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UC3844BDG from ON,ON Semiconductor

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UC3844BDG

Manufacturer: ON

High Performance Current Mode Controllers

Partnumber Manufacturer Quantity Availability
UC3844BDG ON 3500 In Stock

Description and Introduction

High Performance Current Mode Controllers The UC3844BDG is a high-performance current-mode PWM controller manufactured by ON Semiconductor.  

### **Specifications:**  
- **Topology:** Current-mode PWM controller  
- **Operating Frequency:** Up to 500 kHz  
- **Output Drive Current:** ±1A (peak)  
- **Supply Voltage (VCC):** 8.5V to 30V  
- **Duty Cycle Range:** 0% to 50% (adjustable)  
- **Reference Voltage:** 5V (±1%)  
- **Low Startup Current:** <1mA  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC-8  

### **Descriptions and Features:**  
- Designed for offline and DC-DC converter applications.  
- Features an adjustable oscillator for precise frequency control.  
- Includes a trimmed bandgap reference for stable operation.  
- Current-mode operation improves transient response and simplifies loop compensation.  
- Built-in under-voltage lockout (UVLO) with hysteresis for reliable startup.  
- High-current totem-pole output for driving power MOSFETs efficiently.  
- Includes cycle-by-cycle current limiting for enhanced protection.  
- Low power consumption in standby mode.  

This controller is widely used in power supply designs, including flyback, forward, and boost converters.

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