SY87739LHI

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SY87739LHI is a low voltage single-supply various reference (VREF) generator widely used in various industrial fields, such as Factory Automation, Automotive, Network Communications, Wearable Devices, and Medical. It is a highly customizable programmable regulator IC that combines many features, such as precision voltage reference, active droop control, output minimum/maximum limit, monitoring and diagnostic features like over-current protection, enabling and disabling, temperature variation control, etc.

This IC digitally embodiments various function block diagrams and integrates various inputs like voltage sensing, temperature sensing, current sensing, soft-start, current limit, etc. which makes it the ideal choice for optimized solution of space limited and power sensitive applications. With the SY87739LHI programmable VREF generator, professional circuit designers can easily configure the VREF settings as per the application requirements and power preferences.

Application Field:

The SY87739LHI VREF generator is suitable for various systems applications including data acquisition, video processing, ethernet, computer, and multi-media. It is widely used in space limited and power sensitive machines, such as industrial machinery, automotive, and medical equipment.

This IC also finds its application in voltage regulation in embedded systems. It provides accurate reference voltage output even with high frequency noise and thermal fluctuations. Due to its adjustable reference voltage, it is also used to provide regulators with a single supply voltage.

Working Principle:

The SY87739LHI VREF generator works on the principle of internal bias current. This IC efficiently stores a programmable internal reference voltage in its control register and further adjusts the reference voltage according to the external input voltage conditions.

The IC takes power from the external power source or from the embedded system. Once the IC is powered up, an internal bias current acts as the reference voltage and sends out a reference voltage through it’s output pin. The external voltage conditions like temperature, noise, etc. can be detected by the IC, and the internal bias currents is adjusted accordingly to provide a precise or stable output voltage.

Apart from providing flexible reference voltage control, the integrated features in SY87739LHI chip also allows for features like temperature regulation, overload protection and current limit programming. Thus, it becomes the ideal choice for applications like power regulation and voltage supervision.

In summary, the SY87739LHI VREF generator is an extremely useful IC, designed to provide maximum efficiency and a flexible approach towards voltage and current regulation. It is widely used in diverse industrial and consumer application fields, due to its ability to provide precision and stable output voltage even with fluctuations in external conditions.

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