BQ24315 Series
Overvoltage & Overcurrent Protection IC & Li+ Charger Front-End Protection IC
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
Overvoltage & Overcurrent Protection IC & Li+ Charger Front-End Protection IC
| Part | Mounting Type | Fault Protection | Supplier Device Package | Function | Package / Case | Operating Temperature [Max] | Operating Temperature [Min] | Battery Chemistry | Supplied Contents | Type | Contents | Utilized IC / Part |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ24315DSGR | Surface Mount | Over Current, Over Temperature, Over/Under Voltage | 8-WSON (2x2) | Battery Protection | 8-WFDFN Exposed Pad | 125 ¯C | -40 °C | Lithium Ion | ||||
Texas Instruments BQ24315DSGT | Surface Mount | Over Current, Over Temperature, Over/Under Voltage | 8-WSON (2x2) | Battery Protection | 8-WFDFN Exposed Pad | 125 ¯C | -40 °C | Lithium Ion | ||||
Texas Instruments BQ24315EVM | Battery Charger | Board(s) | Power Management | Board(s) | BQ24315 |
Key Features
• Provides Protection for Three Variables:Input Overvoltage, with Rapid Response in < 1 µsUser-Programmable Overcurrent with Current LimitingBattery Overvoltage30V Maximum Input VoltageSupports up to 1.5A Input CurrentRobust Against False Triggering Due to Current TransientsThermal ShutdownEnable InputStatus Indication — Fault Condition5.5V LDO Mode Voltage RegulationAvailable in Space-Saving Small 8 Lead 2mm ×2mm SONAPPLICATIONSMobile Phones and Smart PhonesPDAsMP3 PlayersLow-Power Handheld DevicesBluetooth HeadsetsPowerPAD Is a trademark of Texas InstrumentsProvides Protection for Three Variables:Input Overvoltage, with Rapid Response in < 1 µsUser-Programmable Overcurrent with Current LimitingBattery Overvoltage30V Maximum Input VoltageSupports up to 1.5A Input CurrentRobust Against False Triggering Due to Current TransientsThermal ShutdownEnable InputStatus Indication — Fault Condition5.5V LDO Mode Voltage RegulationAvailable in Space-Saving Small 8 Lead 2mm ×2mm SONAPPLICATIONSMobile Phones and Smart PhonesPDAsMP3 PlayersLow-Power Handheld DevicesBluetooth HeadsetsPowerPAD Is a trademark of Texas Instruments
Description
AI
The bq24313 and bq24315 are highly integrated circuits designed to provide protection to Li-ion batteries from failures of the charging circuit. The IC continuously monitors the input voltage, the input current, and the battery voltage. The output acts as a linear regulator. The output is regulated to VO(REG)for inputs between VO(REG)and the overvoltage threshold. If an input overvoltage condition occurs, the IC 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 at the threshold value, and if the overcurrent persists, switches the pass element OFF after a blanking period. Additionally, the IC also monitors its own die temperature and switches off if it exceeds 140°C. The input overcurrent threshold is user-programmable.
The IC can be controlled by a processor and also provides status information about fault conditions to the host.
The bq24313 and bq24315 are highly integrated circuits designed to provide protection to Li-ion batteries from failures of the charging circuit. The IC continuously monitors the input voltage, the input current, and the battery voltage. The output acts as a linear regulator. The output is regulated to VO(REG)for inputs between VO(REG)and the overvoltage threshold. If an input overvoltage condition occurs, the IC 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 at the threshold value, and if the overcurrent persists, switches the pass element OFF after a blanking period. Additionally, the IC also monitors its own die temperature and switches off if it exceeds 140°C. The input overcurrent threshold is user-programmable.
The IC can be controlled by a processor and also provides status information about fault conditions to the host.