STR-H5601
High-power boost LED driver supporting up to 60V output for long LED strings in commercial and industrial lighting
Product Overview
Description
The STR-H5601 is a high-power boost LED driver designed for commercial and industrial lighting applications.
It supports long LED strings with output voltage up to 60V and output current up to 2A.
The driver features comprehensive protection and multiple dimming options for professional lighting systems.
Product Series
STR
Primary Application
Commercial lighting
Key Features
- High output voltage up to 60V
- Up to 100W output power
- Multiple dimming methods
- ±2% current accuracy
- Comprehensive protection features
- Thermal management support
- Fault status output
- Compact ESOP-10 package
Specifications
| Topology | Boost (Step-Up) |
|---|---|
| Input Voltage | 9V to 36V |
| LED String Voltage | Up to 60V |
| Max Output Current | 2A |
| Max Output Power | 100W |
| Dimming | Analog, PWM, and Digital |
| Efficiency | Up to 95% |
| Package | ESOP-10 |
| Operating Temperature | -40°C to +85°C |
Applications
Commercial lighting
Electronic system design
Street lighting
Electronic system design
High-bay lighting
Electronic system design
Tunnel lighting
Electronic system design
Industrial lighting
Industrial automation and control
FAE Expert Insights
"The STR-H5601 is designed for demanding commercial and industrial lighting applications. The 60V output capability allows driving long LED strings common in street lights and high-bay fixtures. The 100W power handling is impressive for the compact package. I particularly like the comprehensive protection suite - it's essential for outdoor and industrial applications where reliability is critical. The multiple dimming options provide flexibility for smart lighting systems. For professional lighting applications, this driver delivers the performance and reliability needed."
100W capability with 60V output for commercial lighting
— David Chen, BeiLuo
Frequently Asked Questions
How many LEDs can STR-H5601 drive in series?
STR-H5601 supports LED string voltage up to 60V. For typical white LEDs with 3V forward voltage, this allows up to 18-20 LEDs in series. For higher forward voltage LEDs (some high-power LEDs have 6-12V Vf), fewer LEDs can be driven. The high output voltage capability makes this driver ideal for applications requiring long LED strings such as street lights and linear high-bay fixtures. Calculate based on your specific LED forward voltage.
Maximum 60V LED string. Calculate LED count based on forward voltage.
What input voltage is required for boost operation?
For boost operation, input voltage must be lower than the LED string voltage. The STR-H5601 input range is 9V-36V. For example, to drive a 48V LED string, input voltage must be below 48V (typically 24V or 36V). The boost ratio (Vout/Vin) should typically not exceed 3-4 for stable operation and good efficiency. For very high boost ratios, consider alternative topologies or input voltage adjustments.
Input must be lower than output. Limit boost ratio to 3-4 for best performance.
How do I manage thermal design for high-power operation?
Thermal design is critical for high-power LED drivers. Calculate power dissipation: Pd = Pin - Pout = (Vout × Iout / Efficiency) - (Vout × Iout). For 100W output at 95% efficiency, dissipation is about 5W. Provide adequate copper area on PCB (typically 50-100mm² for 5W), use thermal vias to inner layers, and consider external heat sinking if needed. Monitor case temperature during testing and ensure it stays within ratings. The ESOP-10 package has an exposed pad for improved heat dissipation.
Calculate dissipation and provide adequate copper area. Use exposed pad for heat sinking.
What is the difference between boost and buck-boost LED drivers?
Boost drivers (like STR-H5601) can only step up voltage - output must be higher than input. They're used when LED string voltage exceeds the supply voltage. Buck-boost drivers can both step up and step down, making them suitable when input voltage may be above or below LED voltage (like battery-powered applications). Boost drivers are generally more efficient for pure step-up applications and can achieve higher output voltages. Choose based on your input/output voltage relationship.
Use boost for step-up only. Use buck-boost if input can be above or below LED voltage.
Can STR-H5601 be used for multi-string LED applications?
STR-H5601 is designed for single LED string operation. For multi-string applications requiring independent current control for each string, multiple driver ICs are recommended. This ensures proper current regulation in each string despite LED forward voltage variations. If the strings have identical LED configurations and can share the same current, a single driver with appropriate current rating can be used, but current balancing between strings is not guaranteed.
Use multiple drivers for independent string control. Single driver only if strings can share current.
What safety certifications are needed for LED drivers?
LED drivers typically require safety certifications including UL8750 (USA) for LED equipment, CE marking (Europe), and CCC (China). Additional certifications may be required depending on application - for example, street lighting may need specific outdoor ratings. The driver design should meet isolation requirements, creepage/clearance distances, and temperature limits. Starrystone Tech designs incorporate safety considerations, but final product certification is the manufacturer's responsibility.
Plan for UL8750 and CE certifications. Engage with testing labs early in design.