LT3599IFE#PBF

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PMIC - LED Drivers:

The LT3599IFE#PBF is a monolithic multiple channel LED driver designed to reduce the part count and simplify system design in various automotive and industrial applications. It features a single high-voltage power supply, a PWM dimming interface, and up to four channels. The internal switch architecture and P-channel MOSFETs provide continuous low current and low ripple current drive. The wide input voltage range, power dissipation and over-current protection make it suitable for a variety of LED applications, including displays, indicators and more.The LT3599IFE#PBF’s main advantage is its ability to drive multiple LEDs with a single supply. This provides more flexibility for system designers as it allows for a wide range of LED configurations without needing to design multiple LED driver circuits. It is also notable for its fast and precise PWM dimming control capability, which enables smooth LED dimming with little EMI emission.The LT3599IFE#PBF works by taking a single high voltage supply and distributing it across up to four LEDs. The device takes the input voltage and regulates it to 4.5V to 6.5V (depending on the slew rate and output current setting, both of which can be adjusted) and then distributes the current to each individual LED. The adjustable slew rate allows for the design of more efficient LED driver circuits, which helps to reduce overall system power consumption.The PWM interface allows for precise control of the LED brightness. The LT3599IFE#PBF uses a 10-bit resolution, which gives it 256 discreet dim levels ranging from 0.5% to 100%. This allows designers to optimise the LED brightness according to their application. The device also features an over-current protection, which is useful for preventing damage to LEDs when the input voltage is too high.In summary, the LT3599IFE#PBF is a monolithic multiple channel LED driver designed to provide a cost-effective and efficient solution for various automotive and industrial applications. Its wide input voltage range and power dissipation, together with its fast and precise PWM dimming control capability, make it a suitable choice for LED lighting applications.

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