LX2207_0710 Datasheet, PDF (1/14 Pages) Microsemi Corporation – Three Level Lithium Ion Battery Charger

LX2207
Three Level Lithium Ion Battery Charger
®
TM
PRODUCTION DATA SHEET
DESCRIPTION
The LX2207 can use a wall adapter charge in progress, battery fully charged
or USB power source to charge a and external power on. The STAT pin is
single cell Lithium Ion or Lithium capable of sourcing or sinking 10mA.
Polymer battery. There are three logic The DCOK output is an open drain
selectable and programmable charge output and can sink 20mA.
current levels: the high charge The LX2207 enters a low quiescent
programming level is typically set for current sleep mode when power is
charging from the adapter, the low removed or when it is logically
level charge programming level is shutdown to minimize battery drain.
typically set to 500mA for USB full There are several protection features
USB charging and 100mA (20%) for which include: under voltage lock out,
reduced level USB charging.
reverse current blocking on the IN pin,
In addition to setting the high-level a thermal loop to reduce charge current
charge current, the HCP programming to maintain a low die temperature, an
resistor also sets the termination unsafe battery temperature charge
current at 10% of the constant current inhibitor, and conditioning mode is
level and the conditioning current at provided for deeply discharged
5% of the constant current level. batteries.
Power status indicators (STAT and
DCOK) can be configured to show
KEY FEATURES
ƒ Three charge levels for
adapter, and USB Hi and Low
ƒ 0.5% Float voltage tolerance
ƒ Charging up to 1A.
ƒ Charging from USB port.
ƒ USB current compliance
ƒ Full battery Indicator
ƒ CC/CV w thermal Feedback
ƒ Battery temp monitor
ƒ Precision charge termination
ƒ Power Good Indication
APPLICATIONS
ƒ MP3 player
ƒ PDA
ƒ PMC
ƒ Digital Camera
ƒ Charge Cradle
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
PRODUCT HIGHLIGHT
T_A (°C)
-40 to 85
PACKAGE ORDER INFO
Plastic MLPD
LD _12-Pin
RoHS Compliant / Pb-free
LX2207ILD
Note: Available in Tape & Reel. Append the letters “TR” to the part number. (i.e. LX2207ILD-TR)
Copyright © 2007
Rev. 1.0a, 2007-10-08
Microsemi
Analog Mixed Signal Group
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
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