MAX6967ATE+

MAX6967ATE+ is an advanced, monolithic Pulse-Width Modulated (PWM) dimming and blinking controller and driver IC for Light-Emitting Diode (LED\'s) applications. The MAX6967ATE+ stands out against other LED drivers as an all-in-one solution. This integrated, integrated circuit (IC) includes a proportional feedback boost controller, a self-oscillating PWM dimming controller, and a regulated output-low-side buck driver. It has many similarities to a Power Management IC (PMIC), including the ability to control multiple LED strings from a single IC, and the ability to implement various brightness control options such as pulse-width modulation and analogue adjustment.

MAX6967ATE+ belongs in the PMIC LED Driver family, and is most commonly used with signs, indicator lights, and backlighting applications, such as LCD displays, so customers can control the dimming and what times the LED\'s turn on and off. It supports both analogue and digital (PWM) dimming control embedded in the IC, which also uses programmed dimming curves to reduce audible noise. It is available in both the 5-pin SOT23-5 and 8-pin SOP packages and operates over a wide 3.2V to 38V voltage range.

The MAX6967ATE+ works by providing a regulated output voltage, LED current regulation and the ability to control the brightness of each LED string. The maximum external control voltage of 2.5V, guarantees the same LED performance in spite of external power supply drift. Also, the adjustable feedback voltage maintains a constant LED current with varying line voltage and temperatures, by eliminating the need of external circuitry or components. The external PWM dimming signal allows for a wide range of output brightness control and precisely-defined dimming curves. Additionally, the supply current to power the IC is below 200uA, ensuring the efficiency of the IC when in low-power applications.

The IC has a range of features designed to make it user-friendly and customizable. These include denoise functions to reduce audible noise caused by LED dimming, a built-in temperature sensor, and many protection functions, including a short circuit protection, open circuit protection and over-voltage protection of LEDs. Furthermore, the MAX6967ATE+ supports a wide range of different LED types, colors and configurations.

In summary, the MAX6967ATE+ is an integrated high-efficiency LED controller and driver IC, designed to simplify LED design, reduce external components and improve LED performance and reliability. It belongs to the PMIC LED driver family, and can be used in a wide range of lighting applications. The IC offers digital dimming control, linear and programmable dimming curves, and adjustable feedback voltage for consistent LED performance. Additionally, the range of protection functions, small form factor, wide operating temperature range and low power consumption makes the MAX6967ATE+ a very attractive and durable solution.