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TL2844DR-8 from TEXAS

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TL2844DR-8

Manufacturer: TEXAS, TI

Current-Mode PWM Controller

Partnumber Manufacturer Quantity Availability
TL2844DR-8,TL2844DR8 TEXAS, TI 2560 In Stock

Description and Introduction

Current-Mode PWM Controller The TL2844DR-8 is a PWM controller IC manufactured by Texas Instruments. Below are its key specifications, descriptions, and features:

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

### **Descriptions:**
- The TL2844DR-8 is a high-performance current-mode PWM controller designed for DC-DC converter applications.  
- It features an adjustable switching frequency up to 500 kHz, making it suitable for high-efficiency power supplies.  
- The device includes an error amplifier, current sensing comparator, and a totem-pole output stage for driving power MOSFETs.  

### **Features:**
- **Current-Mode Control:** Improves loop response and simplifies compensation.  
- **Undervoltage Lockout (UVLO):** Ensures proper operation under low-voltage conditions.  
- **Adjustable Frequency:** Allows optimization for efficiency and component size.  
- **Soft-Start Capability:** Reduces inrush current during startup.  
- **High-Current Totem-Pole Output:** Directly drives power MOSFETs.  
- **Low Operating Current:** Enhances efficiency in standby modes.  

This information is based on Texas Instruments' datasheet for the TL2844DR-8. For detailed application notes, refer to the official documentation.

Application Scenarios & Design Considerations

Current-Mode PWM Controller

Alternative Part Number

  • UC2844BD1R2G --: Pin-compatible current-mode PWM controller in the same UC284x family with equivalent functionality and widely available SOIC-8 package.
  • SG2844M --: Industry-standard 2844 current-mode PWM controller offering direct functional replacement with similar electrical specifications.
  • KA3844B --: Alternative 3844-series current-mode PWM controller with comparable operating characteristics and pinout for power supply designs.
  • UC3844BD1013TR --: Well-established 3844 series current-mode controller with comparable features and drop-in compatibility for most TL2844 applications.

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