NCP1271D100R2G The ON Semiconductor NCP1271D100R2G is a PWM controller for offline switch flyback applications. It operates at 100kHz with a voltage range of 10V to 20V.
Mfr Part #:

NCP1271D100R2G

Available from 2 distributors
Mfr Name: On Semiconductor
On Semiconductor
The ON Semiconductor NCP1271D100R2G is a PWM controller for offline switch flyback applications. It operates at 100kHz with a voltage range of 10V to 20V.
✓ Total Stock: 18,136 pcs
$ Price Range: $0.75

NCP1271D100R2G 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
17,136 pcs
17136 pcs On Request 1 On Request On Request 07+ 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

NCP1271D100R2G 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
SVHC Present
Supplier Device Package
Topology
Voltage

NCP1271D100R2G Description

Short technical summary and product information.

The NCP1271D100R2G from ON Semiconductor is a fixed-frequency, current-mode PWM controller designed for offline switch flyback converters. This device features a 100kHz operating frequency and supports an input voltage range of 10V to 20V.

 

Key electrical characteristics include an 80% duty cycle and fault protection for current limiting, overload, overvoltage, and short circuits. The controller also offers features like adjustable skip level, internal latch for protection implementation, and frequency jittering for softened EMI signature. It is capable of +500 mA/−800 mA peak current drive and can achieve standby power below 100 mW.

 

Packaged in a 7-SOIC surface mount package, the NCP1271D100R2G is suitable for applications such as AC-DC adapters for notebooks and LCD monitors, offline battery chargers, and consumer electronic appliances like STBs and DVD players. Its design prioritizes ruggedness and component cost-effectiveness.

NCP1271D100R2G Quick Information

Product Type: AC DC Converter
Canonical Name: NCP1271 PWM Controller
Subcategory: AC DC Converters, Offline Switches

NCP1271D100R2G Compliance

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

NCP1271D100R2G Estimated Pricing

Qty Low High
1+ $0.75 $0.75

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

NCP1271D100R2G Features

  • Fixed-frequency current-mode PWM controller.
  • Operates at 100kHz with 10V to 20V input.
  • Features robust fault protection mechanisms.
  • Supports standby power below 100mW.
  • Surface mount 7-SOIC package.

NCP1271D100R2G Applications

  • Ideal for AC-DC adapters.
  • Suitable for offline battery chargers.
  • Used in consumer electronics.
  • Designed for flyback converters.

NCP1271D100R2G FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating frequency of the NCP1271D100R2G?

The operating frequency is 100kHz.

What is the voltage range for the NCP1271D100R2G?

The voltage range is 10V to 20V.

What is the operating temperature range?

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

What type of fault protection does this device offer?

It offers current limiting, over load, over voltage, and short circuit protection.

What is the topology of the NCP1271D100R2G?

The topology is Flyback.

Is the output isolated?

Yes, the output is isolated.

What is the duty cycle?

The duty cycle is 80%.

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