LT3596EUHG#PBF

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The LT3596EUHG#PBF is a high-performance LED driver for powering High-Voltage LEDs from a wide input range. This device contorls one high-current LED string with a high- and low-side linear current regulator. It comes in an 8-pin SO package with a 700 mA peak gate source current. On-board thermal shutdown and overtemperature protection keeps LEDs cool and safe, while the boost converter design provides high efficiency, low ripple, and low noise.

This driver can be used in general lighting, backlighting, and RGB light. It is suitable for both indoor and outdoor lighting applications. It is designed for buck/boost operation and designed for operation from a wide-voltage input ranging from 4.5V to 30V. It supports LED open or LEDshort fault detection for systems with combined LED strings.

The LT3596EUHG#PBF is an ideal choice for LED drive applications in harsh environments, as the device has an operating temperature range from -40°C to +125°C, and it is specially designed to operate in thermal-critical applications. It has full galvanic isolation, and it is tested to ensure a tight over-voltage protection. It also has low EMI levels and no down-stream limiting resistors are required.

The working principle of LT3596EUHG#PBF is quite simple. It consists of a power switch and a current source that control the LED current. The power switch controls the voltage applied to the LED string and adjusts it to the desired current. The current source senses the LED current and adjusts it to the desired current level. A feedback loop ensures that the desired current is maintained even as the LED voltage or temperature may vary.

The LT3596EUHG#PBF also features adjustable current control from 0% to 100%, allowing the user to dim the LEDs. The device also has adjustable PWM dimming frequency from 200Hz to 20kHz, and it offers adjustable dimming response time from 1µs to 30µs. Additionally, the device features an adjustable soft start for EMI reduction and a blank time for current fold-back. It also comes with selectable peak current limiting and adjustable soft start current.

In conclusion, the LT3596EUHG#PBF is a high-performance LED driver that is ideal for powering high-voltage LEDs in general lighting, backlighting, and RGB light applications. With its wide input range, advanced PWM dimming capability, and easy-to-use programming interface, this device provides a robust solution for LEDdrive applications in harsh environments.

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