What is the Additional Feature ?

Name: NCP81258MNTBG
Brand: ON Semiconductor
SKU: NCP81258MNTBG
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 NCP81258MNTBG

Part No.:: NCP81258MNTBG

Manufacturer:: ON Semiconductor

Package:: 8-VFDFN Exposed Pad

Datasheet:: NCP81258MNTBG.pdf

Description:: IC GATE DRVR HALF-BRIDGE 8DFN

In Stock:: 2908

Quantity:: Add To Cart

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NCP81258MNTBG Specifications

Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
-
ProductStatus:
Active
DrivenConfiguration:
Half-Bridge
ChannelType:
Synchronous
NumberofDrivers:
2
GateType:
N-Channel MOSFET
Voltage-Supply:
4.5V ~ 13.2V
LogicVoltage-VILVIH:
0.7V, 3.4V
Current-PeakOutput(SourceSink):
-
InputType:
Non-Inverting
HighSideVoltage-Max(Bootstrap):
35 V
Rise/FallTime(Typ):
16ns, 11ns
OperatingTemperature:
-40°C ~ 150°C (TJ)
MountingType:
Surface Mount

NCP81258MNTBG this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including NCP81258MNTBG price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for NCP81258MNTBG to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

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NCP81258MNTBG information

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NCP81258MNTBG Typical application Circuitry

NCP81258MNTBG

NCP81258MNTBG is a multiphase PWM controller designed by ON Semiconductor, primarily used for powering high-performance CPUs and GPUs in computing and gaming applications. This device facilitates precise voltage regulation and power management for processors, enhancing system performance and reliability.

Application Scenario: High-Performance Computing Systems

A typical application for the NCP81258MNTBG is in the voltage regulation module (VRM) circuit of a motherboard, providing stable power to high-performance CPUs in desktop or server computing systems.

Parameter Features

- Multiphase Operation: Supports multiple phases for efficient power distribution and thermal management.

- Precision Voltage Regulation: Ensures tight voltage regulation for sensitive CPU and GPU operations.

- Adaptive Voltage Positioning (AVP): Optimizes transient response and minimizes voltage deviation under load changes.

- Programmable Features: Includes programmable switching frequency, phase shedding, and overcurrent protection for flexible system design.

Detailed Circuit Connection for CPU Power Supply

Power Stage Setup

Configure each phase of the NCP81258MNTBG by connecting its respective phase outputs (PHASE pins) to the gates of the power stage MOSFETs. This setup ensures efficient power distribution and thermal management across the CPU's power delivery network.

Voltage Feedback and Regulation

Connect the voltage feedback pin (VFB) of the NCP81258MNTBG to the CPU power rail. This connection is crucial for the controller to monitor the output voltage and adjust the PWM duty cycle to maintain the desired voltage level at the CPU.

Bootstrapping Capacitors

Attach bootstrapping capacitors to the BOOT pins associated with each phase. These capacitors provide the necessary gate drive voltage for the high-side MOSFETs, ensuring efficient switching and minimizing power losses.

Current Sensing and Protection

Implement current sensing for each phase by connecting resistors from the source of the low-side MOSFETs to the ISNS pins of the NCP81258MNTBG. This configuration enables accurate current monitoring and overcurrent protection, safeguarding the CPU and power delivery components.

Design Considerations

When designing a VRM with the NCP81258MNTBG for a high-performance CPU, several key aspects must be considered:

- Phase Configuration: Determine the optimal number of phases based on the CPU's power requirements and thermal considerations, ensuring efficient power delivery and heat distribution.

- Component Selection: Choose high-quality MOSFETs and inductors that match the NCP81258MNTBG's specifications to optimize efficiency and minimize losses.

- Layout Considerations: Carefully plan the PCB layout to minimize the loop area for each phase, reducing electromagnetic interference (EMI) and improving power integrity.

- Thermal Management: Assess the thermal performance of the VRM, including the NCP81258MNTBG and power stage components, to implement adequate cooling solutions and maintain optimal operating temperatures.

By carefully integrating the NCP81258MNTBG into the VRM design of computing systems, designers can achieve a high-performance, efficient, and reliable power supply for CPUs, supporting the demands of advanced computing and gaming applications.

NCP81258MNTBG FAQ

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3. Are the NCP81258MNTBG price and inventory displayed accurate?

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6. What is the process for return or replacement of NCP81258MNTBG?

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 NCP81258MNTBG we delivered, we will accept the replacement or return of the NCP81258MNTBG 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 NCP81258MNTBG.

(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