Transcription of Lead-Acid Fast-Charge IC datasheet - Texas …
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Lead-Acid Fast-Charge IC datasheet - Texas …
Features Conforms to battery manufactur-ers' charge recommendations forcyclic and float charge Pin-selectable charge algorithms-Two-Step Voltage withtemperature-compensatedconstant-volt age maintenance-Two-Step Current withconstant-rate pulsed currentmaintenance-Pulsed Current: hysteretic,on-demand pulsed current Pin-selectable charge terminationby maximum voltage, 2V, mini-mum current, and maximumtime Pre-charge qualification detectsshorted, opened, or damaged cellsand conditions battery Charging continuously qualified bytemperature and voltage limits Internal temperature-compen-sated voltage reference Pulse-width modulation control-Ideal for high-efficiencyswitch-mode power conversion-Configurable for linear orgated current use Direct LED control outputs dis-play charge status and fault con-ditionsGeneral DescriptionThe bq2031 Lead-Acid fast ChargeIC is designed to optimize chargingof Lead-Acid chemistry batteries. Aflexible pulse-width modulationregulator allows the bq2031 to con-trol constant-voltage, constant-current, or pulsed-current regulator frequency is set by anexternal capacitor for design flexi-bility.
Fast charge termination Maintenance charging. V. Charge regulation. Charge Algorithms. Three charge algorithms are available in the bq2031: Two-Step Voltage
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