BQ25100A Series
Standalone 1-cell, 250-mA linear battery charger with 4.3-V charge voltage and prog. pre-charge
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
Standalone 1-cell, 250-mA linear battery charger with 4.3-V charge voltage and prog. pre-charge
| Part | Battery Pack Voltage | Number of Cells | Programmable Features | Charge Current - Max [Max] | Battery Chemistry | Voltage - Supply (Max) [Max] | Operating Temperature [Min] | Operating Temperature [Max] | Supplier Device Package | Mounting Type | Fault Protection | Current - Charging | Package / Case |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ25100AYFPT | 4.3 V | 1 | Current | 250 mA | Lithium Ion/Polymer | 6.45 V | 0 °C | 125 ¯C | 6-DSBGA | Surface Mount | Over Temperature, Over Voltage, Short Circuit | Constant - Programmable | 6-XFBGA, DSBGA |
Texas Instruments BQ25100AYFPR | 4.3 V | 1 | Current | 250 mA | Lithium Ion/Polymer | 6.45 V | 0 °C | 125 ¯C | 6-DSBGA | Surface Mount | Over Temperature, Over Voltage, Short Circuit | Constant - Programmable | 6-XFBGA, DSBGA |
Key Features
• Charging1% Charge Voltage Accuracy10% Charge Current AccuracySupports Applications for Very LowCharge Currents - 10 mA to 250 mASupports minimum 1-mA ChargeTermination CurrentUltra Low Battery Output LeakageCurrent - Maximum 75 nAAdjustable Termination and PrechargeThresholdHigh voltage Chemistry Support: 4.35 Vwith bq25100H/01H, 4.30 V with bq25100AProtection30-V Input Rating; with 6.5-V InputOvervoltage ProtectionInput Voltage Dynamic Power Management125°C Thermal Regulation; 150°CThermal Shutdown ProtectionOUT Short-Circuit Protection and ISETShort DetectionOperation over JEITA Range via BatteryNTC – 1/2 Fast-Charge-Current atCold, 4.06 V (bq25100/01) or 4.2 V(bq25100H/01H) at HotFixed 10 Hour Safety TimerSystemAutomatic Termination and TimerDisable Mode (TTDM) for Absent BatteryPackAvailable in Small 1.60 mm × 0.90 mmDSBGA PackageCharging1% Charge Voltage Accuracy10% Charge Current AccuracySupports Applications for Very LowCharge Currents - 10 mA to 250 mASupports minimum 1-mA ChargeTermination CurrentUltra Low Battery Output LeakageCurrent - Maximum 75 nAAdjustable Termination and PrechargeThresholdHigh voltage Chemistry Support: 4.35 Vwith bq25100H/01H, 4.30 V with bq25100AProtection30-V Input Rating; with 6.5-V InputOvervoltage ProtectionInput Voltage Dynamic Power Management125°C Thermal Regulation; 150°CThermal Shutdown ProtectionOUT Short-Circuit Protection and ISETShort DetectionOperation over JEITA Range via BatteryNTC – 1/2 Fast-Charge-Current atCold, 4.06 V (bq25100/01) or 4.2 V(bq25100H/01H) at HotFixed 10 Hour Safety TimerSystemAutomatic Termination and TimerDisable Mode (TTDM) for Absent BatteryPackAvailable in Small 1.60 mm × 0.90 mmDSBGA Package
Description
AI
The bq2510x series of devices are highly integrated Li-Ion and Li-Pol linear chargers targeted at space-limited portable applications. The high input voltage range with input overvoltage protection supports low-cost unregulated adapters.
The bq2510x has a single power output that charges the battery. A system load can be placed in parallel with the battery as long as the average system load does not keep the battery from charging fully during the 10 hour safety timer.
The battery is charged in three phases: conditioning, constant current and constant voltage. In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if an internal temperature threshold is exceeded.
The charger power stage and charge current sense functions are fully integrated. The charger function has high accuracy current and voltage regulation loops and charge termination. The pre-charge current and termination current threshold are programmed via an external resistor on the bq2510x. The fast charge current value is also programmable via an external resistor.
The bq2510x series of devices are highly integrated Li-Ion and Li-Pol linear chargers targeted at space-limited portable applications. The high input voltage range with input overvoltage protection supports low-cost unregulated adapters.
The bq2510x has a single power output that charges the battery. A system load can be placed in parallel with the battery as long as the average system load does not keep the battery from charging fully during the 10 hour safety timer.
The battery is charged in three phases: conditioning, constant current and constant voltage. In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if an internal temperature threshold is exceeded.
The charger power stage and charge current sense functions are fully integrated. The charger function has high accuracy current and voltage regulation loops and charge termination. The pre-charge current and termination current threshold are programmed via an external resistor on the bq2510x. The fast charge current value is also programmable via an external resistor.