MSL2161DQ

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MSL2161DQ is a PMIC - LED driver integrated circuit (IC) which is utilized for various applications in the electrical and electronics industries. The IC can be used for driving either white or RGB LEDs (light emitting diodes).

The flexibility of the MSL2161DQ makes it suitable for a wide variety of applications including:

• Portable electronics, such as mobile phones, tablets and portable gaming devices.
• Industrial and home lighting.
• Interior vehicle lighting.
• Signage and instrumentation.

The MSL2161DQ supports nine constant current level settings for consistent output current over wide range of forward voltage changes. The LED driver also supports LED string voltage up to 28V; the LED forward voltage can be regulated from 10V to 30V.

The MSL2161DQ is a constant current linear topology LED driver designed to provide high power and constant current in a cost-effective solution. The MSL2161DQ is capable of controlling multiple LEDs connected in series without the need for specialized circuitry processing. Ideally, the circuit features a transconductance amplifier which provides constant current control with a low residual ripple on the output.

The circuit also utilizes a MOSFET ( Metal Oxide Semiconductor Field Effect Transistor) to switch the LEDs on and off and to regulate the supply voltage. The switching MOSFET has an on resistance (RDS(on)) of 3.3Ω, allowing the driver to dissipate only low amounts of power in the form of heat.

The current controlled output provided by the MSL2161DQ allows the operating parameters of the LED to be set accurately. This minimizes LED power consumption and ensures maximum LED lifetime. Additionally, the IC features a soft-start current which helps to reduce inrush current.

An additional benefit of the MSL2161DQ is its high efficiency; typically the IC operates in either continuous conduction or discontinuous conduction modes and provides a typical efficiency of greater than 90%.

Overall, the MSL2161DQ is a cost effective and robust solution for controlling multiple high power LEDs in a variety of applications. The IC offers excellent performance and reliability while consuming very low power; allowing it to be used in energy-critical applications.

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