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　　Complete Guide to the CFKR-6 Watt Dual Output DC-DC Power converter

　　summary: CFKR-6 Watt series dual output DC-DC power converters are popular in industrial control, test measurement and communication equipment for their compact design and stable performance. This article provides a comprehensive product analysis, covering technical features, application guides, FAQs and systematic troubleshooting solutions.

　　1. Core features of CFKR-6 watt Dual output power supply

CFKR-6 watt series adopts advanced circuit design and packaging technology and has the following outstanding features:

　　Dual independent outputs: Provides multiple voltage combinations such as ±12V, ±15V, and supports symmetrical or asymmetrical output configurations

　　High conversion efficiency: Using synchronous rectification technology, the typical efficiency reaches 89%, minimizing power loss.

　　Compact package: Ultra-small size of 25.4×25.4×10.2mm, suitable for high-density PCB layout

　　Strengthen isolation protection: 1500VDC isolation voltage between input and output, 500VDC isolation voltage between output

　　wide operating temperature: -40℃ to +85℃ extended operating temperature range to adapt to harsh environments

　　Complete certification: Passed UL/IEC/EN 62368-1 certification and meets safety regulatory requirements

　　2. Frequently Asked Questions about CFKR-6 Watt Dual Output Power Supply

　　Q1: Can the dual outputs be configured with different voltage values?

A: The CFKR series supports flexible voltage configuration:

　　Symmetrical output: ±12V or ±15V standard configuration

　　Asymmetrical output: Adjusted by external resistor, supports positive and negative output different voltage values.

　　Single channel use: If only a single output is required, the other channel needs to be connected to a minimum load

　　Q2: What are the load adjustment characteristics of dual outputs?

A: Load characteristics description:

　　independent adjustment rate:Each output has independent load adjustment function

　　cross influence: When the load suddenly changes, the coupling coefficient between the two circuits is <5%

　　Balance load: It is RECOMmended that the load difference between the two channels should not exceed 80% of the rated power.

　　Q3: What should you pay attention to when using it in high temperature environment?

A: Recommendations for high temperature applications:

　　Power derating: When the ambient temperature is >+60℃, derate linearly according to 3.2%/℃

　　Enhanced heat dissipation: Lay copper foil on the bottom of the module and add thermal vias

　　air circulation: Avoid use in confined spaces and ensure air convection

　　Q4: What are the requirements for the startup sequence of dual outputs?

A: Startup feature description:

　　Synchronous start: Dual outputs start and stop at the same time, timing difference <1ms

　　soft start: Built-in 20ms soft start time to avoid inrush current

　　enable control: Unified control of dual outputs through EN pin

　　3. Troubleshooting Guide for CFKR-6 Watt Dual Output Power Supply

Solutions to key points in troubleshooting diagnosis

　　Single channel no output1. Load short circuit check

2. Overcurrent protection status

3. Output voltage configuration

4. Feedback network check 1. Check the load circuit

2. Restart recovery protection

3. Verify the voltage dividing resistor

4. Check the compensation network

　　Output ripple is too large1. Output capacitor ESR

2. Reasonable layout

3. Measurement method

4. Grounding quality 1. Add low ESR capacitors

2. Optimize wiring paths

3. Standardize measurement methods

4. Improve grounding

　　Voltage accuracy deviation1. Load current

2. Effect of temperature

3. Reference voltage

4. Sampling resistor 1. Confirm the load range

2. Temperature compensation

3. Calibration reference

4. Use precision resistors

　　Startup failed1. Input voltage

2. Enable signal

3. Under voltage protection

4. Input current 1. Verify input range

2. Check EN level

3. Adjust UVLO

4. Limit surge

　　Abnormal temperature1. Ambient temperature

2. Load power

3. Heat dissipation conditions

4. Ventilation status 1. Monitor temperature

2. Reduce load

3. Enhance heat dissipation

4. Improve ventilation

　　4. Application design and optimization suggestions

　　PCB layout specifications：

Each output is equipped with an independent decoupling capacitor, <3mm from the pin

Keep sensitive signal lines away from power paths and transformers

Use a split ground plane and connect it through a single point

　　Thermal management design：

Use thermal pads between the substrate and PCB (thermal resistance <1.5℃/W)

Reserve a copper foil heat dissipation area of ​​≥300mm²

Thermal via diameter 0.3mm, pitch 1.0mm

　　Protection circuit design：

Each output is equipped with an overvoltage protection diode

Set up TVS tube at the front end of the input to protect against surges

It is recommended to add an output current limiting circuit

　　Typical application configuration：

　　Op amp power supply: Use ±15V configuration, pay attention to power supply decoupling

　　data acquisition system: Used with linear voltage regulator to improve power quality

　　Industrial sensors: Pay attention to the reverse connection protection and filtering of the input terminal.

　　Selection considerations：

　　Voltage requirements: Confirm the positive and negative voltage values ​​and accuracy requirements

　　Load characteristics: Analyze the balancing requirements of dual-channel loads

　　environmental conditions: Evaluate operating temperature range and thermal conditions

　　cost considerations: Strike a balance between performance and budget

　　in conclusion

CFKR-6 Watt dual output DC-DC power converter provides an ideal solution for dual power supply systems with its flexible output configuration and reliable performance. Through reasonable circuit design, standardized PCB layout and complete protection measures, its performance advantages can be fully utilized. We provide comprehensive technical support services, and you are welcome to obtain detailed technical information and evaluation samples.