ROHM’s New 4ch/6ch LED Drivers for LCD Backlights: Contribution to Lower Power Consumption in Medium to Large Automotive Displays

ROHM’s New 4ch/6ch LED Drivers for LCD Backlights: Contribution to Lower Power Consumption in Medium to Large Automotive Displays Built-in DC and PWM dimming support a wide range of designrequirements. ROHM developed the 4ch/6ch LED driver ICs, BD83A04EFV-M, BD83A14EFV-M, BD82A26MUF-Mdesigned for medium to large size automotive displays in car infotainment and instrument clusters. In recent years, the continuing evolution of ADAS (Advanced Driver Assistance Systems) and enhancedcar infotainment functionality have led to the use of larger displays. Consequently, LED drivers for LCD backlights in automotive displays are required to provide high efficiency drive that improves rated output current while reducing power consumption. On top,as flickering of automotive displays can lead to poor visibility and unsafe conditions, LED drivers mustbe capable to avoid this symptom. Conventional LED drivers that consumerelatively large amounts of power and are susceptible to flickering during PWM dimming.In contrast,ROHM has developedLED drivers for LCD backlights that combine proprietary low power technology with seamless PWM dimming. This eliminatesflickering when changing display brightnessfrom low to high. These new products leverage proprietary low power consumption technology toreduce losses in LED driver current control circuits. The result is 20% lower overall IC power con...