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LX2205ILQ Datasheet

  • LX2205ILQ

  • 1A Li-Ion Battery Charger with Power Source Management

  • 321.15KB

  • 14頁(yè)

  • MICROSEMI

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LX2205
TM
廬
1A Li-Ion Battery Charger with Power Source Management
P
RODUCTION
D
ATA
S
HEET
DESCRIPTION
KEY FEATURES
Single Cell Li-Ion Battery Charger
Power Source Management
Up to 1A Charging Current
Integrated Power MOSFET
USB Current Compliance
25碌A(chǔ) Quiescent Current in
Discharge Mode
Taper Current Termination
Protection features:
USB Reverse Current Blocking
Unsafe Battery Temp Lockout
Internal IC Temperature Limiter
USB Current Limiter
The LX2205 is a complete single
cell Lithium Ion or Lithium Polymer
battery charger and power source
manager. In addition to battery
charging, power flow control is
provided from up to three sources: a
wall adapter, a standard USB power
plug or the battery.
The battery charge current and
termination current are independently
adjustable.
The controller also
includes status indicators which show
when the controller is powered by an
external adapter in addition to charge
in progress, and charge completed.
The USB input is current limited at
two logically selectable levels (100mA
and 500mA). When powered by a USB
input, the battery is charged with the
excess USB current that is not
consumed by the system load. If the
load exceeds the USB current limit, the
battery will discharge to assist the USB
power source to power the load. The
controller can logically suspend the
USB power to allow the system to
operate from the battery without
loading the USB.
When a wall adapter is applied, it
takes precedent over the USB power
input and disables the USB input to
prevent current flow from the adapter to
the USB port.
WWW .
Microsemi
.C
OM
o
o
o
o
APPLICATIONS
IMPORTANT:
For the most current data, consult
MICROSEMI鈥檚
website:
http://www.microsemi.com
Patents Pending.
Navigation Devices
Portable USB Devices
Multi-Media Player
PDA Phones
Digital Cameras
PRODUCT HIGHLIGHT
DC OK
Wall Adapter
USB Power
Suspend
High/Low
Shutdown
Adapter Present
MDC
USB
SUSP
UCL
SHDN
GND
CCP
CTP
CMP
SYS
System Load
LX2205
BAT
CHG
DONE
CUS TFB
Thermistor
Charge/
Discharge
Li-Ion
LX2205
LX2205
PACKAGE ORDER INFO
T
A
(擄C)
-40 to 85
LQ
Plastic MLP 4 x 4mm 16 pin
RoHS Compliant / Pb-free
LX2205ILQ
Note: Available in Tape & Reel. Append the letters 鈥淭R鈥?to the part number. (i.e. LX2205ILQ-TR)
Copyright
漏
2007
Rev. 1.0a, 2007-03-02
Microsemi
Analog Mixed Signal Group
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 1

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