BQ25898C Series
I2C 1cell 3A buck battery charger for Parallel Charging Applications
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
I2C 1cell 3A buck battery charger for Parallel Charging Applications
| Part | Fault Protection | Package / Case | Interface | Supplier Device Package | Supplier Device Package [y] | Supplier Device Package [x] | Number of Cells | Charge Current - Max [Max] | Operating Temperature [Max] | Operating Temperature [Min] | Battery Chemistry | Voltage - Supply (Max) [Max] | Mounting Type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ25898CYFFR | Over Temperature, Over Voltage | 42-UFBGA, DSBGA | I2C, USB | 42-DSBGA | 2.5 | 2.8 | 1 | 3 A | 85 °C | -40 °C | Lithium Ion/Polymer | 14 V | Surface Mount |
Texas Instruments BQ25898CYFFT | Over Temperature, Over Voltage | 42-UFBGA, DSBGA | I2C, USB | 42-DSBGA | 2.5 | 2.8 | 1 | 3 A | 85 °C | -40 °C | Lithium Ion/Polymer | 14 V | Surface Mount |
Key Features
• Operation as Slave Charger to Provide Fast Charging in Dual Charger OperationSimple Configuration with Minimum BOMHigh Efficiency 3-A, 1.5-MHz Switch Mode Buck Charge92% Charge Efficiency at 3 A and 94% Charge Efficiency at 2 A Charge CurrentOptimize for High Voltage Input (9 V / 12 V)Low Power PFM mode for Light Load OperationsSingle Input to Support USB Input and Adjustable High Voltage AdaptersSupport 3.9-V to 14-V Input Voltage RangeInput Current Limit (100 mA to 3.25 A with 50-mA resolution) to Support USB2.0, USB3.0 standard and High Voltage AdaptersWide Input Dynamic Power Management (DPM) RangeHighest Battery Discharge Efficiency with 5-mΩ Battery MOSFETDefault Charge DisabledIntegrated ADC for System Monitor(Input, System and Battery Voltage, Temperature, Charge Current)Flexible Autonomous and I2C Mode for Optimal System PerformanceRemote Battery SensingHigh Integration includes all MOSFETs, Current Sensing and Loop CompensationHigh Accuracy±0.5% Charge Voltage Regulation±5% Charge Current Regulation±7.5% Input Current RegulationSafetyThermal Regulation and Thermal ShutdownInput UVLO/Overvoltage ProtectionBattery OVPSafety TimerOperation as Slave Charger to Provide Fast Charging in Dual Charger OperationSimple Configuration with Minimum BOMHigh Efficiency 3-A, 1.5-MHz Switch Mode Buck Charge92% Charge Efficiency at 3 A and 94% Charge Efficiency at 2 A Charge CurrentOptimize for High Voltage Input (9 V / 12 V)Low Power PFM mode for Light Load OperationsSingle Input to Support USB Input and Adjustable High Voltage AdaptersSupport 3.9-V to 14-V Input Voltage RangeInput Current Limit (100 mA to 3.25 A with 50-mA resolution) to Support USB2.0, USB3.0 standard and High Voltage AdaptersWide Input Dynamic Power Management (DPM) RangeHighest Battery Discharge Efficiency with 5-mΩ Battery MOSFETDefault Charge DisabledIntegrated ADC for System Monitor(Input, System and Battery Voltage, Temperature, Charge Current)Flexible Autonomous and I2C Mode for Optimal System PerformanceRemote Battery SensingHigh Integration includes all MOSFETs, Current Sensing and Loop CompensationHigh Accuracy±0.5% Charge Voltage Regulation±5% Charge Current Regulation±7.5% Input Current RegulationSafetyThermal Regulation and Thermal ShutdownInput UVLO/Overvoltage ProtectionBattery OVPSafety Timer
Description
AI
The bq25898C is a highly-integrated switch-mode battery charge management and system power path management device for single cell Li-Ion and Li-polymer battery. The device supports high input voltage for charging. The low impedance power path optimizes switch-mode operation efficiency, reduces battery charging time and extends battery life during discharging phase. The I2C serial interface with charging and system settings makes the device a truly flexible solution. The bq25898C is available in a 2.8mm x 2.5mm 42-ball DSBGA package.
