BQ24308 Series
Overvoltage and Overcurrent Protection IC
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
Overvoltage and Overcurrent Protection IC
| Part | Operating Temperature [Max] | Operating Temperature [Min] | Package / Case | Fault Protection | Battery Chemistry | Function | Mounting Type | Supplier Device Package |
|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ24308DSGT | 125 ¯C | -40 °C | 8-WFDFN Exposed Pad | Over Current, Over Temperature, Over/Under Voltage | Lithium Ion | Battery Protection | Surface Mount | 8-WSON (2x2) |
Texas Instruments BQ24308DSGR | 125 ¯C | -40 °C | 8-WFDFN Exposed Pad | Over Current, Over Temperature, Over/Under Voltage | Lithium Ion | Battery Protection | Surface Mount | 8-WSON (2x2) |
Key Features
• Provides Protection for Three Variables:Input OvervoltageInput Overcurrent with Current LimitingBattery OvervoltageMaximum Input Voltage of 30 VSupports Up to 1.5-A Input CurrentRobust Against False Triggering Due to CurrentTransientsThermal ShutdownLDO Mode Voltage Regulation of 5 VAvailable in Space-Saving Small 2 mm × 2 mm 8-Pin WSON PackageAPPLICATIONSMobile and Smart PhonesPDAsMP3 PlayersLow-Power Handheld DevicesBluetooth™ HeadsetsAll other trademarks are the property of their respective ownersProvides Protection for Three Variables:Input OvervoltageInput Overcurrent with Current LimitingBattery OvervoltageMaximum Input Voltage of 30 VSupports Up to 1.5-A Input CurrentRobust Against False Triggering Due to CurrentTransientsThermal ShutdownLDO Mode Voltage Regulation of 5 VAvailable in Space-Saving Small 2 mm × 2 mm 8-Pin WSON PackageAPPLICATIONSMobile and Smart PhonesPDAsMP3 PlayersLow-Power Handheld DevicesBluetooth™ HeadsetsAll other trademarks are the property of their respective owners
Description
AI
The bq24308 device is a highly integrated circuit (IC) designed to provide protection to Li-ion batteries from failures of the charging circuit. The device continuously monitors the input voltage, the input current, and the battery voltage. In case of an input overvoltage condition, the device immediately removes power from the charging circuit by turning off an internal switch. In the case of an overcurrent condition, it limits the system current to a safe value for a blanking duration before turning the switch off. Battery voltage may also be monitored and if the battery voltage exceeds the specified value the internal switch is turned off. Additionally, the device also monitors its own die temperature and switches off if it becomes too hot.
The input overcurrent threshold can be increased using an external resistor. The device also offers optional protection against reverse voltage at the input using an external P-channel FET.
The bq24308 device is a highly integrated circuit (IC) designed to provide protection to Li-ion batteries from failures of the charging circuit. The device continuously monitors the input voltage, the input current, and the battery voltage. In case of an input overvoltage condition, the device immediately removes power from the charging circuit by turning off an internal switch. In the case of an overcurrent condition, it limits the system current to a safe value for a blanking duration before turning the switch off. Battery voltage may also be monitored and if the battery voltage exceeds the specified value the internal switch is turned off. Additionally, the device also monitors its own die temperature and switches off if it becomes too hot.
The input overcurrent threshold can be increased using an external resistor. The device also offers optional protection against reverse voltage at the input using an external P-channel FET.