BQ24630RGER Stand-Alone Synchronous Switch-Mode Lithium Phosphate Battery Charger
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Stand-Alone Synchronous Switch-Mode Li-Ion or Li-Polymer Battery Charger with System Power Selector and Low IqFEATURES • 600 kHz NMOS-NMOS Synchronous Buck • Energy Star Low Quiescent Current Iq Converter – < 15 µA Off-State Battery Discharge current • Stand-alone Charger Support for Li-Ion or – < 1.5 mA Off-State Input Quiescent Current Li-Polymer • 5V–28V VCC Input Operating Range and APPLICATIONS Support 1-6 Battery Cells (bq24610) • Netbook, Mobile Internet Device and • 5V–24V VCC Input Operating Range and Ultra-Mobile PC Support 1-5 Battery Cells (bq24617) • Personal Digital Assistants • Up to 10A Charge Current and Adapter Current • Handheld Terminals • Industrial and Medical Equipment • High-Accuracy Voltage and Current Regulation • Portable Equipment – ±0.5% Charge Voltage Accuracy – ±3% Charge Current Accuracy DESCRIPTION – ±3% Adapter Current Accuracy
DESCRIPTION The bq24610/7 is highly integrated Li-ion or Li-polymer switch-mode battery charge controller. It offers a constant-frequency synchronous switching PWM controller with high accuracy charge currentand voltage regulation, charge preconditioning, termination, adapter current regulation and charge status monitoring.
The bq24610/7 charges the battery in three phases:preconditioning,
constant currentand constantvoltage. Charge is terminated when the
current 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 bq24610/7 automatically
restarts the charge cycle if the battery voltage falls below
an nternal threshold, and enters a low-quiescent current
sleep mode when the input voltage falls below the
battery voltage. TYPICAL APPLICATION STOCK LIST
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| Product Tags: digital integrated circuits linear integrated circuits |
