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IntelliMAX] Dual-Input
Single-Output Advanced
Power Switch with True
Reverse-Current Blocking
FPF1320, FPF1321
www.onsemi.com
Description
The FPF1320/21 is a Dual−Input Single−Output (DISO) load switch
consisting of two sets of slew−rate controlled, low on−resistance,
P−channel MOSFET switches and integrated analog features.
The slew−rate−controlled turn−on characteristic prevents inrush
current and the resulting excessive voltage droop on the power rails.
The input voltage range operates from 1.5 V to 5.5 V to align with the
requirements of low−voltage portable device power rails. FPF1320/21
performs seamless power−source transitions between two input power
rails using the SEL pin with advanced break−before−make operation.
FPF1320/21 has a TRCB function to block unwanted reverse
current from output to input during ON/OFF states. The switch is
controlled by logic inputs of the SEL and EN pins, which are capable
of interfacing directly with low−voltage control signals (GPIO).
FPF1321 has 65 W on−chip load resistor for output quick discharge
when EN is LOW.
FPF1320/21 is available in 1.0 mm x 1.5 mm WLCSP, 6−bump,
with 0.5 mm pitch. FPF1321B is available in 1.0 mm x 1.5 mm
WLCSP, 6−bump, 0.5 mm pitch with backside laminate.
Features
•
•
•
•
•
•
•
•
•
•
DISO Load Switches
Input Supply Operating Range: 1.5 V ~ 5.5 V
RON 50 mW at VIN = 3.3 V Per Channel (Typical)
True Reverse − Current Blocking (TRCB)
Fixed Slew Rate Controlled 130 ms for < 1 mF COUT
ISW: 1.5 A Per Channel (Maximum)
Quick Discharge Feature on FPF1321
Logic CMOS IO Meets JESD76 Standard for GPIO Interface and
Related Power Supply Requirements
ESD Protected:
♦ Human Body Model: > 6 kV
♦ Charged Device Model: > 1.5 kV
♦ IEC 61000−4−2 Air Discharge: > 15 kV
♦ IEC 61000−4−2 Contact Discharge: > 8 kV
These are Pb−Free and Halide Free Devices
WLCSP−6
CASE 567RM
MARKING DIAGRAM
Qx&K
&.&2&Z
Qx
&K
&.
&2
&Z
= Specific Device Code
x = S or T
= Traceability Code
= Pin one dot
= Date Code
= Assembly plant code
ORDERING INFORMATION
See detailed ordering and shipping information on page 12 of
this data sheet.
Applications
• Smart Phones / Tablet PCs
• Portable Devices
• Near Field Communication (NFC) Capable SIM Card Power Supply
© Semiconductor Components Industries, LLC, 2011
July, 2021 − Rev. 3
1
Publication Order Number:
FPF1321/D
FPF1320, FPF1321
APPLICATION DIAGRAM
VIN_A
VINA
VOUT
CIN1
COUT
FPF1320/21
VIN_B
VINB
CIN2
GND
SEL
EN
Figure 1. Typical Application
BLOCK DIAGRAM
TRCB
VIN_A
VOUT
Turn−On Slew Rate
Controlled Driver
FPF1320/21
Output
Discharge
(Optional)
TRCB
VIN_B
Turn−On Slew
Rate Controlled
Driver
SEL
Control
logic
GND
EN
Figure 2. Functional Block Diagram (Output Discharge Path for FPF1321 Only)
www.onsemi.com
2
FPF1320, FPF1321
PIN CONFIGURATION
Pin 1 Indicator
EN
VINA
VINA
EN
A1
A2
A2
A1
SEL
VOUT
VOUT
SEL
B1
B2
B2
B1
GND
VINB
VINB
GND
C1
C2
C2
C1
Top View
Bottom View
Figure 3. Pin Assignments
PIN DESCRIPTION
Pin #
Name
A1
EN
Enable input. Active HIGH. There is an internal pull−down resistor at the EN pin.
Description
B1
SEL
Input power selection inputs. See Truth Table. There are internal pull−down resistors at the SEL pins.
A2
VINA
Supply Input. Input to the power switch A.
