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.
±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
Li-Ion Battery Chargers
Battery Operated Devices
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