NCP1251ASN100T1G The ON Semiconductor NCP1251ASN100T1G is a current-mode PWM controller designed for offline power supplies. It operates at 100kHz and is housed in a 6-TSOP package.
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NCP1251ASN100T1G

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
The ON Semiconductor NCP1251ASN100T1G is a current-mode PWM controller designed for offline power supplies. It operates at 100kHz and is housed in a 6-TSOP package.
✓ Total Stock: 18,000 pcs
$ Price Range: $0.75

NCP1251ASN100T1G Available from 1 distributor

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✓ Non-Authorised
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NCP1251ASN100T1G Specifications Quick View

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

NCP1251ASN100T1G Description

Short technical summary and product information.

The NCP1251ASN100T1G from ON Semiconductor is a highly integrated PWM controller for offline power supplies. It features fixed-frequency, current-mode control operation at 100 kHz, with frequency foldback down to 26 kHz under light load conditions.

 

This controller supports a VCC supply range of 8.8 V to 28 V and includes internal features such as ramp compensation and a fixed 4 ms soft-start. For protection, it incorporates over power, over voltage, and a 100 ms timer-based auto-recovery short-circuit protection.

 

The device is packaged in a 6-TSOP (SOT-23-6 Thin) surface-mount package, making it suitable for compact designs. Its operating temperature range is -40°C to 125°C (TJ).

 

Typical applications include AC-DC converters for TVs, set-top boxes, printers, and offline adapters for notebooks and netbooks.

NCP1251ASN100T1G Quick Information

Product Type: AC DC Converter
Canonical Name: NCP1251 Current-Mode PWM Controller
Subcategory: Offline Switch

NCP1251ASN100T1G Compliance

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

NCP1251ASN100T1G Estimated Pricing

Qty Low High
1+ $0.75 $0.75

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

NCP1251ASN100T1G Features

  • 100 kHz fixed-frequency current-mode control.
  • Frequency foldback down to 26 kHz.
  • Integrated over power and over voltage protection.
  • 100 ms timer-based auto-recovery short-circuit protection.
  • 6-TSOP surface-mount package.

NCP1251ASN100T1G Applications

  • Offline power supplies for TVs.
  • AC-DC converters for set-top boxes.
  • Power adapters for notebooks.
  • Offline converters for printers.

NCP1251ASN100T1G FAQs

5 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the NCP1251ASN100T1G?

The operating voltage range is 8.8 V to 28 V.

What is the operating temperature range of the NCP1251ASN100T1G?

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

What type of package is the NCP1251ASN100T1G in?

The NCP1251ASN100T1G is available in a 6-TSOP (SOT-23-6 Thin) package.

What fault protection features are included in the NCP1251ASN100T1G?

It includes Over Power, Over Voltage, and Short Circuit protection.

What is the switching frequency of the NCP1251ASN100T1G?

The switching frequency is 100 kHz in normal operation and folds back down to 26 kHz under light load conditions.

NCP1251ASN100T1G Alternate Parts

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NCP1250BSN100T1G
NCP1250BSN100T1G
On Semiconductor
The ON Semiconductor NCP1250BSN100T1G is a current-mode PWM controller designed for offline power supplies. It operates at a fixed frequency of 100kHz and offers integrated over power, over voltage, and short circuit protection.
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