Watchdog Timeout Period Externally Adjustable Voltage Detector

The XC6131 series are voltage detectors with a watchdog function. The watchdog timeout time and release delay time can be set as desired using a single external capacitor. These voltage detectors are used for microprocessor monitoring, and when the power voltage reaches the detect voltage or an L→H pulse is not input to the watchdog pin within the watchdog timeout time, an L level signal is output from the RESETB pin.

The XC6131 series has a watchdog ON/OFF function. By setting the EN pin to L level, the watchdog function can be turned OFF while the voltage detector that monitors the power voltage continues to operate.

The MRB pin and EN pin are pulled up internally to VIN, and thus these pins can be left open when not used.

Feature

Operating Ambient Temperature -40℃~+125℃
Operating Voltage Range 1.5V~6.0V
Detect Voltage Range 1.6V~5.0V±1.0%
Hysteresis Width VDFL×5%
Detect Voltage Temperature Characteristics ±50ppm/℃
Output Configuration N-channel open drain
Low Quiescent Current 8.1μADetect
9.8μARelease
2.5μARelease(EN=L)
Functions Watchdog ON/OFF Function
Watchdog Timeout Period 100ms(Cd=0.1μF)
Release Delay Time 100ms(Cd=0.1μF) (Power-on State)
10ms (Cd=0.1μF) (After Watchdog Timeout)
Environmentally Friendly EU RoHS compliant, Pb free

Typical Application Circuit

Technical Document

Packages

Package Number of Pins Pcs/Reel Package Size(mm)
DFN1515-6A 6 5,000 1.5 x 1.5 x 0.38
SOT-26 6 3,000 2.8 x 2.9 x 1.3

