## SV24-28-350: Engineering Deep Dive into a Constant Current LED Driver
This technical brief provides an in-depth analysis of the SV24-28-350, a dedicated constant current LED driver. We will explore its key operational parameters, system-level benefits, and optimal application scenarios, offering design engineers and procurement specialists the critical data needed for evaluation and system integration.
### Application Scenarios & Value
System-Level Benefits in Commercial and Industrial Lighting
Content last revised on October 16, 2025.
The SV24-28-350 is engineered for applications where precise current regulation and operational reliability are paramount. Its design addresses the core challenge of maintaining consistent light output and extending the lifespan of LED arrays by delivering a stable 350mA current across its specified voltage range. This makes it a strong candidate for multi-LED serial configurations in fixtures such as commercial downlights, architectural lighting, and industrial-grade panel lights.
The primary engineering value lies in its "fit-and-forget" reliability. In a large-scale deployment, such as office building lighting or a manufacturing facility, driver failure leads to significant maintenance overhead. The robust design of the SV24-28-350 ensures stable performance, reducing the total cost of ownership (TCO) over the fixture's lifecycle. Its focused parameter set ensures that it delivers on its primary function without the complexity and cost of over-specified, multi-functional drivers. For systems requiring higher power output or different current ratings, other specialized drivers may be more suitable.
### Key Parameter Overview
Decoding the Specs for Optimal LED Performance
The performance of an LED fixture is directly tied to the quality of its power source. The parameters of the SV24-28-350 are tightly defined to ensure predictable and stable operation. Below is a breakdown of its core specifications, interpreted from an engineering perspective.
| Parameter | Value | Engineering Significance |
|---|---|---|
| **Output Current** | 350 mA (Constant) | This is the most critical specification. A constant current of 350mA is a widely adopted standard for mid-power LEDs, ensuring they are driven at their optimal efficiency and brightness without risk of thermal runaway. It guarantees uniform luminosity across all connected LEDs. |
| **Output Voltage Range** | 24 - 28 VDC | This range defines the operational window for the connected LED load. It is ideal for driving a string of approximately 8 to 9 series-connected 3V LEDs, providing flexibility for designers to achieve their target lumen output. |
| **Input Voltage** | Varies (Model Dependent) | The specific AC or DC input voltage range must be verified from the datasheet to ensure compatibility with the mains supply (e.g., 120VAC, 230VAC, or a universal range). Proper input voltage matching is crucial for both safety and performance. |
| **Power Factor (PF)** | >0.9 (Typical) | A high power factor is crucial for energy efficiency and regulatory compliance (e.g., ENERGY STAR). It indicates that the driver uses the supplied AC power effectively, minimizing reactive power and reducing the load on the electrical infrastructure. Think of it as the efficiency of the power grid itself—a high PF reduces wasted energy in the wiring of the building. |
| **Total Harmonic Distortion (THD)**|
