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NCP1342ENDCEAD1R2G The On Semiconductor NCP1342ENDCEAD1R2G is a highly integrated quasi-resonant flyback controller designed for high-performance offline power converters. It operates within a wide voltage range and offers advanced protection features.
Mfr Part #:

NCP1342ENDCEAD1R2G

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
The On Semiconductor NCP1342ENDCEAD1R2G is a highly integrated quasi-resonant flyback controller designed for high-performance offline power converters. It operates within a wide voltage range and offers advanced protection features.
✓ Total Stock: 1,000 pcs
$ Price Range: $0.75

NCP1342ENDCEAD1R2G Available from 1 distributor

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✓ Non-Authorised
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Braun Electronic Components ✓
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1,000 pcs
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1000 pcs On Request 1 On Request On Request On Request On Request On Request
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NCP1342ENDCEAD1R2G Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Control Features
Fault Protection
Frequency
Internal Switch(s)
Mounting Type
Operating Temperature
Output Isolation
Power (Watts)
Supplier Device Package
Topology
Voltage
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NCP1342ENDCEAD1R2G Description

Short technical summary and product information.

The NCP1342ENDCEAD1R2G from On Semiconductor is a quasi-resonant flyback controller IC, suitable for designing high-performance offline power converters. It integrates features like active X2 capacitor discharge for low no-load power consumption, proprietary valley-lockout circuitry for stable switching, and quiet-skip mode for acoustic noise minimization.

 

This controller supports a wide VCC range from 9 V to 28 V and features a switching frequency up to 500 kHz, enabling smaller magnetics and higher power density. It includes robust fault protection mechanisms such as brownout detection, non-dissipative Over Power Protection (OPP), latched overvoltage protection, and NTC-ready overtemperature protection.

 

Designed for surface mounting, the NCP1342ENDCEAD1R2G comes in a 9-SOIC package. Its operating temperature range is -40°C to 125°C (TJ). The device is ideal for applications requiring efficient, compact, and reliable AC-DC power conversion, including AC-DC power adapters, battery chargers, and auxiliary power supplies in industrial and consumer electronics.

NCP1342ENDCEAD1R2G Quick Information

Product Type: Offline Switch Controller
Canonical Name: NCP1342ENDCEAD1R2G Quasi-Resonant Flyback Controller
Subcategory: Offline Switch Controllers

NCP1342ENDCEAD1R2G Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

NCP1342ENDCEAD1R2G Estimated Pricing

Qty Low High
1+ $0.75 $0.75

Estimated market price range - modelled values for guidance only, not live distributor offers.

NCP1342ENDCEAD1R2G Features

  • Highly integrated quasi-resonant flyback controller.
  • Wide 9V to 28V operating voltage range.
  • Up to 500kHz switching frequency capability.
  • Comprehensive fault protection features included.
  • Surface mount 9-SOIC package for easy assembly.

NCP1342ENDCEAD1R2G Applications

  • Used in AC-DC power adapters.
  • Suitable for battery chargers.
  • Applied in standby power supplies.
  • Utilized in auxiliary power supplies.

NCP1342ENDCEAD1R2G FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the NCP1342ENDCEAD1R2G?

The operating voltage range is 9V to 28V.

What is the switching frequency range of this controller?

The switching frequency is adjustable from 25kHz to 500kHz.

What is the operating temperature range?

The operating junction temperature range is -40°C to 125°C.

What package is the NCP1342ENDCEAD1R2G available in?

It is available in a surface mount 9-SOIC package (10-SOP, 9 leads).

Does this device have an internal switch?

No, it does not have an internal switch.

What fault protections are included?

Fault protections include current limiting, overload, over power, over temperature, over voltage, and short circuit.

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