IRS2983SPBF

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IRS2983SPBF has become increasingly popular in the PMIC – LED Drivers market. It is designed for driving multiple high brightness LEDs. Its wide input voltage range, high efficiency, and low external component count, together with its wide range of functions, make it a great fit in many LED applications. This article will discuss the application field and working principle of IRS2983SPBF.

Application Field of IRS2983SPBF

IRS2983SPBF is a switch-mode PMIC – LED Driver. It is specifically designed to drive multiple high brightness LEDs. It has wide input voltage range and can operate from 6 V to 90 V, making it highly suitable for industrial, automotive, and other mid- to high-voltage applications. It has high efficiency and a low external component count which make it ideal for low cost, space-constrained applications.

The IRS2983SPBF is suitable for a variety of applications where multiple, high brightness LEDs are required. These applications include automotive, industrial, and home lighting applications. Additionally, it can be used in medical applications and indoor and outdoor lighting, such as emergency lighting, sensor and indicator lighting, decorative lighting, and general purpose lighting.

Working Principle of IRS2983SPBF

The working principle of the IRS2983SPBF is based on a synchronous buck converter topology. It is a single-ended, step-down buck converter that utilizes a high-side and low-side power MOSFET. The IRS2983SPBF is a current-mode Buck-Boost DC/DC converter with an internal oscillator, which ensures stable operation and allows a wide input voltage and current range. The device has an internal low-side PWM switch, which provides the capability to regulate current in the output LEDs.

The converter uses two dedicated pins to set the maximum current that can be delivered to the LED string. One pin is used for the function of current-limiting and the other for overvoltage protection.

The built-in circuit protection features guard against open LED short-circuit, shorted LED detective and LED open load conditions. The LED overload current can be adjusted by changing the circulating current of the internal oscillator, which can provide the functionality of over-voltage protection.

The main benefits of IRS2983SPBF include high efficiency, low component count, low stand-by current, wide input voltage range, and wide load range. It is capable of driving up to 32 LEDs in series and is able to operate at a wide range of output currents.

Conclusion

IRS2983SPBF is a high-performance PMIC - LED Driver that has a wide array of applications. It has a wide input voltage range that allows it to be used in both high and low voltage applications. It is capable of delivering high output current and utilizes an internal oscillator to ensure stable operation. In addition, it features built-in protection features to protect against open LED short-circuit and LED open load conditions. With its wide range of features, the IRS2983SPBF is an ideal component for applications that require multiple, high brightness LEDs.

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