NCP1072STAT3G AC-DC Power Conversion by ON Semiconductor

High Voltage Switching Regulator for Offline SMPS

Status: Active
Series: NCP1072
RoHS: Compliant
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The NCP1072 / NCP1075 products integrate a fixed frequency current mode controller with a 700 V MOSFET. Available in a PDIP-7 or SOT-223 package, the NCP1072/5 offer 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 NCP1072/5 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$0.62


Distributor Starting From Stock
Logo for Newark Electronics Newark Electronics US$0.82
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Logo for Future Electronics Future Electronics US$0.62
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Logo for Avnet America Avnet America US$0.67
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Logo for Avnet Asia Avnet Asia US$0.67
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Features

Integrated 700 V MOSFET with RDS(on) of 11 Ω
Current-Mode Fixed Frequency Operation (65/100/130 kHz)
Peak Current: NCP1072 = 250mA / NCP1075 = 450 mA
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 Supply
White Goods
End Products
Isolated Standby Power Supply
Smart Meter / E-Meter

Specifications

Description NCP1072
Compliance Pb-free Halide free
Control Mode Current Mode
fsw Typ (kHz) 65
fJitter Typ (%) Yes
Stand-by Mode Yes
RDS(ON) Typ (Ω) 11
V(BR)DSS Max (V) 700
IPeak (mA) 250
HV Start-up Min (V) Yes
DSS (mA) 8
UVLO 6.4
Short Circuit Protection Yes
Over Power Compensation No
Brown-out No
Latch No
Package Type SOT-223-4 / TO-261-4D

Alternative Descriptions

Ac-Dc Converter, 250Ma, Sot-223-4 | Newark Electronics
NCP1072 Series 8.6 V 100 kHz 250mA Surface Mount High Voltage Switcher - SOT-223 | Future Electronics
Current Mode PWM Controller 250mA 4-Pin(3+Tab) SOT-223 T/R | Avnet America
AC/DC, 700V, 0.25A, 65KHZ, 4SOT223 | Farnell


Frequently Asked Questions

Where can I find additional details, specifications and documents for a NCP1072STAT3G?

Additional datasheets, footprints and schematics for NCP1072STAT3G are listed on our Part Details page. You can also find images and similar parts to NCP1072STAT3G on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for NCP1072STAT3G on our Product Comparison page. Access via the 'View Pricing & Stock' button to view NCP1072STAT3G price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does NCP1072STAT3G fall under?

The NCP1072STAT3G is listed under Power Management > AC-DC Power Conversion > Offline Regulators.

Can I view similar or alternative parts?

You can view similar parts to NCP1072STAT3G 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 NCP1072STAT3G you can contact the distributor directly for product support, shipping queries etc.

Is the NCP1072STAT3G RoHS compliant?

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

Which authorised distributors for NCP1072STAT3G have stock available?

Authorised distributors including Newark Electronics, Future Electronics, Avnet America, Avnet Asia and Farnell have stock available or on a lead time for NCP1072STAT3G.

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