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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
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February 2015
© 2014 Fairchild Semiconductor Corporation www.fairchildsemi.com
FPF2487 • Rev. 1.4
FPF2487 Dual Channel Over-Voltage Protection Load Switch
FPF2487
Dual Channel Over-Voltage Protection Load Switch
Features
Dual Channel Power Switch (VBUS and VIF)
Surge Protection under IEC 61000-4-5
- VBUS: ±100 V
- VIF: ± 40 V
Input Voltage Range
- VBUS: 2.5 V ~ 23 V
- VIF: 3.1 V ~ 5.5 V
Max. Continuous Current Capability
- VBUS: 2.5 A
- VIF: 6 A
Ultra Low On-Resistance
- VBUS: Typ. 33 mΩ
- VIF: Typ. 11 mΩ
Over-Voltage Protection
- VBUS: 5.95 V ± 50 mV
- VIF: 5.25 V ± 250 mV
LDO Output based VBUS_DET for VBUS Detection
Active Low Control for VBUS Path
OTG Functionality on VBUS Path
Conditional Active High Control for VIF Path
Reverse-Current Blocking for VIF Path
Applications
Mobile Handsets and Tablets
Wearable Devices
Description
The FPF2487 features a 2-channel power switch, which
offers surge protection and Over-Voltage Protection
(OVP), to protect downstream components and
enhancing overall system robustness.
Channel one (VBUS) is an active-low, 28 V/2.5 A rated,
power MOSFET switch with an internal clamp
supporting ±100 V surge protection, highly accurate
fixed OVP at 5.95 V 50 mV), and OTG functionality.
Channel two (VIF) is a conditional active-high, 6 V/6 A
rated, power MOSFET switch with an integrated TVS
supporting ±40 V surge protection and fixed OVP at
5.25 V 250 mV). VIF also provides Reverse Current
Blocking (RCB) during its OFF state to minimize
leakage current.
VBUS_DET is paired with always ON LDO to power
downstream devices even with VBUS is greater than
2.5 V, even when disabled through the ONB pin. This
provides power sequence control or a host controlled
configuration in system.
The FPF2487 is available in a 15-bump, 1.6 mm x
2.2 mm Wafer-Level Chip-Scale Package (WLCSP) with
0.4 mm pitch.
Related Resources
http://www.fairchildsemi.com/
Ordering Information
Part Number
Operating Temperature
Range
Top Mark
Package
Packing
Method
FPF2487UCX
-40°C +85°C
GX
15-Ball, 0.4 mm Pitch WLCSP
Tape & Reel
© 2014 Fairchild Semiconductor Corporation www.fairchildsemi.com
FPF2487 Rev. 1.4 2
FPF2487 Dual Channel Over-Voltage Protection Load Switch
Application Diagram
FPF2487
VBUS VOUT
Travel
Adapter
ON
ONB
PMIC
BAT
BATTERY
Battery
Charger System
Test JIG VIF
GND
VBUS_DET
Figure 1. Typical Application
Block Diagram
THERMAL
SHUTDOWN
CONTROL
LOGIC
w/ Charge
pump ON
GND
ONB
RCB
OVLO
UVLO
OVLO
BAT
VOUT
VBUS
VIF
TVS
TVS
FPF2487
VBUS_DET
LDO
VBUS
Figure 2. Functional Block Diagram
© 2014 Fairchild Semiconductor Corporation www.fairchildsemi.com
FPF2487 Rev. 1.4 3
FPF2487 Dual Channel Over-Voltage Protection Load Switch
Pin Configuration
VOUT VOUT
BAT
ONB
BAT
VBUS
VBUS
VIF
GND VBUS_
DET
GND
VIF
BAT VIF
ON
A
B
C
D
E
1 2 3
VBUS
VBUS_
DET
VIF
VIF
ON
ONB VOUT
VOUT
BAT
BAT
VBUS
VIF
GND
GND
BAT
A
B
C
D
E
3 2 1
Figure 3. Pin Configuration (Top View)
Figure 4. Pin Configuration (Bottom View)
Pin Definitions
Name
Bump
Type
Description
VBUS
B2, B3
Input/Supply
Switch Input and Device Supply
VOUT
A1, A2
Output
Switch Output to Load
VIF
D2, D3, E3
Input/Supply
Switch Input and Device Supply
BAT
D1, E1, E2
Output
Switch Output to Battery
VBUS_DET
C3
Output
Regulated Output according to VBUS
ON
B1
Input
Active HIGH: VIF path only and when BAT is valid prior to VIF
ONB
A3
Input
Active LOW: VBUS path only
GND
C1, C2
GND
Ground
© 2014 Fairchild Semiconductor Corporation www.fairchildsemi.com
FPF2487 Rev. 1.4 4
FPF2487 Dual Channel Over-Voltage Protection Load Switch
Absolute Maximum Ratings
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
Parameter
Min.
Max.
