Mfr Part #:

NCP4307FBSNT1G

The ON Semiconductor NCP4307FBSNT1G is a high-performance driver for synchronous rectification MOSFETs in switch mode power supplies. It offers precise control and high efficiency operation.

✓ Total Stock: 16,805 pcs

$ Price Range: $0.75

NCP4307FBSNT1G Available from 1 distributor

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Flip Electronics ✓ Non-Authorised Inventory information	16,805 pcs On Request	16805 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

NCP4307FBSNT1G Description

Short technical summary and product information.

The NCP4307FBSNT1G from ON Semiconductor is a versatile synchronous rectification driver designed for high efficiency switch mode power supplies (SMPS). It is suitable for various topologies including DCM, CCM flyback, quasi-resonant flyback, and forward converters.

This driver features precise true secondary zero current detection and a typically 15 ns turn-off delay from the current sense input to the driver. It also includes internal minimum on-time with reverse current protection and minimum off-time with ringing detection for reliable operation. The device boasts a rugged current sense pin rated up to 200V and a peak current sink/source drive capability of 7 A / 2 A.

With a self-supply capability, the NCP4307FBSNT1G can be used in high-side configurations or low output voltage SMPS without an auxiliary winding. It operates within a voltage range up to 35V and includes an automatic light-load disable mode. The device is housed in a compact 6-TSOP package, suitable for surface mount applications.

Key features include its self-contained control of synchronous rectifiers, ultrafast turn-off trigger interface, and improved self-synchronization capability. These attributes enable maximum SMPS efficiency by allowing maximum synchronous rectification MOSFET conduction time.

NCP4307FBSNT1G Quick Information

Product Type: Power Supply Controller

Canonical Name: NCP4307 Synchronous Rectification Driver

Subcategory: Power Supply Controllers

NCP4307FBSNT1G Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

NCP4307FBSNT1G Estimated Pricing

Qty	Low	High
1+	$0.75	$0.75

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

NCP4307FBSNT1G Features

Controls synchronous rectifier in SMPS topologies.
Typically 15 ns turn-off delay.
Operates up to 35V supply voltage.
7 A / 2 A peak current drive capability.
Surface mount 6-TSOP package.

NCP4307FBSNT1G Applications

Used in notebook adapters.
Suitable for high power density AC/DC supplies.
Applicable in LCD TV power supplies.
Ideal for all SMPS with high efficiency needs.

NCP4307FBSNT1G FAQs

6 frequently asked questions generated from this part’s specifications.

What is the operating voltage of the NCP4307FBSNT1G?

The operating voltage is 35V.

What is the operating temperature range of the NCP4307FBSNT1G?

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

What package is the NCP4307FBSNT1G available in?

The NCP4307FBSNT1G is available in a surface-mount SOT-23-6 Thin (TSOT-23-6) package.

What is the peak drive current capability of the NCP4307FBSNT1G?

The peak current sink capability is 7 A and the peak source capability is 2 A.

What is the turn-off delay of the NCP4307FBSNT1G?

The typical turn-off delay from the current sense input to the driver output is 15 ns.

What is the current sense pin voltage rating?

The current sense pin is rated up to 200 V.

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