NCP1342AMDCDD1R2G The On Semiconductor NCP1342AMDCDD1R2G is a highly integrated quasi-resonant flyback controller. It operates with a wide supply voltage range and features adjustable overpower protection.
Mfr Part #:

NCP1342AMDCDD1R2G

Available from 2 distributors
Mfr Name: On Semiconductor
On Semiconductor
The On Semiconductor NCP1342AMDCDD1R2G is a highly integrated quasi-resonant flyback controller. It operates with a wide supply voltage range and features adjustable overpower protection.
✓ Total Stock: 48,500 pcs
$ Price Range: $0.75

NCP1342AMDCDD1R2G Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
47,500 pcs
47500 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
1,000 pcs
1000 pcs On Request 1 On Request On Request On Request On Request On Request

NCP1342AMDCDD1R2G 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
Supplier Device Package
Topology
Voltage
Voltage Supply

NCP1342AMDCDD1R2G Description

Short technical summary and product information.

The NCP1342AMDCDD1R2G from On Semiconductor is a highly integrated quasi-resonant flyback controller designed for high-performance off-line power converters. It supports a wide operating voltage range from 9V to 28V and offers adjustable overpower protection.

 

Key features include valley switching operation with valley-lockout for noise-free performance, frequency foldback with a minimum frequency clamp of 25 kHz for improved light load efficiency, and rapid frequency foldback for quick switching frequency reduction. The controller also incorporates skip mode with quiet-skip technology for optimal light load performance and minimized current consumption, enabling no-load power consumption below 30 mW.

 

This device includes integrated high-voltage startup circuitry with brownout detection and an integrated X2 capacitor discharge capability. Protective features such as overvoltage protection, abnormal overcurrent fault protection, internal temperature shutdown, and adjustable overpower protection enhance converter ruggedness. The NCP1342AMDCDD1R2G is supplied in a 9-SOIC package suitable for surface mounting.

 

Its design considerations include frequency jittering for reduced EMI signature and a 4 ms soft-start timer. The controller is suitable for applications requiring efficient and reliable power conversion.

NCP1342AMDCDD1R2G Quick Information

Product Type: Quasi-Resonant Flyback Controller
Series: NCP1342
Canonical Name: NCP1342 Quasi-Resonant Flyback Controller
Subcategory: Power Management ICs

NCP1342AMDCDD1R2G Compliance

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

NCP1342AMDCDD1R2G Estimated Pricing

Qty Low High
1+ $0.75 $0.75

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

NCP1342AMDCDD1R2G Features

  • Highly integrated quasi-resonant flyback controller.
  • Wide 9V to 28V operating voltage range.
  • Adjustable overpower and frequency protection.
  • Minimized current consumption below 30 mW.
  • Surface mount 9-SOIC package.

NCP1342AMDCDD1R2G Applications

  • High-performance off-line power converters.
  • Designs requiring low no-load power.
  • Applications needing noise-free operation.
  • Efficient light load power delivery.

NCP1342AMDCDD1R2G FAQs

7 frequently asked questions generated from this part’s specifications.
What is the supply voltage range of the NCP1342AMDCDD1R2G?

9 V ~ 28 V

What package is the NCP1342AMDCDD1R2G available in?

10-SOP (0.154", 3.90mm Width), 9 leads, Surface Mount

What is the operating temperature range?

-40°C ~ 125°C (TJ)

What is the switching frequency range?

25 kHz ~ 500 kHz

What fault protections does the controller include?

Current limiting, overload, overpower, over temperature, over voltage, and short circuit protection.

What topology does the NCP1342 support?

Flyback topology with isolated output.

Does the NCP1342 use valley switching?

Yes, it features valley switching with valley-lockout for noise-free operation.

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