NCP81109FMNTXG

Name: NCP81109FMNTXG
Brand: Onsemi
Rating: 4.5 (10 reviews)
Author: Lisleapex

PWM switching IC

5,078 Effective Inventory

NCP81109FMNTXG

Effective Inventory5,078

PWM switching IC

Manufacturer Part # : NCP81109FMNTXG
Package/Case: VFQFN-48
Brand: Onsemi
Product Categories : DC DC Switching Controllers
Series : NCP81109

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NCP81109FMNTXG DataSheet

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NCP81109FMNTXG Details

The NCP81109FMNTXG is a high-performance dual N-channel MOSFET driver from ON Semiconductor, designed for driving MOSFETs in various applications. This driver features both high and low-side drive capabilities to enhance switching performance. With its flexible design, it ensures efficient control of power management circuits used in DC-DC converters and other power applications.

Pinout

1 (BOOT): Bootstrap capacitor connection to ensure proper voltage level for high-side driver.
2 (HO): High-Side Gate Driver Output
3 (VS): High-Side Source Connection
4 (SW): Switch node connection
5 (LO): Low-Side Gate Driver Output
6 (GND): Ground
7 (VIN): Supply Voltage Input
8 (CS): Current Sense Input

(Tip: For detailed pinout information, please refer to the corresponding datasheet.)

Key Features

Dual Driver Capability: Supports both high-side and low-side MOSFET drive.
High Efficiency: Optimized for superior switching performance to enhance overall efficiency.
Built-In Bootstrap Circuit: Incorporates a bootstrap circuit for the high-side driver operation.
Wide Voltage Range: Operates effectively with a broad supply voltage range of 4.5V to 13.2V.
Fast Switching Speed: Designed for high-speed operation to minimize switching losses.

Application

DC-DC Converters: Ideal for synchronous rectification in DC-DC converter applications.
Power Management: Used in power management circuits for efficient energy conversion.
Motor Drive Circuits: Suitable for driving MOSFETs in motor control applications.

Where to Use

The NCP81109FMNTXG is perfect for applications that require efficient power control and management, such as in DC-DC converters and motor control circuits where high performance and reliability are essential.

How to Use

Connect the NCP81109FMNTXG to your circuit by wiring the VIN pin to the power supply and GND to ground. The HO and LO pins should be connected to the respective MOSFET gates for driving. Proper arrangement of the bootstrap capacitor and appropriate selection of the supply voltage will ensure optimal performance. For detailed usage instructions, refer to the datasheet.

Application Circuit

The application circuit diagram for the NCP81109FMNTXG illustrates how to connect the MOSFET driver in your power management circuit. It includes connections for power supply, ground, and control pins, ensuring reliable operation and effective MOSFET driving.

(Tip: For detailed circuit diagram connections and usage guide, refer to the datasheet.)

Equivalents

NCP81110: A similar dual MOSFET driver with comparable features and performance.
IRS2003: An alternative high/low-side driver suitable for similar applications.

Complementary

The NCP81109FMNTXG can be complemented by the NCP81105, which offers additional features and improvements in low-side driving performance.

When selecting complementary devices, ensure that their specifications align with your application requirements for compatibility and optimal performance.

Frequently Asked Questions

Q: What is the maximum voltage range for the NCP81109FMNTXG?

A: The NCP81109FMNTXG can operate with a supply voltage range from 4.5V to 13.2V. Please refer to the datasheet for additional specifications.

Q: Can this driver be used for high-frequency applications?

A: Yes, the NCP81109FMNTXG is designed for fast switching speeds, making it suitable for high-frequency applications like DC-DC converters.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Product Category !	Switching Controllers	Topology	Buck
Number of Outputs	1 Output	Switching Frequency !	500 kHz to 1.2 MHz
Input Voltage	5 V to 20 V	Output Voltage	0 V to 2.3 V
Output Current !	14 A	Minimum Operating Temperature	- 10 C
Maximum Operating Temperature !	+ 100 C	Mounting Style	SMD/SMT
Brand	onsemi	Moisture Sensitive	Yes
Product Type !	Switching Controllers	Shutdown	Shutdown
Factory Pack Quantity	2500	Subcategory	PMIC - Power Management ICs
Type	Switching Regulator

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

Preliminary Specification NCP81109FMNTXG PDF Download

FAQs

What is NCP81109FMNTXG?

The NCP81109FMNTXG is a synchronous buck converter IC (integrated circuit) developed by ON Semiconductor. It is designed for high-efficiency power conversion in various applications such as computing, networking, and consumer electronics.

How Does NCP81109FMNTXG Work?

The NCP81109FMNTXG operates by converting a higher input voltage to a lower output voltage with high efficiency. It utilizes synchronous rectification to minimize power losses and improve overall efficiency. The IC includes features like programmable soft-start, overcurrent protection, and thermal shutdown for reliable operation.

How Many Pins does NCP81109FMNTXG have and What are the Functions of the Pinout Configuration?

The NCP81109FMNTXG is packaged in a compact 5 mm x 5 mm QFN (Quad Flat No-Lead) package. The pinout configuration typically includes:

VIN: Input voltage pin.
GND: Ground pin.
SW: Switch node or power switch pin.
PGND: Power ground pin for the internal circuitry.
FB: Feedback pin for output voltage regulation.
EN: Enable pin for turning the device on/off.
COMP: Compensation pin for loop stability.
SS: Soft-start pin for controlling the startup slew rate.

What are the Pros and Cons of NCP81109FMNTXG?

Pros:

High Efficiency: Achieves high efficiency through synchronous rectification.
Compact Package: Comes in a small QFN package for space-constrained designs.
Feature-Rich: Includes protection features like overcurrent and thermal shutdown.
Programmable Features: Offers programmable soft-start and other parameters for flexibility.

Cons:

External Components: May require additional external components for certain applications.
Complex Design: Requires careful PCB layout and consideration of thermal management.

Are There Any Equivalents/Alternatives to NCP81109FMNTXG for Recommendation?

The LT8614 from Analog Devices is a comparable synchronous buck converter.
Alternatives to the NCP81109FMNTXG include the TPS62175 from Texas Instruments and the MP2451 from Monolithic Power Systems.