BACC63CU11D1PNH

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BACC63CU11D1PNH is a current-mode/constant frequency/constant on-time PWM controller specifically designed for highly efficiency active-clamp flyback topology. It is compliant with the Lead-Free applications and designed with the environment protection in mind. This controller can also be used for other non-real-time related applications that require ultra low total harmonic distortion (THD) control.

The BACC63CU11D1PNH application field is mainly used for high-performance, high-efficiency, green and low standby power architecture power supply. It can be widely applied to Adaptors, Battery Chargers, Industrial Power supplies, Office Equipment/Computer peripherals, Telecom Power supplies, TVs, and so on. It is a very important component for many power supply circuits and it can provide a control topology with low cost, high efficiency, wide loading capability and good EMI performance.

The BACC63CU11D1PNH is composed of a primary and a secondary PWM control stages. The primary control (C1) is based on a peak current-mode control, with internally fixed frequency operation, and its PWM ouput is tested with none-real time characteristics. Its secondary control block (C2) follows the C1 and is maintained at about 50% duty cycle. Both the primary and secondary control stages cooperate together to provide a precise output regulation, with fast response time, over light/heavy loading.

The BACC63CU11D1PNH is basically a simple yet efficient pulse-width modulation (PWM) controller. It is typically used for the implementation of half-bridge power factor correction circuits, as well as many other applications. The BACC63CU11D1PNH utilizes a current-mode control architecture that allows it to transfer the power to the load safely and efficiently. Its design enables the device to sense the load current and adjust the switching frequency and duty cycle as needed to control the output power. This ensures that the load receives an ideal amount of power and does not experience power demand changes.

As far as working principle is concerned, it uses a Compensating Waveform Generator (CGW) technology to build a constant on-time (COT) pulse-width modulation (PWM) control loop. This technology simplifies the control loop and reduces the system component complexity and total cost of ownership. By detecting the peaks of the momentary power requirement and adjusting the PWM duty cycle accordingly, it offers very fast transient response and stable operation over a wide range of operating conditions. The CGW also enhances loop stability, reliability, and robust operation on account of its tolerance to parameter variations.

In conclusion, the BACC63CU11D1PNH is an advanced current-mode constant frequency and constant on-time PWM controller, specifically designed for highly efficient active-clamp flyback topology and other non-real-time related applications. This device is widely used to implement high-performance, high-efficiency, green and low standby power architecture power supply in many fields, such as Adaptors, Battery Chargers, Industrial Power supplies, Office Equipment/Computer peripherals, Telecom Power supplies, etc. The CGW (Compensating Waveform Generator) technology used in this controller simplifies the control loop, reduces system component complexity, and increases the system’s stability, reliability, and robustness in various operating conditions.

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