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R8355 Series

Watchdog Timer Equipped with Inhibit Pin with VD

  • Automotive
  • PLP
  • AEC-Q100
  • RoHS

The R8355 Series are CMOS-based system power ICs with a voltage detector (VD) and watchdog timer (WDT) integrated in a single chip. R8355 monitors the power system of devices equipped with microprocessors and prevents system runaway with a reset signal when a malfunction occurs. The output delay time of the VD and watchdog timeout period/reset time can be adjusted high accuracy by an external capacitor.

Specs & Datasheets

  Automotive
Input Voltage Range 0.9 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 SOT-23-6
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

R8355Nxx1A Typical Application

R8355Nxx1A Typical Application

Quality & Packages

Product Name Compatibility Package Marking Reliability
R8355Nxx1x-TR-FE
  • gradeAutomotiveA
  • aecQ1001
  • plpP
SOT-23-6 R8355N R8355N-FE

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Please contact us or our distributors for unpublished reliability information.

Sample / Buy

Functional Description

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Category:Watchdog Timers

Features +VD
VIN
min (V)
0.9
VIN
max (V)
6.0
ISS
(µA)
11