Unit
VBUS
VBUS to GND & VBUS to VOUT=GND or Float
-0.3
29.0
V
VIF
VIF to GND
-2(1)
6
V
VOUT
VOUT to GND
-0.3
VIN + 0.3
V
BAT
BAT to GND
-0.3
VIF + 0.3
V
VBUS_DET
VBUS_DET to GND
8
V
VON(B)
ONB or ON to GND
6
V
IIN_VBUS
Continuous VBUS Current
2.5
A
Peak VBUS Current (5 ms)
5
A
IIN_VIF
Continuous VIF Current
6
A
Peak VIF Current (5 ms)
12
A
IIN_VBUS_DET
Continuous VBUS_DET Current
1
mA
tPD
Total Power Dissipation at TA=25°C
1.54
W
TSTG
Storage Temperature Range
-65
+150
°C
TJ
Maximum Junction Temperature
+150
C
TL
Lead Temperature (Soldering, 10 Seconds)
+260
C
JA
Thermal Resistance, Junction-to-Ambient(2) (1-in.2 Pad of 2-oz. Copper)
81(2)
°C/W
ESD
Electrostatic Discharge
Capability
IEC 61000-4-2 System
Level ESD
Air Discharge
15
kV
Contact Discharge
8
Human Body Model,
ANSI/ESDA/JEDEC JS-
001-2012
All Pins
2
Charged Device Model,
JESD22-C101
All Pins
1
Surge
IEC 61000-4-5,
Surge Protection
VBUS
±100
V
VIF
±40
Notes:
1. Pulsed, 50 ms maximum non-repetitive.
2. Measured using 2S2P JEDEC std. PCB.
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
Parameter
Min.
Max.
Unit
VBUS
Supply Voltage, VBUS
2.5
23.0
V
VIF
Supply Voltage, VIF
3.1
5.5
V
CIN / COUT
Input and Output Capacitance
0.1
μF
CVBUS_DET
Output Capacitance
0.47
μF
TA
Operating Temperature
-40
+85
°C
© 2014 Fairchild Semiconductor Corporation www.fairchildsemi.com
FPF2487 Rev. 1.4 5
FPF2487 Dual Channel Over-Voltage Protection Load Switch
Electrical Characteristics
Unless otherwise noted, VBUS=2.5 to 23 V, VIF=3.1 to 5.5 V, TA=-40 to 85°C; Typical values are at VBUS=5 V, IIN ≤ 2 A,
VIF=4 V, CIN=0.1 μF and TA=25°C.
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Unit
Basic Operation
IQ
Input Quiescent Current
VBUS=5 V, ONB=0 V, VBUS_DET=Floating
160
250
μA
VIF=4 V
100
150
μA
IIN_Q
OVLO Supply Current
VBUS=12 V, VOUT=0 V, VBUS_DET=Floating
150
205
μA
VIF=5.5 V, BAT=0 V
100
180
μA
TSDN
Thermal Shutdown(3)
140
°C
TSDN_HYS
Thermal Shutdown
Hysteresis(3)
20
°C
VBUS to VOUT Switch
VBUS_CLAMP
Input Clamping Voltage
IIN=10 mA
35
V
VBUS_OVLO
Over-Voltage Trip Level
VBUS Rising, TA=-40 to 85°C
5.90
5.95
6.00
V
VBUS Falling, TA=-40 to 85°C
5.8
V
RON_VBUS
On-Resistance
VBUS=5 V, IOUT=1 A, TA=25°C
33
39
mΩ
VBUS=9 V, IOUT=1 A, TA=25°C
33
39
mΩ
tDEB_VBUS
Debounce Time
Time from VBUS_MIN < VBUS < VBUS_OVLO to
VOUT=0.1 × VBUS
15
ms
tSTART_VBUS
Soft-Start Time
Time from VBUS=VBUS_MIN to 0.1 × VBUS_DET
30
ms
tON_VBUS
Switch Turn-On Time
RL=100 Ω, CL=22 µF, VOUT from 0.1 × VBUS to
0.9 × VBUS
3
ms
tOFF_VBUS
Switch Turn-Off Time
RL=100 Ω, No CL, VBUS > VBUS_OVLO to
VOUT=0.8 × VBUS
150
ns
VIF to BAT Switch
VIF_CLAMP
Input Clamping Voltage
IIN=10 mA
6.4
V
VIF_UVLO
Under-Voltage Trip Level
VIF Rising, TA=-40 to 85°C
2.85
3.05
V
VIF Falling, TA=-40 to 85°C
2.7
V
VIF_OVLO
Over-Voltage Trip Level
VIF Rising, TA=-40 to 85°C
5.00
5.25
5.50
V
VIF Falling, TA=-40 to 85°C
4.8
V
RON_VIF
On-Resistance
VIF=3.1 V, IOUT=1 A, TA=25°C
10
15
mΩ
IRCB
Reverse Current
VIF=0 V, BAT=4.4 V
3
7
μA
tDEB_VIF
Debounce Time
Time from VIF_UVLO < VIF < VIF_OVLO to
BAT=0.1 × VIF
15
ms
tQUAL_VIF
Qualification Tim
BAT > VIH_BAT First, Time from ON >
VIH_ON(B) to BAT Voltage Increase
2
ms
tON_VIF
Switch Turn-On Time
RL=100 Ω, CL=22 µF, VOUT from 0.1 × VIF to
0.9 × VIF
2
ms
tOFF_VIF
Switch Turn-Off Time
RL=100 Ω, No CL,VIN > VOVLO to VOUT=0.8 × VIF
150
ns
Note:
3. Guaranteed by characterization and design. Continued on the following page…
© 2014 Fairchild Semiconductor Corporation www.fairchildsemi.com
FPF2487 Rev. 1.4 6
FPF2487 Dual Channel Over-Voltage Protection Load Switch
Electrical Characteristics (Continued)
Unless otherwise noted, VBUS=2.5 to 23 V, VIF=3.1 to 5.5 V, TA=-40 to 85°C; Typical values are at VBUS=5 V, IIN ≤ 2 A,
VIF=4 V, CIN=0.1 μF and TA=25°C.
