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UCC38C45D from TI/UNITRODE,Texas Instruments

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UCC38C45D

Manufacturer: TI/UNITRODE

BiCMOS Low-Power Current Mode PWM Controller

Partnumber Manufacturer Quantity Availability
UCC38C45D TI/UNITRODE 70 In Stock

Description and Introduction

BiCMOS Low-Power Current Mode PWM Controller The UCC38C45D is a high-performance current-mode PWM controller manufactured by Texas Instruments (TI)/Unitrode.  

### **Specifications:**  
- **Topology:** Current-mode PWM controller  
- **Input Voltage Range:** 8.4V to 30V (operating), 35V (max)  
- **Output Frequency Range:** Up to 1MHz  
- **Duty Cycle Range:** 0% to 100%  
- **Peak Output Current:** ±1A (source/sink)  
- **Reference Voltage:** 5.1V (±1%)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC-8  

### **Descriptions and Features:**  
- Designed for high-frequency DC-DC power conversion applications.  
- Features cycle-by-cycle current limiting for robust protection.  
- Includes an internal undervoltage lockout (UVLO) with hysteresis.  
- Adjustable soft-start for controlled startup.  
- Low startup current (typically 150µA).  
- Leading-edge blanking for noise immunity.  
- Compatible with voltage-mode operation using external compensation.  
- Suitable for flyback, forward, and boost converters.  

This controller is optimized for efficiency and reliability in power supply designs.

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