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MAX6639FAEE from MAXIM,MAXIM - Dallas Semiconductor

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MAX6639FAEE

Manufacturer: MAXIM

2-Channel Temperature Monitor with Dual, Automatic, PWM Fan-Speed Controller

Partnumber Manufacturer Quantity Availability
MAX6639FAEE MAXIM 18 In Stock

Description and Introduction

2-Channel Temperature Monitor with Dual, Automatic, PWM Fan-Speed Controller The MAX6639FAEE is a temperature sensor and fan-speed controller manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Maxim Integrated  
- **Package:** 16-pin QSOP (QSOP-16)  
- **Operating Voltage Range:** 3.0V to 5.5V  
- **Temperature Measurement Range:** -40°C to +125°C  
- **Temperature Accuracy:** ±1°C (typical) from +60°C to +100°C  
- **Fan Control Channels:** 2  
- **Fan Speed Measurement:** Tachometer inputs for monitoring fan speed  
- **Interface:** SMBus/I²C-compatible (supports up to 400kHz)  
- **PWM Outputs:** 2 (for fan speed control)  
- **Resolution:** 0.125°C (temperature measurement)  

### **Descriptions:**
The MAX6639FAEE is designed for monitoring and controlling the temperature and fan speed in electronic systems. It integrates two temperature sensors (one remote diode sensor and an internal sensor) and provides PWM outputs to regulate fan speeds based on temperature readings. It communicates via the SMBus/I²C interface for configuration and data reporting.

### **Features:**
- **Dual Temperature Monitoring:** Measures both internal and external (remote diode) temperatures.  
- **Programmable Fan Control:** Adjusts fan speed via PWM outputs to optimize cooling and noise.  
- **High Accuracy:** ±1°C typical accuracy in critical temperature ranges.  
- **Wide Voltage Range:** Operates from 3.0V to 5.5V, suitable for various applications.  
- **Tachometer Inputs:** Monitors fan speed for fault detection.  
- **Alarm Outputs:** Provides overtemperature alerts.  
- **Low Power Consumption:** Optimized for energy-efficient systems.  
- **SMBus/I²C Interface:** Allows easy integration with system controllers.  

This device is commonly used in PCs, servers, and other electronics requiring thermal management.  

*(Note: For detailed electrical characteristics, refer to the official datasheet.)*

Application Scenarios & Design Considerations

2-Channel Temperature Monitor with Dual, Automatic, PWM Fan-Speed Controller
Partnumber Manufacturer Quantity Availability
MAX6639FAEE MAXIM Pb-free 644 In Stock

Description and Introduction

2-Channel Temperature Monitor with Dual, Automatic, PWM Fan-Speed Controller The MAX6639FAEE is a temperature sensor and fan-speed controller manufactured by Maxim Integrated (now part of Analog Devices). Below are the factual details from Ic-phoenix technical data files:

### **Manufacturer:**  
MAXIM (now part of Analog Devices)  

### **Package:**  
- **Package Type:** 16-QSOP (QSOP-16)  
- **Pb-Free:** Yes (RoHS compliant)  

### **Descriptions:**  
- The MAX6639FAEE is a high-accuracy temperature sensor with an integrated fan-speed controller.  
- It monitors the temperature of two remote diode-connected transistors (e.g., CPU or GPU) and its own die temperature.  
- It provides closed-loop fan-speed control based on temperature readings.  

### **Features:**  
- **Dual-Channel Temperature Monitoring:** Measures two remote diode temperatures (e.g., CPU, GPU) and internal die temperature.  
- **PWM Fan Control:** Supports 4-wire PWM fan control with programmable speed settings.  
- **High Accuracy:** ±1°C (local), ±3°C (remote diode).  
- **Programmable Alert Output:** Overtemperature alarm with hysteresis.  
- **I²C-Compatible Interface:** Allows communication with a microcontroller.  
- **Supply Voltage Range:** 3.0V to 5.5V.  
- **Low Power Consumption:** Typically 1mA operating current.  

This information is based solely on the manufacturer's specifications. Let me know if you need additional details.

Application Scenarios & Design Considerations

2-Channel Temperature Monitor with Dual, Automatic, PWM Fan-Speed Controller

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