B2
VOUT
Switch output
C1
GND
Ground
C2
VINB
Supply Input. Input to power switch B.
TRUTH TABLE
SEL
EN
Switch A
Switch B
VOUT
Status
Low
High
ON
OFF
VINA
VINA Selected
High
High
OFF
ON
VINB
VINB Selected
X
Low
OFF
OFF
Floating for FPF1320
GND for FPF1321
Both Switches are OFF
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3
FPF1320, FPF1321
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameters
Min
Max
Unit
−0.3
6
V
VIN
VINA, VINB, VSEL, VEN, VOUT to GND
ISW
Maximum Continuous Switch Current per Channel
−
1.5
A
PD
Total Power Dissipation at TA = 25°C
−
1.2
W
−65
150
°C
−
85 (Note 1)
°C/W
−
110 (Note 2)
6.0
−
Charged Device Model, JESD22−C101
1.5
−
Air Discharge (VINA, VINB to GND),
IEC61000−4−2 System Level
15.0
−
Contact Discharge (VINA, VINB to GND),
IEC61000−4−2 System Level
8.0
−
TSTG
Operating and Storage Junction Temperature
QJA
Thermal Resistance, Junction−to−Ambient
(1 in.2 Pad of 2−oz. Copper)
ESD
Electrostatic Discharge Capability
Human Body Model, JESD22−A114
kV
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. Measured using 2S2P JEDEC std. PCB.
2. Measured using 2S2P JEDEC PCB cold−plate method.
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameters
Min
Max
Unit
VIN
Input Voltage on VINA, VINB
1.5
5.5
V
TA
Ambient Operating Temperature
−40
85
°C
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.
ELECTRICAL CHARACTERISTICS VINA = VINB = 1.5 to 5.5 V, TA = −40 to 85°C unless otherwise noted. Typical values are at
VINA = VINB = 3.3 V, TA = 25°C
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
1.5
−
5.5
V
BASIC OPERATION
VINA, VINB
Input Voltage
−
ISD
Shutdown Current
SEL = HIGH or LOW, EN = GND,
VOUT = GND, VINA = VINB = 5.5 V
−
−
5
mA
IQ
Quiescent Current
IOUT = 0 mA, SEL = HIGH or
LOW, EN = HIGH,
VINA = VINB = 5.5 V
−
12
22
mA
On−Resistance
VINA = VINB = 5.5 V,
IOUT = 200 mA, TA = 25°C
−
42
60
mW
VINA = VINB = 3.3 V,
IOUT = 200 mA, TA = 25°C
−
50
−
VINA = VINB = 1.8 V,
IOUT = 200 mA, TA = 25°C to 85°C
−
80
−
VINA = VINB = 1.5 V,
IOUT = 200 mA, TA = 25°C
−
−
170
RON
VIH
SEL, EN Input Logic High Voltage
VINA, VINB = 1.5 V – 5.5 V
1.15
−
−
V
VIL
SEL, EN Input Logic Low Voltage
VINA, VINB = 1.8 V – 5.5 V
−
−
0.65
V
SEL, EN Input Logic Low Voltage
VINA, VINB = 1.5 V – 1.8 V
−
−
0.60
Output Voltage Droop while Channel
Switching from Higher Input Voltage
