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UC3843AD8 from ON,ON Semiconductor

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UC3843AD8

Manufacturer: ON

Current Mode PWM Controller

Partnumber Manufacturer Quantity Availability
UC3843AD8 ON 5 In Stock

Description and Introduction

Current Mode PWM Controller The UC3843AD8 is a current-mode PWM controller manufactured by ON Semiconductor.  

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

### **Descriptions:**  
The UC3843AD8 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:**  
- Adjustable frequency operation  
- Automatic feed-forward compensation  
- Latching PWM for cycle-by-cycle current limiting  
- Under-voltage lockout (UVLO) with hysteresis  
- Low startup current (<1mA)  
- High-current totem-pole output  

This information is based on the manufacturer's datasheet.

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