ROHM Launches Ultra-small Driver IC for Socket-Type LEDs
Published2020.04.01 08:15Always maintain a brightness of 30% or more
It can be mounted on a 10mm × 10mm board.
ROHM announced on March 31 that it has developed the 'BD18336NUF-M', an ultra-compact, high-output linear LED driver IC capable of safe lighting when vehicle battery voltage drops, using a single chip.
BD18336NUF-M is suitable for driving socket-type LED lamps such as automotive daytime running lamps (DRL), position lamps, and rear lamps.
By changing the LED current path through the voltage drop current bypass function, even when the battery voltage drops from 13V to 9V, the light can be prevented from turning off and the brightness can always be maintained at 30% or more.
High output of 600mA is implemented in an ultra-small 3.0mm × 3.0mm package, and the mounting area including external circuitry is reduced by about 30% compared to existing products, making it possible to mount on a 10mm × 10mm board required for ultra-small socket-type LED lamps.
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Mounting area reduction effect (Image=ROHM)
In addition, it is equipped with a function to suppress the heat generated by the LED so that it can handle high-brightness white LEDs that are prone to high temperatures.
Sample shipments of the BD18336NUF-M began last December, and mass production is scheduled to begin this coming July with a production capacity of 400,000 units per month.
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