ASP1212-N20NT

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ASP1212-N20NT is an integrated circuit (IC), specifically, a voltage regulator that is classified as a special purpose device. It is developed by Sanken Electric Co. Ltd and is a high-efficiency, high-performance AC/DC converter that can be used in many applications. It is intended to supply a regulated voltage to systems and applications that require high-current DC power.

The ASP1212-N20NT is designed to provide high-precision and low-noise regulated power by using pulse-width modulation (PWM) current-mode control technology. This makes the IC especially suitable for applications and systems that require a steady voltage for accurate and reliable operation. The PWM current-mode control technology helps to keep the power supply over a large range of line and load conditions to provide improved voltage regulation stability.

Features of the ASP1212-N20NT include high power efficiency, low power waste and low harmonics. The IC operates in the range of 4V to 12V, delivering up to 20A of continuous current at a maximum switch frequency of 250KHz. It also includes over-current protection and thermal shutdown features, further helping to ensure safe operation of the power supply.

The IC has a few different modes of operation, with the most common being the voltage-mode and constant on-time mode. In the voltage-mode, the IC sets the duty cycle and pulse-width according to the input voltage and output load, and then pulses the power switch accordingly. This allows the output voltage to remain steady and the power control loop to stay within the steady-state operating region. In the constant on-time mode, the ASIC programs the pulse-width according to the output voltage to adjust the output power.

To simplify the power supply design, the ASP1212-N20NT also includes an integrated sleep-mode controller, allowing the IC to enter a low-power sleep mode when not in use. This helps to minimize power consumption and reduce overall power wastage. In addition, the IC also includes a frequency-selectable switching-frequency set-point controller to help reduce EMI interference and disturbance.

Overall, the ASP1212-N20NT is a high-performance and high-efficiency regulator that can be used in a wide range of applications, such as motor control, inverters, uninterruptible power supplies, and power factor correction units. It features an integrated sleep-mode controller, over-current protection and thermal-shutdown features, as well as frequency selectable switching-frequency setpoint controller, making it a great choice for many power supply designs.

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