LED Backlight Drivers

Eliminate PWM audible noise

  • LED Backlight Drivers
    LED Backlight Drivers

The A8060x family from Allegro MicroSystems is a series engineered with a patented Pre-Emptive Boost (PEB) control. It eliminates typically audible noise from ceramic output capacitors during PWM dimming, reduces considerably Vout ripple, and requires less output capacitance overall. These drivers can achieve a LED brightness contrast ratio of 15,000:1 when using PWM-only dimming at 200 Hz, but also a higher ratio of 150,000:1 when using a combination of PWM and analogue dimming. 


Wide input range from single power supply from 4.5 to 40 V


The ALT80600 and A80603 combine a switching converter with integrated MOSFET and four current sinks, and the A80601 and A80602 drive an external boost FET for higher output power. These devices can be configured in a boost or single-ended primary-inductor converter (SEPIC) topology. They cover a broad range of automotive applications such as Audio-Video systems, instrument clusters and heads-up display (HUD).

Graduated in political sciences and international relations in Paris, Anis joined the team in early 2019. Editor for IEN Europe and the new digital magazine AI IEN, he is a new tech enthusiast. Also passionate about sports, music, cultures and languages. 

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