ROHM 50years in Electronics

ROHM offers several series of H-bridge drivers to meet various applications and accommodate various power supply voltages, output currents, and numbers of channels. They can also function as PWM drives through the use of the innovative VREF-PWM duty conversion circuit, even for conventional “variable VREF” rotation control. This product offers low power consumption, ease of use, and control via direct PWM input.

With high output efficiency and industry-leading low heat generation, the BD54□□ amplifier produces powerful sound. Its space-saving design and energy-saving performance make it ideal for equipment lacking adequate space for heat radiation.

To ensure both the sensitivity and reduced power consumption of the Hall device, the BU520□□ Series incorporates an intermittent operation mode that performs sensing operation once in a constant cycle. This results in average current consumption of 5 μA (typ.).

These LED drivers feature a dual control function that controls backlight intensity based on ambient brightness and image brightness. These drivers simplify the construction of a control system that ensures both high visibility of images and energy-efficient backlighting.

Because the LED peak waveform approaches the waveform of the phototransistor at peak sensitivity, the RPI-□□□E Series ensures stable characteristics at only one-third the power consumption of conventional products.

These sensor ICs provide excellent spectral sensitivity characteristics similar to the light sensitivity of humans. This enables a wide rage of illuminance measurement. These sensor ICs provide ultra-high-precision light control functions and support reactive power reduction.

With the industry’s smallest mounting area (9 mm2), this ultra-small package remarkably improves the flexibility of board design.* Thanks to its original lens design, the RPMS2□□1-H19 Series significantly reduces erroneous operation in outdoor use. This low power consumption module prolongs battery life.

*July 2008 ROHM study

Heat radiation is significantly increased thanks to the exposed rear frame and copper frame that provides high thermal conductivity. As a result, the PSML2 provides the industry’s highest light intensity at 7 cd in a medium current range (at 100 mA).*

*July 2008 ROHM study