TL594CNG

Frequency - Switching:	300kHz
Base Part Number:	TL594
Supplier Device Package:	16-PDIP
Package / Case:	16-DIP (0.300", 7.62mm)
Operating Temperature:	-40°C ~ 85°C (TA)
Control Features:	Dead Time Control, Frequency Control
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	Yes
Duty Cycle (Max):	48%
Series:	SWITCHMODE™
Voltage - Supply (Vcc/Vdd):	7 V ~ 40 V
Output Phases:	1
Number of Outputs:	2
Topology:	Buck, Push-Pull
Output Configuration:	Positive
Function:	Step-Down, Step-Up/Step-Down
Output Type:	Transistor Driver
Part Status:	Obsolete
Packaging:	Tube

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TL594CNG Application Field and Working Principle

Introduction

The TL594CNG is a series of versatile power management integrated circuits (PMICs) that combine sophisticated DC-DC switching controllers with an analog baseband to provide a flexible, cost-effective, and fully integrated solution for space-constrained applications. It is suitable for a wide range of control and power applications, including DC-DC conversion, power-supply sequencing, LED dimming, and LED brightness control. The TL594CNG is also suitable for battery management, pulse-width modulation (PWM) or AC power control, voltage-controlled oscillators (VCOs), and for digital- interface communication.

Application Field

The TL594CNG is designed to be used in a variety of applications, ranging from automotive to industrial and consumer applications. It is especially suitable for applications that require high efficiency, low noise, and high reliability, such as motor drives, power supplies, and battery management systems.In the automotive sector, the TL594CNG is used to design low-cost, small-form-factor power supply and motor control systems. In industrial applications, it is used in motor control systems, generators, servo controllers, and other industrial equipment. In consumer applications, the TL594CNG can be used to provide low noise, high efficiency, and reliable power supplies, LED brightness and dimming control, and pulse-width modulation for adjustable-speed motor control.

Features

The TL594CNG devices offer a range of features to meet the requirements of its wide range of application areas. These features include a range of power supply configuration modes, high-efficiency power conversion and low quiescent current, programmable peak current limit, and adjustable soft-start. The TL594CNG is available in a range of package sizes, which include a 16-pin DIP, a 20-pin TSSOP, and an 8-pin VQFN.

Working Principle

The TL594CNG is a series of versatile switching controllers that utilize an internal power switch that switches conduction between the power source and the load. It has three basic operating modes: continuous conduction, discontinuous conduction, and active burst-mode operation.In continuous conduction mode, the switch is always closed, and the current is conducted between the power source and the load as long as the switch is closed. In discontinuous conduction mode, the switch is alternately opened and closed, and when it is opened, the current stops flowing from the power source and begins to recirculate back through the switch. This operating mode is used to provide better efficiency and to reduce power consumption.In active burst-mode operation, the switch is alternately opened and closed for short periods at a predefined rate. This operating mode is used to reduce the power consumption of the system and to reduce the effects of input ripple and noise, resulting in improved system reliability.

Conclusion

The TL594CNG is a versatile and cost-effective PMIC that is suitable for a wide range of control and power management applications, such as DC-DC conversion, power supply sequencing, LED dimming, and motor control. It offers a range of features, including programmable peak current limit, adjustable soft-start, and operating modes such as continuous conduction, discontinuous conduction, and active burst-mode operation. The TL594CNG is available in a range of package sizes and is an ideal solution for a wide range of power management applications.

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