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MC33129D from MOT,Motorola

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MC33129D

Manufacturer: MOT, MOTOROLA, MOTO, ON

HIGH PERFORMANCE CURRENT MODE CONTROLLERS
Partnumber Manufacturer Quantity Availability
MC33129D MOT, MOTOROLA, MOTO, ON 282 In Stock

Description and Introduction

HIGH PERFORMANCE CURRENT MODE CONTROLLERS The MC33129D is a power driver IC manufactured by Motorola. Below are its key specifications, descriptions, and features based on factual information:  

### **Specifications:**  
- **Manufacturer:** Motorola  
- **Type:** Power Driver IC  
- **Package:** SOIC-8  
- **Operating Voltage Range:** 10V to 20V  
- **Output Current:** Up to 1.5A  
- **Operating Temperature Range:** -40°C to +85°C  
- **Switching Frequency:** Adjustable  

### **Descriptions:**  
The MC33129D is a high-performance power driver IC designed for driving inductive loads such as solenoids, relays, and small motors. It integrates protection features to enhance reliability in automotive and industrial applications.  

### **Features:**  
- **High-Current Output:** Capable of driving loads up to 1.5A.  
- **Undervoltage Lockout (UVLO):** Ensures proper operation within the specified voltage range.  
- **Thermal Shutdown Protection:** Prevents damage due to overheating.  
- **Adjustable Switching Frequency:** Allows flexibility in design.  
- **Low Quiescent Current:** Improves efficiency in standby mode.  
- **Integrated Flyback Diode:** Simplifies circuit design for inductive loads.  

This information is sourced from Motorola's official documentation on the MC33129D.

Application Scenarios & Design Considerations

HIGH PERFORMANCE CURRENT MODE CONTROLLERS

Alternative Part Number

  • UC3845BD1 --: Industry-standard current-mode PWM controller in SOIC-8, functionally similar to the MC33129 and widely available from multiple sources.
  • SG3524N --: Classic PWM control IC with similar regulation and drive functions, commonly used as a drop-in style alternative in power supply designs.
  • TL494CD --: Versatile PWM controller in SOIC-16 offering comparable control-loop features and broad availability for replacement designs.
  • UC3842AN --: Industry-standard current-mode PWM controller in DIP-8, widely used as a functional substitute for Motorola MC33129 series controllers in offline power supply designs.
  • TL494CN --: Versatile fixed-frequency PWM control IC in DIP-16, broadly available and often used as a cross-reference for legacy Motorola PWM controller parts.
  • UC3843BD1 --: Current-mode PWM controller in an SO-8 package with similar control-loop architecture and supply range, widely available and pin-compatible in function.
  • UC3842BD1 --: Industry-standard current-mode PWM controller in SOIC-8, functionally similar to the MC33129D and widely available as a drop-in style replacement.
  • SG3524D --: Classic PWM control IC in SOIC-16 with comparable control-loop features, suitable for designs needing a well-established alternate source.

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