JPH07273289A - Semiconductor integrated circuit device - Google Patents

Semiconductor integrated circuit device

Info

Publication number
JPH07273289A
JPH07273289A JP6061049A JP6104994A JPH07273289A JP H07273289 A JPH07273289 A JP H07273289A JP 6061049 A JP6061049 A JP 6061049A JP 6104994 A JP6104994 A JP 6104994A JP H07273289 A JPH07273289 A JP H07273289A
Authority
JP
Japan
Prior art keywords
circuit
voltage
semiconductor integrated
regulator circuit
integrated 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
JP6061049A
Other languages
Japanese (ja)
Other versions
JP3037059B2 (en
Inventor
Hiroyuki Oike
博幸 大池
Yuichi Inagawa
裕一 稲川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
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 by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP6061049A priority Critical patent/JP3037059B2/en
Publication of JPH07273289A publication Critical patent/JPH07273289A/en
Application granted granted Critical
Publication of JP3037059B2 publication Critical patent/JP3037059B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L24/00Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
    • H01L24/01Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L24/02Bonding areas ; Manufacturing methods related thereto
    • H01L24/04Structure, shape, material or disposition of the bonding areas prior to the connecting process
    • H01L24/06Structure, shape, material or disposition of the bonding areas prior to the connecting process of a plurality of bonding areas
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/02Bonding areas; Manufacturing methods related thereto
    • H01L2224/023Redistribution layers [RDL] for bonding areas
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/02Bonding areas; Manufacturing methods related thereto
    • H01L2224/04Structure, shape, material or disposition of the bonding areas prior to the connecting process
    • H01L2224/05Structure, shape, material or disposition of the bonding areas prior to the connecting process of an individual bonding area
    • H01L2224/0554External layer
    • H01L2224/0555Shape
    • H01L2224/05552Shape in top view
    • H01L2224/05554Shape in top view being square
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/01Chemical elements
    • H01L2924/01004Beryllium [Be]
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/01Chemical elements
    • H01L2924/01033Arsenic [As]
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/10Details of semiconductor or other solid state devices to be connected
    • H01L2924/11Device type
    • H01L2924/14Integrated circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Semiconductor Integrated Circuits (AREA)
  • Wire Bonding (AREA)

Abstract

PURPOSE:To prevent a reversed phenomenon in which the output voltage of an attached circuit becomes higher than the output voltage of a regulator circuit. CONSTITUTION:A semiconductor integrated circuit device is provided with a regulator circuit 1 in which a stabilized constant voltage VOUT is output from an input voltage VIN in a pulsating state and with an attached circuit 2, to the regulator circuit, to which a power supply is supplied from the regulator circuit 1 and which supplies a voltage at the voltage of lower of the regulator circuit. In the semiconductor integrated circuit, a power supply line 25 for the attached circuit is connected to a bonding pad 21 which is arranged newly on the chip of the semiconductor integrated circuit device, and it is wire- connected to an output pin 11 for the regulator circuit via the pad.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は半導体集積回路装置に係
り、特にマイクロコンピュータを含むオーディオ機器等
の回路に安定に電源を供給する、リセット機能等の付属
回路を備えたレギュレータ回路に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a semiconductor integrated circuit device, and more particularly to a regulator circuit having an auxiliary circuit such as a reset function for stably supplying power to circuits such as audio equipment including a microcomputer.

【0002】[0002]

【従来の技術】従来のリセット機能を備えたレギュレー
タ回路の回路図の一例を図5に示す。係るレギュレータ
回路1の出力ピン11には、例えばオーディオ機器の制
御回路が接続され、その制御回路にはマイクロコンピュ
ータ15が含まれている。マイクロコンピュータ15
は、その電源電圧VDDがレギュレータ回路1の出力ピン
11から供給され、そのリセット端子16はレギュレー
タ回路1のリセット電圧出力ピン13に接続されてい
る。マイクロコンピュータ15は、電源電圧VDDが投入
され、一定電圧に達して、そのリセット端子にVDD以下
のリセット電圧、つまりVDDからリセット回路の電位降
下分の電圧が下がった電圧が与えられると、マイクロコ
ンピュータ15はリセットされその制御動作を開始す
る。
2. Description of the Related Art An example of a circuit diagram of a conventional regulator circuit having a reset function is shown in FIG. For example, a control circuit of an audio device is connected to the output pin 11 of the regulator circuit 1, and the control circuit includes a microcomputer 15. Microcomputer 15
Is supplied with its power supply voltage V DD from the output pin 11 of the regulator circuit 1, and its reset terminal 16 is connected to the reset voltage output pin 13 of the regulator circuit 1. When the power supply voltage V DD is applied to the microcomputer 15 and reaches a constant voltage, a reset voltage equal to or lower than V DD , that is, a voltage obtained by decreasing the voltage corresponding to the potential drop of the reset circuit from V DD is applied to the reset terminal. , The microcomputer 15 is reset and starts its control operation.

