BQ24616 Series

Standalone 1-6 cell Buck battery charge controller with JEITA compliance

Catalog

Standalone 1-6 cell Buck battery charge controller with JEITA compliance

Part	Number of Cells [Min]	Number of Cells [Max]	Fault Protection	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply (Max) [Max]	Current - Charging	Package / Case	Programmable Features	Mounting Type	Battery Pack Voltage [Max]	Battery Chemistry	Supplier Device Package	Charge Current - Max [Max]
Texas Instruments BQ24616RGET	1	6	Over Current Over Temperature Over Voltage Short Circuit	85 °C	-40 °C	28 V	Constant - Programmable	24-VFQFN Exposed Pad	Current	Surface Mount	26 V	Lithium Ion/Polymer	24-VQFN (4x4)	10 A
Texas Instruments BQ24616RGER	1	6	Over Current Over Temperature Over Voltage Short Circuit	85 °C	-40 °C	28 V	Constant - Programmable	24-VFQFN Exposed Pad	Current	Surface Mount	26 V	Lithium Ion/Polymer	24-VQFN (4x4)	10 A

Catalog

Standalone 1-6 cell Buck battery charge controller with JEITA compliance

Key Features

• Battery Thermistor Sense for JEITA GuidelineCompatible Charger600-kHz NMOS-NMOS Synchronous BuckConverterStand-Alone Charger Support for Li-Ion or Li-Polymer5-V–28-V VCC Input Operating Range andSupports 1 to 6 Battery CellsUp to 10-A Charge Current and Adapter CurrentHigh-Accuracy Voltage and Current Regulation±0.5% Charge Voltage Accuracy±3% Charge Current Accuracy±3% Adapter Current AccuracyIntegrationAutomatic System Power Selection FromAdapter or BatteryInternal Loop CompensationInternal Soft-StartDynamic Power ManagementSafety ProtectionInput Overvoltage ProtectionBattery DetectionReverse Protection Input FETProgrammable Safety TimerCharge Overcurrent ProtectionBattery Short ProtectionBattery Overvoltage ProtectionThermal ShutdownStatus OutputsAdapter PresentCharger Operation StatusCharge Enable Pin6-V Gate Drive for Synchronous Buck Converter30-ns Driver Dead-Time and 99.5% MaximumEffective Duty Cycle24-Pin, 4-mm × 4-mm QFN PackageEnergy Star Low Quiescent Current Iq< 15-µA Off-State Battery Discharge Current< 1.5-mA Off-State Input Quiescent CurrentBattery Thermistor Sense for JEITA GuidelineCompatible Charger600-kHz NMOS-NMOS Synchronous BuckConverterStand-Alone Charger Support for Li-Ion or Li-Polymer5-V–28-V VCC Input Operating Range andSupports 1 to 6 Battery CellsUp to 10-A Charge Current and Adapter CurrentHigh-Accuracy Voltage and Current Regulation±0.5% Charge Voltage Accuracy±3% Charge Current Accuracy±3% Adapter Current AccuracyIntegrationAutomatic System Power Selection FromAdapter or BatteryInternal Loop CompensationInternal Soft-StartDynamic Power ManagementSafety ProtectionInput Overvoltage ProtectionBattery DetectionReverse Protection Input FETProgrammable Safety TimerCharge Overcurrent ProtectionBattery Short ProtectionBattery Overvoltage ProtectionThermal ShutdownStatus OutputsAdapter PresentCharger Operation StatusCharge Enable Pin6-V Gate Drive for Synchronous Buck Converter30-ns Driver Dead-Time and 99.5% MaximumEffective Duty Cycle24-Pin, 4-mm × 4-mm QFN PackageEnergy Star Low Quiescent Current Iq< 15-µA Off-State Battery Discharge Current< 1.5-mA Off-State Input Quiescent Current

Description

The bq2461x device is a highly integrated, Japan Electronic Information Technology Association (JEITA) guideline-compatible, Li-ion or Li-polymer switched-mode battery charge controller. The device offers a constant-frequency synchronous switching PWM controller with high-accuracy charge current and voltage regulation, charge preconditioning, termination, adapter current regulation, and charge status monitoring The bq2461x charges the battery in three phases: preconditioning, constant current, and constant voltage. Charge is terminated when the current reaches a minimum user-selectable level. A programmable charge timer provides a safety backup. The bq2461x automatically restarts the charge cycle if the battery voltage falls below an internal threshold, and enters a low quiescent current sleep mode when the input voltage falls below the battery voltage. The bq2461x device is a highly integrated, Japan Electronic Information Technology Association (JEITA) guideline-compatible, Li-ion or Li-polymer switched-mode battery charge controller. The device offers a constant-frequency synchronous switching PWM controller with high-accuracy charge current and voltage regulation, charge preconditioning, termination, adapter current regulation, and charge status monitoring The bq2461x charges the battery in three phases: preconditioning, constant current, and constant voltage. Charge is terminated when the current reaches a minimum user-selectable level. A programmable charge timer provides a safety backup. The bq2461x automatically restarts the charge cycle if the battery voltage falls below an internal threshold, and enters a low quiescent current sleep mode when the input voltage falls below the battery voltage.