Fairchild FAN5403UCX Usb-compliant single-cell li-ion switching charger Datasheet

FAN5400 Family
USB-Compliant Single-Cell Li-Ion Switching Charger with
USB-OTG Boost Regulator
Features
Description
ƒ
Fully Integrated, High-Efficiency Charger for Single-Cell
Li-Ion and Li-Polymer Battery Packs
ƒ
ƒ
Faster Charging than Linear
The FAN5400 family (FAN540X) combines a highly integrated
switch-mode charger, to minimize single-cell Lithium-ion (Liion) charging time from a USB power source, and a boost
regulator to power a USB peripheral from the battery.
ƒ
ƒ
ƒ
ƒ
ƒ
ƒ
±5% Input Current Regulation Accuracy
Charge Voltage Accuracy:
±0.5% at 25°C
±1% from 0 to 125°C
±5% Charge Current Regulation Accuracy
20V Absolute Maximum Input Voltage
6V Maximum Input Operating Voltage
1.25A Maximum Charge Rate
2
Programmable through High-Speed I C 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
ƒ
ƒ
ƒ
Small Footprint 1μH External Inductor
ƒ
ƒ
Low Reverse Leakage to Prevent Battery Drain to VBUS
Safety Timer with Reset Control
1.8V Regulated Output from VBUS for Auxiliary Circuits
Weak Input Sources Accommodated by Reducing
Charging Current to Maintain Minimum VBUS Voltage
5V, 300mA Boost Mode for USB OTG for 2.5 to 4.5V
Battery Input
The charging parameters and operating modes are
2
programmable through an I C 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
2
input current is limited to the value set through the I C host.
Charge termination is determined by a programmable
minimum current level. A safety timer with reset control
2
provides a safety backup for the I C 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.
2
Charge status is reported back to the host through the I C
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
1μF
CBUS
SDA
ƒ
ƒ
ƒ
SCL
Gaming Device, Digital Cameras
DISABLE
OTG/USB#
STAT
L1
1μH
COUT
FAN540X
RSENSE
0.1μF
68mΩ
+ Battery
CSIN
4.7μF
Applications
Tablet, Portable Media Players
PGND
PMID
CMID
Cell Phones, Smart Phones, PDAs
SW
VBAT
SYSTEM
LOAD
VREG
CREG
CBAT
10μF
1μF
Figure 1. Typical Application (FAN5403-05 Pinout)
All trademarks are the property of their respective owners.
© 2008 Fairchild Semiconductor Corporation
FAN5400 Family • Rev. 1.0.2
www.fairchildsemi.com
FAN5400 Family— USB-Compliant Single-Cell Li-Ion Switching Charger with USB-OTG Boost Regulator
November 2010
Part Number
Temperature Range
FAN5400UCX
-40 to 85°C
FAN5401UCX
-40 to 85°C
FAN5402UCX
-40 to 85°C
FAN5403UCX
-40 to 85°C
FAN5404UCX
-40 to 85°C
FAN5405UCX
-40 to 85°C
Package
PN Bits: IC_INFO[4:3]
Packing Method
01
Tape and Reel
00
Tape and Reel
01
Tape and Reel
10
Tape and Reel
11
Tape and Reel
10
Tape and Reel
20- Bump, WaferLevel Chip-Scale
Package (WLCSP),
0.4mm Pitch,
Estimated Size: 1.96
x 1.87mm
Table 1. Feature Comparison Summary
REG3[4:3]
Slave
Address
Automatic
Charge
Special
(1)
Charger
Safety
Limits
Battery
Absent
Behavior
FAN5400
01
1101011
Yes
No
No
OFF
FAN5401
00
1101011
No
No
No
OFF
FAN5402
01
1101011
Yes
No
No
ON
FAN5403
10
1101011
Yes
Yes
Yes
OFF
FAN5404
11
1101011
No
Yes
Yes
OFF
FAN5405
10
1101010
Yes
Yes
Yes
ON
Part
Number
PN Bits:
E2 Pin
VREG
(E3 Pin)
AUXPWR
(Connect to
VBAT)
PMID
DISABLE
1.8V
Note:
1. Special charger is a current limited charger that is not a USB compliant source.
Table 2. Recommended External Components
Component
Description
Vendor
Parameter
Typ.