【0003】このレギュレータ回路1は脈流状態の入力
電圧VINから安定した定電圧VOUTを出力するもので、
この半導体集積回路装置のピン12はパッド18に接続
され、AC100Vからトランスを介して全波整流の脈
流状態の電圧VINが入力される。入力電圧VINはオペア
ンプ23及びPNP型の出力トランジスタ24に電源電
圧を供給する。オペアンプの一方の入力端子(−)に
は、例えば1.2V程度の基準電圧源VREF が接続さ
れ、この電圧がレギュレータ回路1の一定の出力電圧V
OUT の基準となる。基準電圧VREF は、バンドギャップ
回路から構成され、温度特性が良好で電源電圧の依存性
の少ない安定した基準電圧を供給する。オペアンプ23
の出力はPNP型の出力トランジスタ24のベース端子
に入力され、レギュレータ回路1の出力電圧VOUT を供
給するとともに、その出力電圧VOUTはワイヤ接続26
からセンスパッド21を介して抵抗R1 及びR2 により
抵抗分割され、オペアンプの他方の入力端子(+)に帰
還される。このような帰還回路によりオペアンプ23の
2本の入力端子(+)(−)は同一電圧となるように動
作し、レギュレータ回路1の出力電圧VOUT は目標の5
乃至15V程度の一定の安定化された定電圧となる。
The regulator circuit 1 outputs a stable constant voltage V OUT from the pulsating input voltage V IN .
The pin 12 of this semiconductor integrated circuit device is connected to the pad 18, and the voltage V IN in the pulsating current state of full-wave rectification is input from AC 100 V through the transformer. The input voltage V IN supplies a power supply voltage to the operational amplifier 23 and the PNP type output transistor 24. A reference voltage source V REF of, for example, about 1.2 V is connected to one input terminal (−) of the operational amplifier, and this voltage is a constant output voltage V of the regulator circuit 1.
It becomes the standard of OUT . The reference voltage V REF is composed of a bandgap circuit and supplies a stable reference voltage having good temperature characteristics and little power supply voltage dependency. Operational amplifier 23
Is supplied to the base terminal of a PNP type output transistor 24 to supply the output voltage V OUT of the regulator circuit 1, and the output voltage V OUT is connected to the wire connection 26.
Is divided by resistors R 1 and R 2 through the sense pad 21 and fed back to the other input terminal (+) of the operational amplifier. With such a feedback circuit, the two input terminals (+) and (-) of the operational amplifier 23 operate so as to have the same voltage, and the output voltage V OUT of the regulator circuit 1 becomes the target voltage of 5V.
It becomes a constant stabilized constant voltage of about 15V.

【0004】このレギュレータ回路1に付属したリセッ
ト回路2は、その電源線25がPNP型の出力トランジ
スタ24の出力端子に接続され、飽和電圧分だけPNP
型出力トランジスタ24の出力電圧から低減された電圧
がリセットパッド20を介してマイクロコンピュータ1
5をリセットするリセット電圧として出力ピン13から
供給される。
In the reset circuit 2 attached to the regulator circuit 1, its power supply line 25 is connected to the output terminal of a PNP type output transistor 24, and the PNP is equal to the saturation voltage.
The voltage reduced from the output voltage of the mold output transistor 24 is passed through the reset pad 20 to the microcomputer 1
5 is supplied from the output pin 13 as a reset voltage for resetting 5.