XC6131 Series Part Numbers

Part number Sample Type Detect Voltage Detect Accuracy Packages EDA Online Store
XC6131A161MR-G EN pin With pull up resistor 1.6V ±1% SOT-26
XC6131A171MR-G EN pin With pull up resistor 1.7V ±1% SOT-26
XC6131A181MR-G EN pin With pull up resistor 1.8V ±1% SOT-26
XC6131A191MR-G EN pin With pull up resistor 1.9V ±1% SOT-26
XC6131A201MR-G EN pin With pull up resistor 2.0V ±1% SOT-26
XC6131A211MR-G EN pin With pull up resistor 2.1V ±1% SOT-26
XC6131A221MR-G EN pin With pull up resistor 2.2V ±1% SOT-26
XC6131A231MR-G EN pin With pull up resistor 2.3V ±1% SOT-26
XC6131A241MR-G EN pin With pull up resistor 2.4V ±1% SOT-26
XC6131A251MR-G EN pin With pull up resistor 2.5V ±1% SOT-26
XC6131A261MR-G EN pin With pull up resistor 2.6V ±1% SOT-26
XC6131A271MR-G EN pin With pull up resistor 2.7V ±1% SOT-26
XC6131A281MR-G EN pin With pull up resistor 2.8V ±1% SOT-26
XC6131A291MR-G EN pin With pull up resistor 2.9V ±1% SOT-26
XC6131A301MR-G EN pin With pull up resistor 3.0V ±1% SOT-26
XC6131A311MR-G EN pin With pull up resistor 3.1V ±1% SOT-26
XC6131A321MR-G EN pin With pull up resistor 3.2V ±1% SOT-26
XC6131A331MR-G EN pin With pull up resistor 3.3V ±1% SOT-26
XC6131A341MR-G EN pin With pull up resistor 3.4V ±1% SOT-26
XC6131A351MR-G EN pin With pull up resistor 3.5V ±1% SOT-26
XC6131A361MR-G EN pin With pull up resistor 3.6V ±1% SOT-26
XC6131A371MR-G EN pin With pull up resistor 3.7V ±1% SOT-26
XC6131A381MR-G EN pin With pull up resistor 3.8V ±1% SOT-26
XC6131A391MR-G EN pin With pull up resistor 3.9V ±1% SOT-26
XC6131A401MR-G EN pin With pull up resistor 4.0V ±1% SOT-26
XC6131A411MR-G EN pin With pull up resistor 4.1V ±1% SOT-26
XC6131A421MR-G EN pin With pull up resistor 4.2V ±1% SOT-26
XC6131A431MR-G EN pin With pull up resistor 4.3V ±1% SOT-26
XC6131A441MR-G EN pin With pull up resistor 4.4V ±1% SOT-26
XC6131A451MR-G EN pin With pull up resistor 4.5V ±1% SOT-26
XC6131A461MR-G EN pin With pull up resistor 4.6V ±1% SOT-26
XC6131A471MR-G EN pin With pull up resistor 4.7V ±1% SOT-26
XC6131A481MR-G EN pin With pull up resistor 4.8V ±1% SOT-26
XC6131A491MR-G EN pin With pull up resistor 4.9V ±1% SOT-26
XC6131A501MR-G EN pin With pull up resistor 5.0V ±1% SOT-26
XC6131A16AMR-G EN pin With pull up resistor 1.6V ±1.5% SOT-26
XC6131A17AMR-G EN pin With pull up resistor 1.7V ±1.5% SOT-26
XC6131A18AMR-G EN pin With pull up resistor 1.8V ±1.5% SOT-26
XC6131A19AMR-G EN pin With pull up resistor 1.9V ±1.5% SOT-26
XC6131A20AMR-G EN pin With pull up resistor 2.0V ±1.5% SOT-26
XC6131A21AMR-G EN pin With pull up resistor 2.1V ±1.5% SOT-26
XC6131A22AMR-G EN pin With pull up resistor 2.2V ±1.5% SOT-26
XC6131A23AMR-G EN pin With pull up resistor 2.3V ±1.5% SOT-26
XC6131A24AMR-G EN pin With pull up resistor 2.4V ±1.5% SOT-26
XC6131A25AMR-G EN pin With pull up resistor 2.5V ±1.5% SOT-26
XC6131A26AMR-G EN pin With pull up resistor 2.6V ±1.5% SOT-26
XC6131A27AMR-G EN pin With pull up resistor 2.7V ±1.5% SOT-26
XC6131A28AMR-G EN pin With pull up resistor 2.8V ±1.5% SOT-26
XC6131A29AMR-G EN pin With pull up resistor 2.9V ±1.5% SOT-26
XC6131A30AMR-G EN pin With pull up resistor 3.0V ±1.5% SOT-26
XC6131A31AMR-G EN pin With pull up resistor 3.1V ±1.5% SOT-26
XC6131A32AMR-G EN pin With pull up resistor 3.2V ±1.5% SOT-26
XC6131A33AMR-G EN pin With pull up resistor 3.3V ±1.5% SOT-26
XC6131A34AMR-G EN pin With pull up resistor 3.4V ±1.5% SOT-26
XC6131A35AMR-G EN pin With pull up resistor 3.5V ±1.5% SOT-26
XC6131A36AMR-G EN pin With pull up resistor 3.6V ±1.5% SOT-26
XC6131A37AMR-G EN pin With pull up resistor 3.7V ±1.5% SOT-26
XC6131A38AMR-G EN pin With pull up resistor 3.8V ±1.5% SOT-26
XC6131A39AMR-G EN pin With pull up resistor 3.9V ±1.5% SOT-26
XC6131A40AMR-G EN pin With pull up resistor 4.0V ±1.5% SOT-26
XC6131A41AMR-G EN pin With pull up resistor 4.1V ±1.5% SOT-26
XC6131A42AMR-G EN pin With pull up resistor 4.2V ±1.5% SOT-26
XC6131A43AMR-G EN pin With pull up resistor 4.3V ±1.5% SOT-26
XC6131A44AMR-G EN pin With pull up resistor 4.4V ±1.5% SOT-26
