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PDF FAN54046 Datasheet ( Hoja de datos )

Número de pieza FAN54046
Descripción Li-Ion Switching Charger
Fabricantes Fairchild Semiconductor 
Logotipo Fairchild Semiconductor Logotipo

Total 30 Páginas
		
FAN54046 Hoja de datos, Descripción, Manual
July 2013
FAN54040 FAN54047
USB-OTG, 1.55 A, Li-Ion Switching Charger with Power
Path and 2.3 A Production Test Support
Features
Fully Integrated, High-Efficiency Charger for Single-Cell
Li-Ion and Li-Polymer Battery Packs
Power Path Circuit Ensures Fast System Startup with a
Dead Battery when VBUS is Connected
1.55 A Maximum Charge Current
Float Voltage Accuracy:
- 0.5% at 25°C
- 1% from 0 to 125°C
5% Input and Charge Current Regulation Accuracy
Temperature-Sense Input Prevents Auto-Charging for
JEITA Compliance
Thermal Regulation and Shutdown
4.2 V at 2.3 A Production Test Mode
5 V, 500 mA Boost Mode for USB OTG
28 V Absolute Maximum Input Voltage
6 V Maximum Input Operating Voltage
Programmable through High-Speed I2C Interface
(3.4 Mb/s) with Fast Mode Plus Compatibility
- Input Current
- Fast-Charge / Termination Current
- Float Voltage
- Termination Enable
3 MHz Synchronous Buck PWM Controller with
Wide Duty Cycle Range
Small Footprint 1 H External Inductor
Safety Timer with Reset Control
Dynamic Input Voltage Control
Very Low Battery Current when Charger Inactive
Applications
Cell Phones, Smart Phones, PDAs
Tablet, Portable Media Players
Gaming Device, Digital Cameras
All trademarks are the property of their respective owners.
© 2012 Fairchild Semiconductor Corporation
FAN54040 – FAN54047 • Rev. 1.0.2
Description
The FAN5404X family includes I2C controlled 1.55 A USB-
compliant switch-mode chargers with power path operation
and USB OTG boost operation. Integrated with the charger,
the IC supports production test mode, which provides 4.2 V
at up to 2.3 A to the system.
To facilitate fast system startup, the IC includes a power
path circuit, which disconnects the battery from the system
rail, ensuring that the system can power up quickly following
a VBUS connection. The power path circuit ensures that the
system rail stays up when the charger is plugged in, even if
the battery is dead or shorted.
The charging parameters and operating modes are
programmable through an I2C Interface that operates up to
3.4 Mbps. The charger and boost regulator circuits switch at
3 MHz to minimize the size of external passive components.
The FAN5404X provides battery charging in three phases:
conditioning, constant current, and constant voltage. The
integrated circuit automatically restarts the charge cycle
when the battery falls below a voltage threshold. If the input
source is removed, the IC enters a high-impedance mode
blocking battery current from leaking to the input. Charge
status is reported back to the host through the I2C port.
Dynamic input voltage control prevents a weak adapters
voltage from collapsing, ensuring charging capability from
such adapters.
The FAN5404X is available in a 25-bump, 0.4 mm pitch,
WLCSP package.
VBUS
CBUS
PGND
PMID
CMID
POK_B
ILIM
SDA
SCL
DIS
STAT
AGND
FAN5404X
SW
SYS
L1
CSYS
Q5
GATE
External
PMOS
VBAT
NTC
REF RREF
CREF
T
SYSTEM
LOAD
CBAT
BATTERY
+
Figure 1. Typical Application
www.fairchildsemi.com

1 page

FAN54046 pdf
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
VBUS Voltage on VBUS Pin
Continuous
Pulsed, 100 ms Maximum Non-Repetitive
Voltage on PMID Voltage Pin
VI
Voltage on SW, SYS, VBAT, STAT, DIS Pins
VO
dVBUS
dt
Voltage on Other Pins
Maximum VBUS Slope Above 5.5 V when Boost or Charger Active
ESD
Electrostatic Discharge
Protection Level(4)
IEC 61000-4-2 System ESD
Human Body Model per JESD22-A114
Charged Device Model per JESD22-C101
USB Connector
Air Gap
Pins (VBUS to GND) Contact
TJ Junction Temperature
TSTG Storage Temperature
TL Lead Soldering Temperature, 10 Seconds
Note:
3. Lesser of 6.5 V or VI + 0.3 V.
4. Guaranteed if CBUS ≥1µF and CMID ≥ 4.7µF.
Min.
-0.3
-1.0
0.3
0.3
0.3
Max.
28.0
7.0
7.0
6.5(3)
4
2000
500
15
8
40 +150
65 +150
+260
Unit
V
V
V
V/s
V
kV
°C
°C
°C
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
VBUS
VBAT(MAX)
dVBUS
dt
TA
TJ
Supply Voltage
Maximum Battery Voltage when Boost enabled
Negative VBUS Slew Rate during VBUS Short Circuit,
CMID < 4.7 F, see VBUS Short While Charging
TA < 60°C
TA > 60°C
Ambient Temperature
Junction Temperature (see Thermal Regulation and Protection section)
Min.
4
30
30
Max.
6
4.5
4
2
+85
+120
Unit
V
V
V/s
°C
°C
Thermal Properties
Junction-to-ambient thermal resistance is a function of application and board layout. This data is measured with four-layer
2s2p boards in accordance to JEDEC standard JESD51. Special attention must be paid not to exceed junction temperature
TJ(max) at a given ambient temperature TA. For measured data, see Table 18.
Symbol
Parameter
JA Junction-to-Ambient Thermal Resistance (see also Figure 18)
JB Junction-to-PCB Thermal Resistance
Typical
50
20
Unit
°C/W
°C/W
© 2012 Fairchild Semiconductor Corporation
FAN54040 FAN54047 Rev. 1.0.2
5
www.fairchildsemi.com

5 Page

FAN54046 arduino
Timing Diagrams
SDA
tF
SCL
tHD;STA
START
tR
tLOW
tSU;STA
tHIGH
TSU;DAT
tHD;DAT
tHD;STA
REPEATED
START
Figure 5. I2C Interface Timing for Fast and Slow Modes
tBUF
tHD;STO
STOP
START
tFDA
tRDA
tSU;DAT
SDAH
tSU;STA
SCLH
tHD;STA
tRCL1
tLOW
tFCL
tHIGH
tHD;DAT
REPEATED
START
note A
tRCL
REPEATED
START
STOP
tSU;STO
= MCS Current Source Pull-up
= RP Resistor Pull-up
Note A: First rising edge of SCLH after Repeated Start and after each ACK bit.
Figure 6. I2C Interface Timing for High-Speed Mode
© 2012 Fairchild Semiconductor Corporation
FAN54040 FAN54047 Rev. 1.0.2
11
www.fairchildsemi.com

11 Page


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