Fairchild FPF1321UCX Intellimaxâ ¢ dual-input single-output advanced power switch with true reverse-current blocking Datasheet

FPF1320 / FPF1321
IntelliMAX™ Dual-Input Single-Output Advanced Power
Switch with True Reverse-Current Blocking
Features
Description








DISO Load Switches
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-ratecontrolled turn-on characteristic prevents inrush current
and the resulting excessive voltage droop on the power
rails. The input voltage range operates from 1.5V to
5.5V 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 breakbefore-make operation.

ESD Protected:
- Human Body Model: >6kV
Input Supply Operating Range: 1.5V ~ 5.5V
RON 50mΩ at VIN=3.3V Per Channel (Typical)
True Reverse-Current Blocking (TRCB)
Fixed Slew Rate Controlled 130µs for < 1µF COUT
ISW: 1.5A Per Channel (Maximum)
Quick Discharge Feature on FPF1321
Logic CMOS IO Meets JESD76 Standard for GPIO
Interface and Related Power Supply Requirements
-
Charged Device Model: >1.5kV
-
IEC 61000-4-2 Air Discharge: >15kV
-
IEC 61000-4-2 Contact Discharge: >8kV
Applications



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 65Ω on-chip load resistor for output quick
discharge when EN is LOW.
FPF1320/21 is available in 1.0mm x 1.5mm WLCSP,
6-bump, with 0.5mm pitch.
Smart phones / Tablet PCs
Portable Devices
Near Field Communication (NFC) Capable
SIM Card Power Supply
Ordering Information
Part
Number
FPF1320UCX
FPF1321UCX
Switch Per
Top
Channel Channel (Typ.)
Mark
at 3.3VIN
QS
QT
DISO
DISO
© 2011 Fairchild Semiconductor Corporation
FPF1320 / FPF1321 • Rev. 1.0.0
50mΩ
50mΩ
Reverse
Output
Rise
Current
Discharge Time (tR)
Blocking
Yes
Yes
NA
65Ω
Package
130µs
130µs
1.0mmX1.5mm WaferLevel Chip-Scale
Package (WLCSP) 6Bumps, 0.5mm Pitch
www.fairchildsemi.com
FPF1320 / FPF1321 — IntelliMAX™ Dual-Input Single-Output Advanced Power Switch
January 2012
Figure 1.
Typical Application
Block Diagram
TRCB
VOUT
VINA
Output Discharge
(Optinal)
FPF1320/21
Turn-On Slew Rate
Controlled Driver
TRCB
VINB
Turn-On Slew Rate
Controlled Driver
CONTROL
LOGIC
SEL
GND
FPF1320 / FPF1321 — IntelliMAX™ Dual-Input Single-Output Advanced Power Switch
Application Diagram
EN
Figure 2.
Functional Block Diagram (Output Discharge Path for FPF1321 Only)
© 2011 Fairchild Semiconductor Corporation
FPF1320 / FPF1321 • Rev. 1.0.0
www.fairchildsemi.com
2
Figure 3.
Pin Configuration in Package View with Pin 1 Indicator
EN
VIN A
VIN A
EN
A1
A2
A2
A1
SEL
VOUT
VOUT
SEL
B1
B2
B2
B1
GND
VIN B
VIN B
GND
C1
C2
C2
C1
Top View
Figure 4.
Bottom View
Pin Assignments
Pin Description
Pin #
Name
A1
EN
Enable input. Active HIGH. There is an internal pull-down resistor at the EN pin.
B1
SEL
Input power selection inputs. See Table 1. 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.
Table 1.
Description
FPF1320 / FPF1321 — IntelliMAX™ Dual-Input Single-Output Advanced Power Switch
Pin Configuration
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
© 2011 Fairchild Semiconductor Corporation
FPF1320 / FPF1321 • Rev. 1.0.0
www.fairchildsemi.com
3
Stresses exceeding the Absolute Maximum Ratings may damage the device. The device may not function or be
operable above the recommended operating conditions and stressing the parts to these levels is not recommended.
In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability.
The absolute maximum ratings are stress ratings only.
Symbol
Parameters
VIN
VINA, VINB, VSEL, VEN, VOUT to GND
ISW
Maximum Continuous Switch Current per Channel
PD
Total Power Dissipation at TA=25°C
TSTG
Operating and Storage Junction Temperature
ΘJA
Thermal Resistance, Junction-to-Ambient
(1in.2 Pad of 2-oz. Copper)
ESD
Electrostatic Discharge
Capability
Min.
Max.
Unit
-0.3
6
V
1.5
A
-65
1.2
W
150
°C
(1)
85
110(2)
Human Body Model, JESD22-A114
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
°C/W
kV
Notes:
1. Measured using 2S2P JEDEC std. PCB.
2. Measured using 2S2P JEDEC PCB cold-plate method.
Recommended Operating Conditions
The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended
operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not
recommend exceeding them or designing to Absolute Maximum Ratings.
Symbol
Parameters
Min.
Max.
Unit
VIN
Input Voltage on VINA, VINB
1.5
5.5
V
TA
Ambient Operating Temperature
-40
85
°C
© 2011 Fairchild Semiconductor Corporation
FPF1320 / FPF1321 • Rev. 1.0.0
FPF1320 / FPF1321 — IntelliMAX™ Dual-Input Single-Output Advanced Power Switch
Absolute Maximum Ratings
www.fairchildsemi.com
4
VINA=VINB=1.5 to 5.5V, TA=-40 to 85°C unless otherwise noted. Typical values are at VINA=VINB=3.3V and TA=25°C.
Symbol
Parameters
Condition
Min.
Typ. Max. Unit
1.5
5.5
V
5
µA
μA
Basic Operation
VINA, VINB
Input Voltage
ISD
Shutdown Current
SEL=HIGH or LOW, EN=GND,
VOUT=GND, VINA=VINB=5.5V
IQ
Quiescent Current
IOUT=0mA, SEL=HIGH or LOW,
EN=HIGH, VINA=VINB=5.5V
12
22
VINA=VINB=5.5V, IOUT=200mA,
TA=25°C
42
60
VINA=VINB=3.3V, IOUT=200mA,
TA=25°C
50
VINA=VINB=1.8V, IOUT=200mA,
TA=25°C to 85°C
80
RON
On-Resistance
mΩ
VINA=VINB=1.5V, IOUT=200mA,
TA=25°C
VIH
VIL
VDROOP_OUT
ISEL/IEN
RSEL_PD/REN_PD
RPD
170
SEL, EN Input Logic High
Voltage
VINA, VINB=1.5V – 5.5V
SEL, EN Input Logic Low
Voltage
VINA, VINB=1.8V – 5.5V
0.65
SEL, EN Input Logic Low
Voltage
VINA, VINB=1.5V – 1.8V
0.60
1.15
V
V
Output Voltage Droop while
VINA=3.3V, VINB=5V, Switching from
Channel Switching from
Higher Input Voltage Lower VINA  VINB, RL=150Ω, COUT=1µF
Input Voltage(3)
100
mV
Input Leakage at SEL and
EN Pin
1.2
μA
Pull-Down Resistance at
SEL or EN Pin
Output Pull-Down
Resistance
7
MΩ
SEL=HIGH or LOW, EN=GND,
IFORCE=20mA, TA=25°C, FPF1321
65
Ω
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
tRCB_ON
VINA or VINB Current During
VOUT=5.5V, VINA or VINB=Short to GND
RCB
9
RCB Response Time when
Device is ON(3)
5
VINA or VINB=5V, VOUTVINA,B=100mV
15
FPF1320 / FPF1321 — IntelliMAX™ Dual-Input Single-Output Advanced Power Switch
Electrical Characteristics
μA
µs
Continued on the following page…
© 2011 Fairchild Semiconductor Corporation
FPF1320 / FPF1321 • Rev. 1.0.0
www.fairchildsemi.com
5
VINA=VINB=1.5 to 5.5V, TA=-40 to 85°C unless otherwise noted. Typical values are at VINA=VINB=3.3V and TA=25°C.
Symbol
Parameters
Condition
Min.
Typ.
Max. Unit
Dynamic Characteristics
tDON
Turn-On Delay(4)
(4)
tR
VOUT Rise Time
tON
Turn-On Time(6)
tDOFF
Turn-Off Delay(4)
tF
(4)
VOUT Fall Time
(7)
tOFF
Turn-Off Time
tDOFF
Turn-Off Delay(4,5)
tF
VOUT Fall Time(4,5)
tOFF
tTRANR
tSLH
tTRANF
tSHL
(5,7)
Turn-Off Time
Transition Time
LOW  HIGH(4)
Switch-Over Rising Delay(4)
Transition Time
HIGH  LOW(4)
Switch-Over Falling Delay(4)
VINA or VINB=3.3V, RL=150Ω, CL=1µF,
TA=25°C, SEL: HIGH,
EN: LOW  HIGH
120
130
μs
250
μs
VINA or VINB=3.3V, RL=150Ω, CL=1µF,
TA=25°C, SEL: HIGH,
EN: HIGH  LOW
15
μs
320
μs
VINA or VINB =3.3V, RL=150Ω, CL=1µF,
TA=25°C, SEL: HIGH,
EN: HIGH  LOW,
Output Discharge Mode, FPF1321
VINA=3.3V, VINB=5V,
Switching from VINA  VINB,
SEL: LOW  HIGH, EN: HIGH,
RL=150Ω, CL=1µF, TA=25°C
VINA=3.3V, VINB=5V,
Switching from VINB  VINA,
SEL: HIGH  LOW, EN: HIGH,
RL=150Ω, C=1µF, TA=25°C
Notes:
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 5.
