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UCC28C42DGKR from TI,Texas Instruments

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UCC28C42DGKR

Manufacturer: TI

BiCMOS Low Current 8 Pin PWM Current Mode Controller

Partnumber Manufacturer Quantity Availability
UCC28C42DGKR TI 396 In Stock

Description and Introduction

BiCMOS Low Current 8 Pin PWM Current Mode Controller The UCC28C42DGKR 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)  
- **Part Number:** UCC28C42DGKR  
- **Package:** VSSOP-8 (DGK)  
- **Operating Temperature Range:** -40°C to +105°C  
- **Input Voltage Range (VDD):** 8.4V to 18V  
- **Switching Frequency Range:** Adjustable up to 1MHz  
- **Output Drive Current (Peak):** ±1A  
- **Duty Cycle Range:** 0% to 100%  
- **UVLO (Undervoltage Lockout):** 7.6V (turn-on), 7.2V (turn-off)  
- **Error Amplifier Bandwidth:** 5MHz  
- **Current Sense Threshold:** 1V  

### **Descriptions:**  
The UCC28C42DGKR is a high-speed, current-mode PWM controller designed for offline and DC-DC power supply applications. It provides precise regulation with features such as cycle-by-cycle current limiting, adjustable switching frequency, and soft-start capability. The device is optimized for high-frequency operation and is suitable for flyback, forward, and boost converter topologies.

### **Features:**  
- **Current-Mode Control:** Improves loop response and simplifies compensation.  
- **Adjustable Frequency:** Up to 1MHz operation for compact designs.  
- **High-Current Totem-Pole Output:** Supports fast MOSFET switching.  
- **Programmable Soft-Start:** Reduces inrush current during startup.  
- **Cycle-by-Cycle Current Limiting:** Enhances system reliability.  
- **Internal Leading-Edge Blanking:** Improves noise immunity in current sensing.  
- **Low Startup Current:** 150µA (typical).  
- **Wide Operating Temperature Range:** Suitable for industrial applications.  

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

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