BQ25100A Series

Standalone 1-cell, 250-mA linear battery charger with 4.284-V charge voltage and prog. pre-charge

Catalog

Standalone 1-cell, 250-mA linear battery charger with 4.284-V charge voltage and prog. pre-charge

Part	Package / Case	Number of Cells	Mounting Type	Fault Protection	Battery Pack Voltage	Supplier Device Package	Charge Current - Max [Max]	Operating Temperature [Min]	Operating Temperature [Max]	Current - Charging	Voltage - Supply (Max) [Max]	Programmable Features	Battery Chemistry	Interface	Type	Supplied Contents	Utilized IC / Part	Primary Attributes	Function
Texas Instruments BQ25100YFPR	6-XFBGA DSBGA	1	Surface Mount	Over Temperature Over Voltage Short Circuit	4.2 V	6-DSBGA	250 mA	0 °C	125 ¯C	Constant - Programmable	6.45 V	Current	Lithium Ion/Polymer
Texas Instruments BQ25100BYFPT	6-XFBGA DSBGA	1	Surface Mount	Over Temperature Over Voltage Short Circuit	4.284 V	6-DSBGA	250 mA	-5 °C	125 ¯C	Constant - Programmable	6.45 V	Current	Lithium Ion/Polymer	USB
Texas Instruments BQ25100HYFPR	6-XFBGA DSBGA	1	Surface Mount	Over Temperature Over Voltage Short Circuit	4.35 V	6-DSBGA	250 mA	0 °C	125 ¯C	Constant - Programmable	6.45 V	Current	Lithium Ion/Polymer
Texas Instruments BQ25100AYFPR	6-XFBGA DSBGA	1	Surface Mount	Over Temperature Over Voltage Short Circuit	4.3 V	6-DSBGA	250 mA	0 °C	125 ¯C	Constant - Programmable	6.45 V	Current	Lithium Ion/Polymer
Texas Instruments BQ25100AYFPT	6-XFBGA DSBGA	1	Surface Mount	Over Temperature Over Voltage Short Circuit	4.3 V	6-DSBGA	250 mA	0 °C	125 ¯C	Constant - Programmable	6.45 V	Current	Lithium Ion/Polymer
Texas Instruments BQ25100HYFPT	6-XFBGA DSBGA	1	Surface Mount	Over Temperature Over Voltage Short Circuit	4.35 V	6-DSBGA	250 mA	0 °C	125 ¯C	Constant - Programmable	6.45 V	Current	Lithium Ion/Polymer
Texas Instruments BQ25100EVM-654															Power Management	Board(s)	BQ25100	Li-Ion (1 Cell)	Battery Charger

Catalog

Standalone 1-cell, 250-mA linear battery charger with 4.284-V charge voltage and prog. pre-charge

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

The bq25100B device is a highly integrated Li-Ion and Li-Pol linear charger targeted at space-limited portable applications. The high input voltage range with input overvoltage protection supports low-cost unregulated adapters. The bq25100B 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 bq25100B. The fast charge current value is also programmable via an external resistor. References to other devices in the bq25100B family are included in this document. For more information on those devices, please see their respective datasheets. This includes references to theCHGpin and the JEITA temperature functionality. The bq25100B device is a highly integrated Li-Ion and Li-Pol linear charger targeted at space-limited portable applications. The high input voltage range with input overvoltage protection supports low-cost unregulated adapters. The bq25100B 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 bq25100B. The fast charge current value is also programmable via an external resistor. References to other devices in the bq25100B family are included in this document. For more information on those devices, please see their respective datasheets. This includes references to theCHGpin and the JEITA temperature functionality.