STEVAL-ILL031V1 Digital constant current controller for LED driving based on STM8S208x
The purpose of the STEVAL-ILL031V1 demonstration board is to present a new digital approach to performing real average current control on an LED streetlighting platform.
This LED streetlight platform is developed on a DC-DC “inverse buck” converter, taking advantage of power switch control and conditioning signal circuitry for current sensing.
Benefits of this design include low energy consumption, low maintenance, and reduced size and weight. The solution is customized for streetlighting applications, but can be extended to many other segments.
技术特性
- DC input voltage: 48 V
- Buck stage adapts output voltage to drive LEDs with selected current
- Four DC-DC buck converters allow driving of 4 LED strings, managing up to 120 W
- Employs 3 W LEDs to obtain 30 W-per-string (10 LEDs in series in each string)
- Low voltage-sensing circuitry
- Logic level MOSFETs driven by the microcontroller without gate driver (ground referred)
- High efficiency (up to 98%)
- RoHS compliant
| 功能框图
 |
STEVAL-ILL031V1 订购信息
| 订购型号 |
产品状态 |
美金价格 |
数量 |
封装 |
包装形式 |
温度范围 |
材料声明 |
| STEVAL-ILL031V1 |
Active |
|
1000 |
|
|
|
|
DATA BRIEF
| 描述 |
版本 |
大小 |
| STEVAL-ILL031V1 : Digital constant-current controller for LED driving based on the STM8S208x |
2 |
140KB |
APPLICATION NOTES
| 描述 |
版本 |
大小 |
| AN3980: STM32 firmware library for dSPIN L6470 |
1 |
774KB |
| AN3991: How to drive multiple stepper motors with the L6470 motor driver |
1 |
1760B |
BILL OF MATERIALS
SCHEMATIC PACKS
PCB LAYOUTS