5. FPF1321 output discharge is enabled during off.
6. tON=tR + tDON.
7. tOFF=tF + tDOFF.
© 2011 Fairchild Semiconductor Corporation
FPF1320 / FPF1321 • Rev. 1.0.0
μs
335
μs
6
μs
110
μs
116
μs
3
μs
1
μs
45
μs
5
μs
FPF1320 / FPF1321 — IntelliMAX™ Dual-Input Single-Output Advanced Power Switch
Electrical Characteristics (Continued)
www.fairchildsemi.com
6
Figure 5.
© 2011 Fairchild Semiconductor Corporation
FPF1320 / FPF1321 • Rev. 1.0.0
Dynamic Behavior Timing Diagram
FPF1320 / FPF1321 — IntelliMAX™ Dual-Input Single-Output Advanced Power Switch
Timing Diagram
www.fairchildsemi.com
7
Figure 6.
Figure 8.
Supply Current vs. Temperature
Figure 7.
Shutdown Current vs. Temperature
Figure 9.
Figure 10. RON vs. Temperature
Supply Current vs. Supply Voltage
Shutdown Current vs. Supply Voltage
FPF1320 / FPF1321 — IntelliMAX™ Dual-Input Single-Output Advanced Power Switch
Typical Characteristics
Figure 11. RON vs. Supply Voltage
Continued on the following page…
© 2011 Fairchild Semiconductor Corporation
FPF1320 / FPF1321 • Rev. 1.0.0
www.fairchildsemi.com
8
Figure 12. VIL vs. Temperature
Figure 13. VIL vs. Supply Voltage
Figure 14. VIH vs. Temperature
Figure 15. VIH vs. Supply Voltage
Figure 16. VIH / VIL vs. Supply Voltage
Figure 17. RSEL_PD and REN_PD vs. Temperature
FPF1320 / FPF1321 — IntelliMAX™ Dual-Input Single-Output Advanced Power Switch
Typical Characteristics
Continued on the following page…
© 2011 Fairchild Semiconductor Corporation
FPF1320 / FPF1321 • Rev. 1.0.0
www.fairchildsemi.com
9
Figure 18. RSEL_PD and REN_PD vs. Supply Voltage
Figure 19. tDON and tDOFF vs. Temperature
Figure 20. tR and tF with FPF1320 vs. Temperature
Figure 21. tR and tF with FPF1321 vs. Temperature
Figure 22. Transition Time vs. Temperature
Figure 23. Switch Over Time vs. Temperature
FPF1320 / FPF1321 — IntelliMAX™ Dual-Input Single-Output Advanced Power Switch
Typical Characteristics
Continued on the following page…
© 2011 Fairchild Semiconductor Corporation
FPF1320 / FPF1321 • Rev. 1.0.0
www.fairchildsemi.com
10
Figure 25. IRCB vs. Temperature
Figure 24. TRCB Trip and Release vs. Temperature
Figure 27. Turn-On Response
(VINA=3.3V, CIN=1µF, COUT=1µF, RL=150Ω, SEL=LO)
Figure 26. RPD with FPF1321 vs. Temperature
Figure 28. Turn-Off Response with FPF1320
(VINA=3.3V, CIN=1µF, COUT=1µF, RL=150Ω,
SEL=LOW)
FPF1320 / FPF1321 — IntelliMAX™ Dual-Input Single-Output Advanced Power Switch
Typical Characteristics
Figure 29. Turn-Off Response with FPF1321
(VINA=3.3V, CIN=1µF, COUT=1µF, RL=150Ω
SEL=LOW)
Continued on the following page…
© 2011 Fairchild Semiconductor Corporation
FPF1320 / FPF1321 • Rev. 1.0.0
www.fairchildsemi.com
11
Figure 30. Power Source Transition from 3.3V to 5V
(VINA=3.3V, VINB=5V, CIN=1µF, COUT=1µF,
RL=150Ω)
Figure 33. TRCB During On (VINA=5V, VOUT=6V,
CIN=1µF, COUT=1µF, EN=HIGH, No RL)
Figure 32. TRCB During Off (VINA=VINB=Floating,
VOUT=5V, CIN=1µF, COUT=1µF, EN=LOW, No RL)
© 2011 Fairchild Semiconductor Corporation
FPF1320 / FPF1321 • Rev. 1.0.0
Figure 31. Power Source Transition from 5V to 3.3V
(VINA=3.3V, VINB=5V, CIN=1µF, COUT=1µF,
RL=150Ω)
FPF1320 / FPF1321 — IntelliMAX™ Dual-Input Single-Output Advanced Power Switch
Typical Characteristics
www.fairchildsemi.com
12
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 50mΩ
P-channel MOSFET and controller capable of
functioning over a wide input operating range of 1.5V to
5.5V per channel. The EN and SEL pins are activeHIGH, 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
65Ω output discharge path during off.
