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UC3845D8TR from TI,Texas Instruments

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5.005ms

UC3845D8TR

Manufacturer: TI

Current-Mode PWM Controller

Partnumber Manufacturer Quantity Availability
UC3845D8TR TI 251 In Stock

Description and Introduction

Current-Mode PWM Controller The UC3845D8TR is a high-performance current-mode PWM controller manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Topology:** Current-mode PWM controller  
- **Input Voltage Range (VCC):** 8.5V to 30V  
- **Output Frequency (max):** 500kHz  
- **Duty Cycle (max):** 100%  
- **Output Current (source/sink):** 1A / 1A  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC-8  

### **Descriptions:**  
The UC3845D8TR is designed for DC-DC converter applications, providing precise duty cycle control with current-mode operation. It includes features like under-voltage lockout (UVLO), cycle-by-cycle current limiting, and a trimmed oscillator for accurate frequency control.  

### **Features:**  
- Adjustable output duty cycle  
- Internal trimmed oscillator  
- Latching PWM for cycle-by-cycle current limiting  
- Under-voltage lockout (UVLO) with hysteresis  
- High-current totem-pole output  
- Low start-up and operating current  

This device is commonly used in power supply designs, including flyback, forward, and boost converters.  

(Source: Texas Instruments UC3845D8TR Datasheet)

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