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UC3843AL-S08-R from UTC

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UC3843AL-S08-R

Manufacturer: UTC

CURRENT MODE PWM CONTROL CIRCUITS

Partnumber Manufacturer Quantity Availability
UC3843AL-S08-R,UC3843ALS08R UTC 1979 In Stock

Description and Introduction

CURRENT MODE PWM CONTROL CIRCUITS The UC3843AL-S08-R is a current-mode PWM controller manufactured by UTC (Unisonic Technologies). Below are its specifications, descriptions, and features based on Ic-phoenix technical data files:  

### **Specifications:**  
- **Manufacturer:** UTC (Unisonic Technologies)  
- **Package:** SO-8 (Small Outline 8-pin)  
- **Type:** Current-Mode PWM Controller  
- **Operating Voltage Range:** 8.5V to 30V  
- **Output Drive Current:** ±1A (Peak)  
- **Switching Frequency:** Up to 500kHz  
- **Duty Cycle Range:** 0% to 100%  
- **Reference Voltage:** 5V (±1% tolerance)  
- **Operating Temperature Range:** -20°C to +85°C  

### **Descriptions:**  
The UC3843AL-S08-R is a fixed-frequency PWM controller designed for DC-DC converter applications. It provides precise voltage regulation and current limiting, making it suitable for power supplies, battery chargers, and SMPS (Switched-Mode Power Supplies).  

### **Features:**  
- **Current-Mode Control:** Improves loop response and simplifies compensation.  
- **Undervoltage Lockout (UVLO):** Ensures proper operation within the voltage range.  
- **Adjustable Oscillator Frequency:** Set by external timing components.  
- **Error Amplifier:** High-gain bandwidth for accurate feedback control.  
- **Pulse-by-Pulse Current Limiting:** Protects against overload conditions.  
- **Soft-Start Capability:** Reduces inrush current during startup.  
- **Low Startup Current:** Typically 0.5mA.  

This information is strictly based on the manufacturer's datasheet and technical documentation.

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