- Illumination and Lightning Products
- Power Products
- Audio-rerated Products
- Mobile Phones/Portable Equipment Products
- Products for LCDs
- Power Management Products
- PC/Peripheral Device Products
ROHM's inverter control ICs utilize a high precision frequency design for greater efficiency. A wide range (0% - 100%) burst light adjustment function and low noise analog light adjustment mode make mixed light adjustment possible.
In addition, the output can be completely turned OFF, contributing to greater energy savings and longer life.
■Long life and a broad light adjustment range
Utilizing a burst-type light adjustment method (intermittent oscillation) broadens the range (0% - 100%), while a system that shuts down the output completely during power OFF was integrated to prolong lamp life.
■Multi-lamp IC synchronization operation function eliminates inter-lamp interference
Synchronizing operations is as simple as connecting resistors between the ICs. In addition, inverter substrate design for full output in the same phase is simplified due to elimination of electric potential differences between transformer outputs.
■High precision frequency design improves efficiency and safety
Conventional systems require a frequency precision of ±5% to maximize the capability of the transformer and realize an efficiency of 90% or greater. ROHM products feature a tolerance of ±2.5%, enabling smaller transformers to be used.
BU90A□□ / B□□-□□ series
The industry's most advanced (0.13µm) process was used to achieve an ultra-low internal drive voltage of 1.5V - ideal for a wide range of devices, from notebook computers to conventional monitors.
BD9201EFS
ROHM' s high voltage resistance constant current drivers feature high current handling capability, highly efficient operation (85%+), and allow individual control of the brightness at each of the 8 built-in channels. The result is optimized contrast and visibility with reduced power consumption
A newly developed LCD drive voltage generator circuit is built in, drastically reducing power consumption. In addition, the specialized
design eliminates the need for external components, making display possible via 3-line connection to a microcontroller.
