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UC3844DX from FSC,Fairchild Semiconductor

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UC3844DX

Manufacturer: FSC

SMPS Controller

Partnumber Manufacturer Quantity Availability
UC3844DX FSC 1999 In Stock

Description and Introduction

SMPS Controller The UC3844DX is a high-performance current-mode PWM controller manufactured by FSC (Fairchild Semiconductor Corporation).  

### **Specifications:**  
- **Topology:** Current-mode PWM controller  
- **Operating Frequency:** Up to 500 kHz  
- **Output Drive Current:** ±1A (peak)  
- **Supply Voltage Range:** 8.5V to 30V  
- **Under-Voltage Lockout (UVLO):** 8.4V (on) / 7.6V (off)  
- **Duty Cycle Range:** 0% to 100%  
- **Error Amplifier Bandwidth:** 1 MHz  
- **Package:** SOIC-14  

### **Descriptions and Features:**  
- Designed for offline and DC-DC converter applications.  
- Provides precise duty cycle control with current-mode operation.  
- Features an adjustable oscillator for frequency control.  
- Includes a high-gain error amplifier for tight voltage regulation.  
- Built-in soft-start functionality for controlled startup.  
- Internal reference trimmed to ±1% accuracy.  
- Protection features include cycle-by-cycle current limiting and undervoltage lockout.  
- Suitable for flyback, forward, and boost converter designs.  

This information is based solely on the manufacturer's datasheet.

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