MAX20090ATP/V+

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MAX20090ATP/V+ Application Field and Working Principle

MAX20090ATP/V+ is categorized as Poly Phase DC/DC LED Regulator with current mode control from Maxim Integrated. It is an application-specific integrated circuit (ASIC) designed like a PMIC/LED driver in type and architecture, as it is primarily used in LED lighting applications. The device also features two complementary output channels, each of which can be independently configured as either a boost, buck-boost, or buck regulator with both fixed and adjustable output voltage levels.

The output current of the MAX20090ATP/V+ is fixed by a combination of an external resistor and capacitor, while a current loop maintains its output voltage steady. The ASIC includes two oscillator structures, which provide each of the two channels with a frequency of adjustment and PWM regulation based on the output load. The MAX20090ATP/V+ is capable of working with both high and low input voltages, allowing for utilization at different power sources.

The MAX20090ATP/V+ device is designed to drive multiple LED stacks, its buck-boost regulator also capable of providing precisely controlled forward voltages to maximize the light output of the LEDs. It provides a wide range of output current up to 500mA, adjustable via a resistor. The device is also equipped with multiple safety functions, including over-voltage, over-temperature, and over-current protection.

The PMIC/LED driver also features a power saving shutdown mode. When inactive, the device exceeds the maximum standby-mode current requirements. This feature is ideal for energy saving applications, and helps reduce filter size because of the low power consumption.

In addition, the MAX20090ATP/V+ comes with a power good indicator to notify of correct output voltages and a slew rate control circuit for smooth light fading and dimming control. It also comprises a PWM dimming control with a wide range of on/off control signals.

The MAX20090ATP/V+ device is an advanced Poly Phase DC/DC LED Regulator with current mode control. It expands LED dimming applications by providing precise control over forward voltage and output current. In addition, the device has several built-in features, such as over-voltage, over-current, and over-temperature protection. Also, it maintains low power consumption during stand-by mode, while it provides a power good monitoring of output voltages.

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