STR-A6132

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STR-A6132 is an integrated power management and power conversion IC, designed for use as an offline switcher, AC to DC converter, and DC to DC converter. It is one of many power management products produced by Sanken Electric Co., Ltd, and it is authored mainly to assist in the cost-effective, reliable and efficient power supply design. The STR-A6132 integrated circuits combine numerous functions into a single package.

The STR-A6132 has many useful applications, ranging from current-mode control circuits to flyback, forward and push-pull modes for many AC-DC and DC-DC conversion needs. It was designed to be highly efficient, with great thermal dissipation characteristics that helps prevent excessive heat buildup. This is extremely beneficial when doing mass production and design repeatability. The IC also features simple control circuit, resulting in minimal space must be given in the board at the design stage.

The STR-A6132 can be used as an offline switcher with a current rating ranging from 2W to 7W. An integrated startup circuit provides softstart current limiting as it decreases the output current and increases safety during use. The IC also works well with PWM or hysteretic control to provide power saving and has a trimming output voltage range from 4.2V to 9.6V for flexible design.

The STR-A6132 offers a unique cutting-edge protection architecture, which includes over temperature, over voltage, and over current protections. This can all be monitored through an external temperature sensor or by using an internal temperature sensing device. Other features such as under voltage lockout, skip cycle, and flexible standby functions are all implemented as well without the need for external components. This also makes it easy to consider a wide range of offline switcher applications.

The STR-A6132’s main working principle is based on fixed-frequency control flyback topology to regulate the output of the device. This approach allows for a fast response time, precise control and reliability. The chip has three main parts which include a pulse-width modulation (PWM) control circuit, a power switch and an error amplifier. The PWM control block generates the demand for power conversion as per the set voltage and current limits. The power switch then uses the demand to regulate the power switch output voltage and current. The error amplifier controls the power switch’s on/off time. This ensures the power switch output adheres to the set parameters.

The STR-A6132 is the ideal choice for offline switcher design, AC to DC and DC to DC conversion needs. Its various useful features, highly efficient design and multiple functions integrated into a single package make it an excellent choice for both professional and consumer electronic products.

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