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Semiconductor data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s
technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA
Class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended
or unauthorized application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out
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is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
FPF3040
IntelliMAX™ 18 V-Rated Dual Input Single Output
Power-Source-Selector Switch
Description
Features
Dual-Input, Single-Output Load Switch
Input Supply Operating Range:
- 4~10.5 V at VIN
- 4~6.5 V at VBUS
Typical RON:
95 mΩ at VIN=5 V
70 mΩ at VBUS=5 V
Bi-Directional Switch for VIN and VBUS
Slew Rate Controlled:
-
50 µs at VIN for < 4.7 µF COUT
90 µs at VBUS for < 4.7 µF COUT
Maximum ISW: 2 A Per Channel
ESD Protected:
Break-Before-Make Transition
The FPF3040 is a 18 V-rated Dual-Input Single-Output
(DISO) load switch consisting of two channels of slewrate-controlled, low-on-resistance, N-channel MOSFET
switches with protection features. The slew-ratecontrolled turn-on characteristic prevents inrush current
and the resulting excessive voltage droop on the input
power rails. The input voltage range operates from
4 V to 6.5 V at VBUS and from 4 V to 10.5 V at VIN to
align with the needs of low-voltage portable device
power rails.
VIN and VBUS have the over-voltage protection
functionality of typical 12 V and 7.5 V, respectively, to
avoid unwanted damage to system.
VIN and VBUS bi-directional switching allows reverse
current from VOUT to VIN or VBUS for On-The-Go, (OTG)
Mode. The switching is controlled by logic input EN and
VIN_SEL is capable of interfacing directly with low-voltage
control signal General-Purpose Input / Output (GPIO).
FPF3040 is available in 1.8 mm x 2.0 mm Wafer-Level
Chip-Scale Package (WLCSP), 16-bump, 0.4 mm pitch.
Under-Voltage Lockout (UVLO)
Over-Voltage Lockout (OVLO)
Thermal Shutdown
Logic CMOS IO Meets JESD76 Standard for GPIO
Interface and Related Power Supply Requirements
-
Human Body Model: >3 kV
Applications
Input Power Selection Block Supporting USB and
Wireless Charging
Smartphone / Tablet PC
Charged Device Model: >1.5 kV
IEC 61000-4-2 Air Discharge: >15 kV
IEC61000-4-2 Contact Discharge: >8 kV
Ordering Information
Part Number
Top
Mark
Channel
FPF3040UCX
QY
DISO
© 2012 Fairchild Semiconductor Corporation
FPF3040 • Rev. 2.4.3
Typical RON per
Channel at 5VIN
Rise Time (tR)
95 mΩ for VIN
50 µs for VIN
70 mΩ for VBUS
Package
1.8 mm x 2.0 mm Wafer-Level Chip-Scale
90 µs for VBUS Package (WLCSP), 16-Bump, 0.4 mm Pitch
www.fairchildsemi.com
FPF3040 — IntelliMAX™ 18 V-Rated Dual Input Single Output Power-Source-Selector Switch
November 2014
VIN
VOUT
VOUT
VIN
CIN1
VIN
VOUT
VOUT
COUT
VBUS
VBUS
CIN2
VBUS
OFF ON
FPF3040
EN
VIN_ SEL
VI/O
DF_IN
Other_VIN_ AVA
GND GND
Figure 1. Typical Application
EN
FPF3040
VOUT
Charger
R1
20 kΩ
5V charging voltage at VOUT creates 3V at EN when
Q1 gate is LOW (OFF)
1.8V GPIO
Q1
R2
30 kΩ
Note:
Q1 gate should be HIGH (ON) when not in OTG mode.
Figure 2. Example Circuit for OTG Operation with Low-Voltage GPIO
© 2012 Fairchild Semiconductor Corporation
FPF3040 • Rev. 2.4.3
FPF3040 — IntelliMAX™ 18 V-Rated Dual Input Single Output Power-Source-Selector Switch
Application Diagram
www.fairchildsemi.com
2
FPF3040
VOUT
VIN
HV Power Device
SW1
VIN
VIN
VOUT
C1
OVP
VOUT
HV Power Device
SW2
VBUS
VOUT
VBUS
C2
VCC
VBUS
VMAX
VCC
VCC
C1
C2
EN
Startup
Reference Voltage
Reference Current
Thermal Protection
VGATE
VREF
Gate Driver
&
Logic Control
Other_VIN_AVA
TSD
VIN_SEL
DF_IN
GND
GND
Figure 3. Functional Block Diagram
© 2012 Fairchild Semiconductor Corporation
FPF3040 • Rev. 2.4.3
FPF3040 — IntelliMAX™ 18 V-Rated Dual Input Single Output Power-Source-Selector Switch
Block Diagram
www.fairchildsemi.com
3
Figure 4. Pin Assignment (Top View)
Figure 5. Pin Assignment (Bottom View)
Pin Description
Pin #
Name
Input / Output
A1, B1, C1
VBUS
Input / Output
VBUS at USB: Power input / output.
bi-directional switch when VIN_SEL = LOW.
A4, B4, C4
VIN
Input / Output
VIN Supply Input: Power input / output.
bi-directional switch when VIN_SEL = HIGH.