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Unit
VBUS_DET
VBUS_DET
VBUS_DET Output Voltage
VBUS=6.5 V, IBUS_DET=0 mA, TA=25°C
6.0
6.5
V
VBUS=15 V, IBUS_DET=0 mA, TA=25°C
6.0
7.0
7.9
V
VBUS=6.5 V, IBUS_DET=1 mA, TA=25°C
6.0
6.3
6.5
V
VBUS=15 V, IBUS_DET=1 mA, TA=25°C
6.0
7.0
7.9
V
Digital Signals
VIH_ON(B)
Enable HIGH Voltage
VBUS, VIF Operating Range
1.2
V
VIL_ON(B)
Enable LOW Voltage
VBUS, VIF Operating Range
0.5
V
VIH_BAT
BAT Presence HIGH Voltage
BAT Rising
2.5
V
VIL_BAT
BAT Presence LOW Voltage
BAT Falling
1.7
V
IVBUS_DET_LEAK
VBUS_DET Leakage Current
VVBUS_DET=5 V, VBUS=0 V
1
µA
ON(B)_Leak
ON(B) Leakage Current
VBUS=5 V, VOUT=Float
1
µA
© 2014 Fairchild Semiconductor Corporation www.fairchildsemi.com
FPF2487 Rev. 1.4 7
FPF2487 Dual Channel Over-Voltage Protection Load Switch
Timing Diagrams
VBUS
VOUT
ONB
tSTART_VBUS
Measure VBUS > VBUS_MIN
to 0.1*VBUS_DET
tDEB_VBUS
tON_VBUS
Measure
@ 10/90%
tOFF_VBUS
Measure @
80% ONB to
VOUT = 0.8*VBUS
VBUS_DET
Figure 5. Timing for VBUS Power Up/Down and Normal Operation
VBUS
VOUT
VBUS_DET
tSTART_VBUS
tOFF_VBUS
Measure @
OVLO_Rising to
VOUT = 0.8*VIN
VOVLO tSTART_VBUS
Figure 6. Timing for VBUS OVLO Operation (ONB=LOW)
VBUS
VBUS_DET
VBUS < OVLO
VBUS > OVLO
OVLO
VBUS_Min
tSTART_VBUS
Measure VBUS_Min to
0.1*VBUS_DET
Figure 7. Always ON VBUS_DET Operation (ONB=HIGH)
© 2014 Fairchild Semiconductor Corporation www.fairchildsemi.com
FPF2487 Rev. 1.4 8
FPF2487 Dual Channel Over-Voltage Protection Load Switch
Timing Diagrams (Continued)
VIF
BAT
tDEB_VIF
tON_VIF
Measure
@ 10/90%
tOFF_VIF
Measure @
UVLO_Falling to
VOUT = 0.8*VIF
Figure 8. Timing for VIF Power Up/Down and Normal Operation (ON=Don’t Care)
VIF (>BAT)
BAT (> VIH_BAT)
ON
tDEB_VIF
Figure 9. Timing for VIF Power Up/Down and Normal Operation with ON Pin
VIF
BAT
tOFF_VIF
Measure @
OVLO_Rising
BAT = 0.8*VIF
VOVLO
tDEB_VIF
Figure 10. Timing for VIF OVLO Operation (ON=Don’t Care)
© 2014 Fairchild Semiconductor Corporation www.fairchildsemi.com
FPF2487 Rev. 1.4 9
FPF2487 Dual Channel Over-Voltage Protection Load Switch
VIF Turn-On Qualification State Diagram
Figure 11. VIF Turn-On Qualification State Diagram
Notes:
4. Case #1 is reflecting removable battery system without ON signal.
5. Case #2 is reflecting embedded battery system with ON signal.
Product-Specific Package Dimensions
D
E
X
Y
2200 μm ±30 μm
1600 μm ±30 μm
400 μm ±18 μm
300 μm ±18 μm
www.onsemi.com
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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/PatentMarking.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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