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UC285T-3 from UC

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UC285T-3

Manufacturer: UC

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Partnumber Manufacturer Quantity Availability
UC285T-3,UC285T3 UC 45 In Stock

Description and Introduction

1 The UC285T-3 is a power supply controller manufactured by Unitrode (now part of Texas Instruments). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Manufacturer:**  
- Unitrode (now Texas Instruments)  

### **Specifications:**  
- **Type:** High-performance PWM controller  
- **Topology:** Supports flyback, forward, push-pull, and bridge configurations  
- **Operating Frequency:** Adjustable up to 500 kHz  
- **Output Drive:** Totem-pole output (1.5A peak current)  
- **Input Voltage Range:** 8.5V to 35V  
- **Reference Voltage:** 5.1V (±1%)  
- **Duty Cycle Range:** 0% to 100%  
- **Startup Current:** Typically 0.5mA  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
- The UC285T-3 is a fixed-frequency current-mode PWM controller designed for high-efficiency power supply applications.  
- It includes features for precise regulation, soft-start, and overcurrent protection.  
- The device is optimized for offline and DC-DC converters.  

### **Features:**  
- **Current-Mode Control:** Improves loop response and simplifies compensation.  
- **Programmable Soft-Start:** Reduces inrush current at startup.  
- **Under-Voltage Lockout (UVLO):** Ensures proper operation within voltage limits.  
- **Cycle-by-Cycle Current Limiting:** Protects against overloads.  
- **Sync Capability:** Allows synchronization to an external clock.  
- **Low Power Consumption:** Suitable for energy-efficient designs.  

For exact details, refer to the official datasheet from Texas Instruments.

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