AL8861Y-13 Integrated Circuits (ICs)

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The AL8861Y-13 is a high-speed DC-DC, current-mode PWM controller suitable for driving LEDs in a variety of electronic displays. It is specifically designed to reduce EMI and RFI noise, and meets regulatory requirements for use in applications such in computer displays, telephone and signature pad displays, monitors, TVs, and other field applications. The AL8861Y-13 is an ideal solution for powering arrays of LEDs in applications that require an efficient, low noise solution.

The device is a single-channel controller with a fixed frequency of up to 1.2MHz. The device features a maximum peak current of up to 8mA and a maximum peak voltage of 28V. It is capable of supporting a wide range of input voltages (from 5V to 18V). The output voltage is adjustable from 0.4V to 28V to accommodate various LED strings.

The AL8861Y-13 provides several integrated protection features such as soft-start, over voltage, over current, and thermal overload for improved reliability and system safety. Its integrated safe-start ensures that the LED current starts from 0mA and rises gradually up to full power. The device also has excellent load transient response characteristics, and under-voltage lockout to prevent normal operation at low input voltages.

The AL8861Y-13 offers a superior efficiency due to its high-precision current regulation capability, allowing the device to provide a maximum output current up to 4A with a typical full-load efficiency of 98%. The device can be used with a wide range of LEDs, including high-power LEDs, for applications such as LCD backlighting and general indoor/outdoor lighting.

The AL8861Y-13 is easy to design with its integrated feedback loop and under-voltage lockout to ensure safe start-up. The device also features an internal reference voltage, adjustable slew rate and a timer that controls the frequency of the PWM pulse. The device\'s high reliability makes it suitable for use in demanding environments such as in automotive applications.

In summary, the AL8861Y-13 is a high-performance, high-efficiency DC-DC LED controller with integrated protection features, suitable for driving LED strings in a variety of electronic displays. Applications include computer displays, telephone and signature pad displays, monitors, TVs, and other field applications.

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