A2, A3, B3, C3
VOUT
Input / Output
Switch Output: Power input / output.
C2
D4
D3
EN
VIN_SEL
DF_IN
B2
Other_VIN_AVA
D1, D2
GND
© 2012 Fairchild Semiconductor Corporation
FPF3040 • Rev. 2.4.3
Input
Input / Output
Input
Output
Description
Enable: Active HIGH.
EN voltage ≥ 2.5 V can power internal circuit when VIN and VBUS
are absent.
1 MΩ pull-down resistor is included.
Supply Selector & Status: Input power source selection input
and status output. This signal is ignored during EN=LOW.
Selector input during EN=HIGH:
HIGH = switch VIN to VOUT / LOW = switch VBUS to VOUT.
Status output during EN=LOW:
HIGH = VIN is used for VOUT / LOW = VBUS is used for VOUT.
Default Supply Selector during EN=LOW: Input.
Floating = VBUS connects to VOUT.
LOW means VIN connects to VOUT.
This signal is ignored during EN=HIGH. 1 µA pull-up current
source is included.
FPF3040 — IntelliMAX™ 18 V-Rated Dual Input Single Output Power-Source-Selector Switch
Pin Configuration
Other Supply Input Status: Open-drain output.
HI-Z = both VIN and VBUS are valid.
LOW = the other power source is not valid.
Ground
www.fairchildsemi.com
4
EN
Truth Table
VIN>UVLO VBUS>UVLO VIN_SEL
DF_IN
Other_VIN_AVA
VOUT
HIGH
X
X
LOW
X
HI-Z if VIN & VBUS >UVLO
LOW if VIN or VBUS
UVLO
LOW if VIN or VBUS
UVLO VIN_SEL DF_IN VOUT
HIGH
X
X
LOW
X
VBUS
HIGH
X
X
HIGH
X
VIN
Reverse Power Supply for OTG
When EN is LOW, the input source is selected by
DF_IN and the number of valid input sources. If only
one input source is valid, or more than UVLO, the
source is selected automatically, regardless of DF_IN,
to make a charging path in case the battery is depleted.
If both VBUS and VIN have valid input sources, the input
source is selected by DF_IN. If DF_IN is LOW, VIN is
selected. If DF_IN is HIGH or floating, VBUS is selected.
DF_IN is biased HIGH with an internal 1 µA pull-up
current source.
FPF3040 has a bi-directional switch so reverse power is
allowed for On-The-Go (OTG) operation. Even if both VIN
and VBUS are not available, reverse power can be also
supported if internal control circuitry is powered by EN.
Table 3.
During FPF3040 thermal shutdown, the power switch is
turned off if junction temperature reaches over 150°C to
avoid damage.
Reverse-Current Blocking
FPF3040 supports reverse-current blocking during EN
LOW and an unselected channel.
Thermal Shutdown
Input Power Selection by DF_IN
EN VIN>UVLO VBUS>UVLO VIN_SEL DF_IN VOUT
LOW
YES
NO
HIGH
X
VIN
LOW
NO
YES
LOW
X
VBUS
LOW
YES
YES
LOW
Floating
VBUS
LOW
YES
YES
HIGH
LOW
VIN
LOW
NO
NO
X
X
Floating
Wireless Charging System
FPF3040 can be used for an input power selector
supporting Travel Adaptor (TA) and Wireless Charging
(WC) with a single-input-based battery charger or Power
Management IC (PMIC), including a charging block as
shown in Figure 31. The system can recognize an input
power source change between 5 V TA and 5 V WC
without detection circuitry because FPF3040 has a
100 ms transition delay. OTG Mode can be supported
without an additional power path, such as a MOSFET.
VIN_SEL can be the status output to indicate which input
power source is used during EN is LOW. If VIN is used,
VIN_SEL shows high. If VBUS is used, VIN_SEL shows LOW.
The voltage level of HIGH signal is 5.3 V if any one of
FPF3040 — IntelliMAX™ 18 V-Rated Dual Input Single Output Power-Source-Selector Switch
Operation and Application Information
FPF3040
Travel Adaptor
(5V)
VBUS
Wireless Charging
(5V)
VIN
PMIC
System
with
BAT Charger &
OTG Boost &
Power Path
VOUT
Li-Pol
BAT
VIN_SEL, Other_VIN_Ava
EN, VIN_SEL, DF_IN
Figure 31. Block Diagram of Input Power Selector for Wireless Charging System
© 2012 Fairchild Semiconductor Corporation
FPF3040 • Rev. 2.4.3
www.fairchildsemi.com
11
D
E
X
Y
1.96 mm ±0.03 mm
1.76 mm ±0.03 mm
0.28 mm
0.38 mm
© 2012 Fairchild Semiconductor Corporation
FPF3040 • Rev. 2.4.3
FPF3040 — IntelliMAX™ 18 V-Rated Dual Input Single Output Power-Source-Selector Switch
Product Specific Package Information
www.fairchildsemi.com
12
ON Semiconductor and
are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries.
ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent
coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein.
ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards,
regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON Semiconductor data sheets and/or
specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer
application by customer’s technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not
designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification
in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized
application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and
expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such
claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This
literature is subject to all applicable copyright laws and is not for resale in any manner.
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