Unit
L1
1μH, 20%, 1.3A, 2016
Murata: LQM2MPN1R0M
or Equivalent
L
1.0
μH
DCR (Series R)
85
mΩ
CBAT
10μF, 20%, 6.3V, X5R, 0603
Murata: GRM188R60J106M
TDK: C1608X5R0J106M
C
10
μF
CMID
4.7μF, 10%, 6.3V, X5R, 0603
Murata: GRM188R60J475K
TDK: C1608X5R0J475K
4.7
μF
CBUS
1.0μF, 10%, 25V, X5R, 0603
Murata GRM188R61E105K
TDK:C1608X5R1E105M
1.0
μF
(2)
C
C
Note:
2. 6.3V rating is sufficient for CMID since PMID is protected from over-voltage surges on VBUS by Q3 (Figure 3).
© 2008 Fairchild Semiconductor Corporation
FAN5400 Family • Rev. 1.0.2
www.fairchildsemi.com
2
FAN5400 Family — USB-Compliant Single-Cell Li-Ion Switching Charger with USB-OTG Boost Regulator
Ordering Information
FAN5400 Family — USB-Compliant Single-Cell Li-Ion Switching Charger with USB-OTG Boost Regulator
Block Diagram
Figure 2. IC and System Block Diagram
VBUS
CIN1
PMID
Q3
CHARGE
PUMP
CIN2
Q1
Q1A
Q1B
PMID
Greater than VBAT
Less than VBAT
Q1A
ON
OFF
Q1B
OFF
ON
CSIN
L1
SW
Q2
1μH
RSENSE
COUT
68mΩ
PGND
+ Battery
VBAT
SYSTEM
LOAD
CBAT
Figure 3. Power Stage
© 2008 Fairchild Semiconductor Corporation
FAN5400 Family • Rev. 1.0.2
www.fairchildsemi.com
3
BALL A1
INDEX AREA
F
A
E
1.20
B
0.03 C
Ø0.20
Cu Pad
A1
2X
1.60
D
0.40
Ø0.30 Solder
Mask Opening
0.40
0.03 C
2X
TOP VIEW
RECOMMENDED LAND PATTERN
(NSMD TYPE)
0.06 C
0.625
0.547
0.05 C
C
0.378±0.018
0.208±0.021
E
SEATING PLANE
SIDE VIEWS
D
NOTES:
0.005
1.20
A. NO JEDEC REGISTRATION APPLIES.
C A B
B. DIMENSIONS ARE IN MILLIMETERS.
Ø0.260±0.02
20X
0.40
E
D
C
B
1.60
0.40
C. DIMENSIONS AND TOLERANCE
PER ASMEY14.5M, 1994.
D. DATUM C IS DEFINED BY THE SPHERICAL
CROWNS OF THE BALLS.
(Y) ±0.018
A
E. PACKAGE NOMINAL HEIGHT IS 586 MICRONS
±39 MICRONS (547-625 MICRONS).
F
1 2 3 4
(X) ±0.018
F. FOR DIMENSIONS D, E, X, AND Y SEE
PRODUCT DATASHEET.
BOTTOM VIEW
G. DRAWING FILNAME: MKT-UC020AArev2.
Figure 51. 20-Ball WLCSP, 4X5 Array, 0.4mm Pitch, 250µm Ball
Product-Specific Dimensions
Product
D
E
X
Y
FAN540XUCX
1.960 +0.030
1.870 +0.030
0.180
0.335
Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without
notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most
recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty
therein, which covers Fairchild products.
Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:
http://www.fairchildsemi.com/packaging/.
© 2008 Fairchild Semiconductor Corporation
FAN5400 Family • Rev. 1.0.2
www.fairchildsemi.com
35
FAN5400 Family — USB-Compliant Single-Cell Li-Ion Switching Charger with USB-OTG Boost Regulator
Physical Dimensions
FAN5400 Family — USB-Compliant Single-Cell Li-Ion Switching Charger with USB-OTG Boost Regulator
36
www.fairchildsemi.com
© 2008 Fairchild Semiconductor Corporation
FAN5400 Family • Rev. 1.0.2
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