Product overview
Description
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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All features
- 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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All resources
| Resource title | Version | Latest update |
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Board Manufacturing Specifications (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| ZIP | 1.0 | 04 Dec 2018 | 04 Dec 2018 |
Bill of Materials (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 1.0 | 04 Dec 2018 | 04 Dec 2018 |
Schematic Pack (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 1.0 | 04 Dec 2018 | 04 Dec 2018 |
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | WEEE Compliant | Material Declaration** |
|---|---|---|---|---|---|---|
| STEVAL-LLL004V1 | Active | CARD | Industrial | Ecopack2 | Yes | |
STEVAL-LLL004V1
Package:
CARDMaterial Declaration**:
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
Sample & Buy
| Part Number | Marketing Status | Budgetary Price (US$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Supplier | Core Product | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| STEVAL-LLL004V1 | | | distributors No availability of distributors reported, please contact our sales office |
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STEVAL-LLL004V1 Active
(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors