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MAX643ACSA from MAX,MAXIM - Dallas Semiconductor

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MAX643ACSA

Manufacturer: MAX, MAXIM

+15V fixed output, 10W CMOS step-up switching regulator. 5% output accuracy

Partnumber Manufacturer Quantity Availability
MAX643ACSA MAX, MAXIM 56 In Stock

Description and Introduction

+15V fixed output, 10W CMOS step-up switching regulator. 5% output accuracy The MAX643ACSA is a voltage detector manufactured by Maxim Integrated. Below are the factual details about the part:  

### **Manufacturer:**  
- **MAXIM INTEGRATED**  

### **Specifications:**  
- **Type:** Voltage Detector  
- **Package:** 8-SOIC (Small Outline Integrated Circuit)  
- **Output Type:** Active-Low, Open-Drain  
- **Number of Channels:** 1  
- **Threshold Voltage Options:** Factory-Set (e.g., 2.63V, 3.08V, 4.38V, etc.)  
- **Accuracy:** ±1.5% (typical)  
- **Operating Voltage Range:** 1.2V to 5.5V  
- **Quiescent Current:** 5µA (typical)  
- **Temperature Range:** -40°C to +85°C  
- **Reset Timeout Period:** Adjustable or fixed (depending on variant)  

### **Descriptions:**  
- The MAX643ACSA is a low-power voltage detector designed to monitor system voltage levels.  
- It provides an active-low reset signal when the supply voltage drops below a preset threshold.  
- The open-drain output allows flexibility in interfacing with different logic levels.  
- Suitable for battery-powered and portable applications due to its low quiescent current.  

### **Features:**  
- **Low Power Consumption:** 5µA typical supply current  
- **Precision Threshold:** ±1.5% accuracy over temperature  
- **Wide Operating Range:** 1.2V to 5.5V  
- **Open-Drain Output:** Compatible with multiple logic levels  
- **Small Package:** 8-pin SOIC for space-constrained designs  
- **Industrial Temperature Range:** -40°C to +85°C  

For exact threshold voltage options and additional specifications, refer to the official datasheet from Maxim Integrated.

Application Scenarios & Design Considerations

+15V fixed output, 10W CMOS step-up switching regulator. 5% output accuracy

Alternative Part Number

  • LTC1250CS8 --: Comparable low-power comparator in an 8-pin SOIC package with similar supply voltage range and open-drain output, suitable as a functional replacement.
  • TLV3011IDBVR --: Low-power comparator with open-drain output and wide supply range, available in small packages; good alternative when board space and power consumption matter.
  • LM393DR --: Industry-standard dual comparator with open-collector output and wide supply range; widely available and cost-effective, though pinout and package may require layout adjustment.
  • LTC1540CS8 --: Comparable micropower comparator in SO-8 with similar supply range and open-drain output, direct functional substitute.

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