ADP3820ART-4.1-RL Datasheet

Lithium-Ion Battery Charger


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
    Desktop Computers
    Hand-Held Instruments
    Cellular Telephones
    Battery Operated Devices



Manufacturer information


Analog Devices, Inc. Introduction - Analog Devices, Inc. (NASDAQ: ADI) defines innovation and excellence in signal processing. ADI's analog, mixed-signal, and digital signal processing (DSP) integrated circuits (IC) play a fundamental role in converting, conditioning, and processing real-world phenomena such as light, sound, temperature, motion, and pressure into electrical signals to be used in a wide array of electronic equipment. ADI is synonymous with high performance among electronics manufacturers and we collaborate with our customers to define the very best in the quality of the user experience. That means the clearest image, crispest sound, and optimum interface, size and performance in thousands of entertainment, medical, communications, industrial and other applications.

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