VN1160CTR-E

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PMIC - AC DC Converters, Offline Switchers

The VN1160CTR-E is a typical AC/DC converter and offline switcher that consists of two stages: a full-bridge rectifier and a quasi-resonant (QR) converter. It is designed to accept AC mains power of 100 to 277V, producing a nominal 12V DC output. The device’s operating temperature range is -40°C to 85°C and it generally functions as a quite efficient and reliable solution. However, it’s important to note that this device is not suitable for use in hazardous environments.

The full-bridge rectifier stage of the VN1160CTR-E converts the 50/60Hz AC voltage from the AC mains into DC. The internal MOSFET switches are controlled by an off-time control developing pulses which can effectively reduce the voltage stress of the rectifier. The QR converter circuit is responsible for converting the DC output from the rectifier stage into the desired steady DC output.

The QR converter circuit is designed with active drain voltage clamped technique, making it a very efficient solution. During the QR converter switching cycle, the primary side of the transformer is active, while the secondary side is partially active; this technique toggles between Zero Voltage Switching (ZVS) and Discontinuous Conduction Mode (DCM) to achieve high efficiency in both light and heavy load conditions.

The VN1160CTR-E is an ideal solutions for a range of applications, including in medical, industrial, and home applications. It is particularly well suited for powering LED bulbs and strip lighting, supplying power to hand-held electronics, and automotive applications. Given its size, the VN1160CTR-E can also be used in point-of-load power systems, further amplifying its flexibility. The converter also meets industrial safety requirements, making it an attractive choice for industrial applications.

In addition to its impressive versatility, the VN1160CTR-E is incredibly safe. It features an integrated Over Temperature Protection (OTP), Over Voltage Protection (OVP) and Under Voltage Lockout (UVLO) function that provides additional safety to the system. The converter also features an integrated Planar Start-up Circuit (PSC) and Soft Start circuit which help reduce the saturation voltage of the main transformer, reducing audible noise and surge current during the startup.

Overall, the VN1160CTR-E is an exceedingly efficient, reliable and safe solution for a range of applications. Its combination of high efficiency and impressive protection functions make it an ideal choice for industrial, medical, home, and automotive power solutions.

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