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UCC2889D from TI/UNITRODE,Texas Instruments

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UCC2889D

Manufacturer: TI/UNITRODE

Off-line Power Supply Controller

Partnumber Manufacturer Quantity Availability
UCC2889D TI/UNITRODE 40 In Stock

Description and Introduction

Off-line Power Supply Controller The UCC2889D is a high-voltage power supply controller manufactured by Texas Instruments (TI)/Unitrode.  

### **Specifications:**  
- **Input Voltage Range:** Up to 500V (for offline applications)  
- **Operating Frequency:** Adjustable up to 250 kHz  
- **Output Drive Current:** ±1A peak  
- **Start-Up Current:** Typically 100 µA  
- **Standby Power Consumption:** <300 mW  
- **Package:** SOIC-8 (D)  

### **Descriptions:**  
The UCC2889D is a high-voltage PWM controller designed for offline power supplies. It integrates a high-voltage startup regulator, reducing the need for external bias circuits. It is optimized for low-power standby applications and supports both flyback and forward converter topologies.  

### **Features:**  
- **High-Voltage Startup:** Integrated 500V startup regulator  
- **Low Standby Power:** Enables energy-efficient designs  
- **Adjustable Frequency:** Up to 250 kHz operation  
- **Soft-Start:** Reduces inrush current  
- **Overcurrent Protection:** Cycle-by-cycle current limiting  
- **Undervoltage Lockout (UVLO):** Ensures proper startup conditions  
- **Low Operating Current:** Improves efficiency  

This information is based on the manufacturer's datasheet for the UCC2889D.

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