Introduction
This manual provides detailed instructions for the safe and effective use of the HI-Link HLK-PM01 AC-DC 220V to 5V Step-Down Power Supply Module. Please read this manual thoroughly before installation and operation.
Figure 1: Top view of the HLK-PM01 AC-DC 220V to 5V Step-Down Power Supply Module, showing the HI-Link logo, input/output specifications, and model number.
Product Features
- Ultra-thin, subminiature design for compact integration.
- Full voltage input range (90 ~ 264 Vac) for versatile applications.
- Low ripple and low noise output for stable power delivery.
- Integrated output overload and short circuit protection function for enhanced safety.
- High efficiency and power density.
- Designed to meet EMC and safety testing requirements.
- Low power consumption, green environmental protection, with no-load loss less than 0.1 W.
- 100% load test and aging test performed.
- Meets the requirements of UL and CE standards.
Safety Precautions
Always observe the following safety precautions to prevent injury or damage to the module:
- Ensure the input voltage is within the specified range (90-264 Vac).
- Do not exceed the maximum output current of 0.6A.
- Avoid direct contact with the module's pins when power is applied.
- Install the module in a well-ventilated area to prevent overheating.
- Ensure proper insulation and clearance from other components.
- This module is intended for integration into larger electronic systems by qualified personnel.
Setup
1. Pin Configuration
The HLK-PM01 module has clearly labeled pins for input and output connections.
Figure 2: Angled view of the HLK-PM01 module, highlighting the input (AC) and output (+Vo, -Vo) pins.
- AC Input: Two pins for AC line voltage (90-264V).
- +Vo Output: Positive 5V DC output.
- -Vo Output: Negative (Ground) 5V DC output.
2. Electrical Connection
- Identify the AC input terminals on the module. Connect your AC power source (90-264V) to these two terminals.
- Identify the +Vo and -Vo output terminals. Connect the positive input of your 5V DC load to +Vo and the negative/ground input to -Vo.
- Ensure all connections are secure and properly insulated to prevent short circuits.
Note: For optimal performance and safety, consider adding appropriate input filtering and output capacitance as per your application's requirements, although the module has internal filtering.
Operating Instructions
Once the module is correctly wired, operation is straightforward:
- Apply AC power to the input terminals. The module will immediately begin converting the AC voltage to a stable 5V DC output.
- Monitor the load to ensure it operates within the module's specified output current (max 0.6A).
- The module is designed for continuous operation within its specified parameters.
The module features built-in overload and short-circuit protection. In case of an overload or short circuit, the module will automatically protect itself and resume normal operation once the fault condition is removed.
Maintenance
The HLK-PM01 module is designed for maintenance-free operation. However, periodic checks are recommended:
- Visual Inspection: Periodically inspect the module and its connections for any signs of physical damage, loose wires, or discoloration.
- Dust Removal: Ensure the module is free from excessive dust accumulation, which can impede heat dissipation. Use a soft brush or compressed air if necessary.
- Temperature Monitoring: While operating, the surface temperature of the main converter should not exceed 90°C, and the shell surface maximum temperature should not exceed 60°C. Ensure adequate ventilation.
Do not attempt to open or repair the module. Refer to qualified personnel for any issues beyond basic inspection.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No 5V output | No AC input power; Incorrect wiring; Module failure. | Verify AC input power supply. Check all wiring connections for correctness and security. If wiring is correct and power is present, the module may be faulty and require replacement. |
| Output voltage unstable or low | Overload condition; Poor connections; Input voltage fluctuations. | Reduce the load current to below 0.6A. Ensure all connections are firm. Verify the stability of the AC input voltage. |
| Module is hot | Excessive load; Insufficient ventilation. | Ensure the load current does not exceed 0.6A. Provide adequate airflow around the module. |
| Module shuts down intermittently | Overload protection triggered; Short circuit detected. | Check for intermittent short circuits or transient overloads on the output. The module should resume operation once the fault is cleared. |
Specifications
| Parameter | Value |
|---|---|
| Model Number | HLK-PM01 |
| Input Voltage Range | 90 - 264 Vac |
| Output Voltage | 5 Vdc |
| Output Current | 0.6 A (Max) |
| Rated Power | 3 W |
| No-Load Loss | < 0.1 W |
| Dimensions (L x W x H) | Approximately 35mm x 21mm x 16mm |
| Protection Features | Output Overload, Short Circuit Protection |
| Compliance | UL, CE requirements |
Note: Dimensions are approximate based on customer reviews. Refer to official HI-Link datasheets for precise measurements.
Warranty and Support
For warranty information and technical support, please contact your point of purchase or visit the official HI-Link website. Keep your purchase receipt as proof of purchase.
For additional resources and product information, you may visit the HI-Link Store on Amazon.
