Color	no terminal With terminal
no terminal With terminal
Voltage	28V

Description
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Item specifics

Brand Name eletechsup
Type DC/DC Converters
Certification NONE
Origin CN(Origin)
Size 66 x 20 x 10.mm
Model Number DD30CRTA_B
Output Frequency DC-DC
Output Type Single
Output Power 1 - 50W
Weight 9g(with Terminal) 6g(no Terminal)
is_customized Yes
Output Current <3A
Input Voltage DC 15-28V

Product Description

Product Name: 12V Lead-Acid Battery Dedicated charger 3A Current 1-10000AH UPS Solar Automobile DD30CRTAPacking list:1 PCS DD30CRTA DD30CRTB 3A 12V 1-1000AH Lead-Acid Battery Charger

3A 12V 1-1000AH Lead-Acid Battery Charger Description: Suitable for 1-10000AH 12V Lead-Acid Battery charger Power supply voltage : 15-28VDC(Recommended 16-25VDC)Over Charge Voltage is 14.8VFloat Charge Voltage is 13.55VMaximum charge current : 3AQuiescent current: about 1.8mAHigh PWM Switching Frequency:300KHzFixed Over-Charge VoltageOvercurrent protectionAutomatic Conditioning of Deeply Discharged BatteriesAutomatic RechargeCharger Status IndicationBattery Overvoltage ProtectionOperating Ambient Temperature －40℃ to ＋85℃ Size : 66 x 20x 12mm(with Terminal),66 x 20x 10mm(no Terminal)Weight : 9g(with Terminal),6g(no Terminal) Applications: Car battery chargingSolar battery chargingMobile LoadspeakerLead-Acid Battery ChargerElectric Bicycle ChargerUPS Portable Industrial and Medical EquipmentStandalone Battery Chargers

Features(If you need a chip brochure please contact me) : 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. Deeply discharged batteries are automatically trickle charged at 17.5% of the programmedconstant charge current until the cell voltage exceeds 75% of the regulation voltage inover-charge mode. The over-charge is terminated once the charging current drops to 38% of theconstant charge current, then DD30CRTA will enter float charge mode. A new charge cycleautomatically restarts if the battery voltage falls below 83.95% of the over-charge voltage infloat-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. 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 tricklecharge mode with the charge current set at about 17.5% of the constant current. End-of-Over Charge CurrentWhen the battery voltage approaches the over-charge voltage, the charger goes into the over charge mode. Inover charge mode, the charge current start to decrease and when the charge current drops to 38% of constantcharge current, the charger goes into float-charge mode. Float Charge ModeAfter the over voltage charge is terminated, the charger goes into float charge mode. In float charge mode, thebattery voltage is regulated to 91.57%×VOC, namely 13.55V(Typical). Float charge mode can compensate forthe loss of battery power due to self-discharge or external loading. Automatic Battery RechargeIn float mode, if both the battery and the input power supply (wall adapter) are present, a new charge cycle willbegin 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.