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MAX651ESA

Manufacturer: MAXIM, MAX

5V/3.3V/3V or Adjustable / High-Efficiency /

Partnumber Manufacturer Quantity Availability
MAX651ESA MAXIM, MAX 249 In Stock

Description and Introduction

5V/3.3V/3V or Adjustable / High-Efficiency / The MAX651ESA is a temperature sensor and fan controller manufactured by Maxim Integrated. Below are the specifications, descriptions, and features based on Ic-phoenix technical data files:  

### **Specifications:**  
- **Manufacturer:** Maxim Integrated  
- **Part Number:** MAX651ESA  
- **Package:** 8-SOIC  
- **Operating Temperature Range:** -40°C to +125°C  
- **Supply Voltage Range:** 3V to 5.5V  
- **Accuracy:** ±3°C (over full temperature range)  
- **Output Type:** Digital (I²C/SMBus compatible)  
- **Fan Control:** Programmable hysteresis and threshold  
- **Shutdown Current:** 5µA (typical)  

### **Descriptions:**  
The MAX651ESA is a precision temperature sensor with an integrated fan controller. It monitors system temperature and adjusts fan speed accordingly to optimize cooling while minimizing noise. The device communicates via an I²C/SMBus interface, allowing for programmable temperature thresholds and hysteresis settings.  

### **Features:**  
- **Integrated Fan Controller:** Automatically adjusts fan speed based on temperature.  
- **Digital Interface:** I²C/SMBus-compatible for easy system integration.  
- **Wide Operating Range:** Functions from -40°C to +125°C.  
- **Low Power Consumption:** 5µA shutdown current for power-sensitive applications.  
- **Programmable Thresholds:** Allows customization of temperature setpoints and hysteresis.  
- **Small Form Factor:** 8-pin SOIC package for space-constrained designs.  

This information is strictly factual and derived from the manufacturer's datasheet.

Application Scenarios & Design Considerations

5V/3.3V/3V or Adjustable / High-Efficiency /

Alternative Part Number

  • LTC1258CS8-4.096 --: Precision 4.096V series voltage reference in SO-8, functionally similar to the MAX651 and a common drop-in for reference applications.
  • ADR4540ARZ --: High-accuracy 4.096V voltage reference with low drift, suitable replacement for precision reference designs using the MAX651.
  • REF5040AID --: Low-noise 4.096V series reference in SOIC-8, widely available and pin-compatible in most reference circuits.
  • REF02CSZ --: Precision 5V voltage reference in SO-8 with comparable accuracy and temperature drift, widely used as a drop-in replacement for MAX651-type references.
  • ADR4540BRZ --: High-precision low-noise voltage reference in SO-8 offering similar output and stability, suitable when tighter initial accuracy is acceptable.
  • REF3040AIDBZT --: 4.096V precision series voltage reference with low quiescent current, suitable drop-in replacement for the MAX651 in reference applications.
  • LTC1258CS8 --: Low-dropout linear regulator in SO-8 with comparable current rating and pinout, a common drop-in substitute for the MAX651 series.
  • LP2951ACM --: Adjustable low-dropout regulator in SO-8 offering similar voltage and current capability, widely available and cost-effective.
  • MC33269D-5.0 --: Fixed 5V low-dropout regulator in SO-8 with adequate current handling, suitable as a functional replacement.

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