R5107 Series
Watchdog Timer Equipped with Manual Reset with VD

Package1
Package1

Description

The R5107 Series are CMOS-based system power ICs with a voltage detector (VD) and watchdog timer (WDT) integrated in a single chip. R5107 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 by an external capacitor with a high degree of accuracy. The R5107 is equipped with the function that inhibits clock monitoring of the WDT (INH) and manual reset (MR) that also stops the VD.

Spec

Standard Industrial Automotive
Input Voltage Range 0.9 V to 6.0 V (7.0 V)
Operating Temperature Range -40°C to 105°C (125°C) -40°C to 125°C (150°C) -40°C to 125°C (150°C)
-40°C to 105°C (150°C)
Supply Current Typ. 11 µA
Timeout Period Typ. 310 ms (CTW = 0.1 µF)
Timeout Period Accuracy ±33%
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
VD Release Output Delay Time Typ. 370 ms (CD = 0.1 µF)
VD Release Delay Time Accuracy ±16% ±18% ±18% (−40 °C ≤ Ta ≤ 125°C)
±16% (−40 °C ≤ Ta ≤ 105°C)

Download Datasheet

Search for similar products under conditions below.

Category:Watchdog Timers

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

Technical Documents

  • Typical Application

    Typical Application

  • Timing Chart

    Timing Chart

    * VTCD : Threshold voltage of CD pin when a power-on reset pulse inverting.
    * Vref2H : CTW pin voltage at the end of WDT timeout period.
    * Vref2L : CTW pin voltage at the begin of WDT timeout period.
    * VDDL : 0.9 V (Max.)

Quality & Packages

  • Refer to the datasheets for the details on the product.
  • The package file or the datasheet includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.

FAQ

Buy / Contact

  • Purchase, Request for samples and documents
    Sales are made through distributors. Please contact your local distributors for any sales-related inquiry such as price.
  • Available from 1 piece!
    Our electronic device products are available through our authorized online distributors.
  • Technical Support