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UC3843BD1R2 from ON,ON Semiconductor

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UC3843BD1R2

Manufacturer: ON

High Performance Current Mode Controller

Partnumber Manufacturer Quantity Availability
UC3843BD1R2 ON 880 In Stock

Description and Introduction

High Performance Current Mode Controller The UC3843BD1R2 is a high-performance current-mode PWM controller manufactured by ON Semiconductor.  

### **Specifications:**  
- **Topology:** Current-mode PWM controller  
- **Input Voltage (VCC):** 8.5V to 30V (operating range)  
- **Output Drive Current:** ±1A (peak)  
- **Switching Frequency:** Up to 500kHz  
- **Duty Cycle Range:** 0% to 100%  
- **Reference Voltage:** 5V (±1% tolerance)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC-8  

### **Descriptions:**  
The UC3843BD1R2 is designed for DC-DC converter applications, providing precise control for switching power supplies. It features an oscillator, error amplifier, current sensing comparator, and a totem-pole output stage.  

### **Features:**  
- **Current-Mode Operation:** Improves loop response and simplifies compensation.  
- **Under-Voltage Lockout (UVLO):** Ensures proper operation within the specified voltage range.  
- **Cycle-by-Cycle Current Limiting:** Enhances system protection.  
- **Internal Trimmed Reference:** 5V with tight tolerance (±1%).  
- **Low Start-Up Current:** Typically 0.5mA.  
- **High-Current Totem-Pole Output:** Optimized for driving power MOSFETs.  

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

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