Lower Input Voltage (Note 3)
VINA = 3.3 V, VINB = 5 V,
Switching from VINA → VINB,
RL = 150 W, COUT = 1 mF
−
−
100
mV
Input Leakage at SEL and EN Pin
−
−
−
1.2
mA
VDROOP_OUT
ISEL/IEN
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4
FPF1320, FPF1321
ELECTRICAL CHARACTERISTICS VINA = VINB = 1.5 to 5.5 V, TA = −40 to 85°C unless otherwise noted. Typical values are at
VINA = VINB = 3.3 V, TA = 25°C (continued)
Symbol
Parameter
Test Conditions
Min
Typ
Max
Unit
BASIC OPERATION (continued)
RSEL_PD/
REN_PD
RPD
Pull−Down Resistance at SEL or EN Pin
−
−
7
−
MW
Output Pull−Down Resistance
SEL = HIGH or LOW, EN = GND,
IFORCE = 20 mA, TA = 25°C,
FPF1321
−
65
−
W
TRUE REVERSE CURRENT BLOCKING
VT_RCB
RCB Protection Trip Point
VOUT − VINA or VINB
−
45
−
mV
VR_RCB
RCB Protection Release Trip Point
VINA or VINB −VOUT
−
25
−
mV
IRCB
VINA or VINB Current During RCB
VOUT = 5.5 V,
VINA or VINB = Short to GND
−
9
15
mA
RCB Response Time w hen Device is
ON (Note 3)
VINA or VINB = 5 V,
VOUTVINA,B = 100 mV
−
5
−
ms
VINA or VINB = 3.3 V, RL = 150 W,
CL = 1 mF, TA = 25°C, SEL: HIGH,
EN: LOW → HIGH
−
120
−
ms
−
130
−
−
250
−
−
15
−
−
320
−
−
335
−
VINA or VINB = 3.3 V, RL = 150 W,
CL = 1 mF, TA = 25°C, SEL: HIGH,
EN: HIGH→ LOW,
Output Discharge Mode, FPF1321
−
6
−
−
110
−
−
116
−
VINA = 3.3 V, VINB = 5 V,
Switching from VINA → VINB,
SEL: LOW → HIGH, EN: HIGH,
RL = 150 W, CL = 1 mF, TA = 25°C
−
3
−
−
1
−
VINA = 3.3 V, VINB = 5 V,
Switching from VINB → VINA,
SEL: HIGH → LOW, EN: HIGH,
RL = 150 W, C = 1 mF, TA = 25°C
−
45
−
−
5
−
tRCB_ON
DYNAMIC CHARACTERISTICS
tDON
Turn−On Delay (Note 4)
tR
VOUT Rise Time (Note 4)
tON
Turn−On Time (Note 6)
tDOFF
Turn−Off Delay (Note 4)
tF
VOUT Fall Time (Note 4)
tOFF
Turn−Off Time (Note 7)
tDOFF
Turn−Off Delay (Note 4, Note 5)
tF
VOUT Fall Time (Note 4, Note 5)
tOFF
Turn−Off Time (Note 5, Note 7)
tTRANR
tSLH
tTRANF
tSHL
Transition Time LOW → HIGH (Note 4)
Switch−Over Rising Delay (Note 4)
Transition Time HIGH → LOW (Note 4)
Switch−Over Falling Delay (Note 4)
VINA or VINB = 3.3 V, RL = 150 W,
CL = 1 mF, TA = 25°C, SEL: HIGH,
EN: HIGH→ LOW
ms
ms
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.
3. This parameter is guaranteed by design and characterization; not production tested.
4. tDON/tDOFF/tR/tF/tTRANR/tTRANF/tSLH/tSHL are defined in Figure 4.
