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MAX6657 from MAX,MAXIM - Dallas Semiconductor

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MAX6657

Manufacturer: MAX, MAXIM

±1°C, SMBus-Compatible Remote/Local Temperature Sensors with Overtemperature Alarms

Partnumber Manufacturer Quantity Availability
MAX6657 MAX, MAXIM 704 In Stock

Description and Introduction

±1°C, SMBus-Compatible Remote/Local Temperature Sensors with Overtemperature Alarms The MAX6657 is a temperature sensor and fan-speed controller manufactured by Maxim Integrated. Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Specifications:**  
- **Temperature Measurement Range:** -55°C to +125°C  
- **Temperature Accuracy:** ±1°C (typical) from +60°C to +100°C  
- **Supply Voltage Range:** 3.0V to 5.5V  
- **Fan Control Output:** PWM (Pulse-Width Modulation)  
- **Fan Tachometer Input:** Supports 2- or 3-wire fans  
- **Interface:** SMBus/I²C-compatible (up to 400kHz)  
- **Resolution:** 0.125°C (temperature measurement)  
- **Operating Temperature Range:** -40°C to +125°C  

### **Descriptions:**  
The MAX6657 is a high-precision digital temperature sensor and fan controller designed for monitoring and regulating system cooling. It integrates temperature sensing with fan-speed control to optimize thermal management in electronic systems. The device communicates via SMBus/I²C, allowing system controllers to read temperature data and adjust fan speeds dynamically.  

### **Features:**  
- **Integrated Temperature Sensor and Fan Controller**  
- **Supports Multiple Fan Types (2- or 3-wire)**  
- **Programmable PWM Fan-Speed Control**  
- **Automatic Fan-Speed Adjustment Based on Temperature**  
- **Alarm Output for Overtemperature Conditions**  
- **Low Power Consumption**  
- **Small Form Factor (8-Pin µMAX Package)**  
- **Software-Configurable for Custom Thermal Management**  

This information is strictly based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

±1°C, SMBus-Compatible Remote/Local Temperature Sensors with Overtemperature Alarms

Alternative Part Number

  • LM99 --: Remote diode temperature sensor with SMBus interface, functionally similar to the MAX6657 for CPU/system thermal monitoring.
  • ADT7461 --: Remote/local temperature monitor with SMBus and programmable limits, a common drop-in style alternative for fan control and thermal sensing.
  • EMC1403 --: Multi-channel temperature sensor with SMBus interface, suitable replacement for system thermal monitoring applications.

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