Watchdog Timer with VD
The R5105 Series are CMOS-based system power ICs with a voltage detector (VD) and watchdog timer (WDT) integrated in a single chip. R5105 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.
Automotive Input Voltage Range 0.9 V to 6.0 V (7.0 V) Operating Temperature Range -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 SOT-23-6 VD Detector Threshold Range 1.5 V to 5.5 V (0.1 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% (−40°C ≤ Ta ≤ 105°C)
±18% (−40°C ≤ Ta ≤ 125°C)
- 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.
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