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JW3903 - 2.5A Boost Charger

Description

The JW®3903 is a highly integrated synchronous switch-mode boost charger for 2- or 3-cell series Li-ion and Li-polymer battery.

The JW3903 provides complete battery charging management includes pre-charge, constant-current fast charge, constant-voltage charge, charge termination and auto recharge.

Features

  • input voltage based dynamic power management (VIN DPM) to limit the input power and avoid adapter or USB port overloading. An internal thermal feedback loop regulates the charge current to limit the die temperature during high power operation or high ambient temperature. The JW3903 guarantees robustness with input under-voltage and over-voltage protection, battery over voltage protection, thermal shutdown, battery temperature monitoring, and a programmable timer to prevent prolonged charging of.

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Datasheet preview – JW3903

Datasheet Details

Part number JW3903
Manufacturer JoulWatt
File Size 878.49 KB
Description 2.5A Boost Charger
Datasheet download datasheet JW3903 Datasheet
Additional preview pages of the JW3903 datasheet.

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Full PDF Text Transcription

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JW3903 2.5A Boost Charger For 2 or 3 Cells In Series Battery Pack Preliminary Specifications Subject to Change without Notice DESCRIPTION The JW®3903 is a highly integrated synchronous switch-mode boost charger for 2- or 3-cell series Li-ion and Li-polymer battery. The JW3903 provides complete battery charging management includes pre-charge, constant-current fast charge, constant-voltage charge, charge termination and auto recharge. The device is able to charge the battery from a 5V adapter or USB input. The JW3903 supports up to 2.5A charge current, and the user can configure the current through external resistor for different applications. The charge voltage can also be configured to 8.4V, 8.7V, 12.6V or 13.05V via external resistor.
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