产品概述
描述
The STEVAL-LLL002V1 evaluation kit consists of the STEVAL-LLL002M1 main board and the STEVAL-LLL002D1 USB-UART bridge.
It has been designed to test and evaluate ALED1262ZT performance.
The STEVAL-LLL002M1 is a LED array driver system evaluation board with local dimming and diagnostics for automotive applications. It is based on the ALED1262ZT 12-channel LED driver controlled through the STM8AF6266 microcontroller I²C interface.
A 48 red LED matrix is driven by four ALED1262ZT LED drivers.
The on-board A7986A DC-DC converter, accepting standard adapter input voltages with reverse polarity protection, provides the voltages and power for the board operation.
The STEVAL-LLL002V1 evaluation kit jumpers simulate LED open circuit faults and the 4-pin SWIM connector is used to debug and develop the STM8AF6266 microcontroller firmware.
The evaluation kit can operate in bus driven mode (BDM), standalone mode (SAM) and GUI mode.
In the bus driven mode, the board is controlled via on-board push buttons and potentiometers. Commands to the ALED1262ZT driver are sent by STM8A microcontroller over I²C bus.
In the standalone mode, the STEVAL-LLL002V1 evaluation kit is not controlled by the MCU and you can select two possible output configurations using OTP ½ SPDT switch (SW2).
In the GUI mode, the board is connected to a PC via USB-UART bridge and you can observe and control various features of the driver through the graphical user interface.
-
所有功能
- Various pre-configured and programmable patterns on the 12 x 4 red LED matrix
- 7 bit PWM local dimming control with non-linear steps to adjust brightness to human eye perception
- Speed control
- Push buttons to switch modes
- Safety standalone mode function and OTP pre-programmed mode for custom configuration
- Fast I²C interface with selectable extended Hamming encoding
- Open error simulation and real-time detection
- 12 to 24 V DC power supply with reverse polarity protection
- GUI for advanced driver configuration
- USB-UART bridge (STEVAL-LLL002D1) for PC connection
- RoHS and WEEE compliant
- Various pre-configured and programmable patterns on the 12 x 4 red LED matrix
您可能还会喜欢...
全部资源
| Resource title | 版本 | Latest update |
|---|
Board Manufacturing Specifications (1)
| Resource title | 版本 | Latest update | ||
|---|---|---|---|---|
| ZIP | 1.0 | 18 Jun 2019 | 18 Jun 2019 |
物料清单 (1)
| Resource title | 版本 | Latest update | ||
|---|---|---|---|---|
| 1.0 | 18 Jun 2019 | 18 Jun 2019 |
Schematic Pack (1)
| Resource title | 版本 | Latest update | ||
|---|---|---|---|---|
| 1.0 | 18 Jun 2019 | 18 Jun 2019 |
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-LLL002V1 | 批量生产 | CARD | 工业 | Ecopack2 | Yes | |
STEVAL-LLL002V1
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-LLL002V1 | distributors 无法联系到经销商，请联系我们的销售办事处 | ALED1262ZT, STM8AF6266 | 批量生产 | ST | 3A991.a.2 | NEC | ITALY | |