5. FPF1321 output discharge is enabled during off.
6. tON = tR + tDON
7. tOFF = tF + tDOFF
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5
FPF1320, FPF1321
TIMING DIAGRAM
VINA
5V
VINB
3.3 V
HI
SEL
50%
50%
LO
LO
HI
EN
50%
LO
VOUT
tDON
tR
90%
LO
tSHL
5V
5V
90%
10%
3.3 V
90%
tF
90%
10%
VDROOP
Turn−on and VINA
tDOFF
10%
GND
Shutdown
50%
tSLH tTRANR
tTRANF
Switching from
VINA to VINB
Switching from
VINB to VINA
Figure 4. Dynamic Behavior Timing Diagram
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6
Output discharge
of FPF1321
Shutdown
GND
FPF1320, FPF1321
TYPICAL CHARACTERISTICS
14.0
25.0
12.0
15.0
Quiecent Current (mA)
Quiecent Current (mA)
20.0
VIN = 5.5 V
10.0
5.0
0.0
−40
VIN = 1.5 V
−25
−10
5
20
35
50
65
2.5
3
3.5
4
4.5
5
Supply Voltage (V)
Figure 5. Supply Current vs. Temperature
Figure 6. Supply Current vs. Supply Voltage
5.5
3000
Shutdown Current (nA)
3000
VIN = 5.5 V
2000
1000
0
2500
1500
1000
VIN = 1.5 V
−25
−10
5
20
35
50
65
85°C
2000
−40°C
25°C
500
0
1.5
80
2
2.5
3
3.5
4
4.5
5
5.5
TJ, Junction Temperature (5C)
Supply Voltage (V)
Figure 7. Shutdown Current vs. Temperature
Figure 8. Shutdown Current vs. Supply Voltage
140
IOUT = 200 mA
120
VINA = 1.5 V
100
RON, On Resistance (mW)
Shutdown Current (nA)
2
TJ, Junction Temperature (5C)
4000
RON, On Resistance (mW)
4.0
0.0
1.5
5000
VINA = 1.8 V
80
60
VINA = 3.3 V
40
VINA = 5.5 V
20
0
−40
−40°C
6.0
80
6000
140
25°C
8.0
2.0
7000
−1000
−40
85°C
10.0
−20
0
20
40
60
IOUT = 200 mA
120
100
85°C
80
60
40
25°C
0
1.5
80
−40°C
20
2
2.5
3
3.5
4
4.5
TJ, Junction Temperature (5C)
Supply Voltage (V)
Figure 9. RON vs. Temperature
Figure 10. RON vs. Supply Voltage
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7
5
5.5
FPF1320, FPF1321
TYPICAL CHARACTERISTICS (continued)
1.00
0.95
Input Logic Low Voltage (V)
Input Logic Low Voltage (V)
1.00
VIN = 5.5 V
0.90
VIN = 3.3 V
0.85
0.80
VIN = 1.5 V
0.75
0.70
0.65
0.60
−40
−25
−10
5
20
35
50
65
0.80
0.75
2.3
2.8
3.3
3.8
4.3
4.8
Supply Voltage (V)
Figure 11. VIL vs. Temperature
Figure 12. VIL vs. Supply Voltage
Input Logic High Voltage (V)
0.90
VIN = 3.3 V
0.85
0.80
VIN = 1.5 V
0.75
0.70
0.65
−25
−10
5
20
35
50
65
5.3
−40°C
0.90
25°C
85°C
0.85
0.80
0.75
2.3
2.8
3.3
3.8
4.3
4.8
TJ, Junction Temperature (5C)
Supply Voltage (V)
Figure 13. VIH vs. Temperature
Figure 14. VIH vs. Supply Voltage
5.3
9.0
25°C
0.95
VIH
0.90
VIL
0.85
0.80
0.75
2.3
0.95
0.70
1.8
80
Pull−Down Resistance (MW)
Input Logic High Voltage (V)
85°C
0.85
TJ, Junction Temperature (5C)
VIN = 5.5 V
0.60
−40
Input Logic Voltage (V)
25°C
1.00
0.95
0.70
1.8
−40°C
0.90
0.70
1.8
80
1.00
1.00
0.95
2.8
3.3
3.8
4.3
4.8
8.5
8.0
7.5
EN = 6 V
7.0
EN = 1.5 V
6.5
6.0
5.5
−40
5.3
−20
0
20
40
60
80
Supply Voltage (V)
TJ, Junction Temperature (5C)
Figure 15. VIH/VIL vs. Supply Voltage
Figure 16. RSEL_PD and REN_PD vs. Temperature
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8
FPF1320, FPF1321
TYPICAL CHARACTERISTICS (continued)
179
−40°C
8.0
7.5
7.0
25°C
6.5
6.0
85°C
5.5
5.0
1.5
3.5
4.5
tDON
119
99
79
59
39
tDOFF
−1
−40
5.5
−15
35
60
85
TJ, Junction Temperature (5C)
Figure 17. RSEL_PD and REN_PD vs. Supply Voltage
Figure 18. tDON and tDOFF vs. Temperature
190
410
tF
Rise/Fall Time (ms)
310
260
210
160
60
10
−40
VIN = 3.3 V
CL = 1 mF
RL = 150 W
−15
35
150
tR
130
110
tF
90
70
50
tR
10
VIN = 3.3 V
CL = 1 mF
RL = 150 W
170
360
110
30
60
10
−40
85
−15
TJ, Junction Temperature (5C)
35
60
85
Figure 20. tR and tF with FPF1321 vs. Temperature
60
5
5
Switch−Over Delay (ms)
tTRANF
50
VIN = 5 V to 3.3 V
CL = 1 mF
RL = 150 W
40
30
20
10
0
−40
10
TJ, Junction Temperature (5C)
Figure 19. tR and tF with FPF1320 vs. Temperature
Transition Time (ms)
10
Supply Voltage (V)
460
Rise/Fall Time (ms)
139
19
2.5
VIN = 3.3 V
CL = 1 mF
RL = 150 W
159
On/Off Delay Time (ms)
Pull−Down Resistance (MW)
8.5
−15
4
3
3
2
2
1
1
tTRANR
10
35
60
0
−40
85
tSHL
4
tSLH
VIN = 5 V to 3.3 V
CL = 1 mF
RL = 150 W
−15
10
35
60
TJ, Junction Temperature (5C)
TJ, Junction Temperature (5C)
Figure 21. Transition Time vs. Temperature
Figure 22. Switch Over Time vs. Temperature
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9
85
FPF1320, FPF1321
70
12.0
60
11.0
10.0
50
Trip
40
30
IRCB (mA)
RCB Trip/Release A (mV)
TYPICAL CHARACTERISTICS (continued)
Release
20
9.0
8.0
7.0
6.0
10
5.0
0
−40
−25
−10
5
20
35
50
65
4.0
−40
80
−25
−10
5
20
35
50
65
TJ, Junction Temperature (5C)
TJ, Junction Temperature (5C)
Figure 23. TRCB Trip and Release vs. Temperature
Figure 24. IRCB vs. Temperature
80
Output Pull Down Resistance (W)
85.0
80.0
75.0
70.0
RPD
65.0
60.0
55.0
50.0
45.0
−40
−20
0
20
40
60
80
Figure 25. RPD with FPF1321 vs. Temperature
Figure 26. Turn−On Response
(VINA = 3.3 V, CIN = 1 mF, COUT = 1 mF, RL = 150 W,
SEL = LOW)
Figure 27. Turn−Off Response with FPF1320
(VINA = 3.3 V, CIN = 1 mF, COUT = 1 mF, RL = 150 W,
SEL = LOW)
Figure 28. Turn−Off Response with FPF1321
(VINA = 3.3 V, CIN = 1 mF, COUT = 1 mF, RL = 150 W,
SEL = LOW)
TJ, Junction Temperature (5C)
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10
FPF1320, FPF1321
TYPICAL CHARACTERISTICS (continued)
Figure 30. Power Source Transition from
5 V to 3.3 V (VINA = 3.3 V, VINB = 5 V, CIN = 1 mF,
COUT = 1 mF, RL = 150 W)
Figure 29. Power Source Transition from
3.3 V to 5 V (VINA = 3.3 V, VINB = 5 V, CIN = 1 mF,
COUT = 1 mF, RL = 150 W)
Figure 31. TRCB During Off
(VINA = VINB = Floating, VOUT = 5 V, CIN = 1 mF,
COUT = 1 mF, EN = LOW, No RL)
Figure 32. TRCB During On
(VINA = 5 V, VOUT = 6 V, CIN = 1 mF, COUT = 1 mF,
EN = HIGH, No RL)
OPERATION AND APPLICATION DESCRIPTION
Input Capacitor
The FPF1320 and FPF1321 are dual−input single−output
power multiplexer switches with controlled turn−on and
seamless power source transition. The core is a 50 mW
P−channel MOSFET and controller capable of functioning
over a wide input operating range of 1.5 V to 5.5 V per
channel. The EN and SEL pins are active−HIGH,
GPIO/CMOS−compatible input. They control the state of
the switch and input power source selection, respectively.
TRCB functionality blocks unwanted reverse current during
both ON and OFF states when higher VOUT than VINA or
VINB is applied. FPF1321 has a 65 W output discharge path
during off.
