DD30CRTA 3A 12V 1-1000AH Lead-Acid Battery Accumulator Storage Cell Charger Charging for UPS Car Sol
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Condition
New
Location
International
Bob Shop ID
615113730
Specifications:? ? Power supply voltage : 15-28VDC(Recommended 16-25VDC) Over? Charge Voltage is 14.8V Float Charge Voltage is 13.55V Maximum charge current : 3A Quiescent current: about 1.8mA High PWM Switching Frequency:300KHz Operating Ambient Temperature: -40a?? to +85a?? Size: 66 x 20x 12mm Weight : 9g ? Applications: ? Car battery charging Solar battery charging Mobile Loadspeaker Lead-Acid Battery Charger Electric Bicycle Charger UPS? Portable Industrial and Medical Equipment Standalone Battery Chargers ?? 
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Features: ? Fixed Over-Charge Voltage Overcurrent protection Automatic Conditioning of Deeply Discharged Batteries Automatic Recharge Charger Status Indication Battery Overvoltage Protection Suitable for 1-10000AH 12V Lead-Acid Battery charger? ? 1. The DD30CRTA is a PWM switch-mode battery charger controller for 12V lead-acid battery in a small package using few external components. The DD30CRTA is specially designed for charging 12V lead-acid battery with trickle charge, constant current charge, over-charge and float charge mode. In over-charge and float charge mode, the regulation voltage is internally set.? The constant charge current is programmable with a single sense resistor. ? 2. Deeply discharged batteries are automatically trickle charged at 17.5% of the programmed constant charge 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 constant charge current, then DD30CRTA will enter float charge mode. A new charge 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 undervoltage lockout and status indication, etc. ? 3. The Regulation Voltage in Over Voltage Mode and Float Charge Mode? The regulation voltage VOC at BAT pin in over charge mode is set at 14.8V(Typical) with ±1.5% accuracy. In float charge mode, the regulation voltage VFLOAT at BAT pin is 91.57% of that in over charge mode, which is 13.55V(Typical). Trickle Charge Mode At the beginning of a charge cycle, if the battery voltage is below 75%??VOC, the charger goes into trickle charge mode with the charge current set at about 17.5% of the constant current. ? 4. End-of-Over Charge Current When the battery voltage approaches the over-charge voltage, the charger goes into the over charge mode. In over charge mode, the charge current start to decrease and when the charge current drops to 38% of constant charge current, the charger goes into float-charge mode. ? 5. Float Charge Mode After the over voltage charge is terminated, the charger goes into float charge mode. In float charge mode, the battery voltage is regulated to 91.57%??VOC, namely 13.55V(Typical). Float charge mode can compensate for the loss of battery power due to self-discharge or external loading. ? 6. Automatic Battery Recharge In float mode, if both the battery and the input power supply (wall adapter) are present, a new charge cycle will begin if the battery voltage drops below 83.95%??VOC due to self-discharge or external loading. A new charge cycle can also be started manually by plugging off the input supply and reapplying it. ? Package Included: ? 1 x 3A 12V 1-1000AH Lead-Acid Battery Charger ?
? ? Features: ? Fixed Over-Charge Voltage Overcurrent protection Automatic Conditioning of Deeply Discharged Batteries Automatic Recharge Charger Status Indication Battery Overvoltage Protection Suitable for 1-10000AH 12V Lead-Acid Battery charger? ? 1. The DD30CRTA is a PWM switch-mode battery charger controller for 12V lead-acid battery in a small package using few external components. The DD30CRTA is specially designed for charging 12V lead-acid battery with trickle charge, constant current charge, over-charge and float charge mode. In over-charge and float charge mode, the regulation voltage is internally set.? The constant charge current is programmable with a single sense resistor. ? 2. Deeply discharged batteries are automatically trickle charged at 17.5% of the programmed constant charge 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 constant charge current, then DD30CRTA will enter float charge mode. A new charge 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 undervoltage lockout and status indication, etc. ? 3. The Regulation Voltage in Over Voltage Mode and Float Charge Mode? The regulation voltage VOC at BAT pin in over charge mode is set at 14.8V(Typical) with ±1.5% accuracy. In float charge mode, the regulation voltage VFLOAT at BAT pin is 91.57% of that in over charge mode, which is 13.55V(Typical). Trickle Charge Mode At the beginning of a charge cycle, if the battery voltage is below 75%??VOC, the charger goes into trickle charge mode with the charge current set at about 17.5% of the constant current. ? 4. End-of-Over Charge Current When the battery voltage approaches the over-charge voltage, the charger goes into the over charge mode. In over charge mode, the charge current start to decrease and when the charge current drops to 38% of constant charge current, the charger goes into float-charge mode. ? 5. Float Charge Mode After the over voltage charge is terminated, the charger goes into float charge mode. In float charge mode, the battery voltage is regulated to 91.57%??VOC, namely 13.55V(Typical). Float charge mode can compensate for the loss of battery power due to self-discharge or external loading. ? 6. Automatic Battery Recharge In float mode, if both the battery and the input power supply (wall adapter) are present, a new charge cycle will begin if the battery voltage drops below 83.95%??VOC due to self-discharge or external loading. A new charge cycle can also be started manually by plugging off the input supply and reapplying it. ? Package Included: ? 1 x 3A 12V 1-1000AH Lead-Acid Battery Charger ?