Catalog
Standalone 1-6 cell Buck battery charge controller
Key Features
• 1.2-MHz NMOS-NMOS Synchronous Buck ConverterStand-Alone Charger Support for Li-Ion or Li-Polymer5-V – 28-V VCC Input Voltage Range and Supports1S-6S Battery CellsUp to 10-A Charge Current and Adapter CurrentHigh-Accuracy Voltage and Current Regulation±0.5% Charge-Voltage Accuracy±3% Charge-Current AccuracyIntegrationInternal Loop CompensationInternal Soft StartSafetyInput Overvoltage ProtectionBattery Thermistor Sense Hot/Cold Charge SuspendBattery DetectionBuilt-In Safety TimerCharge Overcurrent ProtectionBattery Short ProtectionBattery Overvoltage ProtectionThermal ShutdownStatus OutputsAdapter PresentCharger Operation StatusCharge Enable Pin6-V Gate Drive for Synchronous Power Converter30-ns Driver Dead-Time and 99.5% Max. Effective Duty Cycle16-Pin 3.5-mm × 3.5-mm QFN packageEnergy Star Low Quiescent Current Iq< 15-µA Off-State Battery Discharge Current< 1.5-mA Off-State Input Quiescent Current1.2-MHz NMOS-NMOS Synchronous Buck ConverterStand-Alone Charger Support for Li-Ion or Li-Polymer5-V – 28-V VCC Input Voltage Range and Supports1S-6S Battery CellsUp to 10-A Charge Current and Adapter CurrentHigh-Accuracy Voltage and Current Regulation±0.5% Charge-Voltage Accuracy±3% Charge-Current AccuracyIntegrationInternal Loop CompensationInternal Soft StartSafetyInput Overvoltage ProtectionBattery Thermistor Sense Hot/Cold Charge SuspendBattery DetectionBuilt-In Safety TimerCharge Overcurrent ProtectionBattery Short ProtectionBattery Overvoltage ProtectionThermal ShutdownStatus OutputsAdapter PresentCharger Operation StatusCharge Enable Pin6-V Gate Drive for Synchronous Power Converter30-ns Driver Dead-Time and 99.5% Max. Effective Duty Cycle16-Pin 3.5-mm × 3.5-mm QFN packageEnergy Star Low Quiescent Current Iq< 15-µA Off-State Battery Discharge Current< 1.5-mA Off-State Input Quiescent Current
Description
AI
The bq24600 is a highly integrated Li-ion or Li-polymer switch-mode battery-charge controller. It offers a constant-frequency synchronous PWM controller with high-accuracy charge current and voltage regulation, charge preconditioning, termination, and charge status monitoring,
The bq24600 charges the battery in three phases: preconditioning, constant current, and constant voltage. Charge is terminated when the current reaches a minimum level. An internal charge timer provides a safety backup. The bq24600 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 bq24600 is a highly integrated Li-ion or Li-polymer switch-mode battery-charge controller. It offers a constant-frequency synchronous PWM controller with high-accuracy charge current and voltage regulation, charge preconditioning, termination, and charge status monitoring,
The bq24600 charges the battery in three phases: preconditioning, constant current, and constant voltage. Charge is terminated when the current reaches a minimum level. An internal charge timer provides a safety backup. The bq24600 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.
