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UC2842N from TI,Texas Instruments

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7.813ms

UC2842N

Manufacturer: TI

CURRENT MODE PWM CONTROLLER

Partnumber Manufacturer Quantity Availability
UC2842N TI 2539 In Stock

Description and Introduction

CURRENT MODE PWM CONTROLLER The UC2842N is a PWM controller IC manufactured by Texas Instruments (TI). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**  
- **Manufacturer:** Texas Instruments (TI)  
- **Category:** Integrated Circuits (ICs)  
- **Family:** PMIC - Voltage Regulators - DC DC Switching Controllers  
- **Topology:** Flyback, Forward  
- **Control Mode:** Current Mode  
- **Output Type:** Transistor Driver  
- **Number of Outputs:** 1  
- **Frequency - Switching:** Up to 500kHz  
- **Voltage - Supply (Vcc/Vdd):** 8V to 30V  
- **Duty Cycle (Max):** 100%  
- **Synchronous Rectifier:** No  
- **Clock Sync:** No  
- **Operating Temperature:** -40°C to +85°C  
- **Package / Case:** PDIP-8 (Plastic Dual In-Line Package)  

### **Descriptions:**  
The UC2842N is a high-performance current-mode PWM controller designed for offline and DC-DC converter applications. It provides precise regulation with features like under-voltage lockout (UVLO), current sensing, and error amplification. The device is optimized for flyback and forward converter topologies.  

### **Features:**  
- **Current-Mode Control:** Improves loop response and simplifies compensation.  
- **Automatic Feed-Forward Compensation:** Enhances line regulation.  
- **Under-Voltage Lockout (UVLO):** Ensures proper startup and shutdown.  
- **Trimmed Oscillator Discharge Current:** Tight frequency control.  
- **High-Current Totem Pole Output:** Directly drives power MOSFETs.  
- **Pulse-by-Pulse Current Limiting:** Provides cycle-by-cycle protection.  
- **Low Startup and Operating Current:** Reduces power consumption.  
- **Internal Soft-Start:** Reduces stress during startup.  
- **Latching PWM for Cycle-by-Cycle Current Limiting:** Enhances reliability.  

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

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