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FAN54151
High Current Charging Switch with Protection
Features
Integrated Back-to-Back Common Source
N-channel MOSFETs with combined RON = 17 mΩ
Over-Voltage Input Protection to +20 V
Hardware-based Safety and Protection for:
- Input Over-Voltage Protection and Lockout
- Input Under-Voltage Lockout
- Fast and Slow Output Over-Voltage Protection
- Over-Current Protection with Selectable Limits
- Safe Operating Temperature
- Charger Detach Protection
True Reverse Current Blocking (TRCB)
Configurable Host Interrupts
2
Fully Integrated I C Slave with Configurable
Address
Applications
High Current Battery Charging for:
- Mobile Devices
- Tablets
Description
2
The FAN54151 is a low loss, high current, I C controlled
switch.
Built in protection monitors the ICs input and output for
over- and under-voltage as well as over- and undercurrent. The system protection is provided by controlling
the gate voltages of a pair of N-channel MOSFETs to
ensure that the output stays within a safe operating
range. If a fault is detected, the FAN54151 will turn off
the N-channel FETs and notify the host system via
configurable interrupts.
Additionally, the FAN54151 includes an integrated
temperature sensor and battery cell voltage monitor that
provides additional protection.
The FAN54151 utilizes a 20-Bump, 0.5 mm pitch
WLCSP package.
From
Power Path
Charger
From
VBUS
VIN
VOUT
COUT
CIN
PACK+
FAN54151
Battery
Pack
µProcessor
INT_N
SCL
VSNSP
PSNS+
VSNSN
PSNS-
SDA
ADR
RESET_N
PACK-
GND
Figure 1.
© 2015 Fairchild Semiconductor Corporation
FAN54151 • Rev. 1.0
Typical Application
www.fairchildsemi.com
FAN54151 – High Current Charging Switch with Protection
April 2016
F
D
BALL A1
INDEX AREA
A
B
1.50
0.03 C
BOTTOM OF Cu PAD
A1
2X
F
E
2.00
Solder Mask
Opening
0.500
0.03 C
0.500
2X
0.06 C
0.05 C
C
SEATING PLANE
D
0.005
1.50
C A B
NOTES:
A. NO JEDEC REGISTRATION APPLIES.
0.50
20X
B. DIMENSIONS ARE IN MILLIMETERS.
C. DIMENSIONS AND TOLERANCES
PER ASME Y14.5M, 2009.
E
D
2.00
0.50
C
D. SEATING PLANE IS DEFINED BY THE
SPHERICAL CROWNS OF THE BALLS.
B
E. PACKAGE NOMINAL HEIGHT IS 582 MICRONS
A
1
2
3
4
BOTTOM VIEW
F
F. FOR DIMENSIONS D,E,X,+Y SEE DATASHEET
G. DRAWING FILENAME: MKT-UC020ABrev3.
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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