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Fairchild Semiconductor Electronic Components Datasheet

FAN5400 Datasheet

USB-Compliant Single Cell Li-Ion Switching Charger

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www.DataSheet.co.kr
November 2010
FAN5400 Family
USB-Compliant Single-Cell Li-Ion Switching Charger with
USB-OTG Boost Regulator
Features
ƒ Fully Integrated, High-Efficiency Charger for Single-Cell
Li-Ion and Li-Polymer Battery Packs
ƒ Faster Charging than Linear
ƒ Charge Voltage Accuracy: ±0.5% at 25°C
±1% from 0 to 125°C
ƒ ±5% Input Current Regulation Accuracy
ƒ ±5% Charge Current Regulation Accuracy
ƒ 20V Absolute Maximum Input Voltage
ƒ 6V Maximum Input Operating Voltage
ƒ 1.25A Maximum Charge Rate
ƒ Programmable through High-Speed I2C Interface
(3.4Mb/s) with Fast Mode Plus Compatibility
Input Current
Fast-Charge / Termination Current
Charger Voltage
Termination Enable
ƒ 3MHz Synchronous Buck PWM Controller with Wide
Duty Cycle Range
ƒ Small Footprint 1μH External Inductor
ƒ Safety Timer with Reset Control
ƒ 1.8V Regulated Output from VBUS for Auxiliary Circuits
ƒ Weak Input Sources Accommodated by Reducing
Charging Current to Maintain Minimum VBUS Voltage
ƒ Low Reverse Leakage to Prevent Battery Drain to VBUS
ƒ 5V, 300mA Boost Mode for USB OTG for 2.5 to 4.5V
Battery Input
Applications
ƒ Cell Phones, Smart Phones, PDAs
ƒ Tablet, Portable Media Players
ƒ Gaming Device, Digital Cameras
Description
The FAN5400 family (FAN540X) combines a highly integrated
switch-mode charger, to minimize single-cell Lithium-ion (Li-
ion) charging time from a USB power source, and a boost
regulator to power a USB peripheral from the battery.
The charging parameters and operating modes are
programmable through an I2C Interface that operates up to
3.4Mbps. The charger and boost regulator circuits switch at
3MHz to minimize the size of external passive components.
The FAN540X provides battery charging in three phases:
conditioning, constant current, and constant voltage.
To ensure USB compliance and minimize charging time, the
input current is limited to the value set through the I2C host.
Charge termination is determined by a programmable
minimum current level. A safety timer with reset control
provides a safety backup for the I2C host.
The integrated circuit (IC) automatically restarts the charge
cycle when the battery falls below an internal threshold. If the
input source is removed, the IC enters a high-impedance
mode with leakage from the battery to the input prevented.
Charge status is reported back to the host through the I2C
port. Charge current is reduced when the die temperature
reaches 120°C.
The FAN540X can operate as a boost regulator on
command from the system. The boost regulator includes a
soft-start that limits inrush current from the battery.
The FAN540X is available in a 1.96 x 1.87mm, 20-bump,
0.4mm pitch WLCSP package.
VBUS
CBUS
1μF
PMID
CMID
4.7μF
SDA
SCL
DISABLE
OTG/USB#
STAT
FAN540X
SW L1 1μH
PGND COUT
CSIN
0.1μF
RSENSE
68mΩ
+ Battery
VBAT
VREG
CREG
SYSTEM
LOAD
1μF
CBAT
10μF
All trademarks are the property of their respective owners.
© 2008 Fairchild Semiconductor Corporation
FAN5400 Family • Rev. 1.0.2
Figure 1. Typical Application (FAN5403-05 Pinout)
www.fairchildsemi.com
Datasheet pdf - http://www.DataSheet4U.net/


Fairchild Semiconductor Electronic Components Datasheet

FAN5400 Datasheet

USB-Compliant Single Cell Li-Ion Switching Charger

No Preview Available !

www.DataSheet.co.kr
Ordering Information
Part Number
FAN5400UCX
FAN5401UCX
FAN5402UCX
FAN5403UCX
FAN5404UCX
FAN5405UCX
Temperature Range
-40 to 85°C
-40 to 85°C
-40 to 85°C
-40 to 85°C
-40 to 85°C
-40 to 85°C
Package
20- Bump, Wafer-
Level Chip-Scale
Package (WLCSP),
0.4mm Pitch,
Estimated Size: 1.96
x 1.87mm
PN Bits: IC_INFO[4:3]
01
00
01
10
11
10
Packing Method
Tape and Reel
Tape and Reel
Tape and Reel
Tape and Reel
Tape and Reel
Tape and Reel
Table 1. Feature Comparison Summary
Part PN Bits:
Number REG3[4:3]
FAN5400
FAN5401
FAN5402
FAN5403
FAN5404
FAN5405
01
00
01
10
11
10
Slave
Address
1101011
1101011
1101011
1101011
1101011
1101010
Automatic
Charge
Yes
No
Yes
Yes
No
Yes
Special
Charger(1)
No
No
No
Yes
Yes
Yes
Safety
Limits
No
No
No
Yes
Yes
Yes
Battery
Absent
Behavior
OFF
OFF
ON
OFF
OFF
ON
Note:
1. Special charger is a current limited charger that is not a USB compliant source.
E2 Pin
AUXPWR
(Connect to
VBAT)
DISABLE
VREG
(E3 Pin)
PMID
1.8V
Table 2. Recommended External Components
Component
Description
Vendor
Parameter Typ.
L1
CBAT
CMID
CBUS
1μH, 20%, 1.3A, 2016
10μF, 20%, 6.3V, X5R, 0603
4.7μF, 10%, 6.3V, X5R, 0603
1.0μF, 10%, 25V, X5R, 0603
Murata: LQM2MPN1R0M
or Equivalent
Murata: GRM188R60J106M
TDK: C1608X5R0J106M
Murata: GRM188R60J475K
TDK: C1608X5R0J475K
Murata GRM188R61E105K
TDK:C1608X5R1E105M
L
DCR (Series R)
C
C(2)
C
1.0
85
10
4.7
1.0
Note:
2. 6.3V rating is sufficient for CMID since PMID is protected from over-voltage surges on VBUS by Q3 (Figure 3).
Unit
μH
mΩ
μF
μF
μF
© 2008 Fairchild Semiconductor Corporation
FAN5400 Family • Rev. 1.0.2
2
www.fairchildsemi.com
Datasheet pdf - http://www.DataSheet4U.net/


Part Number FAN5400
Description USB-Compliant Single Cell Li-Ion Switching Charger
Maker Fairchild Semiconductor
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FAN5400 Datasheet PDF






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