The R5101 Series are CMOS-based system power ICs with a voltage regulator (VR) featuring 50mA output, a voltage detector (VD) and a watchdog timer (WDT) integrated in a single chip. R5101 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 R5101 is equipped with the function that inhibits clock monitoring of the WDT (CE).
|Operating Voltage Range (Maximum Rating)||1.5 V to 10 V (12 V)|
|Supply Current||Typ. 5 µA (VDD=VCE=-VSET+2V)|
|<Voltage Regulator (VR)>|
|Output Current (IOUT)||50 mA|
|Output Voltage Range||1.8 V to 5.0 V (0.1V steps)|
|Output Voltage Accuracy||±2.5%|
|<Voltage Detector (VD)>|
|Detector Threshold Range||1.7 V to 4.5 V (0.1V steps)|
|Detector Threshold Accuracy||±2.5%|
|Output Delay Time||Min. 7ms, Typ. 14ms, Max. 35ms (CD=0.001µF)|
|Output Type||Nch. Open Drain|
|<Watchdog Timer (WDT)>|
|Watchdog Timeout Period||Typ. 120 ms (CW=0.01µF)|
|Reset Hold Time of WDT||Typ. 12 ms (CW=0.01µF)|
* Vref2H : CTW pin voltage at the end of WDT timeout period.
* Vref2L : CTW pin voltage at the begin of WDT timeout period.
* TSCKW : SCK input pulse width
The output voltage and the detector threshold for the ICs can be selected at the users’ request.
|Product Name||Package||Quantity per Reel|