BD6155FVM-TR

The BD6155FVM-TR is a high efficiency, low power LED Driver integrated into a multi-channel, multi-mode off-line LED constant current driver. This LED driver is suitable for LED lighting, LED signage, and LED backlight applications, and is capable of driving up to 4 LED strings each with the current up to 1.6A. It has a high total system efficiency of over 80%.

The BD6155FVM-TR has a wide selection of modes such as constant voltage operation mode, dynamic operation mode and analog operation mode, allowing it to optimize the total system power efficiency according to different needs. Additionally, the BD6155FVM-TR has built in MOSFETs, making it easy to control each string separately. It also has features such as a line down detection circuit, short protection and open protection, as well as a built-in thermal protection circuit.

The BD6155FVM-TR application field and working principle are as follows:

Application Field:

• LED lighting
• LED signage
• LED backlight

Working Principle:

The BD6155FVM-TR works by using a DC input power supply, a pulse-width modulated (PWM) signal, and a feedback voltage generated based on the current flowing through the LED string. In this way, a constant current is passed through the LED series while the power supply voltage stays constant.

The BD6155FVM-TR includes a voltage regulation control loop and an over-current protection loop. The voltage regulation control loop uses the feedback voltage to maintain the output current to a fixed level. The over-current protection loop helps to protect the LED strings from an excessive current. Additionally, the BD6155FVM-TR also has a built-in indicator to indicate the power-on status.

For constant voltage mode, the BD6155FVM-TR can be used to drive a fixed number of LED strings with a fixed current regulated in a range of 0.6A to 1.6A. For dynamic mode, the BD6155FVM-TR can be used to dynamically control the current of individual LED strings to optimize the total system efficiency, reducing the overall power consumption.

The BD6155FVM-TR is designed for high efficiency and low power LED Driver applications, allowing it to reduce the total system power while keeping the LED lighting system in its most efficient state, thus saving energy and money.