BQ25872 Series
I2C 1cell 7A battery switch charger with ADC and external OVP controller
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
I2C 1cell 7A battery switch charger with ADC and external OVP controller
| Part | Fault Protection | Mounting Type | Voltage - Supply (Max) [Max] | Battery Chemistry | Current - Charging | Interface | Package / Case | Number of Cells | Supplier Device Package | Supplier Device Package [y] | Supplier Device Package [x] | Operating Temperature [Max] | Operating Temperature [Min] | Charge Current - Max [Max] | Type | Supplied Contents | Utilized IC / Part | Function |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ25872YFFT | Over Current, Over Temperature, Over Voltage, Reverse Current | Surface Mount | 6 V | Lithium Ion/Polymer | Constant | I2C | 42-UFBGA, DSBGA | 1 | 42-DSBGA | 2.5 | 2.8 | 85 °C | -40 °C | 7 A | ||||
Texas Instruments BQ25872YFFR | Over Current, Over Temperature, Over Voltage, Reverse Current | Surface Mount | 6 V | Lithium Ion/Polymer | Constant | I2C | 42-UFBGA, DSBGA | 1 | 42-DSBGA | 2.5 | 2.8 | 85 °C | -40 °C | 7 A | ||||
Texas Instruments BQ25872EVM-813 | Power Management | Board(s) | BQ25872 | Battery Charger |
Key Features
• Adapter Input Voltage Range: 3 V to 14 VAllow up to 14-V Adaptor VoltageHighly Integrated 7-A Battery SwitchIntegrated MOSFETs and Current SensingLow RDS(on)(13-mΩ) MOSFETs for High Current OperationIntegrated High Accuracy ADC for System MonitorVBUS, VBAT, VOUT, VDROP VoltageInput and Battery CurrentBattery and VBUS Connector TemperatureLinear Regulation (LDO) Mode OperationFour Linear Regulation Loops: IBUS, IBAT, VBAT and VOUTProgrammable Linear Regulation ThresholdsProgrammable Safety ProtectionsVBUS, VOUT, and VBAT Over Voltage Protections (OVP)IBUS and IBAT Over Current Protection (OCP)IBUS Reverse Current Protection (RCP)VDROP (VBUS-VOUT) OVPVBUS Connector and Battery Thermal ProtectionThermal ShutdownInterrupt Status Output For Host Processor AlertUp To 1-MHz I2C Read and Write SpeedLow Battery Leakage Current in Battery Only ModeWCSP Package for Small FootprintAdapter Input Voltage Range: 3 V to 14 VAllow up to 14-V Adaptor VoltageHighly Integrated 7-A Battery SwitchIntegrated MOSFETs and Current SensingLow RDS(on)(13-mΩ) MOSFETs for High Current OperationIntegrated High Accuracy ADC for System MonitorVBUS, VBAT, VOUT, VDROP VoltageInput and Battery CurrentBattery and VBUS Connector TemperatureLinear Regulation (LDO) Mode OperationFour Linear Regulation Loops: IBUS, IBAT, VBAT and VOUTProgrammable Linear Regulation ThresholdsProgrammable Safety ProtectionsVBUS, VOUT, and VBAT Over Voltage Protections (OVP)IBUS and IBAT Over Current Protection (OCP)IBUS Reverse Current Protection (RCP)VDROP (VBUS-VOUT) OVPVBUS Connector and Battery Thermal ProtectionThermal ShutdownInterrupt Status Output For Host Processor AlertUp To 1-MHz I2C Read and Write SpeedLow Battery Leakage Current in Battery Only ModeWCSP Package for Small Footprint
Description
AI
The device is a 7-A battery switch charger with an integrated 10-bit ADC. The high-current battery switch charger is a 13-mΩ MOSFET with reverse current blocking designed for high efficiency and minimal voltage drop. The high-charge current capability of the device makes it ideal for smartphones, tablets, and other portable devices with large battery capacity.
The integrated 10-bit ADC can measure input voltage and current, battery voltage and current, as well as battery temperature and input connector temperature. This allows the user application to continuously monitor the power input and battery charging parameters to ensure the safety of the battery charging. The flexible OVP and OCP thresholds for VBUS, VOUT, and battery can be modified via I2C registers as the battery goes through constant current (CC) and constant voltage (CV) mode.
The I2C serial interface of the device can operate at speeds up to 1 MHz and allows access to the ADC’s measurements of the different charging parameters and also allows for flexible software control of the device. TheINTpin provides instantaneous feedback to the host in case of a fault condition. I2C status registers allow the host to read the current status of all faults and events.
The device is a 7-A battery switch charger with an integrated 10-bit ADC. The high-current battery switch charger is a 13-mΩ MOSFET with reverse current blocking designed for high efficiency and minimal voltage drop. The high-charge current capability of the device makes it ideal for smartphones, tablets, and other portable devices with large battery capacity.
The integrated 10-bit ADC can measure input voltage and current, battery voltage and current, as well as battery temperature and input connector temperature. This allows the user application to continuously monitor the power input and battery charging parameters to ensure the safety of the battery charging. The flexible OVP and OCP thresholds for VBUS, VOUT, and battery can be modified via I2C registers as the battery goes through constant current (CC) and constant voltage (CV) mode.
The I2C serial interface of the device can operate at speeds up to 1 MHz and allows access to the ADC’s measurements of the different charging parameters and also allows for flexible software control of the device. TheINTpin provides instantaneous feedback to the host in case of a fault condition. I2C status registers allow the host to read the current status of all faults and events.