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NCP1342AMAACD1R2G The ON Semiconductor NCP1342AMAACD1R2G is a highly integrated quasi-resonant flyback controller designed for high-performance off-line power converters. It operates within a wide voltage range and offers features for efficiency at light loads.
Mfr Part #:

NCP1342AMAACD1R2G

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
The ON Semiconductor NCP1342AMAACD1R2G is a highly integrated quasi-resonant flyback controller designed for high-performance off-line power converters. It operates within a wide voltage range and offers features for efficiency at light loads.
✓ Total Stock: 2,180 pcs
$ Price Range: $0.75

NCP1342AMAACD1R2G Available from 1 distributor

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✓ Non-Authorised
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2,180 pcs
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NCP1342AMAACD1R2G Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Control Features
Fault Protection
Frequency
Internal Switch(s)
Lead Style
Mounting Type
No Load Power Consumption
Operating Temperature
Operating Voltage
Output Isolation
SVHC Present
Supplier Device Package
Topology
Voltage
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NCP1342AMAACD1R2G Description

Short technical summary and product information.

The NCP1342AMAACD1R2G from ON Semiconductor is a sophisticated quasi-resonant flyback controller engineered for high-performance off-line power converters. This integrated circuit is designed to enable low no-load power consumption, below 30 mW, through its active X2 capacitor discharge feature.

 

Key electrical specifications include a wide VCC range from 9 V to 28 V and a typical operating frequency of 50 kHz. The controller incorporates proprietary valley-lockout circuitry for stable valley switching and transitions to frequency foldback mode to minimize switching losses. For enhanced light load performance, it features Rapid Frequency Foldback with Minimum Peak Current Modulation and Skip Mode with Quiet-Skip Technology.

 

Protective features are integrated to ensure converter ruggedness, including brownout detection, non-dissipative Over Power Protection (OPP), latched overvoltage protection, and NTC-ready overtemperature protection. The device is available in a 9-SOIC package, suitable for surface mount applications.

 

This controller is ideal for applications requiring efficient and reliable power conversion, such as in consumer electronics, adapters, and power supplies where low standby power and robust protection are critical.

NCP1342AMAACD1R2G Quick Information

Product Type: AC/DC Converters, Offline Switches
Canonical Name: NCP1342 Quasi-Resonant Flyback Controller
Subcategory: Power Management ICs

NCP1342AMAACD1R2G Compliance

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

NCP1342AMAACD1R2G Estimated Pricing

Qty Low High
1+ $0.75 $0.75

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

NCP1342AMAACD1R2G Features

  • Highly integrated quasi-resonant flyback controller.
  • Enables no-load power consumption below 30 mW.
  • Wide VCC range from 9 V to 28 V.
  • Features valley switching and frequency foldback.
  • Includes over power and overvoltage protection.

NCP1342AMAACD1R2G Applications

  • Designing high-performance off-line power converters.
  • Enabling low no-load power consumption.
  • Optimizing efficiency at light load conditions.
  • Ensuring converter ruggedness with protection features.

NCP1342AMAACD1R2G FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the NCP1342AMAACD1R2G?

The operating voltage range is from 9 V to 28 V.

What is the operating temperature range for this component?

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

What is the typical operating frequency of the NCP1342AMAACD1R2G?

The typical operating frequency is 50 kHz.

What type of topology does the NCP1342AMAACD1R2G use?

It uses a Flyback topology.

What fault protection features are included?

It includes Over Current, Over/Under Voltage, and Short Circuit protection.

What is the no-load power consumption capability?

It enables no-load power consumption below 30 mW.

What is the minimum frequency clamp value?

The minimum frequency clamp is 25 kHz.

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