NCP1129BP65G The On Semiconductor NCP1129BP65G is an IC designed for offline power supplies. It features a Flyback topology and operates at 65kHz with a maximum output power of 43W.
Mfr Part #:

NCP1129BP65G

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
The On Semiconductor NCP1129BP65G is an IC designed for offline power supplies. It features a Flyback topology and operates at 65kHz with a maximum output power of 43W.
✓ Total Stock: 7,850 pcs
$ Price Range: $0.75

NCP1129BP65G Available from 1 distributor

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7,850 pcs
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NCP1129BP65G 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
Power (Watts)
Supplier Device Package
Supplier Package
Topology
Voltage

NCP1129BP65G Description

Short technical summary and product information.

The NCP1129BP65G from On Semiconductor is an integrated circuit designed for offline power supply applications. It utilizes a fixed-frequency peak current mode controller with a 650 V, 5.5 A MOSFET. This device operates in a Flyback topology and supports an output power of up to 43 W.

 

Key electrical specifications include an operating voltage range of 8.5V to 35V and a switching frequency of 65kHz. It offers a duty cycle of 80% and includes comprehensive fault protection features such as Over Load, Over Temperature, Over Voltage, and Short Circuit protection. The device is housed in a 7-PDIP package and is designed for Through Hole mounting.

 

With a wide operating temperature range from -40°C to 150°C (TJ), the NCP1129BP65G is suitable for various environmental conditions. It is also RoHS3 compliant and has a Moisture Sensitivity Level (MSL) of 1.

NCP1129BP65G Quick Information

Product Type: AC DC Converters, Offline Switches
Series: NCP1129
Canonical Name: NCP1129BP65G Offline Switcher IC
Subcategory: AC DC Converters

NCP1129BP65G Compliance

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

NCP1129BP65G Estimated Pricing

Qty Low High
1+ $0.75 $0.75

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

NCP1129BP65G Features

  • Integrated 650V, 5.5A MOSFET.
  • Fixed-frequency 65kHz current mode control.
  • Supports 43W peak output power.
  • Wide operating voltage 8.5V to 35V.
  • Through Hole mounting in 7-PDIP package.

NCP1129BP65G Applications

  • Designed for offline power supplies.
  • Suitable for Flyback converter designs.
  • Enables efficient light load operation.
  • Provides robust fault protection.

NCP1129BP65G FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the NCP1129BP65G?

The operating voltage range is 8.5V to 35V.

What is the switching frequency of the NCP1129BP65G?

The switching frequency is 65 kHz.

What is the maximum power output of the NCP1129BP65G?

The maximum peak power output is 43 W.

What package is the NCP1129BP65G available in?

The device is available in an 8-DIP (0.300", 7.62mm) through-hole package with 7 leads, also known as 7-PDIP.

What is the operating temperature range of the NCP1129BP65G?

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

Does the NCP1129BP65G have a built-in MOSFET?

Yes, it integrates a 650V, 5.5A MOSFET with a typical RDS(on) of 2.1 Ω.

What fault protections does the NCP1129BP65G include?

It includes over-load, over-temperature, over-voltage, and short-circuit protection.

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