Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Applications:	--
Current - Supply:	30µA
Voltage - Supply:	3 V ~ 3.6 V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	8-WFDFN Exposed Pad
Supplier Device Package:	8-TDFN (2x2)

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Introduction

The SLG7NT4198V power management integrated circuit (PMIC) is a specialized device designed to provide a combination of high-precision and high-accuracy power supply sequencing on small and medium-sized electronic products. This PMIC integrates overvoltage protection and overcurrent protection with low-dropout linear regulators and low-side power switches to produce power supply sequencing signals. A brief overview of the application field and working principle of this device is presented in this article.

Application field

The SLG7NT4198V is designed primarily for applications in small to medium-sized electronic products, such as televisions and digital cameras. It is capable of providing fast, highly accurate power supply sequencing to enable stable, reliable operation of the electronic product. Because the device is small in size and requires minimal external components, it can be easily integrated into a variety of products. It supports a wide input voltage range from 4.5V to 25V and provides a wide output voltage range of 2.2V to 25V, with a maximum output current of 6A.The device also features a selectable slew rate, which can be adjusted from fast to slow to produce the desired power sequencing. This makes the device a very flexible and versatile option for many different requirements. Additionally, the device features a shutdown control, which can be triggered externally or can be automatically triggered when an overcurrent or overvoltage event is detected. This provides further protection to the system and further improves the power supply sequencing accuracy.

Working principle

The SLG7NT4198V provides a combination of low-dropout linear regulators, low-side power switches, and overvoltage and overcurrent protection to produce power supply sequencing signals. The input voltage is sensed by the device and, depending on the voltage level, the low dropout linear regulators and low side power switches are either enabled or disabled. Additionally, the selectable slew rate is used to control the speed of transitioning between the enabled and disabled states.The device also features an overvoltage protection circuit, which monitors the input voltage and automatically shuts down the device when an overvoltage event is detected. Additionally, the device features an overcurrent protection circuit, which monitors the output current and automatically shuts down the device when an overcurrent event is detected. When an event is detected, the device will switch to a standby mode and enter a safe mode until a reset condition is applied. In conclusion, the SLG7NT4198V is a specialized PMIC designed for use in small to medium-sized electronic products. The device integrates low-dropout linear regulators, low-side power switches, and overvoltage and overcurrent protection, with a selectable slew rate, to provide a combination of high-precision and high-accuracy power supply sequencing signals. This makes the device a reliable, flexible, and versatile option for many applications.

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