ATMSL3163BT

Series:	*
Part Status:	Obsolete
Base Part Number:	MSL3163

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ATMSL3163BT Application Field and Working Principle

ATMSL3163BT is a 2-channel LED driver which belongs to the Power Management Integrated Circuits (PMIC) as a LED driver. It is designed for driving two white-light LED with a constant current across wide range for applications like display backlights, small LCD module panel backlighting, advertisement lights, and reading lights. The chip is suitable for 2 kinds of LED applications: LED general illumination (constant current LED) and LED series connection.

Features of ATMSL3163BT

The chip utilizes a single inductor for each channel to drive both channels simultaneously, reducing the types of external components. Besides, it has some other features:

• Wide input voltage range from 3V to 28V
• Wide output voltage range from 0V to 28V
• Wide dimming range from 1% (minimum) to 100%
• High accuracy of output current range
• Excellent ripple rejection ratio
• Fixed frequency
• Overload and over current protection
• Built-in temperature sensor

1V to 28V Input Voltage & 0V to 28V Output Voltage

The main advantage of this chip is that it can operate from 1V to 28V input voltage, and from 0V to 28V output voltage. This allows the device to be applied in many situations. The device is used to drive LED strips and LED arrays with various LED colors and combinations, such as cool white, warm white, and multi-color LED strips. In addition, ATMSL3163BT can be used to drive small LCD modules backlighting with high efficiency and low power consumption, which is beneficial for mobile devices.

Wide Dimming Range & High Accuracy Output Current Range

ATMSL3163BT also has wide dimming range from 1% to 100%, and high accuracy of output current range, which is beneficial for many applications such as commercial lighting and decoration. The wide dimming range is powered by the PWM technique and the accuracy of output current is ensured by the built-in current sensing circuit. The PWM technique also allows for smooth dimming effect, which is suitable for commercial lighting applications. Furthermore, the device also has excellent ripple rejection ratio and fixed frequency, which is beneficial for low noise and low power consumption in operation.

Overload & Over Current Protection & Built-in Temperature Sensor

Furthermore, ATMSL3163BT has built-in overload and over current protection. This is especially beneficial for protecting the device from over currents which may damage the LEDs or any other attached devices. In addition, the chip is also equipped with built-in temperature sensor, which can be used to monitor the operating temperature ofthe device, providing reliable temperature protection.

Conclusion

ATMSL3163BT is an excellent LED driver from PMIC which has many features and advantages. It offers wide input voltage range, wide output voltage range, wide dimming range, high accuracy of output current range, excellent ripple rejection ratio, fixed frequency, overload and over current protection, and built-in temperature sensor. All these features make ATMSL3163BT a great LED driver for LED illumination applications, small LCD module panel backlighting, advertisement lights, and reading lights.

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