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Semiconductor device and power off method of semiconductor device

A semiconductor, power-off time technology, applied in electrical components, electronic switches, adjusting electrical variables, etc., can solve problems such as slow response speed and poor responsiveness

Pending Publication Date: 2019-03-05
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This can cause issues such as poor responsiveness or slow responses

Method used

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  • Semiconductor device and power off method of semiconductor device
  • Semiconductor device and power off method of semiconductor device
  • Semiconductor device and power off method of semiconductor device

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Embodiment Construction

[0038] In the following, reference will be made to Figure 1 to Figure 10 Semiconductor devices according to some embodiments of the inventive concept are described.

[0039] Embodiments may be described and illustrated in terms of blocks that perform one or more of the described functions, as is conventional in the field of the inventive concept. These blocks, which may be referred to herein as units or modules, etc., are implemented by devices such as logic gates, integrated circuits, microprocessors, microcontrollers, memory circuits, passive electronic components, active electronic components, optical components, hardwired circuits, etc. The analog and / or digital circuits are physically implemented and optionally driven by firmware and / or software. For example, the circuitry may be implemented in one or more semiconductor chips, or on a substrate support such as a printed circuit board or the like. Unless otherwise stated, the circuitry constituting a block may be implem...

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Abstract

The present invention provides a semiconductor device and a power-off method of the semiconductor device. The semiconductor device includes a first power source group including first and second powersources, a second power source group including a third power source and a power sequence controller. The power sequence controller performs power-on operations and power-off operations of the first tothird power sources. The power sequence controller starts a power-off operation of the first power source group at a first time, and starts a power-off operation of the second power source group whenthe power voltage of the first power source group becomes a first voltage or when a first reference time has passed from the first time.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to Korean Patent Application No. 10-2017-0108758 filed with the Korean Intellectual Property Office on Aug. 28, 2017, the entire contents of which are incorporated herein by reference. technical field [0003] The inventive concepts described herein relate to semiconductor devices, and more particularly, to a method of powering down a semiconductor device. Background technique [0004] In a system on chip (SoC), dozens of power supplies can be supplied by a power management integrated chip (PMIC), often with a complex power supply configuration. These dozens of power supplies are individually controlled in microseconds or given time units when energized. [0005] The reason for controlling the power supplies at such a fine level when energized is to prevent inrush current and supply power to each power supply stably. [0006] However, it is difficult to control the power supply at a f...

Claims

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Application Information

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IPC IPC(8): H03K17/04H03K17/24H03K17/56
CPCH03K17/04H03K17/24H03K17/56G06F1/26G11C5/148G05F1/59G06F1/28G06F1/3203G06F1/30
Inventor 全浩渊金大焕李永勋
Owner SAMSUNG ELECTRONICS CO LTD