【0005】[0005]

【発明が解決しようとする課題】しかしながら、上述の
ように構成されたリセット機能付レギュレータ回路にお
いては、レギュレータ回路1の出力電圧VOUT よりもリ
セット電圧の方が高くなってしまう場合がある。係る場
合には、例えばレギュレータ回路1に接続されたマイク
ロコンピュータ15においては、電源電圧VDDよりもリ
セット電圧が高くなることとなり、ラッチアップ等の問
題が生じるおそれがある。このようなリセット電圧がレ
ギュレータ回路の出力電圧VOUT よりも高くなるという
現象は、レギュレータ回路の出力電流が例えば1A程度
の大電流の場合に発生する。PNP型出力トランジスタ
24から出力ピン11に至る半導体チップ上の金属配
線、その金属配線と金属ワイヤとの接触抵抗、及び金属
ワイヤとピンとの接触抵抗等の合成抵抗による電圧ドロ
ップが大きくなり、上述の逆転現象が生じるものと考え
られる。
However, in the regulator circuit with reset function configured as described above, the reset voltage may be higher than the output voltage V OUT of the regulator circuit 1. In such a case, for example, in the microcomputer 15 connected to the regulator circuit 1, the reset voltage becomes higher than the power supply voltage V DD , which may cause a problem such as latch-up. Such a phenomenon that the reset voltage becomes higher than the output voltage V OUT of the regulator circuit occurs when the output current of the regulator circuit is a large current of about 1 A, for example. The voltage drop due to the combined resistance such as the metal wiring on the semiconductor chip from the PNP output transistor 24 to the output pin 11, the contact resistance between the metal wiring and the metal wire, and the contact resistance between the metal wire and the pin becomes large, and It is considered that a reversal phenomenon occurs.

【0006】本発明は上述の事情に鑑みて為されたもの
であり、付属回路の出力電圧がレギュレータ回路の出力
電圧よりも高くなる逆転現象を防止することのできる半
導体集積回路装置を提供することを目的とする。
The present invention has been made in view of the above circumstances, and provides a semiconductor integrated circuit device capable of preventing the inversion phenomenon in which the output voltage of the accessory circuit becomes higher than the output voltage of the regulator circuit. With the goal.

【0007】[0007]

【課題を解決するための手段】本発明の半導体集積回路
装置は、脈流状態の入力電圧から安定化した定電圧を出
力するレギュレータ回路と、該レギュレータ回路から電
源が供給され該レギュレータ回路の出力電圧よりも僅か
に低い電圧を供給する前記レギュレータ回路の付属回路
とを備えた半導体集積回路装置において、前記付属回路
の電源線は、前記半導体集積回路装置のチップ上に新た
に配置したボンディングパッドに接続され、該パッドを
介して前記レギュレータ回路の出力ピンにワイヤ接続さ
れたことを特徴とする。
SUMMARY OF THE INVENTION A semiconductor integrated circuit device according to the present invention includes a regulator circuit for outputting a constant voltage stabilized from an input voltage in a pulsating flow state, and an output of the regulator circuit supplied with power from the regulator circuit. In a semiconductor integrated circuit device including an accessory circuit of the regulator circuit that supplies a voltage slightly lower than the voltage, the power supply line of the accessory circuit is a bonding pad newly arranged on a chip of the semiconductor integrated circuit device. And connected to the output pin of the regulator circuit by wire via the pad.

【0008】[0008]

【作用】付属回路の電源線は従来のような出力トランジ
スタの出力端子ではなく、出力ピンに直接接続されてい
るので、レギュレータ回路の出力トランジスタと出力ピ
ンの間に生じる抵抗に大電流が流れることによる電圧ド
ロップ分の影響を受けない。従って、付属回路の出力電
圧は、常にレギュレータ回路の出力電圧よりも僅かに低
いものとなる。
[Function] Since the power supply line of the accessory circuit is directly connected to the output pin, not to the output terminal of the conventional output transistor, a large current will flow in the resistor generated between the output transistor and the output pin of the regulator circuit. Is not affected by the voltage drop due to. Therefore, the output voltage of the auxiliary circuit is always slightly lower than the output voltage of the regulator circuit.

【0009】[0009]

【実施例】以下、本発明の一実施例について添付図面を
参照しながら説明する。なお、各図中同一又は相当部分
には同一の符号を付して重複した説明を省略する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. In the drawings, the same or corresponding parts will be denoted by the same reference symbols and redundant description will be omitted.

【0010】図1は、本発明の第1実施例のリセット機
能付レギュレータ回路を示す。本実施例においては、リ
セット回路2の電源線25は、新たに設けられた半導体
集積回路チップ上のボンディングパッド22に配線接続
されている。そしてこのボンディングパッド22は出力
ピン11にワイヤ接続されている。係る構成により、リ
セット回路2の電源線25には、出力ピン11の電圧V
OUT がそのまま供給される。したがって、リセット回路
2の出力であるリセット電圧VRESET は、電源線からト
ランジスタ1段の飽和電圧分だけ低いものとなるので、
常にリセット電圧VRESET は出力電圧VOUT よりも低い
ものとなる。尚、ワイヤと出力ピンの抵抗成分はチップ
内部の配線抵抗に比べて2桁〜3桁小さく、これによる
電圧ドロップ分は無視できるレベルである。
FIG. 1 shows a regulator circuit with a reset function according to a first embodiment of the present invention. In this embodiment, the power supply line 25 of the reset circuit 2 is connected to the bonding pad 22 on the newly provided semiconductor integrated circuit chip. The bonding pad 22 is wire-connected to the output pin 11. With such a configuration, the voltage V of the output pin 11 is connected to the power line 25 of the reset circuit 2.
OUT is supplied as is. Therefore, the reset voltage V RESET output from the reset circuit 2 is lower than the power supply line by the saturation voltage of one stage of the transistor,
The reset voltage V RESET is always lower than the output voltage V OUT . The resistance component of the wire and the output pin is smaller by 2 to 3 digits than the wiring resistance inside the chip, and the voltage drop due to this is at a level that can be ignored.

【0011】図2は、本発明の第2実施例のリセット機
能付レギュレータ回路を示す。本実施例においては、リ
セット回路2の電源線25は、既在の半導体集積回路チ
ップ上のボンディングパッド21に配線接続されてい
る。そしてこのボンディングパッド21は出力ピン11
にワイヤ接続されている。係る構成により、リセット回
路2の電源線25には、出力ピン11の電圧VOUT がそ
のまま供給される。したがって、リセット回路2の出力
であるリセット電圧VRESET は、電源線25からトラン
ジスタ1段の飽和電圧分だけ低いものとなるので、常に
リセット電圧VRE SET は出力電圧VOUT よりも低いもの
となる。
FIG. 2 shows a regulator circuit with a reset function according to a second embodiment of the present invention. In this embodiment, the power supply line 25 of the reset circuit 2 is wire-connected to the bonding pad 21 on the existing semiconductor integrated circuit chip. The bonding pad 21 is connected to the output pin 11
Wired to. With such a configuration, the voltage V OUT of the output pin 11 is directly supplied to the power supply line 25 of the reset circuit 2. Accordingly, the reset voltage V RESET is an output of the reset circuit 2, since the power supply line 25 becomes lower by saturation voltage of the first stage transistor, becomes lower than the output voltage V OUT is always reset voltage V RE SET .

【0012】本実施例では、リセット回路2の電源線2
5はセンス電圧のパッド21に配線接続されている。セ
ンス電圧のパッド21からはレギュレータ回路の出力ピ
ン11にワイヤ接続されていることは従来の技術におい
て説明した図4の回路と同様である。係る構成により、
上述の第1実施例と同様に、リセット回路2の電源線2
5には出力電圧VOUT が与えられるので、1A程度の出
力電流を出力ピン11から外部に供給しても、PNP型
の出力トランジスタ24の出力端子と出力ピン11間に
生じる電圧ドロップの影響を受けることなく、リセット
回路の出力電圧VRESET は常にレギュレータ回路の出力
電圧VOUT よりも低くなる。尚、パッド21には帰還電
流とリセット回路の電流が流れるが、この電流は両者を
合わせても数十μA〜数mAしか流れないので、電位降
下による影響は無視できる。
In this embodiment, the power supply line 2 of the reset circuit 2 is
Reference numeral 5 is connected by wiring to the pad 21 for the sense voltage. The sense voltage pad 21 is wire-connected to the output pin 11 of the regulator circuit in the same manner as the circuit of FIG. 4 described in the related art. With this configuration,
Similar to the first embodiment described above, the power supply line 2 of the reset circuit 2
Since the output voltage V OUT is given to 5, even if an output current of about 1 A is supplied from the output pin 11 to the outside, the influence of the voltage drop generated between the output terminal of the PNP type output transistor 24 and the output pin 11 is affected. Without being received, the output voltage V RESET of the reset circuit is always lower than the output voltage V OUT of the regulator circuit. The feedback current and the current of the reset circuit flow through the pad 21, but the current flows only tens of microamperes to several milliamperes even when the two are combined, so the influence of the potential drop can be ignored.

