STEVAL-TLL003V1 Power Flash Driver based on STCF02
This evaluation board is dedicated to the design of a flash LED driver using the STCF02 step-up/ down current mode converter, providing the proper recommendations for PCB layout and external components. The device can operate in five modes which are selected using a combination of logic signals (connected to three enable pins). Also implemented is a simple programmable RC circuit used to shut down the device to prevent LED burning during flash mode in the event of microcontroller fault. This evaluation board drives a single flash LED with a forward voltage range of 2.7 to 5 V.
技术特性
- Flash LED driver based on the STCF02 highpower white LED driver
- A High operating frequency: 1.8 MHz
- The device can operate in five modes which are selected using a combination of logic signals (connected to three enable pins) Five selectable operating modes:
- Shutdown mode: quiescent current less than 1μA (typical)
- Shutdown mode with activated negative temperature coefficient (NTC) LED temperature sensing, useful for measuring the temperature before starting both torch and flash modes
- Torch mode: drives the LED up to 250 mA
- Flash mode: drives the LED up to 600 mA
- Middle flash mode: the current is set between the torch and the flash mode levels
| 功能框图
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STEVAL-TLL003V1 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-TLL003V1 |
Active |
|
1000 |
|
|
|
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DATA BRIEF
| 描述 |
版本 |
大小 |
| STEVAL-TLL003V1 : Power flash LED driver evaluation board based on the STCF02 |
1 |
99KB |
APPLICATION NOTES
| 描述 |
版本 |
大小 |
| AN3360: 3.2 W LED power supply based on HVLED805 |
2 |
2873KB |
| AN3410: Power Flash Driver based on STCF02 |
1 |
1958B |
BILL OF MATERIALS
SCHEMATIC PACKS
PCB LAYOUTS
