The ADP3806 High Frequency Switch Mode Li-Ion Battery Charger is a high accuracy, high efficiency, three battery voltage option lithium ion battery charger from Analog Devices. The charger features advanced synchronous rectifier technology and high frequency switching technology, and has overcurrent protection, overvoltage protection, undervoltage protection and other functions, suitable for portable computers, fast chargers and other applications.
The ADP3806 is a complete Li-Ion battery-charging integrated circuit designed to simplify the implementation of constant-current, constant-voltage (CCCV) chargers. It combines high output voltage accuracy with constant current control and is available in three options: adjustable, 12.525 V/16.7 V fixed, and 12.600 V/16.800 V fixed.
Key features include a bootstrapped synchronous driver for external NMOS transistors to reduce system cost, programmable charge current via the ISET pin, and a system current sense amplifier with rail-to-rail inputs. The device supports applications such as portable computers and fast chargers.
| Operating Ambient Temperature Range | 0°C to 100°C |
|---|---|
| Maximum Oscillator Frequency | 1000 kHz |
| Precision Reference Output Voltage | 2.5 V |
The device is intended for use in portable computers and fast chargers.
The device operates within an ambient temperature range of 0°C to 100°C.
The boost regulator outputs between 6.8 V and 7.2 V, while the analog regulator outputs between 5.8 V and 6.2 V.