SL1054 Datasheet | SiL

Description SL1054 is a single Lithium-Ion or Lithium-Polymer cell linear battery charger which is designed for pact and cost-sensitive handheld devices. It bines charge status indication, charge termination, battery temperature monitoring, and high accuracy current and voltage regulation in a SOP-8 package. SL1054 charges the battery in three modes, precharge, constant current, constant voltage. If the battery voltage is below the precharge threshold VO(MIN), the SL1054 precharges the battery with a lower conditioning current. After precharge, the SL1054 applies a constant current to the battery. An external sense-resister sets the charge current. The constant voltage mode continues until the battery reaches the regulation The battery temperature is continuously measured by an external thermistor through the TS pin. SL1054 inhibits charge until the temperature is within the range defined by users. Features For Single Lithium-Ion or Lithium-Polymer Cell Battery Pack 4.2V A Few External ponents 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 Package Ro HS pliant and 100% Lead (Pb)-Free Applications Digital Cameras PDAs Cellular Phones Information Appliance Pin Configurations .junyi-ic. Typical Application Circuit Figure1: Application circuit using P-channel MOSFET Figure2: Application circuit using PNP transistor .junyi-ic. Founctinal Pin Description Pin Name VDD TS STAT1 STAT2 GND CC BATT Pin Funtion Supply Voltage Input Temperature Sense Input. Input from battery temperature monitoring circuit. In charge status, this pin is pulled to high; when charge pleted, it’s pulled to low; and if temperature fault or disable, it’s in high impedance status. In charge status, this pin is pulled to low; when charge pleted, it’s pulled to high; and if temperature fault or...