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MAX6643LBFAEE from MAXIM,MAXIM - Dallas Semiconductor

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MAX6643LBFAEE

Manufacturer: MAXIM

Automatic PWM Fan-Speed Controllers with Overtemperature Output

Partnumber Manufacturer Quantity Availability
MAX6643LBFAEE MAXIM 19 In Stock

Description and Introduction

Automatic PWM Fan-Speed Controllers with Overtemperature Output The MAX6643LBFAEE is a temperature sensor and fan-speed controller manufactured by Maxim Integrated. Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Maxim Integrated  
- **Part Number:** MAX6643LBFAEE  
- **Package:** 16-QSOP (0.154", 3.90mm Width)  
- **Operating Voltage Range:** 3V to 5.5V  
- **Temperature Measurement Range:** -40°C to +125°C  
- **Accuracy:** ±1°C (for +60°C to +100°C)  
- **Interface:** SMBus/I²C-Compatible  
- **Resolution:** 0.125°C (9-bit ADC)  
- **Fan Control:** PWM Output (Programmable Duty Cycle)  
- **Supply Current:** 1mA (Typical)  

### **Descriptions:**
- The MAX6643LBFAEE is a high-accuracy temperature sensor with an integrated fan-speed controller.  
- It monitors the temperature of a remote thermal diode (e.g., CPU) and an internal sensor.  
- The device provides automatic fan-speed control based on temperature thresholds.  
- It communicates via an SMBus/I²C interface for configuration and data readout.  

### **Features:**
- **Dual Temperature Monitoring:** Measures both remote diode and internal temperatures.  
- **Programmable Fan Control:** Adjusts fan speed via PWM output.  
- **High Accuracy:** ±1°C accuracy for critical temperature ranges.  
- **Low Power Consumption:** Operates with minimal current draw.  
- **SMBus/I²C Interface:** Allows easy integration with host systems.  
- **Thermal Alarm Output:** Provides overtemperature alerts.  
- **Wide Operating Range:** Supports -40°C to +125°C.  

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

Application Scenarios & Design Considerations

Automatic PWM Fan-Speed Controllers with Overtemperature Output

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