TNY267PNAU

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PMIC (Power Management Integrated Circuit) is an integrated circuit used to manage and regulate power in an electronic system. The TNY267PNAU is a PMIC-DC/DC converter controller that combines high efficiency, superior performance, and a full set of protection features. The TNY267PNAU is suitable for applications that utilize an offline flyback topology and require a wide range of input and output voltages.

The TNY267PNAU is a current mode PWM controller with a wide operating range of up to 500 kHz making it suitable for low-noise and high power density architectures. The integrated Flyback controller includes all the features necessary to control the primary side of a switched-mode power supply. It has a synchronised under-voltage lockout circuitry with an input-to-output hysteresis range of 40 mV that prevents both overshoot and undershoot of the output voltage.

In addition, the TNY267PNAU is built with a low-voltage start-up feature, allowing the use of small-size capacitors with short charging times. This feature helps reduce component count and keeps the cost of the peripheral components down. The controller also offers a precision reference which allows for stable and accurate output voltages over the entire operating temperature range.

The TNY267PNAU has integrated built-in protection features including over-voltage protection, under-voltage protection, over-temperature protection, over-current protection, and short-circuit protection. The protection features are critical to the safety of the power module as they safeguard against potential hazards caused by fault conditions or excessive power drawn by the system.

In terms of application field, TNY267PNAU can be used in a wide range of applications such as automotive, home appliances, office electronics, petrochemicals, and many other industrial applications. The main application of the TNY267PNAU is for the offline flyback power conversion, which enables the use of smaller components and can save energy compared to other power conversion designs.

The working principle of the TNY267PNAU is based on the PWM comparator, which compares the output voltage with an internal reference voltage. If the output voltage is higher than the reference voltage, the PWM comparator turns off the switch, which reduces the output voltage. If the output voltage is lower than the reference voltage, the PWM comparator turns on the switch, which increases the output voltage. The process is repeated over and over again until the output voltage is stabilized by the PWM comparator.

In conclusion, the TNY267PNAU is a PMIC-DC/DC converter controller with a synchronised under-voltage lockout feature, a precision reference, and integrated protection features. The TNY267PNAU is suitable for applications that utilize an offline flyback topology and require a wide range of input and output voltages. It is mainly used in automotive, home appliances, office electronics, petrochemicals and many other industrial applications.

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