LM3466TA/NOPB

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The LM3466TA/NOPB is a DC/DC LED driver made by Texas Instruments. It provides constant current and constant voltage control in a single package. It is available in a GreenMode™ 6-pin Small Outline (SO) package and it can support up to five LEDs in each package. It provides a maximum of 1.8W of power and has a maximum switching frequency of 3MHz. Its low ripple makes it suitable for use in automotive or consumer applications.

The LM3466TA/NOPB is designed to control the current of LEDs over a wide range of input voltages. It is a synchronous Buck-Boost DC/DC converter with a frequency programmable output current. It uses constant on-time current mode control which provides excellent output regulation accuracy in applications that require constant LED current over a wide LED forward voltage range. The LM3466TA/NOPB can also be used for driving high power LEDs in Buck or Buck-Boost converter configurations.

The LM3466TA/NOPB has many built-in safety features such as thermal protection, under voltage protection, an over temperature protection circuit and an active loop control circuit to prevent unstable behavior. Additionally, it has a rated quiescent supply current of 1.5mA reducing system power consumption. The operating temperature range is -40C to +125C.

The LM3466TA/NOPB\'s working principle can be broken down into a few basic steps. First, the output of the PWM controller is controlled by either a voltage or current loop in order to regulate the desired output current or voltage. The PWM output modulates an internal power switch, which produces a pulse-width-modulated (PWM) output waveform. This waveform is then rectified to provide the constant current and voltage across the LEDs. Finally, there are two onboard low-side switches which enable the power to be switchably used to drive the LED.

The LM3466TA/NOPB provides a wide range of LED driver types that are suitable for use in a variety of automotive and consumer lighting applications. Applications such as daytime running lights, backlighting, display case lighting, and accent lamps can all benefit from the high efficiency and low ripple generated by the LM3466TA/NOPB. Additionally, the LM3466TA/NOPB can also be used for industrial and communications applications, such as WiFi access points, switches, and data centers, wherein the ability to drive a wide range of LED modules and currents is required.

In conclusion, the LM3466TA/NOPB is a high-output LED driver with safety protections and a wide range of LED driver types to suit any application. It provides excellent output regulation accuracy and its simple design makes it well-suited for automotive and consumer lighting applications. It can also be used for industrial and communications applications, and its low power consumption helps to ensure energy efficiency.

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