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MC34161D from ON,ON Semiconductor

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MC34161D

Manufacturer: ON, MOTOROLA, MOT

UNIVERSAL VOLTAGE MONITORS
Partnumber Manufacturer Quantity Availability
MC34161D ON, MOTOROLA, MOT 1048 In Stock

Description and Introduction

UNIVERSAL VOLTAGE MONITORS The MC34161D is a universal voltage monitor manufactured by ON Semiconductor (formerly part of Motorola, hence the "MOT" designation).  

### **Manufacturer:**  
- ON Semiconductor (originally Motorola)  

### **Specifications:**  
- **Type:** Universal Voltage Monitor  
- **Package:** SOIC-8  
- **Operating Voltage Range:** 1.8V to 40V  
- **Reference Voltage:** 2.54V (typical)  
- **Hysteresis:** Adjustable  
- **Output Type:** Open-Collector  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
The MC34161D is designed to monitor over/under-voltage conditions in power supply systems. It features an internal reference and two comparators with hysteresis to prevent oscillations near the threshold.  

### **Features:**  
- Wide operating voltage range (1.8V to 40V)  
- Adjustable hysteresis for noise immunity  
- Open-collector output for flexible interfacing  
- Low standby current (typically 150µA)  
- Built-in 2.54V reference voltage  
- Suitable for battery monitoring and power supply supervision  

This information is based solely on the device's datasheet and specifications.

Application Scenarios & Design Considerations

UNIVERSAL VOLTAGE MONITORS

Alternative Part Number

  • LM393DR2G --: Dual comparator in SOIC-8 with similar supply range and open-collector output, widely available and pin-compatible for many sensing applications.
  • TLV3011DCKR --: Low-power comparator with integrated reference in small package, suitable replacement when a reference and comparator function are needed.
  • LM2903DR --: Industry-standard dual differential comparator in SOIC-8, broad supply range and low cost, commonly used as a functional substitute.
  • MC33161D --: Same function family voltage detector from ON Semiconductor (successor of Motorola), similar pinout and specifications, widely available.
  • TL7705ACP --: Voltage supervisor/detector IC with comparable supply monitoring function, different series and manufacturer, good drop-in candidate after checking thresholds.
  • MAX809SEUR --: Low-cost voltage supervisor in SOT23, different naming and package, suitable alternative when board space allows and threshold matches.
  • MCP6541T-I/OT --: Single low-power comparator with push-pull output, good functional substitute when package and threshold flexibility are acceptable.

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