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UC2842ADW from UNI

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15.625ms

UC2842ADW

Manufacturer: UNI

Current Mode PWM Controller

Partnumber Manufacturer Quantity Availability
UC2842ADW UNI 3 In Stock

Description and Introduction

Current Mode PWM Controller The UC2842ADW is a PWM controller IC manufactured by Texas Instruments (not UNI). Here are its key specifications, descriptions, and features:

### **Specifications:**  
- **Topology:** Current-mode PWM controller  
- **Input Voltage Range:** Up to 30V (operating), 50V (absolute max)  
- **Output Duty Cycle:** 0% to 100%  
- **Switching Frequency:** Up to 500kHz  
- **Output Current (Source/Sink):** 1A (peak)  
- **Reference Voltage:** 5V (±1%)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC-16 (DW)  

### **Descriptions:**  
- Designed for offline and DC-DC converter applications.  
- Features high-frequency operation with precise duty cycle control.  
- Includes under-voltage lockout (UVLO) with hysteresis for reliable startup.  

### **Features:**  
- **Current-Mode Control:** Improves loop response and simplifies compensation.  
- **Programmable Oscillator:** Adjustable frequency via external components.  
- **Soft-Start Capability:** Reduces startup stresses.  
- **Error Amplifier:** Wide bandwidth for feedback control.  
- **Pulse-by-Pulse Current Limiting:** Enhances protection.  
- **Latch for Single-Pulse Metering:** Ensures controlled shutdown.  
- **Low Startup Current (0.5mA typical):** Efficient power-up.  

This IC is widely used in power supplies, battery chargers, and industrial applications. Note that the manufacturer is Texas Instruments, not UNI.

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