LED 플래쉬/토치 드라이버 모듈 -KTD2691
(LED FLASH 3 CLICK)
개요
- 본 제품은 LED 플래쉬/토치 드라이버 모듈 -KTD2691 입니다.
- 싱글 플래쉬 LED 드라이버 KTD2691를 탑재하고 있습니다.
- LED 출력 전류를 128단계로 조절할 수 있습니다.
특징
- LED Flash 3 Click is a compact add-on board representing a powerful flash/torch solution. This board features the KTD2691, an inductor-less, single-flash LED driver from Kinetic Technologies. It includes one current source that can drive up to 1.5A of LED flash current or up to 376mA of torch current. No matter the mode used, it allows you to control the output current in 128 levels. This Click board™ makes the perfect solution for developing flash or torch lights for various hand-held devices, such as small camera lights, a cell phone flashlight, a signal light, a bicycle light, a car taillight, and more.
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HOW DOES IT WORK?
LED Flash 3 Click is based on the KTD2691, an inductorless single-flash LED driver from Kinetic Technologies. While working in flash mode, you can program the LED current over the software, but you can also use a hardware strobe pin to control this mode. The software can only program the torch mode and on/off ramp. There are various additional functionalities that this LED driver provides. This includes low voltage protection (LVP), a flash time-out function that sets the maximum time of one flash event, under voltage lock-out (UVLO), thermal shutdown, LED short protection, LED open protection, and more.
The LED Flash 3 Click is equipped with the XPCWHT-L1-R250-00A01, an Xlamp XP-C LED. The LED combines proven lighting-class performance and reliability. It features a white LED with a wide viewing angle and low thermal resistance. In addition, you can add an external similar LED over the available connector. The LED selection can be made over the LED SEL jumper. You can also select the LED driver voltage supply between the 3.3V and 5V over the VCC SEL jumper.
LED Flash 3 Click uses a standard 2-wire I2C interface to communicate with the host MCU supporting standard and a fast mode with up to 400kHz clock frequency. The hardware strobe pin is available over the STB pin. If using the STROBE pin to control the flash mode, there is an option to select when the flash mode is deactivated.
This Click board™ can operate with either 3.3V or 5V logic voltage levels selected via the VIO SEL jumper. This way, both 3.3V and 5V capable MCUs can use the communication lines properly. Also, this Click board™ comes equipped with a library containing easy-to-use functions and an example code that can be used as a reference for further development.
SPECIFICATIONS
Type LED Segment Applications Can be used for the development of flash or torch lights for various hand-held devices, such as small camera lights, a cell phone flashlight, or a signal light, a bicycle light, a car taillight, and more On-board modules KTD2691 - inductorless single-flash LED driver from Kinetic Technologies Key Features I2C interface programming and hardware strobe control, single-channel programmable current source, flash and torch modes, input low voltage protection, flash time-out protection, LED open/short protection, external LED connection, and more Interface I2C ClickID Yes Compatibility mikroBUS™ Click board size S (28.6 x 25.4 mm) Input Voltage 3.3V or 5V
문서
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