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Drive circuit

A technology for driving circuits and power supply terminals, which is applied in circuits, circuit devices, emergency protection circuit devices, etc., and can solve problems such as entering integrated circuits or external components.

Active Publication Date: 2019-02-19
VANGUARD INTERNATIONAL SEMICONDUCTOR CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when an ESD event occurs on the I / O pad, the ESD current may enter the integrated circuit or external components through the I / O pad

Method used

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Embodiment Construction

[0025] figure 1 It is a schematic block diagram of the driving circuit of the present invention. like figure 1 As shown, the driving circuit 100 includes a detector 110 , a controller 120 and a release control element 130 . In this embodiment, the driving circuit 100 can control the level of an input / output bonding pad (I / O PAD) 150, and has electrostatic discharge protection capability, and can release the electrostatic discharge from the power supply terminal 140 or the input / output bonding pad 150. current.

[0026] The detector 110 is coupled to the power terminal 140 and the I / O pad 150, and detects whether an electrostatic discharge event occurs on the power terminal 140 or the I / O pad 150 to generate a detection signal S D and a trigger signal S T . Detection signal S D with trigger signal S T One is used to enable the controller 120 . For example, when an electrostatic discharge event occurs at the power terminal 140 or the input / output bonding pad 150, the det...

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PUM

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Abstract

The invention discloses a driving circuit which can control a position of an input / output bonding pad and has an static electricity discharge protection function. The driving circuit comprises a detector, a controller and a releasing control member; the detector is coupled to a power supply terminal and an input / output bonding pad; the controller is coupled to the detector; the releasing control member is coupled to the power supply terminal or the input / output bonding pad and is coupled to the controller; when a static electricity discharge event happens on the power supply terminal or the input / output bonding pad, the detector enables the controller to enable the controller to conduct the releasing control member in order to release a static electricity releasing electric current. When the static electricity event does not happen on the power supply terminal and the input / output bonding pad, the detector does not enable the controller and the releasing control unit conducts according to a control signal in order to control the level of the input / output bonding pad. The driving circuit can control the level of the input / output bonding pad and has the static electricity discharge protection function.

Description

technical field [0001] The present invention relates to a driving circuit, in particular to a driving circuit with electrostatic discharge protection. Background technique [0002] In general, a semiconductor integrated circuit has a plurality of input and output pads, and external components are controlled through the input and output pads. For example, external components may be enabled based on the level of an I / O pad. However, when an ESD event occurs on the I / O pad, the ESD current may enter the integrated circuit or external components through the I / O pad. Contents of the invention [0003] In view of this, the present invention provides a driving circuit for controlling the level of an input and output bonding pad and having electrostatic discharge protection capability. The driving circuit of the present invention includes a detector, a controller and a release control element. The detector is coupled to a power terminal and the I / O bonding pad. The controller ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02H9/02H01L23/60
Inventor 黄绍璋吕世襄林耿立
Owner VANGUARD INTERNATIONAL SEMICONDUCTOR CORPORATION