BQ2005SG4

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BQ2005SG4 battery chargers are used for portable electronic devices such as mobile phones and digital cameras. The BQ2005SG4 is a programmable controlled battery charger, which is capable of charging single cell Li-Ion batteries. The device features current measurements, temperature monitoring, and selectable charging current options.

The BQ2005SG4 charger features a current-voltage converter, automatic Charge-Cycle Timer, and low voltage reset circuit. The device has an input voltage range of 4.5V – 6.5V, which enables the device to charge single-cell Li-Ion batteries. It also features an internal current limit of 200mA for both charging and discharging. The charger is programmable with an I²C interface and offers multiple selectable current output options.

The BQ2005SG4 offers an auto-charge cycle timer, which allows the charger to shut off when the battery is fully charged. It also features a current loop, which monitors the output current and adjusts it accordingly to maintain the desired charge current levels. The device also offers a integrated temperature monitoring and protection circuitry that can shut off the charger when the battery temperature is above or below a certain optimal voltage. The device is capable of detecting both low and overvoltage conditions and will shut off the charger when either of these conditions is detected.

The BQ2005SG4 can be used in a variety of applications such as cell phones, digital cameras, laptops, and other portable electronic devices. It is capable of providing an output current up to 200mA, which is suitable for charging various types of lithium-ion batteries. The device is programmable with an I²C interface, enabling users to customize their charging profiles and settings as desired. The device also offers temperature monitoring and over/undervoltage protection, ensuring safe and reliable operation.

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