LM3402MM/NOPB

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The LM3402MM/NOPB is an application specific integrated circuit (ASIC) designed to be used primarily in LED driver applications in consumer, commercial, and industrial electronic systems. It provides precise current control over a wide range of LED forward voltages and temperatures, as well as integrated fault protection, to ensure optimal operation of the LEDs. The device is available in a thermally enhanced 8-pin, 3mm x 3mm, LLP and 8-pin, 3mm x 4mm, Exposed Pad LLP packages.

LM3402MM/NOPB is a monolithic power management IC designed specifically for driving multiple LEDs from a single current source. It features a low-dropout voltage regulator with integrated high voltage boost switch, allowing it to effectively drive LEDs from up to 150V operation voltage. It also includes low side MOSFETs for load switching and for thermal fault protection (over-temperature sensing).

The device is capable of adjustable current operation from 2mA to 30mA using an external resistor. A nominal current of 400mA can be delivered to the LEDs provided that their continuous forward voltage does not exceed 150V. This current level can be adjusted over a wide range of temperatures by selecting the appropriate external temperature compensation resistor. The operating temperature range of the LM3402MM/NOPB is between -40°C and +125°C.

The LM3402MM/NOPB supports dimming operation in either analog or pulse width modulation (PWM) based LED arrays. The LED current can be adjusted down to 10% of maximum output by varying the input voltage. Additionally, the device supports external dimming inputs, allowing the user to control the LED current in real time. Other features of the device include adjustable current ripple, slew rate control, and programmable thermal shutdown.

The LM3402MM/NOPB is applicable for use in a wide range of LED applications including automotive, industrial, and consumer electronics. Common applications for the device include LED Matrix Drivers, LED Signage, LED TV Backlights, LED Automotive Lighting, and Medical Imaging Systems.

In summary, the LM3402MM/NOPB is an application specific integrated circuit designed primarily for LED driver applications. The device is capable of delivering properly regulated current over a wide range of forward voltages and temperatures and includes integrated protection features. The device it is suitable for a wide range of LED applications and supports both analog and PWM dimming for maximum user flexibility.

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