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UC2842BNG from Pb-free

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15.625ms

UC2842BNG

Manufacturer: Pb-free

High Performance Current Mode Controllers

Partnumber Manufacturer Quantity Availability
UC2842BNG Pb-free 1744 In Stock

Description and Introduction

High Performance Current Mode Controllers The UC2842BNG is a high-performance current-mode PWM controller manufactured by Texas Instruments. Here are the factual details about its Pb-free specifications, descriptions, and features:

### **Pb-Free Specifications**  
- The UC2842BNG is **Pb-free (RoHS compliant)**.  
- It meets the requirements of the **Restriction of Hazardous Substances (RoHS) Directive**.  

### **Descriptions**  
- The UC2842BNG is a **fixed-frequency current-mode PWM controller**.  
- It is designed for **offline and DC-DC converter applications**.  
- Features include **trimmed oscillator discharge current**, **automatic feed-forward compensation**, and **current-sensing comparator with leading-edge blanking**.  
- The device is available in an **8-pin PDIP (N) package**.  

### **Features**  
- **Current-Mode Operation**: Provides improved line regulation and simplified loop compensation.  
- **Automatic Feed-Forward Compensation**: Ensures consistent performance across input voltage variations.  
- **Trimmed Oscillator Discharge Current**: Ensures precise duty cycle control.  
- **Undervoltage Lockout (UVLO)**: Ensures reliable startup and shutdown.  
- **High-Current Totem Pole Output**: Capable of driving power MOSFETs directly.  
- **Pulse-by-Pulse Current Limiting**: Enhances system protection.  
- **Internal Soft-Start**: Reduces inrush current during startup.  
- **Operating Frequency Up to 500 kHz**: Suitable for high-frequency switching applications.  

These details are based on the manufacturer's specifications for the UC2842BNG.

Partnumber Manufacturer Quantity Availability
UC2842BNG DIP8 150 In Stock

Description and Introduction

High Performance Current Mode Controllers The UC2842BNG is a current-mode PWM controller manufactured by Texas Instruments, available in a DIP8 package.  

### **Specifications:**  
- **Topology:** Current-mode PWM controller  
- **Input Voltage (VIN):** Up to 30V  
- **Output Drive Current:** ±1A (peak)  
- **Switching Frequency:** Up to 500kHz  
- **Duty Cycle Range:** 0% to 100%  
- **Reference Voltage (VREF):** 5V ±1%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin DIP (Dual In-line Package)  

### **Descriptions & Features:**  
- **Current-Mode Control:** Provides cycle-by-cycle current limiting for improved transient response.  
- **Under-Voltage Lockout (UVLO):** Ensures proper start-up and shutdown with programmable thresholds.  
- **Error Amplifier:** Features high-gain bandwidth for precise feedback control.  
- **Soft-Start Capability:** Reduces inrush current during startup.  
- **Pulse-by-Pulse Current Limiting:** Enhances system reliability.  
- **Low Startup Current:** Typically 0.5mA for efficient operation.  
- **Synchronization Capability:** Allows external clock synchronization.  

The UC2842BNG is commonly used in power supply applications such as DC-DC converters, offline flyback converters, and battery chargers.

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