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UCC28C43DGKRG4 from TI/BB,Texas Instruments

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UCC28C43DGKRG4

Manufacturer: TI/BB

BiCMOS Low-Power Current Mode PWM Controller 8-VSSOP -40 to 105

Partnumber Manufacturer Quantity Availability
UCC28C43DGKRG4 TI/BB 111 In Stock

Description and Introduction

BiCMOS Low-Power Current Mode PWM Controller 8-VSSOP -40 to 105 The UCC28C43DGKRG4 is a high-performance current-mode PWM controller manufactured by Texas Instruments (TI) and Burr-Brown (BB).  

### **Specifications:**  
- **Output Type:** Totem Pole  
- **Topology:** Boost, Flyback, Forward  
- **Switching Frequency:** Up to 1 MHz  
- **Duty Cycle (Max):** 100%  
- **Supply Voltage (Vcc):** 8.5V to 18V (operating), 20V (absolute max)  
- **Output Current (Source/Sink):** 1A / 1A  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** VSSOP-8 (DGK)  

### **Descriptions:**  
- A versatile PWM controller designed for offline and DC-DC power supplies.  
- Features current-mode control for improved transient response and simplified loop compensation.  
- Includes under-voltage lockout (UVLO), soft-start, and cycle-by-cycle current limiting.  

### **Features:**  
- **Current-Mode Control:** Enhances noise immunity and simplifies feedback loop design.  
- **Programmable Switching Frequency:** Adjustable up to 1 MHz.  
- **Soft-Start Capability:** Reduces inrush current during startup.  
- **Under-Voltage Lockout (UVLO):** Ensures proper operation within supply voltage limits.  
- **High-Current Totem Pole Output:** Directly drives power MOSFETs.  
- **Low Startup Current:** Typically 0.5 mA.  
- **Cycle-by-Cycle Current Limiting:** Protects against overloads.  

This device is commonly used in power supply applications such as AC/DC converters, industrial power systems, and telecom power modules.

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