IS31BL3556-ZLS4-TR

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The IS31BL3556-ZLS4-TR is an integrated circuit from ISSI (Integrated Silicon Solution Inc.) designed for powering and controlling the operation of LEDs. It can be used to drive multiple LEDs for various applications, including lighting and display applications. It is categorized as a PMIC (power management IC) LED driver and is designed for high speed and accuracy, making it an ideal solution for any LED system.

Within IS31BL3556-ZLS4-TR is a DC/DC buck converter and a BLED (Bridge LED) driver. This combo allows the user to power their LED system while limiting the current by using the buck converter. The BLED driver allows the user to use different LED configurations without re-engineering the PCB (printed circuit board). Although the IC is meant to be used to drive LEDs, it can also be used in any system requiring a buck-boost converter and BLED driver.

ISSI’s IS31BL3556-ZLS4-TR utilizes an operating voltage input of 36V, operating at 0.33A. Moreover, the IC has a maximum switching frequency of 600 kHz, which allows for fast power supply response times. The IC can operate from -35 to +85°C, making it great for a variety of applications. In addition, it has a built-in protection circuit, which can protect a LED system from over-temperature, over-current and short-circuit conditions.

The IS31BL3556-ZLS4-TR is designed for various applications and is especially suitable for driving high-speed, high-power LEDs. It can be used in display applications such as LCDs, AMOLEDs, and e-paper displays. It can also be used in automotive lighting applications or general lighting fixtures, such as street lamps, flood lights and spot lights.

The IS31BL3556-ZLS4-TR has an integrated BLED driver, allowing the user to control different types of LED configurations without having to modify the board. The built-in DC/DC buck converter limits the current and monitors it to maintain the desired level of brightness. Meanwhile, the 600 kHz switching frequency ensures rapid response when the input voltage changes, allowing the user to use the same board configurations for a wide variety of applications.

ISSI designed the IS31BL3556-ZLS4-TR with safety in mind. It has a built-in thermal shutdown circuit which shuts off the system in the event of an over-temperature condition. It also has an over-current and short-circuit protection circuit which can protect the LED system from unscheduled power outages.

In conclusion, the IS31BL3556-ZLS4-TR from ISSI is a PMIC (power management IC) LED driver designed for various applications. It has a buck converter for current control and a BLED (Bridge LED) driver for different LED configurations without re-engineering the board. Additionally, it has a thermal protection circuit which provides effective protection against over-temperature, over-current and short-circuit conditions. The 600 kHz switching frequency ensures rapid response when the input voltage changes. All of these features make the IS31BL3556-ZLS4-TR an ideal solution for any LED system.

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