Hi-Link HLK-PM01 AC-DC Power Supply Module User Manual

1. Introduction

The Hi-Link HLK-PM01 is a 3W ultra-small series AC-DC power module designed by Shenzhen Hi-Link Electronic Co., Ltd. This module offers a global input voltage range, low temperature rise, low power consumption, high efficiency, high reliability, and high safety isolation. It is widely used in smart home applications, automation control, communications equipment, instrumentation, and other industrial sectors.

For a detailed technical document, please refer to the official user manual PDF: HLK-PM01 User Manual (PDF)

2. Specifications

2.1. Product Features

• Ultra-thin, ultra-small, smallest volume.
• Global universal input voltage (90-265Vac).
• Low power consumption, green environmental protection, no-load loss < 0.1W.
• Low ripple, low noise.
• High output short circuit and over-current protection and self-recovery.
• High efficiency, high power density.
• Input and output isolation voltage 3000Vac.
• 100% full load aging and testing.
• High reliability, long life design, continuous working time is greater than 100,000 hours.
• Meets UL, CE requirements; product design meets EMC and safety testing requirements.
• Uses high-quality environmentally friendly waterproof plastic potting, meeting IP65 standards for moisture, vibration, water, and dust.
• Economic solution, cost-effective.
• Works without external circuit.
• 1 year quality guarantee period.

2.2. General Specifications

2.3. Electrical Characteristics (HLK-PM01: 5V/600mA)

2.4. Environmental Conditions

2.5. Dimensions and Weight

The module has compact dimensions, making it suitable for integration into various projects.

• Dimension: 34 x 20.2 x 15.4 mm
• Weight: 20 ± 2g

Image: Dimensional drawing of the HLK-PM01 module with pin functions. Pin 1 & 2 are AC input, Pin 3 is -Vo (output negative), Pin 4 is +Vo (output positive).

3. Setup and Installation

The HLK-PM01 module is designed for easy integration. It requires minimal external components for typical applications.

3.1. Pin Functions

• Pins 1 & 2: AC Input - Connect to your AC power source (90-265Vac).
• Pin 3: -Vo - Negative DC output.
• Pin 4: +Vo - Positive DC output (5V).

3.2. Typical Application Circuit

The module can be integrated into a circuit using a fuse, varistor, and filter capacitors for optimal performance and safety. The input design includes a UL listed 1A fuse for protection.

Image: Typical application circuit diagram showing connections for F1 (Fuse), MOV1 (Varistor), C1 (X Safety Capacitor), L1 (Common-mode Inductor), and C2 (Filter Capacitor) with the power module.

3.3. Recommended External Components

Note: Fuse and varistor are basic protective circuits and must be connected. If authentication/certification is required, the safety capacitance and common-mode inductance should not be omitted.

Image: Example of an input capacitor.

Image: Example of a common-mode inductor.

4. Operating Conditions

The module is designed to operate reliably within specified input voltage, load, and temperature ranges.

4.1. Input Voltage and Load Characteristics

The module maintains stable output across a wide input voltage range. The load capacity varies with input voltage, as shown in the characteristic curve.

Image: Graph illustrating the relationship between input voltage (AC and DC) and the maximum permissible load percentage.

4.2. Working Temperature and Load Characteristics

The module's maximum load capacity is also dependent on the ambient working temperature. Ensure adequate cooling, especially at higher temperatures and loads.

Image: Graph showing the derating curve for load percentage versus ambient temperature. The load capacity decreases as temperature increases beyond a certain threshold.

5. Maintenance

The HLK-PM01 module is designed for long-term reliability and requires minimal maintenance. Its waterproof potting (IP65 standard) protects against moisture, vibration, water, and dust.

• Environmental Protection: While robust, avoid exposing the module to extreme conditions beyond its specified operating ranges.
• Cleaning: If necessary, gently clean the exterior with a dry, soft cloth. Do not use liquids or abrasive cleaners.
• Inspection: Periodically inspect connections for secure fit and any signs of damage or corrosion.

6. Troubleshooting

If you encounter issues with your HLK-PM01 module, consider the following common problems and solutions:

• No Output Voltage:
  • Check the input power supply (AC 90-265V) to ensure it is connected correctly and within the specified range.
  • Verify that the fuse (F1) in the application circuit is intact. A blown fuse indicates an overcurrent condition.
  • Ensure all connections to the module's pins are secure and correct (AC input to pins 1 & 2, DC output from pins 3 & 4).
• Incorrect Output Voltage:
  • Measure the output voltage with a multimeter. It should be 5.0Vdc ± 0.2Vdc under full load.
  • Check the load connected to the module. Ensure it does not exceed the rated output current of 600mA. Overloading can cause voltage drop.
  • Verify that external filter capacitors (C2) are correctly installed and functioning.
• Module Overheating:
  • Ensure adequate natural cooling. The module relies on natural convection.
  • Check the ambient temperature. Operating at high temperatures (above 60°C) or with excessive load can lead to overheating. Refer to the working temperature and load characteristic curve.
• Output Short Circuit Protection:
  • The module features direct short circuit protection. In case of a short circuit at the output, the module will automatically shut down and return to normal operation once the short circuit is removed. This prevents damage to the device.

7. Safety Features

The HLK-PM01 module incorporates several safety features and complies with international standards:

• Certification: Product design meets UL and CE safety certification requirements.
• Input Protection: The input design adopts a UL listed 1A fuse.
• PCB Material: The PCB board is made of double-sided copper clad foil with a material fire resistance grade of 94-V0.
• Safety Standards: Meets UL1012, EN60950, UL60950.
• Insulation Voltage: I/P-O/P: 2500Vac.
• Insulation Resistance: I/P-O/P > 100M Ohms/500Vdc at 25°C, 70% RH.
• EMC Compliance: Conduction and radiation meet EN55011, EN55022 (CISPR22).
• Electrostatic Discharge: IEC/EN 61000-4-2 level 4 (8kV/15kV).
• Radio Frequency Radiation Immunity: IEC/EN 61000-4-3.

8. User Tips

• Clear Identification: Always double-check the input (AC) and output (+Vo, -Vo) pins before making connections to avoid damage. The module clearly labels these on its casing.
• Proper Wiring: When connecting, ensure wires are properly insulated and secured to prevent accidental short circuits or disconnections.
• External Components: For robust and safe operation, especially in critical applications, it is highly recommended to use the external fuse, varistor, and filter capacitors as outlined in the typical application circuit.
• Load Management: Be mindful of the module's 3W power rating and 600mA output current at 5V. Do not exceed these limits to ensure long-term reliability and prevent damage.

9. Warranty and Support

The Hi-Link HLK-PM01 module comes with a 1-year quality guarantee period from the date of purchase.

For technical support, warranty claims, or further inquiries regarding the HLK-PM01 module, please contact Shenzhen Hi-Link Electronic Co., Ltd. or your authorized distributor. When contacting support, please provide the model number (HLK-PM01) and a detailed description of the issue.