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TL3845B from TI,Texas Instruments

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TL3845B

Manufacturer: TI

High-Performance Current-Mode PWM Controller

Partnumber Manufacturer Quantity Availability
TL3845B TI 15 In Stock

Description and Introduction

High-Performance Current-Mode PWM Controller The TL3845B is a high-performance current-mode PWM controller manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Input Voltage Range:** Up to 30V  
- **Operating Frequency Range:** Adjustable up to 500 kHz  
- **Output Duty Cycle:** Up to 100%  
- **Current Sensing:** Precision current-mode control  
- **Error Amplifier Bandwidth:** 1 MHz  
- **Start-Up Current:** Typically 0.5 mA  
- **Under-Voltage Lockout (UVLO):** Adjustable  
- **Output Drive Current:** ±1A (peak)  
- **Package Options:** 8-Pin PDIP, SOIC  

### **Descriptions:**  
The TL3845B is designed for DC-DC converter applications, providing enhanced performance with features like high-speed switching, low start-up current, and precise duty cycle control. It is commonly used in power supply designs, including flyback, forward, and boost converters.  

### **Features:**  
- **Current-Mode Control:** Improves loop response and simplifies compensation.  
- **Adjustable Frequency:** Allows optimization for efficiency and component size.  
- **Low Start-Up Current:** Reduces power consumption during initial operation.  
- **Under-Voltage Lockout (UVLO):** Ensures proper operation under low input voltage conditions.  
- **High-Current Totem Pole Output:** Directly drives power MOSFETs.  
- **Error Amplifier with Reference:** Provides stable feedback control.  

The TL3845B is widely used in industrial, automotive, and consumer electronics applications for efficient power management.

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