Power Source Selection
Input Capacitor
FPF1320/1 adopts an advanced break-before-make
control, which can result in minimized output voltage
drop during the transition time.
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.
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.
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
1µF ceramic capacitor, CIN, placed close to the pins, is
usually sufficient. Higher-value CIN can be used to
reduce more the voltage drop.
Output Capacitor
Capacitor COUT of at least 1µF 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.
Inrush Current
True Reverse-Current Blocking
Inrush current occurs when the device is turned on.
Inrush current is dependent on output capacitance and
slew rate control capability, as expressed by:
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.
I INRUSH  COUT 
VIN  VINITIAL
 I LOAD
tR
Board Layout
(1)
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.
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.
Higher inrush current causes higher input voltage drop,
depending on the distributed input resistance and input
capacitance. High inrush current can cause problems.
FPF1320 / FPF1321 — IntelliMAX™ Dual-Input Single-Output Advanced Power Switch
Operation and Application Description
FPF1320/1 has a 130µs of slew rate capability under
3.3VIN at 1µF of COUT and 150Ω of RL so inrush current
and input voltage drop can be minimized.
© 2011 Fairchild Semiconductor Corporation
FPF1320 / FPF1321 • Rev. 1.0.0
www.fairchildsemi.com
13
0.03 C
E
2X
F
A
(Ø0.350)
SOLDER MASK
OPENING
B
(Ø0.250)
Cu Pad
A1
(1.00)
BALL A1
INDEX AREA
D
(0.50)
0.03 C
2X
TOP VIEW
RECOMMENDED LAND PATTERN
(NSMD PAD TYPE)
0.06 C
0.625
0.539
0.05 C
C
0.332±0.018
0.250±0.025
E
SEATING PLANE
D
SIDE VIEWS
NOTES:
A. NO JEDEC REGISTRATION APPLIES.
0.005
Ø0.315 +/- .025
6X
0.50
C
1.00
B
A
0.50
(Y) ±0.018
1 2
F
(X) ±0.018
BOTTOM VIEW
C A B
B. DIMENSIONS ARE IN MILLIMETERS.
C. DIMENSIONS AND TOLERANCE
PER ASMEY14.5M, 1994.
D. DATUM C IS DEFINED BY THE SPHERICAL
CROWNS OF THE BALLS.
E. PACKAGE NOMINAL HEIGHT IS 582 MICRONS
±43 MICRONS (539-625 MICRONS).
F. FOR DIMENSIONS D, E, X, AND Y SEE
PRODUCT DATASHEET.
G. DRAWING FILNAME: MKT-UC006AFrev2.
Figure 34. 6 Ball, 1.0 x 1.5mm, Wafer-Level Chip-Scale Package (WLCSP)
FPF1320 / FPF1321 — IntelliMAX™ Dual-Input Single-Output Advanced Power Switch
Physical Dimensions
Product-Specific Dimensions
Product
D
E
X
Y
FPF1320UCX
1460µm+/-30µm
960µm+/-30µm
230µm
230µm
FPF1321UCX
1460µm+/-30µm
960µm+/-30µm
230µm
230µm
Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner
without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or
obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the
warranty therein, which covers Fairchild products.
Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:
http://www.fairchildsemi.com/packaging/.
© 2011 Fairchild Semiconductor Corporation
FPF1320 / FPF1321 • Rev. 1.0.0
www.fairchildsemi.com
14
FPF1320 / FPF1321 — IntelliMAX™ Dual-Input Single-Output Advanced Power Switch
© 2011 Fairchild Semiconductor Corporation
FPF1320 / FPF1321 • Rev. 1.0.0
www.fairchildsemi.com
15
FPF1320 / FPF1321 — IntelliMAX™ Dual-Input Single-Output Advanced Power Switch
© 2011 Fairchild Semiconductor Corporation
FPF1320 / FPF1321 • Rev. 1.0.0
www.fairchildsemi.com
16
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