【0013】図3は、本発明の第3実施例の充電電圧検
出機能付きバッテリ充電回路を示す。本実施例は、例え
ば携帯電話の電源であるバッテリ34をチャージ(充
電)するレギュレータ回路30と、付属回路であるバッ
テリの充電状態を検出して、出力電圧VOUT が一定値を
越えるとLEDランプ32を点灯させる充電電圧検出回
路31とから構成される。
FIG. 3 shows a battery charging circuit with a charging voltage detecting function according to a third embodiment of the present invention. In this embodiment, for example, the LED lamp is detected when the output voltage V OUT exceeds a certain value by detecting the charging state of the regulator circuit 30 that charges the battery 34 that is the power source of the mobile phone and the battery that is the auxiliary circuit. And a charging voltage detection circuit 31 for lighting 32.

【0014】本実施例においても、充電電圧検出回路3
1の電源線35は、センス(帰還電圧)パッド21に接
続され、ワイヤ26を介して出力ピン11に接続され、
出力電圧VOUT がそのまま供給される。電圧検出回路3
1の電源線35には、僅かな電流しか流れないので、レ
ギュレータ回路30の出力トランジスタ24の出力端子
から大電流が流れ、出力ピン11との間に合成抵抗分に
よる電圧ドロップが生じても、電圧検出回路の電源線3
5には、常にバッテリ34の充電電圧VOUTが供給さ
れ、正確な電圧検出を行うことができる。
Also in this embodiment, the charging voltage detection circuit 3
The power supply line 35 of No. 1 is connected to the sense (feedback voltage) pad 21, and is connected to the output pin 11 via the wire 26.
The output voltage V OUT is supplied as it is. Voltage detection circuit 3
Since only a small amount of current flows through the power supply line 35 of No. 1, even if a large current flows from the output terminal of the output transistor 24 of the regulator circuit 30 and a voltage drop occurs due to the combined resistance with the output pin 11, Power supply line 3 for voltage detection circuit
5, the charging voltage V OUT of the battery 34 is constantly supplied, and accurate voltage detection can be performed.

【0015】図4は、本発明の第4実施例の充電電圧検
出機能付きバッテリ充電回路を示す。基本的な回路構成
は図3と同様である。本実施例では、チップ上に新たに
パッド36を設け、充電電圧検出回路31の電源線35
は、チップ上に新たに設けたパッド36に接続され、ワ
イヤ37を介して出力ピンに接続され、出力電圧がその
まま供給される。かかる構成により、充電電圧検出回路
31の電源線35には、常にバッテリ34の充電電圧V
OUT が供給され、正確な電圧検出を行うことができる。
FIG. 4 shows a battery charging circuit with a charging voltage detecting function according to a fourth embodiment of the present invention. The basic circuit configuration is the same as in FIG. In this embodiment, a pad 36 is newly provided on the chip and the power supply line 35 of the charging voltage detection circuit 31 is provided.
Is connected to a pad 36 newly provided on the chip, is connected to an output pin via a wire 37, and the output voltage is supplied as it is. With this configuration, the charging voltage V of the battery 34 is always supplied to the power line 35 of the charging voltage detection circuit 31.
OUT is supplied and accurate voltage detection can be performed.

