NCP1342AMDCDAD1R2G The ON Semiconductor NCP1342AMDCDAD1R2G is a highly integrated quasi-resonant flyback controller. It operates within a wide voltage range and features a surface mount package.
Mfr Part #:

NCP1342AMDCDAD1R2G

Available from 6 distributors
Mfr Name: On Semiconductor
On Semiconductor
The ON Semiconductor NCP1342AMDCDAD1R2G is a highly integrated quasi-resonant flyback controller. It operates within a wide voltage range and features a surface mount package.
✓ Total Stock: 74,931 pcs
$ Price Range: $0.75

NCP1342AMDCDAD1R2G Available from 6 distributors

✓ Authorised
✓ Non-Authorised

NCP1342AMDCDAD1R2G 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
Operating Voltage
Output Isolation
Supplier Device Package
Supplier Package
Topology
Voltage

NCP1342AMDCDAD1R2G Description

Short technical summary and product information.

The NCP1342AMDCDAD1R2G from ON Semiconductor is a highly integrated quasi-resonant flyback controller designed for high-performance off-line power converters. It operates with an input voltage range of 9V to 28V and supports a switching frequency between 25kHz and 500kHz.

 

This controller features a proprietary valley-lockout circuitry for stable valley switching and transitions to frequency foldback mode to reduce switching losses. It also incorporates Rapid Frequency Foldback and Quiet-Skip mode for efficient light load performance. Protective features include brownout detection, non-dissipative Over Power Protection (OPP), latched overvoltage protection, and NTC-ready overtemperature protection.

 

The NCP1342AMDCDAD1R2G is supplied in a 9-SOIC package suitable for surface mounting. Its design enables low no-load power consumption, making it suitable for energy-efficient power supply designs.

 

Key specifications include a wide VCC range, integrated X2 capacitor discharge capability, and abnormal overcurrent fault protection. The device also includes a 4ms soft-start timer for controlled power-up sequences.

NCP1342AMDCDAD1R2G Quick Information

Product Type: AC DC Converter, Offline Switch
Series: NCP1342
Canonical Name: NCP1342 Quasi-Resonant Flyback Controller
Subcategory: Quasi-Resonant Flyback Controller

NCP1342AMDCDAD1R2G Compliance

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

NCP1342AMDCDAD1R2G Estimated Pricing

Qty Low High
1+ $0.75 $0.75

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

NCP1342AMDCDAD1R2G Features

  • Highly integrated quasi-resonant flyback controller.
  • Wide operating voltage range from 9V to 28V.
  • Frequency adjustable from 25kHz to 500kHz.
  • Surface mount 9-SOIC package.
  • Includes multiple fault protection features.

NCP1342AMDCDAD1R2G Applications

  • Suitable for high-performance off-line converters.
  • Enables low no-load power consumption.
  • Optimized for light load efficiency.
  • Designed for robust power supply applications.

NCP1342AMDCDAD1R2G FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the NCP1342AMDCDAD1R2G?

The operating voltage range is 9 V to 28 V.

What is the operating frequency range?

The operating frequency range is 25 kHz to 500 kHz.

What is the operating temperature range?

The operating temperature range is -40°C to 125°C (TJ).

What type of topology does this controller use?

This controller uses a Flyback topology.

What fault protection features are included?

Fault protection includes Current Limiting, Over Load, Over Power, Over Temperature, Over Voltage, and Short Circuit.

How is the NCP1342AMDCDAD1R2G mounted?

It is a surface mount device.

What is the RoHS status?

The RoHS status is RoHS3 Compliant.

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