LM3538TME/NOPB

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The LM3538TME/NOPB from Texas Instruments is a Boost Mode Constant Current Led Driver designed to drive up to 4 LEDs in series from input voltages of up to 38V. It combines a simple to use boost converter with a built-in 12-bit Digital to Analog Converter (DAC). It is specifically designed for automotive, industrial and outdoor lighting applications where robust and reliable operation is essential. This module makes it easy to control LEDs at any current level in a wide voltage range and with a wide array of dimming techniques.

The LM3538TME/NOPB includes an onboard microcontroller that is pre-programmed to provide the necessary control and power management functions for an LED drivers. The microcontrollerautomatically sets a current limit for regulating the output current. This ensures that the output current is stable, independent of the input voltage and capable of driving up to 4 LEDs in series. The 12-bit DAC allows for fine control over the output current and also eliminates the need for a separate power supply for the microcontroller.

The LM3538TME/NOPB incorporates a variety of dimming features including pulse-width modulation (PWM), linear LED dimming, LED dimming with multiple pulse width modulation (MPWM) modes, and a low power standby mode. For PWM applications, the device includes an internal control voltage regulator and a PWM control interface. This allows for the precise control of the LED brightness by regulating the PWM duty cycle. For linear LED dimming applications, the device also includes an internal linear dimming control circuit. It can also be used to control multiple LED strings independently.

The LM3538TME/NOPB is designed to be compatible with standard automotive lighting systems and meets the requirements of J2030 for high reliability and quality. It is also designed to meet the requirements of a variety of safety standards such as automotive EMI/EMC standards, automotive safety standard ISO16750-2, and automotive environmental standard ISO 7626. This device integrates with a range of automotive diagnostic systems including OBD-II and Onboard Diagnostics (OBD) variants.

In summary, the LM3538TME/NOPB is an ideal choice for applications that require robust and reliable operation in a wide range of automotive, industrial, and outdoor lighting applications. It provides a cost-effective solution that simplifies LED drivers design through fewer components and an easy-to-configure onboard microcontroller. It is a perfect choice for applications that require precise control of the LED current and comprehensive dimming capabilities.

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