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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
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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.
FPF3042
IntelliMAX™ 18 V-Rated, Dual-Input, Single-Output,
Power-Source-Selector Switch
Features
Description
The FPF3042 is an 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 4.0 V
to 12.4 V at both VBUS and VIN to align with the needs of
high-voltage portable device power rails.
Dual-Input, Single-Output Load Switch (DISO)
Input Supply Operating Range:
- 4.0 V~12.4 V at VIN
- 4.0 V~12.4 V at VBUS
Typical RON:
95 mΩ at VIN=5 V
70 mΩ at VBUS=5 V
Both VIN and VBUS have the over-voltage protection of
14 V (typical) to avoid damage to the system.
Bidirectional Switch for VIN and VBUS
Slew Rate Controlled:
-
VIN and VBUS bidirectional 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).
50 µs at VIN for < 4.7 µF COUT
90 µs at VBUS for < 4.7 µF COUT
Maximum ISW: 2.7 A per Channel
Break-Before-Make Transition
FPF3042 is available in 1.76 mm x 1.96 mm WaferLevel Chip-Scale Package (WLCSP), 16-bump, 0.4 mm
pitch.
Under-Voltage Lockout (UVLO)
Over-Voltage Lockout (OVLO)
Thermal Shutdown
Applications
Logic CMOS IO Meets JESD76 Standard for GPIO
Interface and Related Power Supply Requirements
Input Power-Selection Block Supporting USB and
Wireless Charging
ESD Protected:
Smart Phone / Tablet PC
-
Human Body Model: >3 kV
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
FPF3042UCX
TR
DISO
© 2013 Semiconductor Components Industries, LLC.
FPF3042 • Rev. 1.0.1
Typical RON per
Channel at 5 VIN
Rise Time (tR)
95 mΩ for VIN
50 µs for VIN
70 mΩ for VBUS
90 µs for VBUS
Package
16-Bump, 1.76 mm x 1.96 mm,
Wafer-Level Chip-Scale Package
(WLCSP), 0.4 mm Pitch
www.fairchildsemi.com
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FPF3042 — IntelliMAX™ 18 V-Rated, Dual-Input, Single-Output, Power-Source-Selector Switch
April 2017
VIN
VOUT
VOUT
VIN
CIN1
VIN
VOUT
VOUT
COUT
VBUS
VBUS
CIN2
VBUS
OFF ON
FPF3042
EN
V_I/O
DF_IN
VIN_ SEL
GND
Other_VIN_ AVA
GND
Figure 1. Typical Application
EN
FPF3042
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
© 2013 Semiconductor Components Industries, LLC.
FPF3042 • Rev. 1.0.1
2
FPF3042 — IntelliMAX™ 18 V-Rated, Dual-Input, Single-Output, Power-Source-Selector Switch
Application Diagram
www.fairchildsemi.com
www.onsemi.com
FPP3042
VOUT
VIN
HV Power Device
SW1
VIN
VIN
VOUT
C1
OVP
VOUT
HV Power Device
SW2
VBUS
VOUT
VBUS
VCC
VBUS
C2
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
© 2013 Semiconductor Components Industries, LLC.
FPF3042 • Rev. 1.0.1
3
FPF3042 — IntelliMAX™ 18 V-Rated, Dual-Input, Single-Output, Power-Source-Selector Switch
Block Diagram
www.fairchildsemi.com
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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
Input
Input / Output
DF_IN
B2
Other_VIN_AVA
D1, D2
GND
© 2013 Semiconductor Components Industries, LLC.
FPF3042 • Rev. 1.0.1
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:
Floating = VBUS connects to VOUT.
LOW = VIN connects to VOUT.
This signal is ignored during EN=HIGH. 1 µA pull-up current
source is included.
Other Supply Input Status: Open-drain output.
HIGH-Z = both VIN and VBUS are valid.
LOW = the other power source is not valid.
FPF3042 — IntelliMAX™ 18 V-Rated, Dual-Input, Single-Output, Power-Source-Selector Switch
Pin Configuration
Ground
4
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EN
Truth Table
VIN>VUVLO VBUS>VUVLO VIN_SEL DF_IN
Other_VIN_AVA
VOUT
HIGH
X
X
LOW
X
HI-Z if VIN & VBUS >VUVLO
LOW if VIN or VBUS VUVLO
LOW if VIN or VBUS VUVLO VBUS>VUVLO VIN_SEL DF_IN
LOW
Reverse-Current Blocking (RCB)
Wireless Charging System
VOUT
YES
NO
HIGH
X
VIN
LOW
NO
YES
LOW
X
VBUS
LOW
YES
YES
LOW Floating
LOW
YES
YES
HIGH
FPF3042 can be used as 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 FPF3042 has a
100 ms transition delay. OTG Mode can be supported
without an additional power path, such as a MOSFET.
VBUS
LOW
VIN
LOW
NO
NO
X
X
Floating
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 VIN, VBUS, or EN is higher than 5.3 V. The signal
FPF3042
Travel Adaptor
PMIC
VBUS
Wireless Charging
System
with
BAT Charger &
OTG Boost &
Power Path
VOUT
VIN
FPF3042 — IntelliMAX™ 18 V-Rated, Dual-Input, Single-Output, Power-Source-Selector Switch
Operation and Application Information
Li-Pol
BAT
VIN_SEL, Other_VIN_Ava
EN, VIN_SEL, DF_IN
Figure 31. Input Power Selector for Wireless Charging System
© 2013 Semiconductor Components Industries, LLC.
FPF3042 • Rev. 1.0.1
12
www.fairchildsemi.com
www.onsemi.com
D
E
X
Y
1.96 mm ±0.03 mm
1.76 mm ±0.03 mm
0.28 mm
0.38 mm
© 2013 Semiconductor Components Industries, LLC.
FPF3042 • Rev. 1.0.1
13
FPF3042 — IntelliMAX™ 18 V-Rated, Dual-Input, Single-Output, Power-Source-Selector Switch
Product Specific Package Information
www.fairchildsemi.com
www.onsemi.com
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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