Rohm Introduces Compact White Chip LEDs
High luminous intensity and tiny 1608-size LEDs suit IoT devices, drones, and other battery-equipped applications
Rohm Semiconductor has introduced an ultra-compact, high luminous intensity white chip LEDs. Called CSL1104WB, the products are optimised for applications requiring high brightness white light emission, such as IoT devices, drones, and other battery-equipped applications.
In recent years, high luminous intensity (2.0cd) white LEDs have been increasingly adopted to improve visibility in a range of applications in the consumer electronics and automotive sectors. At the same time, the emergence of applications that mount multiple LEDs in a small space - such as IoT devices and drones - require high density mounting. This makes it difficult to achieve high brightness in a compact footprint.
The CSL1104WB series achieves a high luminous intensity of 2.0cd in an ultra-compact 1608 size (1.6mm x 0.8mm = 1.28mm2), which was previously difficult to achieve. The result is the same luminosity as the current mainstream 3528 size PLCC package (3.5mm x 2.8mm = 9.8mm2), but in an 87 percent smaller form factor.
Moreover, color variation is significantly improved, simplifying the color adjustment process by ensuring accurate white color chromaticity. This not only contributes to greater application space savings, but also improves design flexibility along with visibility through high density mounting of high luminosity LEDs, considerably reducing development load.
In addition, qualification under the automotive reliability standard AEC-Q102 specifically developed for optical devices is planned, enabling a smooth application inside industrial equipment and automotive applications that are exposed to harsh environments.
Rohm is committed to further expanding its lineup of 1608 size white chip LEDs from low to high brightness - aiming to improve design flexibility while reducing development load (i.e., decreasing application height, simplifying product design).