IC Phoenix logo

Home ›  U  › U7 > UC3843TD

UC3843TD from ST,ST Microelectronics

Fast Delivery, Competitive Price @IC-phoenix

If you need more electronic components or better pricing, we welcome any inquiry.

5.005ms

UC3843TD

Manufacturer: ST

HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER

Partnumber Manufacturer Quantity Availability
UC3843TD ST 208 In Stock

Description and Introduction

HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER The UC3843TD is a high-performance current-mode PWM controller manufactured by STMicroelectronics. Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Specifications:**  
- **Input Voltage Range (VCC):** 8.5V to 30V (operating)  
- **Output Drive Current (Peak):** ±1A  
- **Switching Frequency:** Up to 500kHz  
- **Duty Cycle Range:** 0% to 100% (adjustable)  
- **Reference Voltage (VREF):** 5V ±1%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC-8  

### **Descriptions:**  
The UC3843TD is a fixed-frequency pulse-width modulation (PWM) controller designed for DC-DC converter and power supply applications. It operates in current-mode control, providing precise regulation and improved loop response. The device includes features such as under-voltage lockout (UVLO), cycle-by-cycle current limiting, and a totem-pole output stage for driving power MOSFETs.  

### **Features:**  
- **Current-Mode Control:** Enhances line and load regulation.  
- **Under-Voltage Lockout (UVLO):** Ensures proper startup and shutdown.  
- **Adjustable Oscillator Frequency:** Set by external components.  
- **Precision 5V Reference:** Stable for feedback loop accuracy.  
- **Cycle-by-Cycle Current Limiting:** Protects against overloads.  
- **High-Current Totem-Pole Output:** Directly drives power MOSFETs.  
- **Low Startup and Operating Current:** Improves efficiency.  

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

Request Quotation

For immediate assistance, call us at +86 533 2716050 or email [email protected]

Part Number Quantity Target Price($USD) Email Contact Person
We offer highly competitive channel pricing. Get in touch for details.

Specializes in hard-to-find components chips