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UC2842ADTR from TEXAS

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UC2842ADTR

Manufacturer: TEXAS

Current Mode PWM Controller

Partnumber Manufacturer Quantity Availability
UC2842ADTR TEXAS 26 In Stock

Description and Introduction

Current Mode PWM Controller The UC2842ADTR is a high-performance current-mode PWM controller 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, Boost, Buck  
- **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:** SOIC-8  
- **Mounting Type:** Surface Mount  

### **Descriptions:**  
- The UC2842ADTR is a fixed-frequency PWM controller optimized for high-performance DC-DC power supply applications.  
- It provides precise regulation through current-mode control, improving loop response and simplifying compensation.  
- The device includes an under-voltage lockout (UVLO) feature with hysteresis, ensuring reliable startup and shutdown.  
- It is widely used in offline and DC-DC converters, power supplies, and battery chargers.  

### **Features:**  
- **Current-Mode Operation:** Enhances transient response and simplifies loop compensation.  
- **Automatic Feed-Forward Compensation:** Improves line regulation.  
- **Trimmed Oscillator Discharge Current:** Ensures precise duty cycle control.  
- **Under-Voltage Lockout (UVLO):** Ensures proper startup and shutdown.  
- **High-Current Totem Pole Output:** Directly drives power MOSFETs.  
- **Low Startup Current:** Typically 0.5mA.  
- **Internal Soft-Start:** Reduces inrush current during startup.  
- **Pulse-by-Pulse Current Limiting:** Provides cycle-by-cycle protection.  

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

Application Scenarios & Design Considerations

Current Mode PWM Controller
Partnumber Manufacturer Quantity Availability
UC2842ADTR TI 1000 In Stock

Description and Introduction

Current Mode PWM Controller The UC2842ADTR is a current-mode PWM controller manufactured by Texas Instruments (TI).  

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

### **Descriptions:**  
The UC2842ADTR is designed for high-performance offline and DC-DC power supplies. It provides precise duty cycle control with current-mode operation for improved transient response and simplified loop compensation.  

### **Features:**  
- **Current-Mode Operation**: Enhances line and load regulation.  
- **Automatic Feed-Forward Compensation**: Improves input voltage rejection.  
- **Trimmed Oscillator Discharge Current**: Ensures precise duty cycle control.  
- **Undervoltage Lockout (UVLO)**: Ensures proper startup and shutdown.  
- **Pulse-by-Pulse Current Limiting**: Provides cycle-by-cycle protection.  
- **Low Startup Current**: Typically 0.5mA.  
- **High-Current Totem Pole Output**: Suitable for driving power MOSFETs directly.  

This information is sourced from the manufacturer's datasheet.

Application Scenarios & Design Considerations

Current Mode PWM Controller

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