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NCP4302ADR2G The On Semiconductor NCP4302ADR2G is a secondary-side synchronous flyback controller designed for high-efficiency flyback converters. It operates within a voltage range of 9.2V to 28V.
Mfr Part #:

NCP4302ADR2G

Available from 2 distributors
Mfr Name: On Semiconductor
On Semiconductor
The On Semiconductor NCP4302ADR2G is a secondary-side synchronous flyback controller designed for high-efficiency flyback converters. It operates within a voltage range of 9.2V to 28V.
✓ Total Stock: 4,600 pcs
$ Price Range: $0.75

NCP4302ADR2G Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Components Technology Group, Inc. ✓
Non-Authorised Inventory information
2,500 pcs
On Request
2500 pcs On Request 1 On Request On Request On Request On Request On Request
Husky International Electronic ✓
Non-Authorised Inventory information
2,100 pcs
On Request
2100 pcs On Request 1 On Request On Request N/A On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

NCP4302ADR2G Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Mounting Type
Operating Temperature
Operating Voltage
Supplier Device Package
Tape & Reel
Voltage
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NCP4302ADR2G Description

Short technical summary and product information.

The NCP4302ADR2G from On Semiconductor is a versatile secondary-side synchronous flyback controller. It integrates control and protection functions necessary for synchronous rectifier operation in flyback converters, enabling significant efficiency improvements in space-conscious applications like adaptors and chargers.

 

This controller supports various flyback topologies, including continuous mode (CCM), discontinuous mode (DCM), and quasi-resonant (QR) mode. It features high gate drive currents of 2.5 A source/sink, true secondary zero current detection, and flexibility in current sensing via MOSFET RDS(on) or an external CS resistor. The device includes an accurate TL431 type shunt regulator and an optocoupler driver, providing a single-chip secondary-side solution.

 

The NCP4302ADR2G operates over a wide temperature range of -40°C to 125°C and is housed in a standard 8-SOIC package. It is suitable for applications such as notebook adapters, LCD TV adapters, consumer appliances, Power Over Ethernet (PoE) devices, and battery chargers.

NCP4302ADR2G Quick Information

Product Type: Power Supply Controller
Canonical Name: NCP4302ADR2G Secondary Side Synchronous Flyback Controller
Subcategory: Secondary-Side Controller

NCP4302ADR2G Compliance

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

NCP4302ADR2G Estimated Pricing

Qty Low High
1+ $0.75 $0.75

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

NCP4302ADR2G Features

  • Controls synchronous rectifier in flyback converters.
  • Supports CCM, DCM, and QR flyback applications.
  • Features true secondary zero current detection.
  • Provides high gate drive currents (2.5 A).
  • Integrates TL431 shunt regulator and optocoupler driver.

NCP4302ADR2G Applications

  • Ideal for notebook and LCD TV adapters.
  • Suitable for consumer appliances like DVD players.
  • Used in Power Over Ethernet applications.
  • Applicable for battery charger designs.
  • Enhances efficiency in flyback converters.

NCP4302ADR2G FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of NCP4302ADR2G?

9.2V to 28V.

What is the operating temperature range?

-40°C to 125°C.

What package is the NCP4302ADR2G available in?

8-SOIC (SO-8) surface mount package.

What is the maximum switching frequency?

250 kHz.

What is the gate drive current capability?

2.5A source/sink.

Is the NCP4302ADR2G lead-free?

Yes, it is Pb-Free.

What is the low voltage reference value?

2.55V with 1% accuracy.

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