The bq25898C is a highly-integrated 3-A switch-mode battery charge management device for single cell Li-Ion and Li-polymer battery. As a tiny and cost-effective device, it can also be configured as slave charger to provide fast charging in dual charger applications.
It features fast charging with high input voltage support for a wide range of smartphone, tablet and portable devices. Its low impedance power path optimizes switch-mode operation efficiency, reduces battery charging time and extends battery life during discharging phase. The solution is highly integrated with input reverse-blocking FET (RBFET,Q1), high-side switching FET (HSFET, Q2), low-side switching FET (LSFET, Q3), and integrated charge current sensing. It also integrates the bootstrap diode for the high-side gate drive and battery monitor for simplified system design. The I2C serial interface with charging and system settings makes the device a truly flexible solution.
The device supports a wide range of input sources, including standard USB host port, USB charging port, and USB compliant adjustable high voltage adapter. To set the default input current limit, the device takes the result from detection circuit in the system, such as USB PHY device. The device is compliant with USB 2.0 and USB 3.0 power spec with input current and voltage regulation.
The default charge current is set to 0 mA (both fast charge and precharge disabled). Once charge is enabled, the device may initiate and complete a charging cycle with software control.
The charger provides various safety features for battery charging and system operations, charging safety timer and overvoltage/overcurrent protections. The thermal regulation reduces charge current when the junction temperature exceeds 120°C (programmable). The STAT output reports the charging status and any fault conditions. ThePGoutput indicates if a good power source is present. The INT immediately notifies host when fault occurs.
The device is available in a 2.80 mm x 2.50 mm 42-ball DSBGA package.
The bq25898C is a highly-integrated switch-mode battery charge management and system power path management device for single cell Li-Ion and Li-polymer battery. The device supports high input voltage for charging. The low impedance power path optimizes switch-mode operation efficiency, reduces battery charging time and extends battery life during discharging phase. The I2C serial interface with charging and system settings makes the device a truly flexible solution. The bq25898C is available in a 2.8mm x 2.5mm 42-ball DSBGA package.
The bq25898C is a highly-integrated 3-A switch-mode battery charge management device for single cell Li-Ion and Li-polymer battery. As a tiny and cost-effective device, it can also be configured as slave charger to provide fast charging in dual charger applications.
It features fast charging with high input voltage support for a wide range of smartphone, tablet and portable devices. Its low impedance power path optimizes switch-mode operation efficiency, reduces battery charging time and extends battery life during discharging phase. The solution is highly integrated with input reverse-blocking FET (RBFET,Q1), high-side switching FET (HSFET, Q2), low-side switching FET (LSFET, Q3), and integrated charge current sensing. It also integrates the bootstrap diode for the high-side gate drive and battery monitor for simplified system design. The I2C serial interface with charging and system settings makes the device a truly flexible solution.
The device supports a wide range of input sources, including standard USB host port, USB charging port, and USB compliant adjustable high voltage adapter. To set the default input current limit, the device takes the result from detection circuit in the system, such as USB PHY device. The device is compliant with USB 2.0 and USB 3.0 power spec with input current and voltage regulation.
The default charge current is set to 0 mA (both fast charge and precharge disabled). Once charge is enabled, the device may initiate and complete a charging cycle with software control.
The charger provides various safety features for battery charging and system operations, charging safety timer and overvoltage/overcurrent protections. The thermal regulation reduces charge current when the junction temperature exceeds 120°C (programmable). The STAT output reports the charging status and any fault conditions. ThePGoutput indicates if a good power source is present. The INT immediately notifies host when fault occurs.
The device is available in a 2.80 mm x 2.50 mm 42-ball DSBGA package.