DC773A

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Evaluation Boards - LED Drivers: The DC773A evaluation board is an ideal tool for learning about and testing high power LED driver applications and their principles of operation. The board features a P-channel MOSFET driver, a current sense amplifier, a diode bridge rectifier, and a charge pump. The board is easy to set up because it only requires a few connections to the vehicle\'s power supply and control interface.

The DC773A was specifically designed for automotive applications, providing an efficient and reliable solution for installing LEDs with up to 15-amp supplies. It has a wide input voltage range and can drive up to 15 amps of current. The device also incorporates a two-wire interface with a serial output, providing a simple and low-cost solution to many automotive lighting applications.

The evaluation board uses the two-wire interface to enable easy control of the LED brightness. It also functions as a current limiter to protect the LEDs from being overdriven. Additionally, the board supports a variety of control methods such as PWM, digital dimming, analog dimming and manual dimming control.

The working principle of the DC773A is based on an efficient P-channel MOSFET driver. The driver adjusts the voltage across the LED load, providing efficient and constant current sink to the LED. It also provides over-current protection and reverse current protection. The current sense amplifier provides sense information to the two-wire interface while the diode bridge rectifier supplies constant voltage to the driver to enable the system to run continuously.

The DC773A evaluation board is designed to enable easy and cost-effective experimentation and testing of constant-current LED drivers. It is a very flexible platform for exploring and implementing different types of high power LED driver applications. The unit is suited for automotive applications due to its wide input voltage range, efficient P-channel MOSFET driver, current sense amplifier and diode bridge rectifier.

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