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UC3842ANG from ON,ON Semiconductor

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17.578ms

UC3842ANG

Manufacturer: ON

High Performance Current Mode Controllers

Partnumber Manufacturer Quantity Availability
UC3842ANG ON 150 In Stock

Description and Introduction

High Performance Current Mode Controllers The UC3842ANG is a high-performance current-mode PWM controller manufactured by ON Semiconductor. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**  
- **Manufacturer:** ON Semiconductor  
- **Type:** Current-Mode PWM Controller  
- **Package:** PDIP-8 (Plastic Dual In-Line Package)  
- **Input Voltage (VCC):** 16V (max)  
- **Output Voltage:** Adjustable via external components  
- **Switching Frequency:** Up to 500kHz  
- **Duty Cycle Range:** 0% to 100%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Start-Up Current:** < 1mA  
- **Output Drive Current:** ±1A (peak)  
- **Reference Voltage:** 5V (±1% tolerance)  

### **Descriptions:**  
The UC3842ANG is a fixed-frequency pulse-width modulation (PWM) controller designed for DC-DC converter applications. It operates in current-mode control, providing improved loop response and simplified feedback compensation. The device includes an oscillator, error amplifier, current sensing comparator, and a high-current totem-pole output for driving power MOSFETs.  

### **Features:**  
- **Current-Mode Operation:** Ensures cycle-by-cycle current limiting.  
- **Automatic Feed-Forward Compensation:** Simplifies feedback loop design.  
- **Undervoltage Lockout (UVLO):** Ensures proper start-up and shutdown.  
- **Trimmed Oscillator Discharge Current:** Provides precise frequency control.  
- **High-Current Totem-Pole Output:** Directly drives power MOSFETs.  
- **Low Start-Up and Operating Current:** Suitable for low-power applications.  
- **Internal Reference Voltage:** 5V with tight tolerance (±1%).  

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

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