To limit the voltage drop on the input supply caused by
transient inrush current when the switch turns on into
a discharged load capacitor; a capacitor must be placed
between the VINA or VINB pins to the GND pin. At least
1 mF ceramic capacitor, CIN, placed close to the pins, is
usually sufficient. Higher−value CIN can be used to reduce
more the voltage drop.
Inrush Current
Inrush current occurs when the device is turned on. Inrush
current is dependent on output capacitance and slew rate
control capability, as expressed by:
IINRUSH + COUT
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11
VIN * VINITIAL ) I
LOAD
tR
(eq. 1)
FPF1320, FPF1321
FPF1320/1 adopts an advanced break−before−make
control, which can result in minimized output voltage drop
during the transition time.
where:
COUT: Output capacitance;
tR: Slew rate or rise time at VOUT;
VIN: Input voltage, VINA or VINB;
VINITIAL: Initial voltage at COUT, usually GND; and
ILOAD: Load current.
Output Capacitor
Capacitor COUT of at least 1 mF is highly recommended
between the VOUT and GND pins to achieve minimized
output voltage drop during input power source transition.
This capacitor also prevents parasitic board inductance.
Higher inrush current causes higher input voltage drop,
depending on the distributed input resistance and input
capacitance. High inrush current can cause problems.
FPF1320/1 has a 130 ms of slew rate capability under
3.3 VIN at 1 mF of COUT and 150 W of RL so inrush current
and input voltage drop can be minimized.
True Reverse−Current Blocking
The true reverse−current blocking feature protects the
input source against current flow from output to input
regardless of whether the load switch is on or off.
Power Source Selection
Board Layout
Input power source selection can be controlled by the SEL
pin. When SEL is LOW, output is powered from VINA while
SEL is HIGH, VINB is powering output. The SEL signal is
ignored during device OFF.
For best performance, all traces should be as short as
possible. To be most effective, the input and output
capacitors should be placed close to the device to minimize
the effect that parasitic trace inductance on normal and
short−circuit operation. Wide traces or large copper planes
for power pins (VINA, VINB, VOUT and GND) minimize
the parasitic electrical effects and the thermal impedance.
Output Voltage Drop During Transition
Output voltage drop usually occurs during input power
source transition period from low voltage to high voltage.
The drop is highly dependent on output capacitance and load
current.
ORDERING INFORMATION
Channel
Switch Per
Channel (Typ.)
at 3.3 VIN
Reverse
Current
Blocking
Output
Discharge
Rise Time
(tR)
QS
DISO
50 mW
Yes
NA
130 ms
FPF1321UCX
QT
DISO
50 mW
Yes
65 W
130 ms
FPF1321BUCX
QT
DISO
50 mW
Yes
65 W
130 ms
Top
Mark
FPF1320UCX
Part Number
Package
1.0 mm × 1.5 mm
Wafer−Level Chip−Scale
Package (WLCSP)
6−Bumps, 0.5 mm Pitch
1.0 mm × 1.5 mm
Wafer−Level Chip−Scale
Package (WLCSP)
6−Bumps, 0.5 mm Pitch
with Backside Laminate
PRODUCT−SPECIFIC DIMENSIONS
Product
D
E
X
Y
FPF1320UCX
1460 mm ±30 mm
960 mm ±30 mm
230 mm
230 mm
FPF1321UCX
1460 mm ±30 mm
960 mm ±30 mm
230 mm
230 mm
FPF1321BUCX
1460 mm ±30 mm
960 mm ±30 mm
230 mm
230 mm
IntelliMAX is a trademark of Semiconductor Components Industries, LLC (SCILLC) or its subsidiaries in the United States and/or other countries.
www.onsemi.com
12
MECHANICAL CASE OUTLINE
PACKAGE DIMENSIONS
WLCSP6 1.46x0.96x0.582
CASE 567RM
ISSUE O
DOCUMENT NUMBER:
DESCRIPTION:
98AON16579G
WLCSP6 1.46x0.96x0.582
DATE 30 NOV 2016
Electronic versions are uncontrolled except when accessed directly from the Document Repository.
Printed versions are uncontrolled except when stamped “CONTROLLED COPY” in red.
PAGE 1 OF 1
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