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MAX6646MUA+ from MAX,MAXIM - Dallas Semiconductor

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MAX6646MUA+

Manufacturer: MAX, MAXIM

+145°C Precision SMBus-Compatible Remote/Local Sensors with Overtemperature Alarms

Partnumber Manufacturer Quantity Availability
MAX6646MUA+,MAX6646MUA MAX, MAXIM 4631 In Stock

Description and Introduction

+145°C Precision SMBus-Compatible Remote/Local Sensors with Overtemperature Alarms The MAX6646MUA+ is a precision dual remote/local temperature sensor manufactured by Maxim Integrated.  

### **Specifications:**  
- **Manufacturer:** Maxim Integrated  
- **Package:** 8-pin μMAX  
- **Supply Voltage Range:** 3V to 5.5V  
- **Temperature Measurement Range:** -55°C to +125°C (remote), -40°C to +125°C (local)  
- **Accuracy:** ±1°C (local), ±1°C (remote, diode-connected transistor)  
- **Resolution:** 0.125°C  
- **Interface:** SMBus/I²C-compatible  
- **Features:**  
  - Monitors its own temperature (local) and an external diode-connected transistor (remote)  
  - Programmable overtemperature alarm thresholds  
  - Low operating current (200μA typical)  
  - SMBus alert function for overtemperature conditions  

### **Descriptions and Features:**  
The MAX6646MUA+ is designed for high-accuracy temperature monitoring in applications such as CPUs, GPUs, and power supplies. It provides digital temperature readings via an SMBus/I²C interface and includes programmable alarm thresholds for overtemperature protection. The device operates from a 3V to 5.5V supply and is available in a compact 8-pin μMAX package.  

Key features include:  
- Dual temperature sensing (local and remote)  
- High accuracy (±1°C)  
- Low power consumption  
- SMBus/I²C-compatible interface  
- Overtemperature alert functionality  

This sensor is commonly used in computing, industrial, and telecommunications applications for thermal management.  

Would you like additional details on any specific aspect?

Application Scenarios & Design Considerations

+145°C Precision SMBus-Compatible Remote/Local Sensors with Overtemperature Alarms

Alternative Part Number

  • LM89CIMM --: Remote/local temperature sensor with SMBus interface in an 8-pin MSOP package, functionally similar to the MAX6646.
  • ADT7461ARMZ --: Remote diode temperature monitor with 2-wire interface in MSOP-8, comparable accuracy and pin-compatible footprint.
  • EMC1403-A-AIZL-TR --: Multi-channel temperature sensor with SMBus in MSOP-8, suitable drop-in alternative for thermal monitoring applications.
  • LM99CIMM --: Remote/local temperature sensor with SMBus interface in an MSOP-8 package, functionally similar to the MAX6646 and widely available.
  • EMC1403-A-AIZZL --: Multi-channel temperature sensor with SMBus interface in MSOP-8, suitable drop-in alternative for thermal monitoring applications.

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