6串5W LED背光升压驱动器模块 6-String 5W LED Backlight Boost Driver Module
’s LXMG1960-28 module is a boost white LED Driver and can drive up to six-string 3.5- to 7-inch LED backlit panel applications including medical, point-of-sale POS, kiosk, ATM and lottery terminals. • LXMG1960-28 consists of a boost converter and six programmable precision current sinks. It can drive up to six different strings of LEDs with typical string-to-string current matching of 1 percent for optimal panel brightness uniformity. • PanelMatchtm technology incorporates a dual-in-line package DIP switch that allows the end user to program the LED string current between 10mA and 25mA in 1mA steps. This streamlines the customer supply chain since the same Microsemi product can be used to drive panels with significantly different LED-string currents. • StayLITtm technology increases the reliability of the product, optimizing it for applications like medical displays or ATM panels where continuous operation is of paramount importance. This feature disables the current sink if a string becomes open for any reason, while continuing to guarantee the other strings can operate normally. It also ensures that if one or several LEDs in a string short-circuit, the remaining string will continue to operate. • A wide input voltage 4.75V-28V allows a wide variety of input supply sources to be used without the addition of external boost circuits. • A dedicated input pin works with an external thermistor to provide output current fold-back to protect the LEDs in an over-temperature situation. • Multiple methods of dimming such as DC voltage, PWM signal and potentiometer are supported, and a combination of analog and digital dimming provides a dimming ratio of greater than 1000:1, which enhances the end-customer experience while extending battery life and saving energy. • Output LED short protection, over-voltage protection over-temperature protection are available features, continuing Microsemi’s long-standing commitment to provide high-performance, safe and reliable parts
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**Features**
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- Panel Match