LM36922EVM

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LM36922EVM is an Evaluation Module for the LM36922 LED driver. This device is designed to provide a very high level of current precision and thermal performance for automotive headlamp applications. With the LM36922EVM, the LM36922 can be evaluated and measured in real-world conditions, allowing experienced automotive design engineers to quickly and accurately measure the device performance.

LM36922EVM Application Field and Working Principle

The LM36922EVM is designed to operate as a high-current, high-performance LED driver for use in automotive headlight applications. The device combines a high-current switching dimming stage with a low-voltage control stage. The combination of these two stages allows the driver to accommodate a wide range of current levels, while still providing high performance dimming control.

The LM36922EVM is capable of driving up to four high-current output channels. Each channel can support high-current loads of up to 5 Amps. The device also supports selectable current levels for each channel, with ranges from 10 mA to 5 A. The current level settings can be independently configured for each channel via an I2C bus. In addition, the device has adjustable output current slew rates that allow for adjustable dimming performance.

The LM36922EVM’s high-current control stage is based around a high-voltage MOSFET switch. This switch is capable of switching up to 5A of current with a maximum output voltage of 42V. The high-voltage switch allows for precise current control of the output channels and precise dimming control. The module also includes an SPI-controlled logic circuit which can be used to control the module’s operation.

The LM36922EVM’s low-voltage control stage is based around a low-voltage, low-power microcontroller. This microcontroller is capable of independently controlling up to four output channels, with each channel having an adjustable current range from 10 mA to 5 A. The low-voltage microcontroller can receive control signals from an external controller via a 2-wire I2C interface. The control signals can be used to adjust the output current levels, control the output current slew rates, and control the module’s overall operation.

The LM36922EVM’s unique design and capability make it the ideal device for automotive headlight applications. The device can operate over a wide range of operating temperature and current levels, while maintaining high performance dimming control. The device is capable of driving up to four high-current outputs, allowing for efficient and precise current delivery. In addition, the device’s low-voltage control stage allows for flexible control of the module’s operation. These features make the LM36922EVM the ideal choice for automotive headlight applications.

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