R8358 Series
Watchdog Timer Equipped with SENSE Pin with VD

  • Description

    The R8358 Series are CMOS-based system power ICs with a voltage detector (VD) and watchdog timer (WDT) integrated in a single chip.

    R8358 monitors the power system of devices equipped with microprocessors and prevents system runaway with a reset signal when a malfunction occurs. R8358 is equipped with the function that inhibits clock monitoring of the WDT (INH). Since R8358 has a SENSE pin for monitoring voltage separately from the power pin, its reset signal does not become unstable under the condition that the power supply is sufficient to operate the IC, and the "L" can be maintained.

  • Spec
    Automotive
    Input Voltage Range 1.5 V to 6.0 V (7.0 V)
    Operating Temperature Range -40°C to 125°C (150°C)
    Supply Current Typ. 11 µA
    Timeout Period Typ. 310 ms (CTW = 0.1 µF)
    Timeout Period Accuracy ±33% (-40°C ≤ Ta ≤ 110°C)
    Reset Time Typ. 34 ms (CTW = 0.1 µF)
    Package SSOP-8G
    VD Detector Threshold Range 1.5 V to 5.5 V (0.1 V step)
    VD Detector Threshold Accuracy ±1.0%
    VD Detector Threshold Temperature Coefficient Typ. ±100 ppm/°C (-40°C ≤ Ta ≤ 110°C)
    VD Release Output Delay Time Typ. 350 ms (CD = 0.1 µF)
    VD Release Delay Time Accuracy ±16% (-40°C ≤ Ta ≤ 110°C)
  • Technical
    Documents
    • Typical Application

      Typical Application

  • Quality &
    Packages
    • Refer to the datasheets for the details on the product.
    • The package file includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.
    • Please contact us or our distributors for unpublished reliability information.

Download Datasheet

Functional Description

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Category:Watchdog Timers

Features +VD,SENSE pin
VIN
min (V)
1.5
VIN
max (V)
6.0
ISS
(µA)
11