AP1684MTR-G1

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AP1684MTR-G1 is a three-channel LED driver chip with integrated backlight boost LED. It was produced by Anpec, one of the leading semiconductor companies in China. This model of LED driver chip can be used in the PMIC-LED Driver category.

AP1684MTR-G1 can provide up to 36V output voltage and up to 1.2A output current for driving LEDs. It is suitable for applications such as laptop and monitor backlight. It can detect the input voltage automatically, so it is compatible with a wide input voltage range from 5.5V to 36V. It can also detect the continuity of LED and can adapt automatically to its load changes as LED load connected varies. It also provides monotonous LED dimming control with excellent output voltage stability over its operating temperature.

AP1684MTR-G1 is composed of five basic blocks, power management, boost converter, LED dimming, backlight control, and fault detection. It is a programmable chip and its parameters can be set by external pins. The chip has high capability on brightness correction, temperature compensation, fault protection, current limit, short circuit protection, and so on.

The power management part is used to monitor and manage the power supply and output voltage status. It also provides feedback to the system, such as power-good signal, brownout warning and sentinel signals for low battery voltage, over load, and over voltage. The boost converter block is used to drive LEDs and its optimized circuit design ensures excellent output voltage stability over its operating temperature range.

The LED dimming block uses a linear dimmer control with up to 10-bit programmable resolution. This ensures smooth and efficient dimming control over a wide range of brightness levels. The backlight control block is used to provide the output voltage feedback and can also be set to synchronize the switching PWM frequency. This block allows the system to optimize its power efficiency by using appropriate power levels.

The fault detection block features over-voltage protection, over-power protection, and current limit protection. It also provides circuit monitoring for thermal, over-voltage and over-current conditions. With these features, the chip can ensure a long lifespan for the LED devices.

In conclusion, AP1684MTR-G1 is a highly integrated LED driver chip suitable for a wide range of applications. It provides excellent output voltage stability and a wide range of features that ensure the safe and efficient operation of LED devices. The flexible configuration of its parameters allows the system to optimize its power efficiency, thus making it an ideal solution for LED driver applications.

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