LC5511D

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The LC5511D PMIC-LED driver is a power management integrated circuit (PMIC) designed to drive multi-channel LED applications, such as those found in the automotive and IP cameras markets. This device offers extremely accurate current control, fast response time, and high temperature stability with its advanced capabilities. With these elements, it is an ideal choice for critical applications where high levels of current accuracy and reliability are required.

Features

The LC5511D PMIC-LED driver is well-equipped to meet the demands of automotive and IP camera applications. It features an integrated high-voltage buck converter, which allows it to achieve high current driving efficiencies and accuracy. Other features of this device include a unique current sensing capability to improve the accuracy of its current control and a wide input voltage range from 3.6V up to 42V. High voltage and current stability of more than 563°C (-40°C to +125°C) are also offered by this device.

Applications

The LC5511D PMIC-LED driver is suitable for automotive and IP camera applications, especially those which require high levels of current accuracy and reliability. Automotive applications include headlamps, interior lighting, exterior lighting, and signal lamps. For IP cameras, this device is ideal for applications such as image brightness control and white balance control in night vision and underwater cameras.

Working Principle

The LC5511D PMIC-LED driver works by converting the input voltage to the required current output needed by the LEDs being driven. This is done through the use of a buck converter, which consists of two main components: an inductor and a switch. The inductor creates a magnetic field, which stores energy and can be released at a later time. The switch regulates the current flowing through the inductor and determines the output voltage of the device. The current output is determined based on the amount of voltage that the switch allows the inductor to transmit from the input voltage.

The device also features an on-board current-sense amplifier, which is used to monitor and control the current output of the device. This amplifier works by measuring the current flowing through a shunt resistor, which then determines the duty cycle of the output LED. The duty cycle determines the amount of current being driven and helps ensure that the LED output is maintained at a stable level.

In addition to its current control capabilities, the LC5511D PMIC-LED driver also features several levels of over-voltage and over-temperature protection to help ensure safe operation. This device also offers PWM dimming dimming capabilities, allowing for smooth and adjustable dimming of the LED output.

Conclusion

The LC5511D PMIC-LED driver is a powerful, feature-rich device that is designed to meet the demanding requirements of automotive and IP camera applications. This device offers an integrated high-voltage buck converter, accurate current sensing capabilities, high voltage and current stability, and several levels of protection to ensure safe operation. With these features, this device ensures that critical applications are met with reliable and accurate current control.

The specific data is subject to PDF, and the above content is for reference