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UC2843D8TR from TI,Texas Instruments

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15.625ms

UC2843D8TR

Manufacturer: TI

Current-Mode PWM Controller

Partnumber Manufacturer Quantity Availability
UC2843D8TR TI 1245 In Stock

Description and Introduction

Current-Mode PWM Controller The UC2843D8TR is a PWM controller manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Manufacturer:** Texas Instruments (TI)  
- **Part Number:** UC2843D8TR  
- **Type:** Current Mode PWM Controller  
- **Package:** SOIC-8  
- **Operating Temperature Range:** -40°C to +85°C  
- **Input Voltage (VCC):** Up to 30V  
- **Output Current:** 1A (Peak)  
- **Switching Frequency:** Up to 500kHz  
- **Duty Cycle Range:** 0% to 100%  
- **Features Under-Voltage Lockout (UVLO):** Yes  
- **Start-Up Current:** <1mA  

### **Descriptions and Features:**  
- The UC2843D8TR is a high-performance current-mode PWM controller designed for offline and DC-DC converter applications.  
- It provides precise duty cycle control with current-mode operation for improved loop response.  
- Includes built-in UVLO protection to ensure proper start-up and shutdown.  
- Features a trimmed oscillator for accurate frequency control.  
- Suitable for flyback, forward, and boost converter topologies.  
- Low power consumption in standby mode.  
- Available in an 8-pin SOIC package for compact designs.  

This information is based solely on the manufacturer's specifications.

Partnumber Manufacturer Quantity Availability
UC2843D8TR TT/BB 2500 In Stock

Description and Introduction

Current-Mode PWM Controller The UC2843D8TR is a high-performance current-mode PWM controller manufactured by Texas Instruments (TT) and ON Semiconductor (BB).  

### **Specifications:**  
- **Topology:** Current-mode PWM controller  
- **Input Voltage Range (VCC):** 8.4V to 30V  
- **Output Current:** Up to 1A (peak)  
- **Switching Frequency:** Up to 500kHz  
- **Duty Cycle Range:** 0% to 100%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC-8  

### **Descriptions:**  
- Designed for offline and DC-DC converter applications.  
- Features include under-voltage lockout (UVLO), current limiting, and thermal shutdown.  
- Includes a trimmed oscillator for precise duty cycle control.  

### **Features:**  
- **Current-Mode Operation:** Improves loop response and simplifies compensation.  
- **Automatic Feed-Forward Compensation:** Enhances line regulation.  
- **Latching PWM for Cycle-by-Cycle Current Limiting:** Prevents output overload.  
- **Internal Trimmed Bandgap Reference:** Provides stable voltage regulation.  
- **Low Startup and Operating Current:** Improves efficiency.  

This information is sourced from the manufacturer's datasheets for UC2843D8TR by Texas Instruments (TT) and ON Semiconductor (BB).

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