DC to DC Intelligent Battery Charger ICI2412144

While many applications can be supplied using a standard voltage converter or stabiliser, sometimes there is a requirement to charge one DC battery from another in order to provide independent power. The Alfatronix range of DC-DC chargers are based on the very successful PowerVerter range but configured to offer a four stage charging programme that will ensure that batteries are charged to the maximum capacity providing long term reliable power.  

These products come with many of the same safety and protection features as the PowerVerters, but are also additionally designed to detect faulty batteries and dead cells. They will also ensure that they will not operate unless the source battery is attached to a charging source such as a vehicle alternator or mains unit. In this way, you can ensure that the charger will not allow unintentional draining of the source battery.

Technical Data

Cont/Int Power:  12A Isolated 

Nominal Voltage:  24V dc input  12Vdc output (variable charge voltage)

Input voltage range:  27-32Vdc, 13.5-15Vdc Configured to prevent depletion of source battery

Output voltage  :12V or 24V nominal through the intelligent charging curve. Please see charge graph in image section for further information.

Transient voltage protection: Meets ISO7637-2 International standard for 24Vdc commercial vehicles

Electrostatic voltage protection:  Meets ISO10605, ISO14892, up to 8kV contact, 15kV discharge

Output noise: less than 50mV pk-pk (100mV on 24V units) at continuous load. Meets CISPR25

Off load current (quiescent current) Typically less than 5mA. Unit will shut down when source battery is not being charged

Power conversion efficiency: Typically: 85%

Isolation: Up to 400Vrms between input, output and case, on isolated products only

Mean time between failures: up to162 years (HRD4)

Operating temperature: -25 to +30 degreesC to meet this specification table  +30 to +80 dgreesC de rate linearly to 0A

Storage temperature:   -25 to +100 degrees C

Operating humidity:  95% max., non-condensing

Casework:  Anodised aluminium, glass filled polycarbonate, dust water and impact resistance to IP533

Connections:  Five 6.3mm push-on flat blade connectors

Output indicator:  Multicolour LED adjacent to output terminals indicating power and charging mode

Mounting method : ‘Click ‘n’ fit mounting clip, fitted separately using three hole fixing

Safe area protection: Over current Limited by current sensing circuit

Over heat: Limited by temperature sensing circuit

Transients:  Protected by filters and rugged component selection

Catastrophic failure:  Protected by internal input and output fuses

Approvals:  2004/108/EC The general EMC directive

                    2006/96/EC The automotive directive

                    93/68/EEC The CE marking directive

Markings  CE and e marked (planned)

Alfatronix