REC5-4812SRWZ/H4/A/SMD/CTRL-R

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The REC5-4812SRWZ/H4/A/SMD/CTRL-R is a DC DC converter, and its application field is wide and its working principle is relatively complex. It is mainly used in industrial, commercial, automotive, telecom and medical applications. Its most common application areas are electric drive systems, such as Motors, Automotive systems, industrial process variable adapters, and UAVs etc.

REC5-4812SRWZ/H4/A/SMD/CTRL-R is a non-isolated synchronous buck converter, which means that the output voltage is related to the input voltage. In the case of synchronous buck external synchronous rectification, it is necessary to enable the high side MOSFET and low side MOSFET to work synchronously, which requires two pairs of drive signals. And a control loop is used to regulate the output voltage and current.

Its working principle mainly consists of three parts: power conversion circuit, control circuit and protection circuit. The power conversion circuit mainly includes input and output rectifiers, internal synchronous rectification and filtering capacitors, while the control circuit mainly includes a voltage feedback loop and a PWM control loop. The switch control of the power tube in the power conversion circuit is through the on/off pulse signal of the control loop. The PWM control loop includes a laserShark processor, a current sensing circuit and a B-UL low side switching circuit.

In the external synchronous rectification process, the high side MOSFET and low side MOSFET are switched in opposite directions. The chip can work in overvoltage, short circuit, overcharge, overvoltage and other modes, which can provide a more flexible solution. This DC-DC converter also has PFC function, and PFC capacitor can increase the power factor of this power supply circuit, which can reduce harmonic distortion.

Overall, the REC5-4812SRWZ/H4/A/SMD/CTRL-R is an ideal choice for various industrial, commercial, automotive, telecom and medical applications. It can be used to deliver reliable power with high efficiency, high reliability and low ripple within a wide operating range. Its power conversion circuit, control circuit and protection circuit provide efficient and safe operation of systems.

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