【0016】なお、上述の実施例はレギュレータの付属
回路としてリセット回路を備えたものと、バッテリ充電
回路における充電電圧検出回路の例について説明した。
本発明の趣旨は、このような実施例に限定されるもので
なく、広く安定化した定電圧を出力するレギュレータ回
路と、そのレギュレータ回路から電源が供給される付属
回路を備えた半導体集積回路装置に適用可能である。
The above embodiment has been described with respect to the example in which the reset circuit is provided as an auxiliary circuit of the regulator and the charging voltage detecting circuit in the battery charging circuit.
The gist of the present invention is not limited to such an embodiment, but a semiconductor integrated circuit device including a regulator circuit that outputs a widely stabilized constant voltage and an auxiliary circuit to which power is supplied from the regulator circuit. Is applicable to.

【0017】[0017]

【発明の効果】以上に説明したように、本発明によれば
安定化した定電圧を出力するレギュレータ回路とそのレ
ギュレータ回路から電源が供給される付属回路とを常に
安定に動作させることができ、負荷側の回路にラッチア
ップ等の問題を引き起こす恐れがない。また、バッテリ
充電回路の充電電圧検出回路に本発明を適用すれば、バ
ッテリの充電電圧と検出電圧との差を縮めて、正確な電
圧検出を行うことができる。
As described above, according to the present invention, a regulator circuit that outputs a stabilized constant voltage and an auxiliary circuit to which power is supplied from the regulator circuit can always be operated stably. There is no risk of causing problems such as latch-up in the load side circuit. Further, by applying the present invention to the charging voltage detecting circuit of the battery charging circuit, it is possible to reduce the difference between the charging voltage of the battery and the detection voltage, and perform accurate voltage detection.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の第1実施例のリセット機能付レギュレ
ータ回路の回路図。
FIG. 1 is a circuit diagram of a regulator circuit with a reset function according to a first embodiment of the present invention.

【図2】本発明の第2実施例のリセット機能付レギュレ
ータ回路の回路図。
FIG. 2 is a circuit diagram of a regulator circuit with reset function according to a second embodiment of the present invention.

【図3】本発明の第3実施例の充電電圧検出回路付バッ
テリ充電回路の回路図。
FIG. 3 is a circuit diagram of a battery charging circuit with a charging voltage detection circuit according to a third embodiment of the present invention.

【図4】本発明の第4実施例の充電電圧検出回路付バッ
テリ充電回路の回路図。
FIG. 4 is a circuit diagram of a battery charging circuit with a charging voltage detection circuit according to a fourth embodiment of the present invention.

【図5】従来のリセット機能付レギュレータ回路の回路
図。
FIG. 5 is a circuit diagram of a conventional regulator circuit with a reset function.

Claims (6)

