NCP1238BD65R2G The NCP1238BD65R2G is a 65 kHz flyback PWM controller from On Semiconductor. It operates from 9.5V to 28V and includes comprehensive fault protection.
Mfr Part #:

NCP1238BD65R2G

Available from 2 distributors
Mfr Name: On Semiconductor
On Semiconductor
The NCP1238BD65R2G is a 65 kHz flyback PWM controller from On Semiconductor. It operates from 9.5V to 28V and includes comprehensive fault protection.
✓ Total Stock: 10,934 pcs
$ Price Range: $0.75

NCP1238BD65R2G 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
10,000 pcs
10000 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
934 pcs
934 pcs On Request 1 On Request On Request 1226+ On Request On Request

NCP1238BD65R2G Specifications Quick View

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

NCP1238BD65R2G Description

Short technical summary and product information.

The NCP1238BD65R2G is a fixed-frequency flyback PWM controller designed for AC-DC power supplies. It operates at 65 kHz and supports an input voltage range of 9.5V to 28V. The controller features an isolated output topology and is intended for offline flyback converters.

 

Key specifications include a maximum duty cycle of 80%, ±1.0A peak drive capability, and a 4.0 ms soft-start time. The oscillator precision is ±7% and peak current limit precision is ±5% over the entire temperature range. Fault protection includes current limiting, overload, over temperature, over voltage, and short circuit.

 

The device is available in a 7-SOIC or 8-SOIC (7 leads) package for surface mount mounting. It is lead-free and halogen-free as verified by the datasheet.

NCP1238BD65R2G Quick Information

Product Type: AC-DC Flyback Controller
Canonical Name: NCP1238BD65R2G Flyback PWM Controller
Subcategory: Flyback Controllers

NCP1238BD65R2G Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Pb-Free

NCP1238BD65R2G Estimated Pricing

Qty Low High
1+ $0.75 $0.75

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

NCP1238BD65R2G Features

  • 65 kHz fixed frequency flyback PWM controller.
  • Wide input voltage range 9.5V to 28V.
  • Comprehensive fault protection with current limiting.
  • ±1.0A peak drive capability for external MOSFET.
  • Surface mount package in 7-SOIC or 8-SOIC.

NCP1238BD65R2G Applications

  • Ideal for AC-DC offline flyback converters.
  • Used in power supplies for industrial applications.
  • Suitable for isolated power conversion designs.
  • Applicable in battery chargers and adapters.

NCP1238BD65R2G FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the NCP1238BD65R2G?

The operating voltage range is 9.5V to 28V.

What is the operating temperature range?

The operating temperature range is -40°C to 150°C (junction temperature).

What package options are available for this device?

The NCP1238BD65R2G is available in a 7-SOIC package or an 8-SOIC (0.154", 3.90mm Width) with 7 leads, surface mount.

What is the switching frequency of the NCP1238BD65R2G?

The switching frequency is 65 kHz.

What fault protections does the NCP1238BD65R2G include?

It includes current limiting, overload, over temperature, over voltage, and short circuit protection.

What is the maximum duty cycle?

The maximum duty cycle is 80%.

Is the NCP1238BD65R2G lead-free and halogen-free?

Yes, it is lead-free and halogen-free as verified by the datasheet.

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