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UC3525AJ from UC

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UC3525AJ

Manufacturer: UC

Regulating Pulse Width Modulators

Partnumber Manufacturer Quantity Availability
UC3525AJ UC 6100 In Stock

Description and Introduction

Regulating Pulse Width Modulators The UC3525AJ is a pulse width modulation (PWM) controller IC manufactured by Texas Instruments. Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Texas Instruments (TI)  
- **Type:** PWM Controller IC  
- **Topology:** Push-Pull, Half-Bridge, or Full-Bridge  
- **Operating Voltage Range:** 8V to 35V  
- **Output Current (Source/Sink):** 200mA / 400mA  
- **Switching Frequency Range:** 100Hz to 500kHz  
- **Duty Cycle Range:** 0% to 49% (adjustable)  
- **Error Amplifier Bandwidth:** 1MHz  
- **Soft-Start Capability:** Yes  
- **Undervoltage Lockout (UVLO):** Yes (programmable)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 16-Pin DIP (Dual In-Line Package)  

### **Descriptions:**
The UC3525AJ is a high-performance PWM controller designed for switch-mode power supply applications. It provides precise control over power conversion with features like adjustable dead-time, soft-start, and error amplification. It is commonly used in DC-DC converters, inverters, and motor control circuits.

### **Features:**
- **Adjustable Dead-Time Control:** Prevents shoot-through in bridge configurations.  
- **Synchronizable Oscillator:** Allows synchronization with external clocks.  
- **Soft-Start Function:** Reduces inrush current during startup.  
- **Dual Output Drivers:** Supports push-pull or half-bridge configurations.  
- **Error Amplifier:** High-gain op-amp for feedback loop control.  
- **Undervoltage Lockout (UVLO):** Ensures proper operation within voltage limits.  
- **Shutdown Pin:** Allows external shutdown for fault protection.  

This IC is widely used in industrial and automotive applications due to its reliability and robust performance.

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