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UC3526AJ from UC

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UC3526AJ

Manufacturer: UC

Regulating Pulse Width Modulators

Partnumber Manufacturer Quantity Availability
UC3526AJ UC 23 In Stock

Description and Introduction

Regulating Pulse Width Modulators The UC3526AJ is a high-performance PWM controller manufactured by Unitrode (now part of Texas Instruments). Below are the factual details about the part:

### **Manufacturer:**  
- **Unitrode Corporation** (acquired by Texas Instruments).  

### **Specifications:**  
- **Type:** Current Mode PWM Controller.  
- **Topology:** Supports flyback, forward, push-pull, and other switching power supply designs.  
- **Operating Frequency:** Up to 500 kHz.  
- **Output Drive:** Dual totem-pole outputs (sink/source capability).  
- **Voltage Supply Range:** 8V to 35V.  
- **Duty Cycle Range:** 0% to 100%.  
- **Current Sensing:** Precision current sense comparator with adjustable threshold.  
- **Soft-Start:** Programmable soft-start feature.  
- **Error Amplifier:** Wide bandwidth error amplifier for feedback control.  
- **Protection Features:**  
  - Under-voltage lockout (UVLO).  
  - Cycle-by-cycle current limiting.  
  - Over-voltage protection (OVP).  

### **Descriptions:**  
- The UC3526AJ is designed for high-efficiency power supply applications, providing precise control over switching regulators.  
- It integrates critical functions like PWM generation, error amplification, and protection mechanisms in a single IC.  
- Suitable for offline and DC-DC converter applications.  

### **Features:**  
- **Dual Outputs:** Allows control of two power switches (e.g., in push-pull or half-bridge configurations).  
- **Adjustable Dead-Time:** Prevents shoot-through in bridge topologies.  
- **Synchronization Capability:** Can sync to an external clock.  
- **Low Standby Current:** Enhances efficiency in standby modes.  
- **Temperature Stability:** Designed for reliable operation across industrial temperature ranges.  

For exact electrical characteristics and application notes, refer to the official datasheet from Texas Instruments (formerly Unitrode).

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