GENERAL DESCRIPTION
The ADP3820 is a precision single cell Li-Ion battery charge controller that can be used with an external Power PMOS device to form a two-chip, low cost, low dropout linear battery charger. It is available in two voltage options to accommodate Li-Ion batteries with coke or graphite anodes. The ADP3820’s high accuracy (±1%) low shutdown current (1 µA) and easy charge current programming make this device especially attractive as a battery charge controller.
   
FEATURES
    ±1% Total Accuracy
    630 μA Typical Quiescent Current
    Shutdown Current: 1 μA (Typical)
    Stable with 10 μF Load Capacitor
    4.5 V to 15 V Input Operating Range
    Integrated Reverse Leakage Protection
    6-Lead SOT-23-6 and 8-Lead SO-8 Packages
    Programmable Charge Current
    –20°C to +85°C Ambient Temperature Range
    Internal Gate-to-Source Protective Clamp
   
APPLICATIONS
    Li-Ion Battery Chargers
    Desktop Computers
    Hand-Held Instruments
    Cellular Telephones
    Battery Operated Devices