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UCC38C43DGKR from TI,Texas Instruments

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UCC38C43DGKR

Manufacturer: TI

BiCMOS Low-Power Current Mode PWM Controller

Partnumber Manufacturer Quantity Availability
UCC38C43DGKR TI 2470 In Stock

Description and Introduction

BiCMOS Low-Power Current Mode PWM Controller The UCC38C43DGKR is a high-performance current-mode PWM controller manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Topology:** Current-mode PWM controller  
- **Input Voltage Range (VDD):** 8.5V to 12V (start-up), 7.6V (UVLO turn-off)  
- **Operating Frequency Range:** Up to 1MHz  
- **Output Drive Current:** ±1A (peak)  
- **Duty Cycle Range:** 0% to 100%  
- **Propagation Delay:** 50ns (typical)  
- **Soft-Start Capability:** Adjustable  
- **Error Amplifier Bandwidth:** 5MHz  
- **Package:** 8-pin VSSOP (DGK)  

### **Descriptions:**  
The UCC38C43DGKR is designed for high-frequency power supply applications, offering precise current-mode control with fast transient response. It includes features like cycle-by-cycle current limiting, adjustable soft-start, and under-voltage lockout (UVLO) for robust operation.  

### **Features:**  
- High-speed current-mode PWM control  
- Adjustable switching frequency up to 1MHz  
- Low startup and operating current  
- Built-in leading-edge blanking  
- Internal trimmed bandgap reference  
- Under-voltage lockout (UVLO) protection  
- Cycle-by-cycle current limiting  
- Compatible with voltage-mode operation  

This device is commonly used in DC-DC converters, telecom power supplies, and industrial power systems.  

(Source: Texas Instruments datasheet for UCC38C43DGKR)

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