TL497AIDG4

Voltage - Output (Min/Fixed):	±1.2V
Base Part Number:	TL497
Supplier Device Package:	14-SOIC
Package / Case:	14-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	--
Current - Output:	500mA (Switch)
Voltage - Output (Max):	30V, -25V
Series:	--
Voltage - Input (Max):	12V
Voltage - Input (Min):	4.5V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck, Boost
Output Configuration:	Positive or Negative
Function:	Step-Up, Step-Down
Part Status:	Active
Packaging:	Tube

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TL497AIDG4 Application Field and Working Principle

Introduction

TL497AIDG4 is an integrated circuit belonging to the PMIC – Voltage Regulators – DC DC Switching Regulators family. It is an advanced switch mode power supply which utilizes a pair of high-gain avalanche transistors. The device’s outputs are capable of delivering currents up to 400 mA and voltage up to 30 V.

Application Field

TL497AIDG4 is a highly efficient switching regulator controller, designed to meet the requirements of low-power applications such as automotive, industrial control and communication systems. It can be used in switch mode DC/DC converters, fixed-voltage and variable-voltage power supply designs, with five different output configurations that provide improved power supply design flexibility.The converter provides high-efficiency step-down and inverting power converters with advanced features and control options. Additionally, it offers the ability to include diode emulation, soft-start, over-temperature protection and over-voltage protection.

Working Principle

TL497AIDG4 operates as a step-down or inverting DC-DC converter. The device is capable of providing high-efficiency operation, with a wide operating frequency range that can be adjusted via the soft-start pin. The circuit consists of two series connected power transistors and one diode. When the signal at the input is high, the control signal switches the transistors on, allowing current to flow from Vin to Vout. When the signal is low, the transistors turn off and the current is redirected from Vout to ground through the diode.The TL497AIDG4 features advanced protection features such as over-temperature, over-current, over-voltage and under-voltage protection. It also includes a soft-start feature that allows the user to adjust the output voltage and avoid current inrush. The device is capable of supplying up to 400 mA and operates at a maximum voltage of 30 V.TL497AIDG4 is an ideal solution for a wide range of applications due to its high efficiency, high power density and wide range of protection features. It is a reliable and cost-effective way to improve system performance and extend product life.

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