ROHM Semiconductor BD60A00NUX White LED Driver IC
ROHM BD60A00NUX White LED Driver IC is a boost DC/DC converter that can drive white LEDs with constant current. A more stable white LED lighting can be achieved by direct current connection without electric tolerance and high-speed response by current mode. It is also possible to widen the input range by separating IC power supply (2.7V to 5.5V) and coil power supply (2.3V to 20V). This will allow the use of this IC in various kinds of applications. The overvoltage setting can be selected corresponding to the number of LED being used. This device can have a maximum of 11 LEDs.
Features
- Boost DC/DC converter
- Drive LED 11 LEDs (VOUT = 3.6V×11+0.7V = 40.3V )
- Brightness control by outside PWM signal (PWM frequency = 100Hz to 30kHz, 25kHz 1% dimming application)
- Brightness control by DC input
- Soft start function (1ms Typ.)
- Over voltage protection: 42V (Typ.)
- SBD open protection and output short protection
- Over current protection
- LED terminal over voltage protection
- UVLO
Applications
- Smartphones
- Digital Video Cameras
- Digital Single-Lens Reflexes
- Digital Still Cameras
- Digital Photo Frames
- Personal Navigations (PND)
- MID
- Portable Computers
- MP3 Players
- GPS
- Digital Media Players
Block Diagram
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Published: 2015-05-11
| Updated: 2022-03-11