ONSEMI NCT7491RQR2G

ONSEMI NCT7491RQR2G

Manufacturer No:

NCT7491RQR2G

Manufacturer:

ONSEMI

Package:

24-SSOP (0.154, 3.90mm Width)

Description:

Remote Thermal Monitor and Fan Controller with PECI 3.0 Interface and SMBus Compatible Master

Delivery:

DHL
DHL
DHL
DHL

Payment:

DHL
DHL
DHL
DHL
DHL
DHL
DHL

In Stock :Available

Price not displayed? Please send an RFQ, and we will respond immediately.

NCT7491RQR2G information

ONSEMI NCT7491RQR2G technical specifications, attributes, parameters and parts with similar specifications to ONSEMI NCT7491RQR2G.

  • Type
  • Parameter
  • MSL Type
  • 3
  • MSL Temp (°C)
  • 260
  • Container Qty.
  • 2500
  • ICC Max (mA)
  • 5
  • T Max (°C)
  • 125
  • T Min (°C)
  • -40
  • Package Type
  • QSOP-24
  • Case Outline
  • 492B-01
  • Container Type
  • REEL
  • Data Transmission Standard
  • SMBus
  • VCC Min (V)
  • 3
  • VCC Max (V)
  • 3.6

Download datasheets and manufacturer documentation for ONSEMI NCT7491RQR2G.

Datasheet:

Package Drawing:

The NCT7491 is a two wire serially programmable hardware monitor. It can monitor 2 remote temperature zones and its own ambient temperature. A PECI 3.0 single wire interface allows the NCT7491 to monitor CPU temperatures. The NCT7491 also implements an SMBus compatible master, allowing it to read automatically from thermal sensors on the SMBus. The NCT7491 can automatically control the speed of 3 fans using PWM control, and monitor the speed of 4 fans. There are 4 analog inputs, used for measuring 12 V, 5 V, 2.5 V and Vccp channels. The NCT7491 supply voltage and PECI VTT voltage are also monitored. Each of the measured temperature, voltage and fan speed values are compared with programmable limits and if any channel is outside the programmed limit an interrupt is generated via the ALERT output pin. A THERM output is also available for fail safe thermal control. Up to 3 GPIO pins are available for digital control or signalling. Communication with the NCT7491 is accomplished via the SMBus/I2C interface which is compatible with industry standard protocols. The SMBus address is set by 2 address selection pins. The NCT7491 is available in a 24 lead QFN or QSOP package and operates over a supply range of 3.0 V to 3.6 V.

Application

  • System Thermal Management
  • PECI 3.0 Generic Interface

End Product

  • Desktop Computers
  • Servers
  • Mobile platforms

Feature

  • PECI 3.0 Master for CPU Monitoring
  • SMBus Compatible Master
  • On chip Temperature Sensor
  • 2 Remote Sensor Channels
  • Series Resistance Cancellation on Remote Sensors
  • 3 PWM Fan Control Outputs
  • 4 Tach Monitoring Input
  • PWM Automatic Fan Speed Control
  • 4 Analog Inputs for Voltage Monitoring
  • Vdd Supply Voltage Monitoring
  • PECI VTT Voltage Monitoring
  • Over temperature Outputs
  • Limit Comparison of Monitored Channels
  • SMBus Address Selection Allows up to 3 Devices
  • Meets SMBus 2.0 Electrical Specifications (fully SMBus 1.1 compliant)
  • These Devices are PbFree, Halogen Free/BFR Free and are RoHS Compliant

User Guide

PURCHASE

Please verify all part numbers, quantities, and packaging preferences before placing your order. If substitutions are acceptable, please indicate this clearly. For time-sensitive projects, confirm estimated delivery dates and stock availability in advance. Once submitted, changes or cancellations may not be possible, especially for items marked as non-cancellable/non-returnable (NCNR). For international shipments, please ensure all import documentation is complete and accurate to avoid delays.

MEANS OF PAYMENT

For your convenience, we accept multiple payment methods in USD, including PayPal, Credit Card, and Wire Transfer. Net terms may be available for qualified customers upon approval.

RFQ (REQUEST FOR QUOTATIONS)

Please ensure the part numbers and quantities are accurate and complete when submitting your RFQ.
Provide target prices and acceptable alternatives, if any, to speed up the quotation process.

IMPORTANT NOTICE

Quotations are subject to stock availability and may vary with market conditions. Prices and lead times are not guaranteed until a purchase order is confirmed. Ensure your contact details are correct to avoid delays in response.

Step1：Prepare product

Step1：Prepare product

Step2：Desiccant Protection

Step2：Desiccant Protection

Step3：Vacuum Packaging

Step3：Vacuum Packaging

Step4：Individual Package

Step4：Individual Package

Step5：Anti-collision Filling

Step5：Anti-collision Filling

Step6：Packaging Box

Step6：Packaging Box

SHIPPING COST

1. Shipping starts at $40, but some countries will exceed $40. For example (South Africa, Brazil, India, Pakistan, Israel, etc.).
2. Some specific products need to reach the minimum order quantity.
3. It may cost additional remote fees for delivery if you are in a remote area.

SHIPPING METHOD

Currently, our products are shipped through DHL, FedEx, SF, and UPS.

DELIVERY TIME

1. Once the goods are shipped, estimated delivery time depends on the shipping methods you chose: FedEx International, 5-7 business days.
2. For in-stock parts, orders normally could be shipped out within 1-2days.

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