Voltage References | NCP431

電圧リファレンス、低カソード電流、プログラムブル、シャント・レギュレータ

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集積回路 NCP431 は、3 端子プログラムブル・シャント・レギュレータ・ダイオードです。業界標準 TL431A の直接アップグレード版です。このモノリシック IC 電圧リファレンス外部抵抗器 2 つによって Vref ～ 36 V でプログラム可能な低温度係数ツェナーとして動作します。動作電流範囲は 40 µA ～ 100 mA と広く、定格動的インピーダンスは 0.22Ω です。このリファレンスの特性は、デジタル電圧メータ、電源、オペアンプ回路など多くのアプリケーションで、ツェナーダイオードの優れた代替となります。2.5 V のリファレンスは、5.0 V のロジック電源から安定したリファレンスを得られるので便利です。NCP431 はシャント・レギュレータとして動作するため、正負いずれかの電圧リファレンスとして使用できます。最小動作電流が低いので、超低～無負荷消費の SMPS アダプタでのセカンダリ・レギュレータに最適です。NCP432 の機能と電気的仕様は NCP431 とまったく同じですが、代替ピンが構成されています。

  • Switchmode Power Supplies
  • Instrumentation
  • Adapters
  • Flat TVs
  • Low Minimum Operating Current: 40 uA, Typ @ 25C
  • Voltage Reference Tolerance: 1%, Typ @ 25C
  • Programmable Output Voltage to 36 V
  • Low Dynamic Output Impedance, 0.22ohm Typical
  • Temperature Compensated for Operation over Full Rated Operating
    Temperature Range
  • Equivalent FullRange Temperature Coefficient of 50 ppm/C
    Typical
  • NCP431 is pin compatible to the TL432
  • NCP432 is pin compatible to the TL431

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NCP431ACDR2G

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Pb

A

H

P

SOIC-8

751-07

1

260

REEL

2500

N

Adjustable

2.5

1

0.04

0.04

36

0

70

Price N/A

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NCP431ACLPRAG

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Pb

A

H

P

TO-92

29-10

NA

0

REEL

2000

N

Adjustable

2.5

1

0.04

0.04

36

0

70

Price N/A

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NCP431ACSNT1G

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CAD Model

Pb

A

H

P

SOT-23 (TO-236) 2.90x1.30x1.00, 1.90P

318

1

260

REEL

3000

Y

Adjustable

2.5

1

0.04

0.04

36

0

70

$0.1057

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NCP431AIDR2G

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CAD Model

Pb

A

H

P

SOIC-8

751-07

1

260

REEL

2500

N

Adjustable

2.5

1

0.04

0.04

36

-40

85

Price N/A

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NCP431AILPRAG

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CAD Model

Pb

A

H

P

TO-92

29-10

NA

0

REEL

2000

N

Adjustable

2.5

1

0.04

0.04

36

-40

85

Price N/A

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NCP431AISNT1G

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Active

CAD Model

Pb

A

H

P

SOT-23 (TO-236) 2.90x1.30x1.00, 1.90P

318

1

260

REEL

3000

Y

Adjustable

2.5

1

0.04

0.04

36

-40

85

$0.106

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NCP431AVDR2G

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CAD Model

Pb

A

H

P

SOIC-8

751-07

1

260

REEL

2500

N

Adjustable

2.5

1

0.04

0.04

36

-40

125

Price N/A

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NCP431AVLPG

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Pb

A

H

P

TO-92

29-10

NA

0

BLKBG

2000

N

Adjustable

2.5

1

0.04

0.04

36

-40

125

Price N/A

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NCP431AVLPRAG

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CAD Model

Pb

A

H

P

TO-92

29-10

NA

0

REEL

2000

N

Adjustable

2.5

1

0.04

0.04

36

-40

125

Price N/A

More Details

NCP431AVSNT1G

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Active

CAD Model

Pb

A

H

P

SOT-23 (TO-236) 2.90x1.30x1.00, 1.90P

318

1

260

REEL

3000

Y

Adjustable

2.5

1

0.04

0.04

36

-40

125

$0.1057

More Details

NCP431BCSNT1G

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Active

CAD Model

Pb

A

H

P

SOT-23 (TO-236) 2.90x1.30x1.00, 1.90P

318

1

260

REEL

3000

N

Adjustable

2.5

0.5

0.04

0.04

36

0

70

$0.0963

More Details

NCP431BISNT1G

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Active

CAD Model

Pb

A

H

P

SOT-23 (TO-236) 2.90x1.30x1.00, 1.90P

318

1

260

REEL

3000

Y

Adjustable

2.5

0.5

0.04

0.04

36

-40

85

$0.1284

More Details

NCP431BVSNT1G

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Active

CAD Model

Pb

A

H

P

SOT-23 (TO-236) 2.90x1.30x1.00, 1.90P

318

1

260

REEL

3000

Y

Adjustable

2.5

0.5

0.04

0.04

36

-40

125

$0.079

More Details

NCP432BCSNT1G

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Active

CAD Model

Pb

A

H

P

SOT-23 (TO-236) 2.90x1.30x1.00, 1.90P

318

1

260

REEL

3000

N

Adjustable

2.5

0.5

0.04

0.04

36

0

70

$0.1025

More Details

NCP432BISNT1G

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Active

CAD Model

Pb

A

H

P

SOT-23 (TO-236) 2.90x1.30x1.00, 1.90P

318

1

260

REEL

3000

N

Adjustable

2.5

0.5

0.04

0.04

36

-40

85

$0.1025

More Details

NCP432BVSNT1G

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Active

CAD Model

Pb

A

H

P

SOT-23 (TO-236) 2.90x1.30x1.00, 1.90P

318

1

260

REEL

3000

N

Adjustable

2.5

0.5

0.04

0.04

36

-40

125

$0.1056

More Details

SC431AVSNT1G

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Active

CAD Model

Pb

A

H

P

SOT-23 (TO-236) 2.90x1.30x1.00, 1.90P

318

1

260

REEL

3000

Y

Adjustable

2.5

1

0.04

0.04

36

-40

125

$0.1867

More Details

SC431BVSNT1G

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Active

CAD Model

Pb

A

H

P

SOT-23 (TO-236) 2.90x1.30x1.00, 1.90P

318

1

260

REEL

3000

Y

Adjustable

2.5

0.5

0.04

0.04

36

-40

125

$0.2

More Details

SC432BVSNT1G

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Active

CAD Model

Pb

A

H

P

SOT-23 (TO-236) 2.90x1.30x1.00, 1.90P

318

1

260

REEL

3000

Y

Adjustable

2.5

0.5

0.04

0.04

36

-40

125

$0.2

More Details

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