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UC3845BD1013TR from ST,ST Microelectronics

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UC3845BD1013TR

Manufacturer: ST

HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER

Partnumber Manufacturer Quantity Availability
UC3845BD1013TR ST 1363 In Stock

Description and Introduction

HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER The UC3845BD1013TR is a PWM controller IC manufactured by STMicroelectronics.  

### **Specifications:**  
- **Type:** Current Mode PWM Controller  
- **Output Configuration:** Single-Ended  
- **Topology:** Flyback, Forward  
- **Output Type:** Transistor Driver  
- **Number of Outputs:** 1  
- **Switching Frequency:** Up to 500 kHz  
- **Duty Cycle (Max):** 50%  
- **Supply Voltage (Vcc):** 8.4V to 30V  
- **Supply Current (Max):** 11mA  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC-8  

### **Descriptions:**  
The UC3845BD1013TR is a fixed-frequency current-mode PWM controller designed for DC-DC converter applications. It features an oscillator, a temperature-compensated reference, high-gain error amplifier, current sensing comparator, and a totem-pole output stage.  

### **Features:**  
- Adjustable duty cycle control  
- Current-mode operation for improved transient response  
- Under-voltage lockout (UVLO) with hysteresis  
- Latching PWM for cycle-by-cycle current limiting  
- Internal trimmed bandgap reference  
- Low start-up and operating current  

This IC is commonly used in power supply designs, including offline and DC-DC converters.

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