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ICS1722N Datasheet(PDF) 1 Page - Galaxy Power, Inc. |
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ICS1722N Datasheet(HTML) 1 Page - Galaxy Power, Inc. |
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1 / 24 page  ICS1722 QuickSaver® Charge Controller for Nickel-Cadmium and Nickel-Metal Hydride Batteries General Description The ICS1722 is a CMOS device designed for the intelligent charge control of either nickel-cadmium (NiCd) or nickel-metal hydride (NiMH) batteries. The controller uses a pulsed-current charging technique together with voltage slope termination. The ICS1722 employs a four stage charge sequence that provides a complete recharge without overcharging. The controller has nine user- selectable charge rates and six user-selectable auxiliary modes available for customized charging systems. The ICS1722 monitors for the presence of a battery and begins charging when a battery is installed. The ICS1722 is for applications where temperature sensing is not required by the charge controller. Applications Battery charging systems for: - Portable consumer electronics - Power tools - Audio/video equipment - Communications equipment Features • Charge termination methods include: - Voltage slope - Charge timers • Four stage charge sequence: - Soft start charge - Fast charge - Topping charge - Maintenance charge • Reverse-pulse charging available in all charge stages • Nine programmable charge rates between 15 minutes (4C) • and four hours (C/4) • Continuous polling mode for battery detection • Six auxiliary modes include: - Discharge-before-charge - Ten hour C/10 conditioning charge - Direct to C/40 maintenance charge - Charging system test provided through controller • Adjustable open circuit (no battery) voltage reference Block Diagram CHARGE DISCHARGE SELECT CHARGE VOLTAGE SENSE MODE SELECT OPEN CIRCUIT REFERENCE PROCESSOR MICROCODE CONTROL ADC RAM ROM OUTPUT CONTROL 0.5V RESET CHARGE MODE LED MAINTENANCE MODE LED POLLING MODE LED CONTROL CONTROL RC OSCILLATOR |
Similar Part No. - ICS1722N |
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Similar Description - ICS1722N |
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