JPH01153738U - - Google Patents

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Publication number
JPH01153738U
JPH01153738U JP5100988U JP5100988U JPH01153738U JP H01153738 U JPH01153738 U JP H01153738U JP 5100988 U JP5100988 U JP 5100988U JP 5100988 U JP5100988 U JP 5100988U JP H01153738 U JPH01153738 U JP H01153738U
Authority
JP
Japan
Prior art keywords
drive
transistor
current mirror
drive transistor
circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP5100988U
Other languages
Japanese (ja)
Other versions
JP2521344Y2 (en
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1988051009U priority Critical patent/JP2521344Y2/en
Publication of JPH01153738U publication Critical patent/JPH01153738U/ja
Application granted granted Critical
Publication of JP2521344Y2 publication Critical patent/JP2521344Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は一実施例を示す等価回路図、第２図は
同実施例のレイアウトを示す平面図、第３図は従
来の駆動用ＩＣを示す等価回路図、第４図は従来
の駆動用ＩＣのレイアウトを示す平面図である。 １……ＩＣチツプ、２……ＬＥＤ、３……駆動
トランジスタ、６ａ……カレントミラートランジ
スタ。 Fig. 1 is an equivalent circuit diagram showing one embodiment, Fig. 2 is a plan view showing the layout of the same embodiment, Fig. 3 is an equivalent circuit diagram showing a conventional drive IC, and Fig. 4 is a conventional drive IC. FIG. 2 is a plan view showing the layout of an IC. 1...IC chip, 2...LED, 3...drive transistor, 6a...current mirror transistor.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 電子装置の素子に電流を流すために各素子ごと
に設けられた駆動トランジスタと、これらの駆動
トランジスタとカレントミラー回路を構成するカ
レントミラートランジスタとを含み、カレントミ
ラートランジスタは各駆動トランジスタに接近し
て各駆動トランジスタごとに配置されている駆動
回路用半導体集積回路装置。 The electronic device includes a drive transistor provided for each element to cause current to flow through the element, and a current mirror transistor that constitutes a current mirror circuit with these drive transistors, and the current mirror transistor is close to each drive transistor. A semiconductor integrated circuit device for a drive circuit arranged for each drive transistor.
JP1988051009U 1988-04-15 1988-04-15 Semiconductor integrated circuit device for drive circuit Expired - Lifetime JP2521344Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988051009U JP2521344Y2 (en) 1988-04-15 1988-04-15 Semiconductor integrated circuit device for drive circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988051009U JP2521344Y2 (en) 1988-04-15 1988-04-15 Semiconductor integrated circuit device for drive circuit

Publications (2)

Publication Number Publication Date
JPH01153738U true JPH01153738U (en) 1989-10-23
JP2521344Y2 JP2521344Y2 (en) 1996-12-25

Family

ID=31277038

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988051009U Expired - Lifetime JP2521344Y2 (en) 1988-04-15 1988-04-15 Semiconductor integrated circuit device for drive circuit

Country Status (1)

Country Link
JP (1) JP2521344Y2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58225727A (en) * 1982-06-21 1983-12-27 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Darlington circuit
JPS61296820A (en) * 1985-06-25 1986-12-27 Toshiba Corp Current mirror circuit for switch

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58225727A (en) * 1982-06-21 1983-12-27 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Darlington circuit
JPS61296820A (en) * 1985-06-25 1986-12-27 Toshiba Corp Current mirror circuit for switch

Also Published As

Publication number Publication date
JP2521344Y2 (en) 1996-12-25

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