LTC3783EDHD#PBF Integrated Circuits (ICs)

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The LTC3783EDHD#PBF is a high-frequency, current-mode, PWM controller that is specifically designed for LED drivers. The PWM control regulates the brightness of LEDs and offers precise current control of the LED, without any need for an additional current sense resistor. It is especially suitable for LED applications due to its low power consumption and wide input voltage range.

Features

• Wide input voltage range: 3V to 20V
• Wide switching range: 0.8V to 18V
• Programmable PWM frequency up to 1MHz for optimized efficiency
• Programmable peak current level
• Programmable LED short-circuit protection
• No external current sense resistor required
• Low quiescent current: 3mA
• Thermal shutdown protection

Application Field

The LTC3783EDHD#PBF is ideally suited for a wide variety of LED driving applications, such as LED lighting, automotive lighting, and other light display applications. It is especially suitable for high-brightness LED applications due to its wide input voltage range, wide switching range, and low quiescent current.

Working Principle

The LTC3783EDHD#PBF uses a current-mode, PWM control to regulate the brightness of LEDs. It utilizes a low-power, high-frequency switching network to efficiently supply power to the LEDs. A programmable peak current level is used to control the LED current. The PWM frequency can be adjusted to optimize efficiency and minimize losses from the switching components. The LTC3783EDHD#PBF also features LED short-circuit and thermal protection.

Conclusion

The LTC3783EDHD#PBF is a high-frequency, current-mode, PWM controller that is specifically designed for LED drivers. It offers a wide input voltage range, wide switching range, programmable peak current level and no external current sense resistor. It is ideal for LED lighting, automotive lighting, and other light display applications due to its low power consumption and programmable protection functions.

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