HLK-1D1215 Energy Module

1W series DC-DC power module is one type power supply module with small size, high efficiency, tiny power, constant voltage, input isolation and unregulated, single output; this series of products is specially designed to generate a group of isolated voltage to input power supply in the on-board power system applications. This product is suitable for purely digital circuits, general low-frequency analog circuits, relay drive circuits, data exchange circuits, etc.

Application Notes : HLK-1D1215 power module

1. Input requirements: ensure that the output voltage fluctuation range of the power supply does not exceed the input requirements of the DC/DC module itself, and the output power of the input power supply must be greater than the output power of the DC/DC module;
2. Recommended circuit 1: For occasions with general requirements for ripple and noise, a filter capacitor can be connected in parallel to the input and output ends. The external circuit is shown in the above figure (1). The recommended value of the filter capacitor is shown in Table (1) ). Output load requirements: Try to avoid no-load use. When the actual power consumption of the load is less than 10% of the module’s output rated power or there is no-load phenomenon, it is recommended to connect a dummy load to the output end. The dummy load (resistance) can be in accordance with the rated power of the module. 5~10% calculation, resistance value=Uout/(1W*10%);
3. Overload protection: Under normal working conditions, the output circuit of this product has no protection against overload. The easiest way is to connect a self-recovery fuse in series at the input end, or add a circuit breaker to the circuit;
4. The capacitance value of the external capacitor at the output end should not be too large, otherwise it will easily cause overcurrent or poor startup when the module starts;
5. If the product works below the minimum required load, it cannot be guaranteed that the product performance meets all the performance indicators in this manual;
6. The maximum capacitive load is tested under the input voltage range and full load conditions;
7. Except for special instructions, all indicators in this manual are measured at Ta=25°C/humidity < 75%RH, nominal input voltage and output rated load;
8. All index test methods in this product manual are based on our company’s standards;
9. Our company can provide product customization, and you can directly contact our technical staff for specific information;
10. Product specifications are subject to change without notice.