产品概述
描述
The STEVAL-LLL004V1 digitally controlled constant current LED driver reference design features a PFC stage and two DC-DC converters designed to work in transition mode (TM) for optimal efficiency.
The LED driver can deliver 75 W output power and implements both analog and digital techniques for flicker free dimming down to 0.5% of the maximum brightness level. The board features high efficiency, a very high power factor above 0.97, and a low THD across wide input voltage and load conditions, thanks to the high performance ST power products and the advanced algorithms running on the 32-bit STM32F0 microcontroller.
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所有功能
- Wide input voltage range 85 – 265 VAC
- Transition Mode PFC
- Two constant current outputs working in transition mode based on different topologies:
- Buck topology
- Inverse buck topology
- Output current: 500 mA ±2.5%
- Number of LEDs connected at output: 16 – 24 white LEDs (3.3 V each)
- PFC > 0.97 and THD < 20% at full load with input voltage 85-265 VAC
- Peak Efficiency at maximum load ≅ 90%
- Comprehensive safety protections:
- Open/no-load circuit protection
- Short-/overload circuit protection
- Soft start implementation
- LED dimming range: 0.5% to 100%
- Analog dimming
- Digital dimming
- Dimming control options:
- Push button
- 0-10 V input
- Meets EN55022 Class B
- WEEE and RoHS compliant
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全部资源
| 资源标题 | 版本 | Latest update |
|---|
Board Manufacturing Specifications (1)
| 资源标题 | 版本 | Latest update | ||
|---|---|---|---|---|
| ZIP | 1.0 | 04 Dec 2018 | 04 Dec 2018 |
物料清单 (1)
| 资源标题 | 版本 | Latest update | ||
|---|---|---|---|---|
| 1.0 | 04 Dec 2018 | 04 Dec 2018 |
Schematic Pack (1)
| 资源标题 | 版本 | Latest update | ||
|---|---|---|---|---|
| 1.0 | 04 Dec 2018 | 04 Dec 2018 |
质量与可靠性
| 产品型号 | Marketing Status | 封装 | 等级规格 | 符合RoHS级别 | WEEE Compliant | 材料声明** |
|---|---|---|---|---|---|---|
| STEVAL-LLL004V1 | 批量生产 | CARD | 工业 | Ecopack2 | Yes | |
STEVAL-LLL004V1
Package:
CARDMaterial Declaration**:
(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此，它们可能不是100%适用于特定的设备。有关特定设备的信息，请联系 销售支持。
样片和购买
| 产品型号 | Order from distributors | 从ST订购 | 核心产品 | 供货状态 | 供应商 | ECCN (US) | ECCN (EU) | Country of Origin | Budgetary Price (US$)*/Qty | |
|---|---|---|---|---|---|---|---|---|---|---|
| STEVAL-LLL004V1 | distributors 无法联系到经销商，请联系我们的销售办事处 | STD11N60M2-EP, VIPER012LS | 批量生产 | ST | 3A991.a.2 | NEC | ITALY | |