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UC2842AD8TR from TI,Texas Instruments

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UC2842AD8TR

Manufacturer: TI

Current Mode PWM Controller

Partnumber Manufacturer Quantity Availability
UC2842AD8TR TI 2500 In Stock

Description and Introduction

Current Mode PWM Controller The UC2842AD8TR is a current-mode PWM controller manufactured by Texas Instruments (TI). Below are its specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Texas Instruments (TI)  
- **Part Number:** UC2842AD8TR  
- **Package:** SOIC-8  
- **Type:** Current-Mode PWM Controller  
- **Topology:** Flyback, Forward, Boost, Buck  
- **Operating Frequency:** Up to 500 kHz  
- **Input Voltage Range:** 8.4V to 30V  
- **Output Voltage:** Adjustable  
- **Duty Cycle Range:** 0% to 100%  
- **Maximum Output Current:** 1A (peak)  
- **Start-Up Current:** <1mA  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**
The UC2842AD8TR is a high-performance, fixed-frequency current-mode PWM controller. It is designed for DC-DC converter and offline power supply applications. The device features an integrated oscillator, high-gain error amplifier, current sensing comparator, and a totem-pole output stage for driving power MOSFETs. It includes under-voltage lockout (UVLO) protection and cycle-by-cycle current limiting.

### **Features:**
- **Current-Mode Control:** Improves loop response and simplifies compensation.  
- **Automatic Feed-Forward Compensation:** Enhances line regulation.  
- **Under-Voltage Lockout (UVLO):** Ensures proper start-up and shutdown.  
- **Trimmed Oscillator Discharge Current:** Tightens frequency control.  
- **High-Current Totem-Pole Output:** Directly drives power MOSFETs.  
- **Cycle-by-Cycle Current Limiting:** Protects against overloads.  
- **Low Start-Up Current (<1mA):** Reduces power consumption during start-up.  
- **Internal Soft-Start:** Minimizes inrush current.  

This information is based solely on the manufacturer's datasheet for the UC2842AD8TR.

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