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XC5102 Datasheet Preview

XC5102 Datasheet

1A Linear Li-Ion Battery Charger

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XC5102
_______________________________________________________
XC5102- 1A Linear Li-Ion Battery Charger
GENERAL DESCRIPTION
The XC5102 is a complete constant current &
constant voltage linear charger for single cell
lithium-ion batteries. Its SOP package and low
external component count make the XC5102
ideally suited for portable applications.
Furthermore, the XC5102 is specifically designed
to work within USB power specifications.
No external sense resistor is needed, and no
blocking diode is required due to the internal
MOSFET architecture. Thermal feedback
regulates the charge current to limit the die
temperature during high power operation or high
ambient temperature. The charge voltage is fixed
at 4.35V, and the charge current can be
programmed externally with a single resistor. The
XC5102 automatically terminates the charge cycle
when the charge current drops to 1/10th the
programmed value after the final float voltage is
reached.
When the input supply (wall adapter or USB
supply) is removed, the XC5102 automatically
enters a low current state, dropping the battery
drain current to less than 2uA. The XC5102 can
be put into shutdown mode, reducing the supply
current to 50uA.
Other features include Battery temperature
monitor, under-voltage lockout, automatic
recharge and two status pins to indicate charge
and charge termination.
FEATURES
Programmable Charge Current Up to 1000mA
No MOSFET, Sense Resistor or Blocking Diode
Required
Complete Linear Charger in SOP Package for
single Cell Lithium-Ion Batteries
Constant-Current/Constant-Voltage Operation
with Thermal Regulation to Maximize Charge
Rate Without Risk of Overheating
Charges Single Cell Li-Ion Batteries Directly from
USB Port
Preset 4.35V Charge Voltage with ±1% Accuracy
Charge Current Monitor Output for Gas Gauging
Automatic Recharge
Charge state pairs of output, no battery and fault
status display
C/10 Charge Termination
50uA Supply Current in Shutdown
2.9V Trickle Charge Threshold
Soft-Start Limits Inrush Current
Battery temperature monitoring function
ESD HBM 8KV
Available in SOP8-PP Package
APPLICATIONS
Cellular Telephones, PDAs, MP3 /MP4 Players
Charging Docks and Cradles
Bluetooth GPS Applications
XySemi Inc
Figure1 . Typical Application Circuit
-1-
www.xysemi.com
REV0.1




XySemi

XC5102 Datasheet Preview

XC5102 Datasheet

1A Linear Li-Ion Battery Charger

No Preview Available !

XC5102
______________________________________________________________________________________________________________________
ORDERING INFORMATION
PART
NUMBER
XC5102
TEMP RANGE
-40°C to 85°C
VIN
4.5~6V
VBAT
4.35V
CHARGE
CURRENT
1A
PACKAGE
SOP-PP
PINS
8
PIN CONFIGURATION
PIN DESCRIPTION
Figure 2. PIN Configuration
PIN
NUMBER
1,
2
3
4
5
6
7
8
9
PIN
NAME
PIN DESCRIPTION
TEMP Battery temperature detection input, do not let this pin float.
PROG Charge Current Program, Charge Current Monitor and Shutdown Pin.
GND Ground
VCC Positive Input Supply Voltage.
BAT Charge Current Output.
/STBY The completion of battery charging instructions side.
/CHRG Open-Drain Charge Status Output.
CE Chip enable input.
EPAD Ground and EPAD
ABSOLUTE MAXIMUM RATINGS
(Note: Do not exceed these limits to prevent damage to the device. Exposure to absolute maximum rating
conditions for long periods may affect device reliability.)
PARAMETER
Input Supply Voltage VCC
VALUE
VSS-0.3VSS+7
UNIT
V
PROG pin Voltage Vprog
VSS-0.3Vcc+0.3
V
XySemi Inc
- 2 - www.xysemi.com
REV0.1


Part Number XC5102
Description 1A Linear Li-Ion Battery Charger
Maker XySemi
Total Page 8 Pages
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