Description:

GD30BC1503 is a complete constant current/constantvoltage linear charger for single-cell lithium batteries. Itscompact package and low number of externalcomponents make GD30BC1503 very suitable forportable applications. It adopts P-MOSFET architectureand anti-backflow circuit internally, so no externaldetection resistor and isolation diode are required.Thermal feedback can regulate the charging current tolimit the power consumption of the chip under highpower operation or high temperature environmentconditions. The full charge voltage is fixed at 4.2V or4.35V , and the charging current can be programmed bythe ISET external resistor.When the final full charge voltage is reached and thecharge current drops to 1/10 of the set current, theGD30BC1503 will automatically terminate the chargecycle. When the input voltage source is removed, theGD30BC1503 automatically enters a low power stateand the port leakage current connected to the batterydrops below 1μA. Other features include charge currentmonitor, under-voltage lockout, automatic charging andstatus pins.

Feature:

• Input Withstand Voltage 36V

• Input Overvoltage Protection 6.8V

• Standby Current Less Than 1μA

• High-Precision Full Charge Detection VoltageThreshold

• Support 0V Battery Charging

• Up to 1A Programmable Charge Current

• Trickle/Constant Current/Constant VoltageThree-Stage Charging

• 2.8 V Trickle Switching Threshold

• Full Charge Voltage 4.2V and 4.35V Optional

• Automatic Recharging

• Battery Reverse Polarity Protection

• Adjustable Charging Current with IntelligentThermal Regulation

• LED Status Indication Output Pin

• Low-Level Enable to Start Charging

• ESOP-8 , DFN2x2-8 , DFN 3x3-8 Packages

• RoHS Compliant

Applications:

• Capacitive Sensors

• Toy

• Bluetooth Applications

• Lithium-ion Battery Powered Devices