Allicdata Part #: | IRS2540C-ND |
Manufacturer Part#: |
IRS2540C |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Infineon Technologies |
Short Description: | IC REG LED BUCK 200V DIE |
More Detail: | LED Driver IC Output Dimming |
DataSheet: | IRS2540C Datasheet/PDF |
Quantity: | 1000 |
1 +: | 0.00000 |
Specifications
Series: | * |
Part Status: | Obsolete |
Description
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IRS2540C Application Field and Working Principle
The IRS2540C is an integrated circuit (IC) specifically designed for PMIC (power management integrated circuit) applications. With the industry leading low-voltage protection and performance, the IRS2540C is the right choice for LED drivers.The IRS2540C is available in many different packages, including SOT-223, WDFN, and VQFN footprints to meet different system size requirements and cost considerations over time. Its small size and low-voltage operation make it suitable for low-power and highly efficient LED driver designs.The IRS2540C operates from an input voltage of up to 12V, and the switching frequency can be changed from 500kHz to 3Mhz depending on the application requirements. The constant current LED driver features true open LED detection for LED failure protection. The driver uses a low-side coulomb-count or hysteretic approach to maintain the current accuracy during a wide input voltage range from 4V to 12V. The IRS2540C has a 3-pin shut-down pin for enabled or disabled control operation for system power save. The IC also features thermal overload protection and under-voltage lockout protection to protect against unexpected current surges or over-voltage situations.The IRS2540C is widely used in LED driver applications in automotive, industrial and consumer electronics. Its low-voltage and high-efficiency design make it ideal for LED applications in the form of constant current. It has a wide range of lighting control functions such as dimming and blinking, making it suitable for decorative applications such as signs and displays.The working principle of the IRS2540C is based on the charge-control total shift register. It consists of four independent phase channels, each operating at a different phase shift. The input voltage is split into four separate voltage signals which drives four parallel switches. Each of the switches supplies current to the LED load, and the current is controlled by the current sensing comparator circuit. This allows the IRS2540C to accurately adjust the current through the LED load from 4mA to 36mA. The output voltage is maintained by a voltage loop regulation.In summary, the IRS2540C is an ideal choice for LED drivers. It features low operating voltage, low-voltage protection, high accuracy current control, and adjustable switching frequency. Its small size and high performance make it a perfect fit for a variety of applications. This makes it an ideal tool for automotive, industrial, and consumer applications.The specific data is subject to PDF, and the above content is for reference
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