NCP1071STAT3G AC-DC Power Conversion by ON Semiconductor

High-Voltage Switcher for Low Power Offline SMPS

Status: Unknown
Series: NCP1071
RoHS: Compliant
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The NCP1071 integrate a fixed frequency current mode controller with a 700 V MOSFET. Available in a PDIP−7 or SOT−223 package, the NCP1071 offers a high level of integration, including soft−start, frequency−jittering, short−circuit protection, skip−cycle, a maximum peak current set point, ramp compensation, and a Dynamic Self−Supply (eliminating the need for an auxiliary winding). Unlike other monolithic solutions, the NCP1071 is quiet by nature: during nominal load operation, the part switches at one of the available frequencies (65, 100 or 130 kHz). When the output power demand diminishes, the IC automatically enters frequency foldback mode and provides excellent efficiency at light loads. When the power demand reduces further, it enters into a skip mode to reduce the standby consumption down to a no load condition. Protection features include: a timer to detect an overload or a short−circuit event, Overvoltage Protection with auto−recovery and AC input line voltage detection. For improved standby performance, the connection of an auxiliary winding stops the DSS operation and helps to reduce input power consumption below 50 mW at high line.

Prices starting from US$0.31


Distributor Starting From Stock
Logo for Avnet America Avnet America US$0.32
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Logo for RS Americas RS Americas US$0.85
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Logo for element14 element14 US$1.20
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Logo for Newark Electronics Newark Electronics -
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Features

Integrated 700 V MOSFET with RDS(on) of 22Ω
Current-Mode Fixed Frequency Operation (65/100/130 kHz)
Peak Current: NCP1071 = 350mA
Skip-Cycle Operation at Low Peak Current
Dynamic Self-Supply (DSS)
Auto-Recovery Output Short Circuit Protection with Timer-Based Detection
Frequency Foldback Operation
300µA No Load Power Consumption
Frequency Jittering (including during frequency foldback mode)
AC Input Voltage Line Detection
Benefits
Up to 20W output SMPS design capability
Ability to scale for efficiency or size
Adjust output current protection based on output power demand
Eliminate acoustic noise
Eliminate Aux winding
Provides more robust protection without worrying about the coupling of the aux winding
Improved efficiency at light load / Improved EMI over the entire load
<50mW no Load Power Consumption
Better EMI Signature Over the Entire Operating Range
Enhanced Protection Against Faults With Low Input Voltage
Applications
Auxiliary
White Goods
E-Meter
Standby Isolated Power Supplies
Smart Meter
End Products
Standby Isolated Power Supplies
Smart Meter
Auxiliary
White Goods
E-Meter

Specifications

Compliance Pb-free Halide free

Alternative Descriptions

Current Mode PWM Controller 350mA 4-Pin SOT-223 T/R | Avnet America
Offline SMPSU controller, HV,350mA, SOT223 | ON Semiconductor NCP1071STAT3G | RS Americas
AC/DC CONVERTER, FLYBACK, SOT-223-4 | element14
Ac/Dc Converter, Flyback, Sot-223-4 | Newark Electronics


Frequently Asked Questions

Where can I find additional details, specifications and documents for a NCP1071STAT3G?

Additional datasheets, footprints and schematics for NCP1071STAT3G are listed on our Part Details page. You can also find images and similar parts to NCP1071STAT3G on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for NCP1071STAT3G on our Product Comparison page. Access via the 'View Pricing & Stock' button to view NCP1071STAT3G price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does NCP1071STAT3G fall under?

The NCP1071STAT3G is listed under Power Management > AC-DC Power Conversion > Offline Regulators.

Can I view similar or alternative parts?

You can view similar parts to NCP1071STAT3G when available in the Offline Regulators range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the NCP1071STAT3G you can contact the distributor directly for product support, shipping queries etc.

Is the NCP1071STAT3G RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by ON Semiconductor.

Which authorised distributors for NCP1071STAT3G have stock available?

Authorised distributors including Avnet America, RS Americas, element14, Farnell and Newark Electronics have stock available or on a lead time for NCP1071STAT3G.

How do I check stock and lead times for all distributors?

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