3.3 V, EN = high
1.5
6
mA
IIN
IN Current consumption
EN = high
0.01
0.3
mA
ISTB
Standby current
IN
EN = low, IN standby current, VIN = 3.3 V
0.01
0.3
mA
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.
7. Parameters are guaranteed for CLOAD and RLOAD connected to the OUT pin with respect to the ground
8. Guaranteed by design and characterization, not production tested.
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6
NCP456R
ELECTRICAL CHARACTERISTICS Min & Max Limits apply for TA between −40°C to +85°C for VIN and VBIAS between 0.75 V to
5.5 V (Unless otherwise noted). Typical values are referenced to TA = + 25°C, VIN = 3.3 V and VBIAS = 5 V (Unless otherwise noted).
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
QUIESCENT CURRENT
ISTDVbias
Standby current
VBIAS
VBIAS = 3.3 V EN = low
0.4
2
mA
Iout_leak
Output leakage
current
IN connected to GND, VOUT = 5 V
0.01
0.5
mA
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.
7. Parameters are guaranteed for CLOAD and RLOAD connected to the OUT pin with respect to the ground
8. Guaranteed by design and characterization, not production tested.
TIMINGS
Vin
EN
Vout
TEN TR
TDIS TF
TON
TOFF
Figure 4. Enable, Rise and Fall Time
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7
NCP456R
TYPICAL CHARACTERISTICS
Figure 5. RDS(on) versus Vin, Room Temperature, Vbias 5 V
Figure 6. RDS(on) versus Vin, Room Temperature, Vbias Connected to Vin
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8
NCP456R
FUNCTIONAL DESCRIPTION
Overview
The NCP456R is a high side N Channel MOSFET power
distribution switch designed to isolate ICs connected on the
battery or DCDC supplies in order to save energy. The part
can be used with a wide range of supply from 0.75 V to 5.5
V.
huge inrush current when EN is set from low to high. The
default gate slew rate depends on Vin level. The higher Vin
level, the longer rise time.
In addition, an external capacitor can be connected
between Gate pin and GND in order to slow down the gate
rising. See electrical table for more details.
Enable input
Cin and Cout Capacitors
Enable pin is an active high. The path is opened when EN
pin is tied low (disable), forcing NMOS switch off.
The IN/OUT path is activated with a minimum of VBIAS
≥ best of VIN, VOUT = 0.75 V and EN forced to high level.
100 nF external capacitors must be connected as close as
possible the DUT for noise immunity and better stability. In
case of input hot plug (input voltage connected with fast
slew rate − few ms − it’s strongly recommended to avoid big
capacitor connected on the input. That allows to avoid input
over voltage transients.
VBIAS Rail
The core of the IC is supplied due to VBIAS supply rail
(common +5 V, 3.3 V, 1.8 V, 1.2 V ...etc). Indeed, no current
consumption is used on IN pin, allowing to improve power
saving of the rail that must be isolated by the power switch.
If Vbias rail is not available or used, Vbias pin and Vin pin
can be connected togheter as close as possible the DUT.
Reverse Blocking Control
A reverse blocking control circuitry is embedded to
eliminate leakages from OUT to IN in case of Vout>Vin.
A comparator measures the dropout voltage on the switch
between OUT and IN and turn off the NMOS if this voltage
exceeds specified reverse voltage. This comparator is
available whatever the EN pin level.
Output Rise Time − Gate Control
The NMOS is control with internal charge pump and
driver. A minimum gate slew rate is internally set to avoid
APPLICATION INFORMATION
Power Dissipation
Demoboard
Main contributor in term of junction temperature is the
power dissipation of the power MOSFET. Assuming this,
the power dissipation and the junction temperature in
normal mode can be calculated with the following
equations:
The NCP456R integrates a 2 A rated NMOS FET, and the
PCB rules must be respected to properly evacuate the heat
out of the silicon.
The package is a CSP and due to the low thermal
resistance of the silicon, all the balls can be used to improved
power dissipation. Indeed, even if the power crosses the IN
/ OUT pins only, all the balls around this power area should
be connected to the larger PCB area.
In the below PCB example (application demonstration
board), all the PCB areas connected to 6 balls are enlarged.
In addition vias are connected to bottom side with exactly
same form factor of the other PCB side.
Additional improvements can be done also by using more
copper thickness and the thinner epoxy as possible.
P D + R DS(on)
PD
RDS(on)
Iout
2
(eq. 1)
= Power dissipation (W)
= Power MOSFET on resistance (W)
= Output current (A)
TJ + RD
TJ
RqJA
TA
ǒI outǓ
R qJA ) T A
(eq. 2)
= Junction temperature (°C)
= Package thermal resistance (°C/W)
= Ambient temperature (°C)
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9
NCP456R
Figure 7. PCB Top View
Figure 8. PCB Bottom View
OUT
NCP456R
OUT_2
1
IN_2
1
IN
U1
C3
1nF
J9
1
2
100 k
R3
EN
D2
DIODE ZENER1
VBIAS
C4
1μF
R2
100 k
Figure 9. Board Schematic
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10
GND
2
C2
C1
1μF
DIODE ZENER1
Bat
GND
1μF
2
B1
B2
OUT A1
A2 IN
C1 Gate EN C2
Vbias GND
D1
NCP456R
BILL OF MATERIAL
Quantity
Reference schem
2
IN, OUT
4
IN_2, OUT_2, VBIAS, EN
1
J9 (Bat)
3
C1, C2, C4
1
C3
1
D1, D2
2
GND2,GND
2
R2, R3
1
U1
Part description
Socket, 4mm, metal, PK5
HEADER200
HEADER200-2
1uF
1nF, Not mounted
TVS
GND JUMPER
Resistor 100k 0603
Load switch
Part number
B010
2.54 mm, 77313-101-06LF
2.54 mm, 77313-101-06LF
GRM155R70J105KA12#
GRM188R60J102ME47#
ESD9x
D3082F05
MC 0.063 0603 1% 100K
NCP456 - 457
Manufacturer
HIRSCHMANN
FC
FC
Murata
Murata
ON semiconductor
Harvin
MULTICOMP
ON semiconductor
ORDERING INFORMATION
Device
NCP456RFCCT2G
Options
Marking
Package
Shipping
Reverse Voltage
Protection
56dYW
WLCSP 1.25 x 0.85 mm
(Pb−Free)
3000 Tape / Reel
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
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11
MECHANICAL CASE OUTLINE
PACKAGE DIMENSIONS
WLCSP6 1.25x0.85x0.559
CASE 567GZ
ISSUE C
DATE 16 JUN 2022
GENERIC
MARKING DIAGRAM*
XXAYW
A
Y
W
= Assembly Location
= Year
= Work Week
*This information is generic. Please refer to
device data sheet for actual part marking.
Pb−Free indicator, “G” or microdot “G”, may
or may not be present. Some products may
not follow the Generic Marking.
DOCUMENT NUMBER:
DESCRIPTION:
98AON89059E
WLCSP6 1.25x0.85x0.559
Electronic versions are uncontrolled except when accessed directly from the Document Repository.
Printed versions are uncontrolled except when stamped “CONTROLLED COPY” in red.
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