CHL8103-07CRT

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CHL8103-07CRT are high voltage DC-DC switching controllers dedicated to high power applications over wide input voltage range. It can operate from 4.5V to 60V at a 28V maximum output voltage.

The device uses synchronous rectification and step down buck topology to offer high efficiency over entire input voltage range. By means of a soft-off feature, CHL8103-07CRT can offer high current output with low conduction losses in the system. Furthermore, its internal dynamic voltage scaling (DVS) improves efficiency and reduces average power consumption, while its improved tolerance to high frequency ripple current makes it suitable for high power applications.

CHL8103-07CRT is designed to provide users with a flexible, robust and cost effective solution. Some of its features include primary side regulation, optional regulated output voltage, continuous output voltage sensing, adjustable current limit, dynamic bus bias control and programmable start-up voltage.

The device is available as an adjustable or fixed frequency controller, depending on the user\'s needs. It can be programmed using a serial interface or a TTL level. The device also includes an auxiliary winding to provide the reference voltage for current mode control.

In terms of safety, CHL8103-07CRT offers protection features such as over-voltage protection, over-current protection and over-temperature protection. It also has an integrated temperature compensation circuit for better system reliability.

Application field of CHL8103-07CRT includes High-Brightness LEDs (HBLED), Discrete LEDs and High-Performance electronics. It can be used in a wide range of power supply applications, such as motor control, battery charging, power sequencing and distributed power.

The working principle of CHL8103-07CRT is based on synchronous rectification with a step down buck topology. The device includes a primary-side control loop, a secondary-side control loop and a translation circuit. The primary-side control loop works by regulating the average output current at the constant frequency. The secondary-side control loop adjusts the output voltage based on the feedback from the output voltage sense circuit. The translation circuit is used to compensate for changes in the input voltage and to align the output voltage to the correct level.

The CHL8103-07CRT is also scalable and offers a cost effective solution for high power applications. It is highly reliable with multiple protection features and offers improved power conversion efficiency across the input voltage range. It is well suited for motor control applications, distributed power or any other application requiring high performance and stability.

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