NCP1207AP

Duty Cycle:	--
Base Part Number:	NCP1207
Mounting Type:	Through Hole
Supplier Device Package:	8-PDIP
Package / Case:	8-DIP (0.300", 7.62mm)
Operating Temperature:	-40°C ~ 125°C (TJ)
Control Features:	--
Fault Protection:	Current Limiting, Over Load, Over Temperature, Over Voltage
Frequency - Switching:	Up to 200kHz
Series:	--
Voltage - Supply (Vcc/Vdd):	10.6 V ~ 20 V
Topology:	Flyback
Voltage - Breakdown:	--
Internal Switch(s):	No
Output Isolation:	Isolated
Part Status:	Obsolete
Packaging:	Tube

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Introduction to NCP1207AP

The NCP1207AP is a fully integrated Pulse Width Modulator (PWM) integrated circuit (IC). It is also a member of ON Semiconductor’s Pulse Width Modulator family. This integrated circuit is a key component when it comes to the design of Power Management and Power Management Integrated Circuits (PMICs). This particular device is specifically designed for stand-alone optimized applications, such as AC/DC converter and offline switcher in green-mode applications.In terms of application fields, NCP1207AP is used to regulate current in those applications that require a high performance and high power of control. To meet these needs, the NCP1207AP provides exact, monotonic and hysteretic current-mode control with improved performance. The device is designed to provide very accurate control and operation in a wide range of operating conditions. Additionally, it has an adjustable transition threshold voltage, external frequency synchronization and many different bootstrap options.

Features of NCP1207AP

The NCP1207AP is capable of delivering up to 400 V of drain voltage in continuous mode and up to 20 A of current in peak mode. It is also capable of operating with +/- 5 % of accuracy as well as providing excellent dynamic response characteristics. Thanks to the IC\'s wide range of adjustable transition threshold voltages and external frequency synchronization, it can meet the specific design requirements of any particular application.The device is also designed to be very reliable and to minimize EMI emissions. It contains an over-voltage and under-voltage protection circuit, a latch off circuit and a thermal overload protection circuit. This allows the device to operate safely and reliably, even under extreme conditions.Additionally, the NCP1207AP\'s high degree of integration and low standby current consumption make it an ideal choice for modern power management and green-mode applications.

Working Principle of NCP1207AP

The NCP1207AP operates according to the current-mode control principle, which is based on the measurement of the current that flows through the inductor of the secondary power stage. When the current rises above the transition threshold voltage (also known as the "deadtime" voltage), the device triggers the MOSFET transistors of the secondary power stage and discharges the stored energy into the load.When the current falls below the transition threshold voltage, the device disconnects the voltage source from the load and the device enters into a "sleep" mode, in which a very low amount of current is consumed.The transition threshold voltage is adjustable, allowing for a wide range of operating frequencies and for precision control of the energy transfer. A fast control loop also allows for a very accurate regulation of the output power.

Benefits of NCP1207AP

The main benefits of using the NCP1207AP are :• Simplicity of design thanks to its all-in-one solution • Improved performance due to the extremely accurate monotonic & Hysteretic current-mode control • Low standby current consumption • Excellent dynamic response characteristics • EMI minimization • Over-voltage and under-voltage protection circuits • Latch off circuit • Thermal overload protection • High lifetime due to the non-degradable materials used • Improved reliability in case of environmental disturbances

Conclusion

The NCP1207AP Pulse Width Modulator is a robust and reliable integrated circuit that is designed for applications such as AC/DC converters, offline switchers, and green-mode applications. It offers a great level of precision and control, and features excellent dynamic response characteristics, EMI minimization, adjustable transition thresholds, a low standby current consumption, and several protection circuits. Its high integration capabilities, low power consumption, and strong reliability make it an ideal choice for modern power management and green-mode applications.

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