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NCP1340B5D1R2G The NCP1340B5D1R2G is an offline switch controller from On Semiconductor, designed for high-performance power converters. It operates within a 9V to 28V range and features a Flyback topology.
Mfr Part #:

NCP1340B5D1R2G

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
The NCP1340B5D1R2G is an offline switch controller from On Semiconductor, designed for high-performance power converters. It operates within a 9V to 28V range and features a Flyback topology.
✓ Total Stock: 15,000 pcs
$ Price Range: $0.75

NCP1340B5D1R2G Available from 1 distributor

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✓ Non-Authorised
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Flip Electronics ✓
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15,000 pcs
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NCP1340B5D1R2G Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Fault Protection
Internal Switch(s)
Lead Style
Mounting Type
No Load Power Consumption
Operating Temperature
Output Isolation
Supplier Device Package
Tape & Reel
Topology
Voltage
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NCP1340B5D1R2G Description

Short technical summary and product information.

The NCP1340B5D1R2G is a highly integrated quasi-resonant flyback controller from On Semiconductor, suitable for designing high-performance off-line power converters. It operates within a wide VCC range of 9 V to 28 V and is available in a 9-SOIC package for surface mounting.

 

Key features include integrated high-voltage startup with brownout detection, an active X2 capacitor discharge capability, and multiple protection features such as overvoltage, overcurrent, and overtemperature protection. The controller utilizes valley switching operation with valley-lockout for stable switching and noise-free operation. It also incorporates frequency foldback with a 25 kHz minimum frequency clamp and skip mode with quiet-skip technology to enhance efficiency at light loads and minimize acoustic noise.

 

This controller is designed for applications requiring efficient and robust power conversion. Its integrated features reduce component count and simplify design, making it suitable for various offline power supply applications.

NCP1340B5D1R2G Quick Information

Product Type: Offline Switch Controller
Canonical Name: NCP1340B5D1R2G Quasi-Resonant Flyback Controller
Subcategory: AC DC Converters

NCP1340B5D1R2G Compliance

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

NCP1340B5D1R2G Estimated Pricing

Qty Low High
1+ $0.75 $0.75

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

NCP1340B5D1R2G Features

  • Quasi-resonant flyback controller.
  • Wide 9V to 28V operating voltage.
  • Valley switching for stable operation.
  • Integrated protection features.
  • Surface mount 9-SOIC package.

NCP1340B5D1R2G Applications

  • High-performance offline power converters.
  • Designs requiring low noise operation.
  • Applications needing efficient light load performance.
  • Power supplies with robust protection.

NCP1340B5D1R2G FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the NCP1340B5D1R2G?

The operating voltage range is 9 V to 28 V.

What package type is the NCP1340B5D1R2G supplied in?

It is supplied in a 9-SOIC package, specifically a 10-SOP (0.154", 3.90mm Width) with 9 leads, for surface mounting.

What is the operating temperature range for this controller?

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

Is the NCP1340B5D1R2G RoHS compliant?

Yes, it is RoHS3 Compliant.

What protection features are integrated into the NCP1340B5D1R2G?

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

Does the NCP1340B5D1R2G support valley switching?

Yes, it features Valley Switching Operation with Valley-Lockout for noise-free operation.

What is the minimum frequency clamp for the NCP1340B5D1R2G?

The minimum frequency clamp is 25 kHz.

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