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      參數(shù)資料
      型號: S-80880CLPF-B8ATFG
      廠商: Seiko Instruments Inc.
      英文描述: ULTRA-SMALL PACKAGE HIGH-PRECISION VOLTAGE DETECTOR
      中文描述: 超小型封裝高精度電壓檢測器
      文件頁數(shù): 33/54頁
      文件大?。?/td> 672K
      代理商: S-80880CLPF-B8ATFG
      Rev.3.2
      _00
      ULTRA-SMALL PACKAGE HIGH-PRECISION VOLTAGE DETECTOR
      S-808xxC Series
      Seiko Instruments Inc.
      33
      2. Power-on Reset Circuit
      A power-on reset circuit can be constructed using Nch open-drain output product of S-808
      ××
      C Series.
      (
      Nch open-drain products)
      OUT
      VIN
      VSS
      VDD
      S-
      808xxCN
      R
      *1
      C
      Di
      *2
      (R
      75 k
      )
      *1.
      Resistor R should be 75 k
      or less to prevent oscillation.
      *2.
      Diode Di instantaneously discharges the charge stored in the capacitor (C) at the power falling,Di can be
      removed when the delay of the falling time is not important.
      Figure 27
      V
      DD
      (V)
      t (s)
      OUT
      (V)
      t (s)
      Figure 28
      Remark
      When the power rises sharply as shown in the
      Figure 29
      left, the output may goes to the high level
      for an instant in the undefined region where the output voltage is undefined since the power
      voltage is less than the minimum operation voltage.
      V
      DD
      (V)
      t (s)
      OUT
      (V)
      t (s)
      Figure 29
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