TL497AID

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TL497AID is a highly-integrated IC voltage regulator, belonging to the series of PMIC - Voltage Regulators - DC DC Switching Regulators. It is specially designed with a multitude of integrated functions as well as low on-resistance for driving power switches, allowing for a very simple circuit topology for wide range of applications.

Application Field

The application of TL497AID can be widely applied in consumer electronics and industrial applications, such as non-isolated power factor correction, isolated power supplies, isolated flyback converter, offline isolated DC/DC converters and similar circuits. Moreover, it is quite suitable for such kind of electronics requiring low-noise or high-precision power supply.

Operating Principle

The TL497AID utilizes a full-bridge control scheme to realize the switching between energy modes with high efficiency. At the heart of the IC regulator, an error amplifier compares the feedback voltage with a voltage reference and accordingly works with a pulse-width modulation (PWM) comparator to adjust the duty cycle, so as to keep keeping to the output voltage stability. With over temperature and over-current protection, it ensures security and reliability during working.

Additionally, it is supplemented by some advanced functions like amplifying the input port, making inverting and non-inverting logic as well as allowing for allowing for voltage scaling. This helps to amplify the weak input signal, allowing for a wider input power frequency range, which covers a wide range of consumer electronics.

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