TI BQ24075RGTT

The BQ2407x series of devices are integrated lithium-ion linear chargers and system power path management devices, suitable for space-constrained portable applications. These devices operate via a USB port or an AC adapter and support a maximum charging current of 1.5A. They have input voltage protection within the input voltage range, thus supporting unregulated adapters. The USB input current limit accuracy and startup sequence of the BQ2407x enable this device to comply with the USB-IF inrush current specification. In addition, input dynamic power management (VIN-DPM) can prevent the charger from damaging a misconfigured USB power supply.

• Fully compliant with USB charger standards; selectable maximum input current of 100mA and 500mA; 100mA maximum current limit ensures charging compliance with USB-IF standards
• Input-based Dynamic Power Management (VIN-DPM) for protection against poor USB power sources
• Functional Safety version available (BQ24074)
• 28V input rating with overvoltage protection
• Integrated Dynamic Power Path Management (DPPM) for simultaneous independent system power supply and battery charging
• Supports up to 1.5A charging current via current monitor output (ISET)
• Programmable input current limit up to 1.5A for wall adapters
• System output tracks battery voltage (BQ24072)
• Programmable termination current (BQ24074)
• Battery disconnect via SYSOFF input (BQ24075, BQ24079)
• Programmable pre-charge and fast-charge safety timers
• Reverse current, short circuit, and thermal protection
• NTC thermistor input
• Proprietary startup sequence to limit inrush current
• Status indication for charging/charge complete and power good
• Safety certification: IEC 62368-1 certified (BQ24072)

• TWS charging cases and earbuds
• Gaming accessories
• Video doorbells, IP network cameras
• Asset tracking and fleet management
• Portable medical devices