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UC2527AN from U (unitrode)

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UC2527AN

Manufacturer: U (unitrode)

Regulating Pulse Width Modulators

Partnumber Manufacturer Quantity Availability
UC2527AN U (unitrode) 25 In Stock

Description and Introduction

Regulating Pulse Width Modulators The UC2527AN is a high-performance PWM controller manufactured by Unitrode. Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Specifications:**  
- **Manufacturer:** Unitrode (now part of Texas Instruments)  
- **Type:** PWM (Pulse Width Modulation) Controller  
- **Topology:** Supports flyback, forward, push-pull, and other converter designs  
- **Operating Frequency:** Adjustable, typically up to 500 kHz  
- **Output Drive:** Dual alternating outputs (totem-pole)  
- **Output Current:** Up to 500 mA (sink/source)  
- **Supply Voltage Range:** 8V to 35V  
- **Duty Cycle Range:** 0% to 100%  
- **Error Amplifier Bandwidth:** 5 MHz  
- **Soft-Start Capability:** Adjustable  
- **Protection Features:** Under-voltage lockout (UVLO), over-current protection  

### **Descriptions:**  
The UC2527AN is a versatile PWM controller designed for switch-mode power supply applications. It provides precise control over power conversion with high efficiency and reliability. The device includes an onboard oscillator, error amplifier, and PWM comparator, making it suitable for various DC-DC converter topologies.  

### **Features:**  
- **High-Speed Operation:** Supports high switching frequencies for compact power supply designs.  
- **Dual Outputs:** Alternating outputs for push-pull and bridge configurations.  
- **Programmable Dead-Time Control:** Prevents shoot-through in half-bridge and full-bridge circuits.  
- **Synchronization Capability:** Allows synchronization with an external clock.  
- **Precision Reference:** 5.1V ±1% bandgap voltage reference for accurate regulation.  
- **Current Limiting:** Supports cycle-by-cycle current limiting for protection.  
- **Thermal Shutdown:** Protects the IC from overheating.  

This information is based on the manufacturer's datasheet and technical documentation.

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