ホーム パワー・マネージメント スーパーバイザとリセット IC

プログラマブル遅延機能搭載、1% のリセット スレッショルド、アクティブ ローのリセット IC

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LP3470A アクティブ プログラマブル遅延機能搭載、1% リセット・スレッショルド、超低消費電力、アクティブ・ロー・リセット IC This device features improvements including lower IQ (0.3 μA), wider input voltage (10 V) and wider temperature range (-40°C to +125°C).

製品詳細

Number of supplies monitored 1 Threshold voltage 1 (typ) (V) 2.63, 2.75, 2.83, 2.93, 3.08, 3.65, 4, 4.38, 4.63, 5.48 Reset threshold accuracy (%) 1 Iq (typ) (mA) 0.016 Output driver type/reset output Active-low, Open-drain Supply voltage (min) (V) 0.5 Supply voltage (max) (V) 5 Rating Catalog Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 85
Number of supplies monitored 1 Threshold voltage 1 (typ) (V) 2.63, 2.75, 2.83, 2.93, 3.08, 3.65, 4, 4.38, 4.63, 5.48 Reset threshold accuracy (%) 1 Iq (typ) (mA) 0.016 Output driver type/reset output Active-low, Open-drain Supply voltage (min) (V) 0.5 Supply voltage (max) (V) 5 Rating Catalog Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 85
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8

  • Tiny SOT23-5 Package
  • Open Drain ^Reset Output
  • Programmable Reset Timeout Period Using an External Capacitor
  • Immune to Short VCC Transients

  • Tiny SOT23-5 Package
  • Open Drain ^Reset Output
  • Programmable Reset Timeout Period Using an External Capacitor
  • Immune to Short VCC Transients

  • The LP3470 is a micropower CMOS voltage supervisory circuit designed to monitor power supplies in microprocessor (µP) and other digital systems. It provides maximum adjustability for power-on-reset (POR) and supervisory functions. It is available in the following six standard reset threshold voltage (VRTH) options: 2.63V, 2.93V, 3.08V, 3.65V, 4.00V, 4.38V, and 4.63V. If other voltage options between 2.4V and 5.0V are desired please contact your National Semiconductor representative.

    The LP3470 asserts a reset signal whenever the VCC supply voltage falls below a reset threshold. The reset time-out period is adjustable using an external capacitor. Reset remains asserted for an interval (programmed by an external capacitor) after VCC has risen above the threshold voltage.

    The device is available in the tiny SOT23-5 package.


    Key Specifications

  • ±1% Reset Threshold Accuracy Over Temperature
  • Standard Reset Threshold Voltages: 2.63V, 2.93V, 3.08V, 3.65V, 4.00V, 4.38V, and 4.63V
  • Custom Reset Threshold Voltages: For other voltages between 2.4V and 5.0V contact your National Semiconductor representative
  • Very Low Quiescent Current (16 µA typical)
  • Guaranteed ^Reset valid down to VCC=0.5V

  • The LP3470 is a micropower CMOS voltage supervisory circuit designed to monitor power supplies in microprocessor (µP) and other digital systems. It provides maximum adjustability for power-on-reset (POR) and supervisory functions. It is available in the following six standard reset threshold voltage (VRTH) options: 2.63V, 2.93V, 3.08V, 3.65V, 4.00V, 4.38V, and 4.63V. If other voltage options between 2.4V and 5.0V are desired please contact your National Semiconductor representative.

    The LP3470 asserts a reset signal whenever the VCC supply voltage falls below a reset threshold. The reset time-out period is adjustable using an external capacitor. Reset remains asserted for an interval (programmed by an external capacitor) after VCC has risen above the threshold voltage.

    The device is available in the tiny SOT23-5 package.


    Key Specifications

  • ±1% Reset Threshold Accuracy Over Temperature
  • Standard Reset Threshold Voltages: 2.63V, 2.93V, 3.08V, 3.65V, 4.00V, 4.38V, and 4.63V
  • Custom Reset Threshold Voltages: For other voltages between 2.4V and 5.0V contact your National Semiconductor representative
  • Very Low Quiescent Current (16 µA typical)
  • Guaranteed ^Reset valid down to VCC=0.5V

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    種類 タイトル 最新の英語版をダウンロード 日付
    * データシート LP3470 Tiny Power On Reset Circuit (jp) データシート (Rev. E 翻訳版) 最新英語版 (Rev.G) PDF | HTML 2009年 9月 3日

    購入と品質

    記載されている情報:
    • RoHS
    • REACH
    • デバイスのマーキング
    • リード端子の仕上げ / ボールの原材料
    • MSL 定格 / ピーク リフロー
    • MTBF/FIT 推定値
    • 使用原材料
    • 認定試験結果
    • 継続的な信頼性モニタ試験結果
    記載されている情報:
    • ファブの拠点
    • 組み立てを実施した拠点