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NCP1072STBT3G

AC/DC Off-Line Switcher IC, Flyback, 100 VAC - 250 VAC, 250 mA output, 19 W, SOT-223-4

ONSEMI NCP1072STBT3G
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Manufacturer:
ONSEMI ONSEMI
Manufacturer Part No:
NCP1072STBT3G
Order Code:
2217044
Technical Datasheet:
NCP1072STBT3G   Datasheet
See all Technical Docs

Product Overview

The NCP1072STBT3G is a High-voltage Switcher with 100kHz frequency for low power offline Switched Mode Power Supply (SMPS). It integrates fixed frequency current mode controller with a 700V MOSFET. It 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. When the output power demand diminishes, the IC automatically enters frequency fold-back 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 includes 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 50mW at high line.
  • Large creepage distance between high-voltage pins
  • Skip-cycle operation at low peak currents only - No acoustic noise
  • Dynamic self-supply - No need for an auxiliary winding
  • Auto-recovery output short circuit protection with timer-based detection
  • Auto-recovery overvoltage protection with auxiliary winding operation
  • Frequency jittering for better EMI signature, including frequency foldback mode
  • Frequency fold-back to improve efficiency at light load
  • Internal temperature shutdown
  • Internal 1ms soft-start
  • <50mW No load input consumption

Applications

Power Management, Consumer Electronics, Metering, Industrial

Warnings

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

Product Information

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100V

:
250V

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SOT-223

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4Pins

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19W

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Flyback

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-

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150°C

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-

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MSL 1 - Unlimited
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Technical Docs (2)

CAD Downloads

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Terms and Conditions

CAD Models - Notice
CAD Models and drawings are provided to you on a revocable limited licence for your internal use only but remain the property of the manufacturer who retain all intellectual property rights and ownership. They are provided to assist you in decision making and as design guide but are not guaranteed to be error free, accurate or up to date and is not intended to be taken as advice.
Use of these CAD models and other options provided are downloaded and used entirely at your own risk and by continuing you confirm acceptance of the above.

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