SL1051 Data Sheet

The SL1051 is a single Lithium-Ion or Lithium-Polymer
cell linear battery charger which is designed for compact
and cost-sensitive handheld devices. It combines charge
status indication, charge termination, battery temperature
monitoring, and high accuracy current and voltage
regulation in a MSOP-8/SOP8 package.
The SL1051 charges the battery in three modes,
precharge, constant current, constant voltage. If the
battery voltage is below the precharge threshold VO(MIN),
the SL1051 precharges the battery with a lower
conditioning current. After precharge, the SL1051 applies
a constant current to the battery. An external senseresister
sets the charge current. The constant voltage
mode continues until the battery reaches the regulation
voltage.
The battery temperature is continuously measured by an
external thermistor through the TS pin. The SL1051
inhibits charge until the temperature is within the range
defined by users.
Pin Configurations
 For Single Lithium-Ion or Lithium-Polymer Cell
Battery Pack (4.1V or 4.2V)
 A Few External Components are Required
 Precharge, Constant Current, Constant Voltage
Modes
 Battery Temperature Monitor
 Charge Status Indication
 Automatic Battery Recharge
 Charge Termination Detect
 Auto Low Power Sleep Mode when VDD Power is
Removed
 MSOP-8/SOP8 Package
 RoHS Compliant and 100% Lead (Pb)-Free

Applications

 Digital Cameras
 PDAs
 Cellular Phones
 Information Appliance

SL1051 Data Sheet Download SL1051.PDF