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Name: NCP1230D65R2G
Brand: ON Semiconductor
SKU: NCP1230D65R2G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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ON Semiconductor NCP1230D65R2G

Part No.:: NCP1230D65R2G

Manufacturer:: ON Semiconductor

Package:: -

Datasheet:: NCP1230D65R2G.pdf

Description:: ANA PWM CURRENT-MODE CONT

In Stock:: 3542

Quantity:: Add To Cart

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NCP1230D65R2G Specifications

Packaging:
Tape & Reel (TR),Bulk
Series:
*
ProductStatus:
Last Time Buy
OutputIsolation:
-
InternalSwitch(s):
-
Voltage-Breakdown:
-
Topology:
-
Voltage-StartUp:
-
Voltage-Supply(Vcc/Vdd):
-
DutyCycle:
-
Frequency-Switching:
-
Power(Watts):
-
FaultProtection:
-
ControlFeatures:
-
OperatingTemperature:
-

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NCP1230D65R2G information

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NCP1230D65R2G Typical application Circuitry

NCP1230D65R2G

NCP1230D65R2G is a fixed-frequency, current-mode PWM controller designed by ON Semiconductor, tailored for high-performance off-line power supplies. It integrates a range of features such as adjustable overcurrent protection, frequency foldback, and skip mode, which make it highly efficient for applications including AC-DC adapters, off-line battery chargers, and auxiliary power supplies for consumer electronics, PCs, and servers.

Application Scenario: AC-DC Adapter for Laptops

A prime application for the NCP1230D65R2G is in the design of AC-DC adapters for laptops, where it controls the conversion of AC mains power to the DC voltage required to charge the laptop's battery and power the device.

Parameter Features

- Fixed-Frequency Operation: Ensures consistent performance and simplifies EMI filtering.

- Adjustable Overcurrent Protection (OCP): Enhances safety and reliability by preventing damage due to excessive current.

- Frequency Foldback and Skip Mode: Improves efficiency under light-load conditions and reduces standby power consumption.

- Integrated Soft-Start: Limits inrush current during startup, protecting internal components and extending their lifespan.

Detailed Circuit Connection for AC-DC Adapter

AC Input and Rectification

Connect the AC mains to a rectification and filter circuit, then link the output to the high-voltage DC bus. This DC bus is connected to the VCC pin (Pin 7) of the NCP1230D65R2G to supply the controller.

PWM Control for Power Switch

The GATE pin (Pin 6) of the NCP1230D65R2G drives the gate of the primary side power MOSFET. This MOSFET, in turn, is coupled to the primary winding of the transformer, controlling the energy transfer to the secondary side where it is rectified and filtered to provide the DC output.

Feedback and Regulation

Utilize an optocoupler connected from the secondary side's output voltage back to the FB pin (Pin 3) to provide isolated feedback. This setup allows the NCP1230D65R2G to regulate the output voltage accurately, ensuring the adapter delivers the correct voltage to the laptop.

Overcurrent Protection Setup

Connect a sense resistor in series with the source of the primary MOSFET and link it to the CS pin (Pin 2) for current sensing. This configuration enables the adjustable overcurrent protection feature of the NCP1230D65R2G, safeguarding the power supply and the laptop from excessive current conditions.

Design Considerations

When designing an AC-DC adapter with the NCP1230D65R2G, consider the following key aspects:

- Transformer Design: Carefully design the transformer to match the switching frequency of the NCP1230D65R2G and to ensure efficient energy transfer to the secondary side.

- Component Selection: Choose components, especially the power MOSFET and secondary side diodes, that can handle the peak currents and voltages without excessive losses or heat generation.

- EMI Mitigation: Implement appropriate EMI filtering at the AC input and near the PWM controller to comply with regulatory standards and prevent interference with other devices.

- Thermal Management: Assess the thermal performance of the entire adapter, focusing on the NCP1230D65R2G, the power MOSFET, and the transformer. Implement heat sinks or other cooling mechanisms as required to maintain optimal operating temperatures.

Incorporating the NCP1230D65R2G into the design of AC-DC adapters for laptops enables the creation of efficient, reliable, and compact power solutions, enhancing the usability and charging experience of portable devices.

NCP1230D65R2G FAQ

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6. What is the process for return or replacement of NCP1230D65R2G?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the NCP1230D65R2G we delivered, we will accept the replacement or return of the NCP1230D65R2G only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of NCP1230D65R2G.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations