BQ24618 Series
Standalone 1-6 cell Buck battery charge controller USB friendly with 5V-28V input
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
Standalone 1-6 cell Buck battery charge controller USB friendly with 5V-28V input
| Part | Fault Protection | Voltage - Supply (Max) [Max] | Operating Temperature [Max] | Operating Temperature [Min] | Supplier Device Package | Charge Current - Max [Max] | Current - Charging | Battery Chemistry | Number of Cells [Max] [custom] | Number of Cells [Min] [custom] | Programmable Features | Battery Pack Voltage [Max] | Package / Case | Mounting Type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ24618RGER | Over Current, Over Temperature, Over Voltage, Short Circuit | 28 V | 85 °C | -40 °C | 24-VQFN (4x4) | 10 A | Constant - Programmable | Lithium Ion/Polymer | 6 | 1 | Current, Timer | 26 V | 24-VFQFN Exposed Pad | Surface Mount |
Texas Instruments BQ24618RGET | Over Current, Over Temperature, Over Voltage, Short Circuit | 28 V | 85 °C | -40 °C | 24-VQFN (4x4) | 10 A | Constant - Programmable | Lithium Ion/Polymer | 6 | 1 | Current, Timer | 26 V | 24-VFQFN Exposed Pad | Surface Mount |
Key Features
• USB-Friendly 4.7-V to 28-V Input OperatingRangeStand-Alone Charge Controller to Support 1 to 6Li-Ion or Li-Polymer Battery CellsUp to 10-A Charge Current and Adapter Current600-kHz NMOS-NMOS Synchronous BuckConverterHigh-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 Thermistor Sense Hot/Cold ChargeSuspendBattery 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 CycleEnergy Star Low Quiescent Current Iq< 15-µA Off-State Battery Discharge Current< 1.5-mA Off-State Input Quiescent CurrentAPPLICATIONSTablet PCsSmart PhonesPortable Media Players, Navigation Devices,Notebooks and Ultra-Mobile PCsPersonal Digital AssistantsHandheld TerminalsIndustrial and Medical EquipmentAll other trademarks are the property of their respective ownersUSB-Friendly 4.7-V to 28-V Input OperatingRangeStand-Alone Charge Controller to Support 1 to 6Li-Ion or Li-Polymer Battery CellsUp to 10-A Charge Current and Adapter Current600-kHz NMOS-NMOS Synchronous BuckConverterHigh-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 Thermistor Sense Hot/Cold ChargeSuspendBattery 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 CycleEnergy Star Low Quiescent Current Iq< 15-µA Off-State Battery Discharge Current< 1.5-mA Off-State Input Quiescent CurrentAPPLICATIONSTablet PCsSmart PhonesPortable Media Players, Navigation Devices,Notebooks and Ultra-Mobile PCsPersonal Digital AssistantsHandheld TerminalsIndustrial and Medical EquipmentAll other trademarks are the property of their respective owners
Description
AI
The bq24618 device is highly integrated Li-ion or Li-polymer switched-mode battery-charge controller. The bq24618 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 bq24618 operates from either a USB port or AC adapter and supports charge currents up to 10 A. The device 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 for charge termination. The bq24618 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 bq24618 device is highly integrated Li-ion or Li-polymer switched-mode battery-charge controller. The bq24618 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 bq24618 operates from either a USB port or AC adapter and supports charge currents up to 10 A. The device 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 for charge termination. The bq24618 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.