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TL1454CN from TI,Texas Instruments

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TL1454CN

Manufacturer: TI, TEXAS

DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM) CONTROL CIRCUIT

Partnumber Manufacturer Quantity Availability
TL1454CN TI, TEXAS 490 In Stock

Description and Introduction

DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM) CONTROL CIRCUIT The TL1454CN is a dual pulse-width modulation (PWM) controller manufactured by Texas Instruments (TI). Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:  

### **Specifications:**  
- **Manufacturer:** Texas Instruments (TI)  
- **Type:** Dual PWM Controller  
- **Package:** PDIP-16 (Plastic Dual In-Line Package)  
- **Operating Voltage Range:** 3.6V to 50V  
- **Output Current (per channel):** 200mA (sink/source)  
- **Switching Frequency:** Adjustable up to 500kHz  
- **Duty Cycle Range:** 0% to 100%  
- **Error Amplifier Bandwidth:** 1MHz  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
- The TL1454CN is a dual-channel PWM controller designed for power supply control applications.  
- It includes two independent PWM control circuits, each with an error amplifier, oscillator, PWM comparator, and output driver.  
- Suitable for DC-DC converters, switching regulators, and other power management systems.  

### **Features:**  
- **Dual Independent PWM Control Circuits**  
- **Wide Input Voltage Range (3.6V to 50V)**  
- **Adjustable Dead-Time Control**  
- **Internal Soft-Start Function**  
- **Undervoltage Lockout (UVLO) Protection**  
- **High-Current Totem-Pole Outputs (200mA per channel)**  
- **Synchronizable Oscillator for Multi-Phase Operation**  
- **Low Standby Current (Typical 1.7mA)**  

This information is strictly based on the manufacturer's provided data for the TL1454CN.

Application Scenarios & Design Considerations

DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM) CONTROL CIRCUIT

Alternative Part Number

  • UC3842AN --: Industry-standard current-mode PWM controller in a DIP-16 package, widely used as a functional substitute for the TL1454 dual PWM controller in many power supply designs.
  • SG3524N --: Classic dual-output PWM controller in DIP-16 with similar dual-channel regulation and oscillator features, making it a practical drop-in alternative for many TL1454 applications.
  • TL494CN --: Very common dual PWM controller in DIP-16 with comparable dual-output architecture and voltage reference, often used where the TL1454 is unavailable.
  • MC34063AP1 --: Versatile DC-DC switching regulator controller in DIP-8, suitable for similar power conversion tasks and broadly available as a functional replacement.

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