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UC3524D from UNITRODE

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UC3524D

Manufacturer: UNITRODE

Advanced Regulating Pulse Width Modulators

Partnumber Manufacturer Quantity Availability
UC3524D UNITRODE 20 In Stock

Description and Introduction

Advanced Regulating Pulse Width Modulators The UC3524D is a pulse width modulation (PWM) controller manufactured by UNITRODE. Below are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Input Voltage Range:** 8V to 40V  
- **Operating Frequency Range:** Up to 300kHz  
- **Output Current (Per Channel):** 100mA (sink/source)  
- **Reference Voltage:** 5V (±1%)  
- **Duty Cycle Range:** 0% to 45% (adjustable)  
- **Operating Temperature Range:** 0°C to +70°C  

### **Descriptions:**  
- The UC3524D is a fixed-frequency PWM controller designed for power supply regulation.  
- It includes an on-board oscillator, error amplifier, PWM comparator, and dual alternating output drivers.  
- Suitable for push-pull, flyback, and forward converter topologies.  

### **Features:**  
- **Adjustable Dead-Time Control** – Prevents shoot-through in push-pull configurations.  
- **Dual Output Drivers** – Provides alternating drive signals for push-pull applications.  
- **Undervoltage Lockout (UVLO)** – Ensures proper operation above a minimum input voltage.  
- **Soft-Start Capability** – Reduces inrush current during startup.  
- **Current Limiting Protection** – Enhances system reliability.  
- **Synchronization Capability** – Allows external clock synchronization.  

This information is based on UNITRODE's official documentation for the UC3524D.

Application Scenarios & Design Considerations

Advanced Regulating Pulse Width Modulators
Partnumber Manufacturer Quantity Availability
UC3524D TI 1516 In Stock

Description and Introduction

Advanced Regulating Pulse Width Modulators The UC3524D is a pulse-width modulation (PWM) controller IC manufactured by Texas Instruments (TI). Below are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Manufacturer:** Texas Instruments (TI)  
- **Type:** PWM Controller  
- **Topology:** Buck, Boost, Flyback, Forward  
- **Output Type:** Dual, Complementary  
- **Output Current:** 100mA (sink/source per channel)  
- **Switching Frequency:** Up to 500kHz  
- **Supply Voltage (VCC):** 8V to 40V  
- **Reference Voltage:** 5V (±1%)  
- **Duty Cycle Range:** 0% to 45% (adjustable)  
- **Operating Temperature Range:** -25°C to +85°C  
- **Package:** SOIC-16  

### **Descriptions:**  
The UC3524D is a fixed-frequency PWM controller designed for DC-DC converter and power supply applications. It provides precise voltage regulation through adjustable duty cycle control. The IC includes an internal oscillator, error amplifier, PWM comparator, and dual totem-pole outputs for driving power transistors.  

### **Features:**  
- **Adjustable Frequency:** Set via external resistor and capacitor.  
- **Error Amplifier:** High-gain op-amp for feedback control.  
- **Soft-Start Capability:** Reduces inrush current at startup.  
- **Current Limiting:** Built-in protection against overloads.  
- **Undervoltage Lockout (UVLO):** Ensures proper operation under low supply conditions.  
- **Synchronization Capability:** Allows synchronization with an external clock.  
- **Dual Outputs:** Push-pull or single-ended drive configurations.  

This information is based on the manufacturer's datasheet for the UC3524D.

Application Scenarios & Design Considerations

Advanced Regulating Pulse Width Modulators

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