The new LED backlight driver from Allegro MicroSystems employs the patented pre-emptive boost (PEB) control to eliminate the audible noise. The A8060x family of LED drivers uses PEB control to substantially reduce V out ripple and thus eliminate the common problem of audible noise from ceramic output capacitors during PWM dimming.
That allows the lighting systems to achieve an LED brightness contrast ratio of 15,000:1 using PWM-only dimming at 200 Hz. Moreover, a higher contrast ratio of 150,000:1 is possible with a combination of PWM and analog dimming. Here, it’s worth noting that A8060x drivers boost PMW dimming ratios without analog adjustment.
The ALT80600 and A80603 LED drivers combine a switching converter with a MOSFET and four current sinks. They feature four LED strings, each capable of handling up to 120 mA with the total LED current of up to 480 mA. Next, the A80601 and A80602 devices drive an external boost FET for higher output power. And they provide a total LED current of up to 840 mA via four or six strings, respectively.
We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. By clicking “Accept All”, you consent to the use of ALL the cookies. However, you may visit "Cookie Settings" to provide a controlled consent.
This website uses cookies to improve your experience while you navigate through the website. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may affect your browsing experience.
Necessary cookies are absolutely essential for the website to function properly. These cookies ensure basic functionalities and security features of the website, anonymously.
Cookie
Duration
Description
cookielawinfo-checkbox-analytics
11 months
This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Analytics".
cookielawinfo-checkbox-functional
11 months
The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional".
cookielawinfo-checkbox-necessary
11 months
This cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary".
cookielawinfo-checkbox-others
11 months
This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other.
cookielawinfo-checkbox-performance
11 months
This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Performance".
viewed_cookie_policy
11 months
The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. It does not store any personal data.
Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features.
Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors.
Analytical cookies are used to understand how visitors interact with the website. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc.
Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. These cookies track visitors across websites and collect information to provide customized ads.
You must verify your email address before signing in. Check your email for your verification email, or enter your email address in the form below to resend the email.
Please confirm the information below before signing in.
{* #socialRegistrationForm *}
{* firstName *}
{* lastName *}
{* displayName *}
{* emailAddress *}
By clicking "Sign In", you confirm that you accept our terms of service and have read and understand privacy policy.
{* /socialRegistrationForm *}
Almost Done
Please confirm the information below before signing in. Already have an account? Sign In.