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TL1451A from TI,Texas Instruments

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TL1451A

Manufacturer: TI

Dual Channel Controller with Wide Input Voltage Range

Partnumber Manufacturer Quantity Availability
TL1451A TI 6630 In Stock

Description and Introduction

Dual Channel Controller with Wide Input Voltage Range The TL1451A is a pulse-width modulation (PWM) control circuit manufactured by Texas Instruments (TI). Below are its specifications, descriptions, and features:

### **Specifications:**  
- **Supply Voltage (VCC):** 3.6V to 40V  
- **Output Current (Sink/Source):** 200mA (per output)  
- **Oscillator Frequency Range:** 1kHz to 500kHz  
- **Duty Cycle Range:** 0% to 100%  
- **Error Amplifier Input Offset Voltage:** 2mV (typical)  
- **Error Amplifier Gain Bandwidth Product:** 1MHz (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package Options:** SOIC-16, PDIP-16  

### **Descriptions:**  
The TL1451A is a dual PWM controller designed for DC-DC converter applications. It includes two independent control circuits, each with an error amplifier, a PWM comparator, and an output driver. The device operates over a wide input voltage range and is suitable for switching power supplies, inverters, and motor control applications.  

### **Features:**  
- **Dual PWM Control Circuits:** Two independent channels for flexible power supply designs.  
- **Adjustable Dead Time:** Allows precise control of output switching.  
- **Internal Undervoltage Lockout (UVLO):** Ensures proper operation under low-voltage conditions.  
- **Synchronous Operation:** Both channels can be synchronized to an external clock.  
- **Error Amplifiers:** High-gain bandwidth for accurate feedback control.  
- **Short-Circuit Protection:** Includes pulse-by-pulse current limiting.  
- **Wide Operating Voltage Range:** Supports 3.6V to 40V input.  

This information is sourced from Texas Instruments' official documentation for the TL1451A.

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