12V Battery Charger Module 3A PWM Switch-Mode Charging Controller for Lead-Acid Batteries 1-1000AH with Terminal

About this item

The DD30CRTA is specially designed for charging 12V lead-acid battery with trickle charge, constant current charge, over-charge and float mode. | The DD30CRTA is a PWM switch-mode battery charger controller for 12V lead-acid battery in a small package using few external components. | Suitable for 1-1000AH 12V Lead-Acid Battery charger.The Regulation Voltage in Over Voltage Mode and Float Mode: The regulation voltage VOC at BAT pin in over mode is set at 14.8V(Typical) with ±1.5% accuracy. In float mode, the regulation voltage VFLOAT at BAT pin is 91.57% of that in over mode, which is 13.55V(Typical). Trickle Mode At the beginning of a cycle, if the battery voltage is below 75%xVOC | In over-charge and float mode, the regulation voltage is internally set.Deeply discharged batteries are automatically trickle charged at 17.5% of the programmed constant current until the cell voltage exceeds 75% of the regulation voltage in over-charge mode. The over-charge is terminated once the charging current drops to 38% of the | The constant current is programmable with a single sense resistor.constant current, then DD30CRTA will enter float mode. A new cycle automatically restarts if the battery voltage falls below 83.95% of the over-charge voltage in float-charge mode. DD30CRTA will automatically enter sleep mode when input voltage is lower than battery voltage. Other features include under voltage lockout and status indication, etc.

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