NCP1077AAP100G

Duty Cycle:	68%
Mounting Type:	Through Hole
Supplier Device Package:	8-PDIP
Package / Case:	8-DIP (0.300", 7.62mm), 7 Leads
Operating Temperature:	-40°C ~ 125°C (TJ)
Control Features:	--
Fault Protection:	Current Limiting, Over Power, Over Temperature, Over Voltage, Short Circuit
Power (Watts):	31W
Frequency - Switching:	100kHz
Series:	--
Voltage - Supply (Vcc/Vdd):	6.5 V ~ 20 V
Voltage - Start Up:	8.4V
Topology:	Flyback
Voltage - Breakdown:	700V
Internal Switch(s):	Yes
Output Isolation:	Isolated
Part Status:	Active
Packaging:	Tube

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Introduction to NCP1077AAP100G AC DC Converters and Offline Switchers

NCP1077AAP100G is a high-efficiency AC/DC converter and offline switcher designed and manufactured by ON Semiconductor, the global leader in power management solutions. The device provides high performance, low noise operation, and excellent power efficiency in a wide range of designs. It is suitable for buck, boost, and fly back designs, ideal for low power applications such as remote sensing, industrial power, and automotive power.

Features of NCP1077AAP100G

NCP1077AAP100G AC/DC converter and offline switcher offers several features to ensure reliable and efficient operation. The device utilizes a high switching frequency of up to 400 kHz, enhance efficiency and minimize output-voltage noise. It also supports overvoltage protection, overcurrent protection, and thermal protection. The device also supportsAdjustkeith Bus Voltage (ADBV) technology to enable precise control of the output voltage. Additionally, the device features a high-quality pulse-width modulation (PWM) controller, a low-power Start-up Control (SUT) circuit, and a simple, reliable Start-up-Loss Protection (SULP) circuit.

Applications of NCP1077AAP100G

NCP1077AAP100G AC/DC converters and offline switchers are ideal for a range of low power applications including:

• Industrial power supplies
• Remote sensing
• Telecommunications
• Consumer electronics
• Consumer appliances
• Network appliances
• Data centers
• Motor Drive
• Automotive power

Working Principle of NCP1077AAP100G

The NCP1077AAP100G is an efficient AC/DC converter and offline switcher designed to convert a small AC mains voltage to a regulated DC output voltage using the quasi-resonant flyback converter technique. The device uses the principle of voltage multiplication to achieve high efficiency. The PWM switching technique is used to convert the voltage from the mains to the desired output voltage.When the output load current increases, the PWM controller reduces the duty cycle from the set point to reduce the power supplied to the load. This helps to maintain the output voltage within a specified range and improve efficiency.The device uses low switching frequency, which helps to reduce EMI and switching losses. The Start-up Control (SUT) circuit automatically activates the controller when the input voltage is applied and provides a high current gate drive. The gate drive outputs are protected against fault conditions. The overvoltage and overcurrent protection circuitry shut down the output when the output thresholds specified are exceeded, ensuring safe operation.

Conclusion

The NCP1077AAP100G AC/DC converter and offline switcher are a reliable and efficient solution for a range of low power applications. It provides high efficiency, low noise operation and excellent power efficiency. The device is easy to use and is cost-effective, which makes it an ideal choice for applications where space and cost savings are critical.

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