BQ24630 Series

Standalone 1-7 cell Buck battery charge controller for LiFePO4 batteries with system power

Catalog

Standalone 1-7 cell Buck battery charge controller for LiFePO4 batteries with system power

Part	Fault Protection	Mounting Type	Battery Pack Voltage [Max]	Charge Current - Max [Max]	Voltage - Supply (Max) [Max]	Current - Charging	Package / Case	Number of Cells [Max] [custom]	Number of Cells [Min] [custom]	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Programmable Features	Battery Chemistry	Contents	Type	Supplied Contents	Secondary Attributes	Utilized IC / Part	Primary Attributes	Primary Attributes [Max]	Embedded	Function
Texas Instruments BQ24630RGET	Over Current Over Temperature Over Voltage Short Circuit	Surface Mount	26 V	10 A	28 V	Constant - Programmable	24-VFQFN Exposed Pad	7	1	24-VQFN (4x4)	85 °C	-40 °C	Current Timer	Lithium Iron Phosphate
Texas Instruments BQ24630EVM															Board(s)	Power Management	Board(s)	On-Board LEDs	BQ24630	Multi Cell-Li-ion / Li-Polymer	26 V		Battery Charger

Catalog

Standalone 1-7 cell Buck battery charge controller for LiFePO4 batteries with system power

Key Features

• 300-kHz NMOS-NMOS Synchronous BuckConverterStand-Alone Charger Specifically for LithiumPhosphate5-V–28-V VCC Input Operating Range,Supports 1–7 Battery CellsHigh-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 Management (DPM)Safety ProtectionInput Overvoltage ProtectionBattery Thermistor Sense Suspend Charge atHot/Cold and Automatically ICHARGE/8 atHot/Cold or Warm/CoolBattery 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 99.95% Max.Effective 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 CurrentAPPLICATIONSPower Tool and Portable EquipmentPersonal Digital AssistantsHandheld TerminalsIndustrial and Medical EquipmentNetbook, Mobile Internet Device, and Ultra-MobilePCAll other trademarks are the property of their respective owners300-kHz NMOS-NMOS Synchronous BuckConverterStand-Alone Charger Specifically for LithiumPhosphate5-V–28-V VCC Input Operating Range,Supports 1–7 Battery CellsHigh-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 Management (DPM)Safety ProtectionInput Overvoltage ProtectionBattery Thermistor Sense Suspend Charge atHot/Cold and Automatically ICHARGE/8 atHot/Cold or Warm/CoolBattery 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 99.95% Max.Effective 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 CurrentAPPLICATIONSPower Tool and Portable EquipmentPersonal Digital AssistantsHandheld TerminalsIndustrial and Medical EquipmentNetbook, Mobile Internet Device, and Ultra-MobilePCAll other trademarks are the property of their respective owners

Description

The bq24630 is a highly integrated lithium phosphate 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 bq24630 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 bq24630 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 bq24630 is a highly integrated lithium phosphate 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 bq24630 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 bq24630 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.