【特許請求の範囲】[Claims] 【請求項1】 脈流状態の入力電圧から安定化した定電
圧を出力するレギュレータ回路と、該レギュレータ回路
から電源が供給され該レギュレータ回路の出力電圧以下
の電圧を供給する前記レギュレータ回路の付属回路とを
備えた半導体集積回路装置において、前記付属回路の電
源線は、前記半導体集積回路装置のチップ上に新たに配
置したボンディングパッドに接続され、該パッドを介し
て前記レギュレータ回路の出力ピンにワイヤ接続された
ことを特徴とする半導体集積回路装置。
1. A regulator circuit that outputs a stabilized constant voltage from an input voltage in a pulsating state, and an auxiliary circuit of the regulator circuit that is supplied with power from the regulator circuit and that supplies a voltage equal to or lower than an output voltage of the regulator circuit. In the semiconductor integrated circuit device including the above, the power supply line of the accessory circuit is connected to a bonding pad newly arranged on a chip of the semiconductor integrated circuit device, and a wire is connected to an output pin of the regulator circuit via the pad. A semiconductor integrated circuit device characterized by being connected.
【請求項2】 脈流状態の入力電圧から安定化した定電
圧を出力するレギュレータ回路と、該レギュレータ回路
から電源が供給され該レギュレータ回路の出力電圧以下
の電圧を供給する前記レギュレータ回路の付属回路とを
備えた半導体集積回路装置において、前記付属回路の電
源線は、前記半導体集積回路装置のチップ上の前記レギ
ュレータ回路の帰還電圧のパッドに接続され、該パッド
を介して前記レギュレータ回路の出力ピンにワイヤ接続
されたことを特徴とする半導体集積回路装置。
2. A regulator circuit which outputs a stabilized constant voltage from an input voltage in a pulsating state, and an auxiliary circuit of the regulator circuit which is supplied with power from the regulator circuit and supplies a voltage equal to or lower than an output voltage of the regulator circuit. In a semiconductor integrated circuit device including: a power supply line of the accessory circuit is connected to a feedback voltage pad of the regulator circuit on a chip of the semiconductor integrated circuit device, and the output pin of the regulator circuit is connected via the pad. A semiconductor integrated circuit device characterized by being wire-connected to the.
【請求項3】 前記付属回路は、前記レギュレータ回路
から電源を供給される他の半導体集積回路をリセットす
るリセット電圧を供給するものであることを特徴とする
請求項1又は2記載の半導体集積回路装置。
3. The semiconductor integrated circuit according to claim 1, wherein the auxiliary circuit supplies a reset voltage for resetting another semiconductor integrated circuit supplied with power from the regulator circuit. apparatus.
【請求項4】 脈流状態の入力電圧から安定化した定電
圧を出力してバッテリ充電を行うレギュレータ回路と、
該レギュレータ回路の出力端子の電圧を検出して前記バ
ッテリの充電状態を監視する付属回路とを備えた半導体
集積回路装置において、前記付属回路の検出ラインは、
前記半導体集積回路のチップ上に新たに配置したボンデ
ィングパッドに接続され、該パッドを介して前記レギュ
レータ回路の出力ピンにワイヤ接続されたことを特徴と
する半導体集積回路装置。
4. A regulator circuit that outputs a stabilized constant voltage from a pulsating input voltage to charge a battery,
In a semiconductor integrated circuit device having an auxiliary circuit for detecting the voltage of the output terminal of the regulator circuit to monitor the state of charge of the battery, the detection line of the auxiliary circuit is
A semiconductor integrated circuit device, which is connected to a bonding pad newly arranged on a chip of the semiconductor integrated circuit, and is wire-connected to an output pin of the regulator circuit via the pad.
【請求項5】 脈流状態の入力電圧から安定化した定電
圧を出力してバッテリ充電を行うレギュレータ回路と、
該レギュレータ回路の出力端子の電圧を検出して前記バ
ッテリの充電状態を監視する付属回路とを備えた半導体
集積回路装置において、前記付属回路の検出ラインは、
前記半導体集積回路のチップ上の前記レギュレータ回路
の帰還電圧のパッドに接続され、該パッドを介して前記
レギュレータ回路の出力ピンにワイヤ接続されたことを
特徴とする半導体集積回路装置。
5. A regulator circuit for charging a battery by outputting a stabilized constant voltage from an input voltage in a pulsating flow state,
In a semiconductor integrated circuit device having an auxiliary circuit for detecting the voltage of the output terminal of the regulator circuit to monitor the state of charge of the battery, the detection line of the auxiliary circuit is
A semiconductor integrated circuit device, which is connected to a feedback voltage pad of the regulator circuit on a chip of the semiconductor integrated circuit, and is wire-connected to an output pin of the regulator circuit via the pad.
【請求項6】 前記付属回路は、前記バッテリの満充電
により外部接続した表示素子を駆動するための駆動回路
であることを特徴とする請求項4又は5記載の半導体集
積回路装置。
6. The semiconductor integrated circuit device according to claim 4, wherein the accessory circuit is a drive circuit for driving a display element connected externally when the battery is fully charged.
JP6061049A 1994-03-30 1994-03-30 Semiconductor integrated circuit device Expired - Fee Related JP3037059B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6061049A JP3037059B2 (en) 1994-03-30 1994-03-30 Semiconductor integrated circuit device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6061049A JP3037059B2 (en) 1994-03-30 1994-03-30 Semiconductor integrated circuit device

Publications (2)

Publication Number Publication Date
JPH07273289A true JPH07273289A (en) 1995-10-20
JP3037059B2 JP3037059B2 (en) 2000-04-24

Family

ID=13159984

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6061049A Expired - Fee Related JP3037059B2 (en) 1994-03-30 1994-03-30 Semiconductor integrated circuit device

Country Status (1)

Country Link
JP (1) JP3037059B2 (en)

Also Published As

Publication number Publication date
JP3037059B2 (en) 2000-04-24

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