BQ24382 Series
Overvoltage/Overcurrent Protection IC and Li+ Charger Front-End Protection IC with LDO Mode,10.5 OVP
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
Overvoltage/Overcurrent Protection IC and Li+ Charger Front-End Protection IC with LDO Mode,10.5 OVP
| Part | Operating Temperature [Max] | Operating Temperature [Min] | Fault Protection | Supplier Device Package | Package / Case | Mounting Type | Function | Battery Chemistry |
|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ24382DSGT | 125 ¯C | -40 °C | Over Current, Over Temperature, Over/Under Voltage, Short Circuit | 8-WSON (2x2) | 8-WFDFN Exposed Pad | Surface Mount | Battery Protection | Lithium Ion |
Texas Instruments BQ24382DSGR | 125 ¯C | -40 °C | Over Current, Over Temperature, Over/Under Voltage, Short Circuit | 8-WSON (2x2) | 8-WFDFN Exposed Pad | Surface Mount | Battery Protection | Lithium Ion |
Key Features
• Input Overvoltage ProtectionAccurate Battery Overvoltage ProtectionOutput Short-Circuit ProtectionSoft-Start to Prevent Inrush CurrentsSoft-Stop to Prevent Voltage SpikesMaximum Input Voltage of 30 VSupports up to 1.7-A Load CurrentThermal ShutdownEnable FunctionFault Status IndicationSmall 2 mm × 2 mm 8-Pin WSON PackageInput Overvoltage ProtectionAccurate Battery Overvoltage ProtectionOutput Short-Circuit ProtectionSoft-Start to Prevent Inrush CurrentsSoft-Stop to Prevent Voltage SpikesMaximum Input Voltage of 30 VSupports up to 1.7-A Load CurrentThermal ShutdownEnable FunctionFault Status IndicationSmall 2 mm × 2 mm 8-Pin WSON Package
Description
AI
The bq2438x family of devices are charger front-end integrated circuits (ICs) designed to provide protection to Li-ion batteries from failures of the charging circuit. The device continuously monitors the input voltage and battery voltage. The device operates like a linear regulator, maintaining a 5.5-V (bq24380) or 5-V (bq24381, bq24382) output with input voltages up to the Input overvoltage threshold. During input overvoltage conditions, the device immediately turns off the internal pass FET disconnecting the charging circuit from the damaging input source. Additionally, if the battery voltage rises to unsafe levels while charging, power is removed from the system. The device checks for short-circuit or overload conditions at its output when turning the pass FET on, and if it finds unsafe conditions, it switches off and then rechecks the conditions. Additionally, the device also monitors its die temperature and switches off if it exceeds 140°C.
When the device is controlled by a processor, the device provides status information about fault conditions to the host.
The bq2438x family of devices are charger front-end integrated circuits (ICs) designed to provide protection to Li-ion batteries from failures of the charging circuit. The device continuously monitors the input voltage and battery voltage. The device operates like a linear regulator, maintaining a 5.5-V (bq24380) or 5-V (bq24381, bq24382) output with input voltages up to the Input overvoltage threshold. During input overvoltage conditions, the device immediately turns off the internal pass FET disconnecting the charging circuit from the damaging input source. Additionally, if the battery voltage rises to unsafe levels while charging, power is removed from the system. The device checks for short-circuit or overload conditions at its output when turning the pass FET on, and if it finds unsafe conditions, it switches off and then rechecks the conditions. Additionally, the device also monitors its die temperature and switches off if it exceeds 140°C.
When the device is controlled by a processor, the device provides status information about fault conditions to the host.