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TL2844DR from TI,Texas Instruments

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TL2844DR

Manufacturer: TI

Current-Mode PWM Controller

Partnumber Manufacturer Quantity Availability
TL2844DR TI 52 In Stock

Description and Introduction

Current-Mode PWM Controller The TL2844DR is a pulse width modulation (PWM) controller manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Topology:** Flyback, Forward, Boost, Buck  
- **Control Method:** Current-Mode PWM  
- **Frequency Range:** Up to 500 kHz  
- **Output Voltage:** Adjustable  
- **Input Voltage (VCC):** 8V to 30V  
- **Duty Cycle Max:** 50%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC-8  

### **Descriptions:**  
The TL2844DR is a high-performance current-mode PWM controller designed for DC-DC converter applications. It provides precise voltage regulation and includes features like under-voltage lockout (UVLO), cycle-by-cycle current limiting, and soft-start capability.  

### **Features:**  
- **Current-Mode Control:** Improves loop response and simplifies compensation.  
- **Under-Voltage Lockout (UVLO):** Ensures proper operation within specified voltage ranges.  
- **Soft-Start:** Reduces inrush current during startup.  
- **Cycle-by-Cycle Current Limiting:** Protects against overloads.  
- **500 kHz Operation:** Supports high-frequency switching for compact designs.  
- **Low Standby Power Consumption:** Enhances efficiency in standby modes.  

This device is commonly used in power supplies, battery chargers, and industrial power management systems.

Application Scenarios & Design Considerations

Current-Mode PWM Controller

Alternative Part Number

  • UC2844D --: Same current-mode PWM controller function and pinout from TI's UC series, widely used as a direct cross for the TL2844.
  • SG3844D --: Industry-standard current-mode PWM controller equivalent to the 2844 family, available in SOIC package with compatible specifications.
  • UC3844BD1 --: Current-mode PWM controller in SOIC-8 with matching control topology and voltage reference, suitable drop-in alternative.

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