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UCC2570N from TI,Texas Instruments

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UCC2570N

Manufacturer: TI

Low Power Pulse Width Modulator

Partnumber Manufacturer Quantity Availability
UCC2570N TI 478 In Stock

Description and Introduction

Low Power Pulse Width Modulator The UCC2570N is a pulse width modulation (PWM) controller manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Output Type:** PWM Controller  
- **Topology:** Flyback, Forward  
- **Frequency Range:** Up to 500 kHz  
- **Duty Cycle:** Adjustable  
- **Operating Voltage:** Typically 8V to 35V  
- **Output Current:** Capable of driving external MOSFETs or bipolar transistors  
- **Package:** PDIP-8 (Plastic Dual In-Line Package)  

### **Descriptions:**  
The UCC2570N is a high-performance PWM controller designed for power supply applications. It provides precise control for switching power supplies in flyback and forward converter topologies. The device supports adjustable frequency and duty cycle, making it suitable for various power conversion needs.  

### **Features:**  
- Adjustable oscillator frequency  
- Soft-start capability  
- Under-voltage lockout (UVLO) protection  
- Error amplifier for feedback control  
- Current limiting functionality  
- High noise immunity  

This information is based solely on the manufacturer's specifications. For detailed application notes or design considerations, refer to the official TI datasheet.

Partnumber Manufacturer Quantity Availability
UCC2570N UC 50 In Stock

Description and Introduction

Low Power Pulse Width Modulator The UCC2570N is a high-performance current-mode PWM controller manufactured by Texas Instruments (formerly Unitrode).  

### **Key Specifications:**  
- **Topology:** Current-mode PWM controller  
- **Input Voltage Range:** Up to 30V  
- **Operating Frequency:** Adjustable up to 500kHz  
- **Output Drive:** Totem-pole output (suitable for driving power MOSFETs)  
- **Duty Cycle Range:** 0% to 100%  
- **Current Sensing:** Cycle-by-cycle current limiting  
- **Package:** 8-Pin PDIP (Plastic Dual In-Line Package)  

### **Features:**  
- **Precision Reference:** 5V ±1% internal reference voltage  
- **Soft-Start Function:** Reduces inrush current during startup  
- **Undervoltage Lockout (UVLO):** Ensures proper operation under low input voltage conditions  
- **Synchronization Capability:** Can be synchronized to an external clock  
- **Error Amplifier:** Provides feedback loop control  
- **Low Startup Current:** Typically 0.5mA  

The UCC2570N is commonly used in switch-mode power supplies (SMPS), DC-DC converters, and offline power supplies.  

Would you like additional details on any specific aspect?

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