Line Card



【Basic Info】

【Product Feature】

‧Supports unregulated adapters
‧Protection against poor USB sources
‧USB compliance
‧Meets JEITA standard
‧Fast charging from adapter in case of transceiver dead or asleep
‧30V input rating with input OVP
‧Input voltage dynamic power management
‧Selectable 100mA or 500mA USB current limit
‧Adjustable pre-charge and termination current
‧TS pin to monitor pack temperature
‧USB D+ D- Detection (bq2405x)


‧Smart Phones
‧MP3 Players
‧Low-Power Handheld Devices


The bq2404x series of devices are highly integrated Li-ion linear chargers devices targeted at space-limited portable applications. The devices operate from either a USB port or AC adapter. The high input voltage range with input overvoltage protection supports low-cost unregulated adapters. The bq2404x has a single power output that charges the battery. A system load can be placed in parallel with the battery as long as the average system load does not keep the battery from charging fully during the 10-hour safety timer.