LV5012MD-AH Integrated Circuits (ICs)

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The LV5012MD-AH is a PMIC (power management integrated circuit) LED (light-emitting diode) driver that provides an efficient, cost-effective solution for LED lighting applications. It supports parallel LED strings up to 32 strings as well as bidirectional and constant current LED systems. The operating characteristics of this driver are optimized for cost-sensitive application with moderate to high-density LED systems. With the features of low power and low power dissipation, the driver is suitable for various kinds of application field.

Application Field

The LV5012MD-AH driver is ideal for a wide range of commercial, lighting and industrial applications such as:

• LED signage
• LED street and garden lighting
• LED tube lighting
• LED strip and strip lighting
• LED home and commercial decorative lighting
• LED automotive and automotive lighting
• LED medical and medical lighting

It can also be used for general lighting applications that require medium to low lighting output.

Working Principle

The LV5012MD-AH driver works by continuously measuring the voltage of the LEDs and then adjusting the current accordingly. This means that the driver will maintain the constant current and voltage across the output even when the voltage of the input source changes. This driver employs a peak current limiting algorithm to keep the forward current below a certain level in order to prevent thermal runaway and over-current problems.

The LV5012MD-AH driver is capable of driving up to 32 LED strings. It supports up to 4 stages of output current to enable different brightness levels. The driver also features an open LED detection function which will automatically reduce the output current if an LED has failed in the LED chain. This helps to maintain the overall reliability of the LED system.

The driver is also capable of detecting a dark or open LED in the LED string. When a dark/open LED is detected, the current supplied to that LED string is reduced in order to prevent any unsafe operating conditions. This ensures the safe operation of the LED system and prevents any potential damage to the LEDs.

The LV5012MD-AH driver supports an input voltage range from 9 to 28V. It has a high power efficiency of up to 95%, which helps to reduce the power dissipation. The driver also has a wide temperature operating range of -40°C to 125°C and is able to operate at a frequency of up to 50 kHz.

Conclusion

The LV5012MD-AH driver is a cost-effective and efficient PMIC LED driver solution for various kinds of applications. It is suitable for parallel LED strings up to 32 strings as well as bidirectional and constant current LED systems. With its features of wide temperature operating range, low power dissipation, peak current limiting algorithm, and open LED detection, the LV5012MD-AH is an ideal choice for LED lighting applications.

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