XC6131A45AMR-G EN pin With pull up resistor 4.5V ±1.5% SOT-26
XC6131A46AMR-G EN pin With pull up resistor 4.6V ±1.5% SOT-26
XC6131A47AMR-G EN pin With pull up resistor 4.7V ±1.5% SOT-26
XC6131A48AMR-G EN pin With pull up resistor 4.8V ±1.5% SOT-26
XC6131A49AMR-G EN pin With pull up resistor 4.9V ±1.5% SOT-26
XC6131A50AMR-G EN pin With pull up resistor 5.0V ±1.5% SOT-26
XC6131B161MR-G ENB pin With pull down resistor 1.6V ±1% SOT-26
XC6131B171MR-G ENB pin With pull down resistor 1.7V ±1% SOT-26
XC6131B181MR-G ENB pin With pull down resistor 1.8V ±1% SOT-26
XC6131B191MR-G ENB pin With pull down resistor 1.9V ±1% SOT-26
XC6131B201MR-G ENB pin With pull down resistor 2.0V ±1% SOT-26
XC6131B211MR-G ENB pin With pull down resistor 2.1V ±1% SOT-26
XC6131B221MR-G ENB pin With pull down resistor 2.2V ±1% SOT-26
XC6131B231MR-G ENB pin With pull down resistor 2.3V ±1% SOT-26
XC6131B241MR-G ENB pin With pull down resistor 2.4V ±1% SOT-26
XC6131B251MR-G ENB pin With pull down resistor 2.5V ±1% SOT-26
XC6131B261MR-G ENB pin With pull down resistor 2.6V ±1% SOT-26
XC6131B271MR-G ENB pin With pull down resistor 2.7V ±1% SOT-26
XC6131B281MR-G ENB pin With pull down resistor 2.8V ±1% SOT-26
XC6131B291MR-G ENB pin With pull down resistor 2.9V ±1% SOT-26
XC6131B301MR-G ENB pin With pull down resistor 3.0V ±1% SOT-26
XC6131B311MR-G ENB pin With pull down resistor 3.1V ±1% SOT-26
XC6131B321MR-G ENB pin With pull down resistor 3.2V ±1% SOT-26
XC6131B331MR-G ENB pin With pull down resistor 3.3V ±1% SOT-26
XC6131B341MR-G ENB pin With pull down resistor 3.4V ±1% SOT-26
XC6131B351MR-G ENB pin With pull down resistor 3.5V ±1% SOT-26
XC6131B361MR-G ENB pin With pull down resistor 3.6V ±1% SOT-26
XC6131B371MR-G ENB pin With pull down resistor 3.7V ±1% SOT-26
XC6131B381MR-G ENB pin With pull down resistor 3.8V ±1% SOT-26
XC6131B391MR-G ENB pin With pull down resistor 3.9V ±1% SOT-26
XC6131B401MR-G ENB pin With pull down resistor 4.0V ±1% SOT-26
XC6131B411MR-G ENB pin With pull down resistor 4.1V ±1% SOT-26
XC6131B421MR-G ENB pin With pull down resistor 4.2V ±1% SOT-26
XC6131B431MR-G ENB pin With pull down resistor 4.3V ±1% SOT-26
XC6131B441MR-G ENB pin With pull down resistor 4.4V ±1% SOT-26
XC6131B451MR-G ENB pin With pull down resistor 4.5V ±1% SOT-26
XC6131B461MR-G ENB pin With pull down resistor 4.6V ±1% SOT-26
XC6131B471MR-G ENB pin With pull down resistor 4.7V ±1% SOT-26
XC6131B481MR-G ENB pin With pull down resistor 4.8V ±1% SOT-26
XC6131B491MR-G ENB pin With pull down resistor 4.9V ±1% SOT-26
XC6131B501MR-G ENB pin With pull down resistor 5.0V ±1% SOT-26
XC6131B16AMR-G ENB pin With pull down resistor 1.6V ±1.5% SOT-26
XC6131B17AMR-G ENB pin With pull down resistor 1.7V ±1.5% SOT-26
XC6131B18AMR-G ENB pin With pull down resistor 1.8V ±1.5% SOT-26
XC6131B19AMR-G ENB pin With pull down resistor 1.9V ±1.5% SOT-26
XC6131B20AMR-G ENB pin With pull down resistor 2.0V ±1.5% SOT-26
XC6131B21AMR-G ENB pin With pull down resistor 2.1V ±1.5% SOT-26
XC6131B22AMR-G ENB pin With pull down resistor 2.2V ±1.5% SOT-26
XC6131B23AMR-G ENB pin With pull down resistor 2.3V ±1.5% SOT-26
XC6131B24AMR-G ENB pin With pull down resistor 2.4V ±1.5% SOT-26
XC6131B25AMR-G ENB pin With pull down resistor 2.5V ±1.5% SOT-26
XC6131B26AMR-G ENB pin With pull down resistor 2.6V ±1.5% SOT-26
XC6131B27AMR-G ENB pin With pull down resistor 2.7V ±1.5% SOT-26
XC6131B28AMR-G ENB pin With pull down resistor 2.8V ±1.5% SOT-26
XC6131B29AMR-G ENB pin With pull down resistor 2.9V ±1.5% SOT-26
XC6131B30AMR-G ENB pin With pull down resistor 3.0V ±1.5% SOT-26
XC6131B31AMR-G ENB pin With pull down resistor 3.1V ±1.5% SOT-26
XC6131B32AMR-G ENB pin With pull down resistor 3.2V ±1.5% SOT-26
XC6131B33AMR-G ENB pin With pull down resistor 3.3V ±1.5% SOT-26
XC6131B34AMR-G ENB pin With pull down resistor 3.4V ±1.5% SOT-26
XC6131B35AMR-G ENB pin With pull down resistor 3.5V ±1.5% SOT-26
XC6131B36AMR-G ENB pin With pull down resistor 3.6V ±1.5% SOT-26
XC6131B37AMR-G ENB pin With pull down resistor 3.7V ±1.5% SOT-26
XC6131B38AMR-G ENB pin With pull down resistor 3.8V ±1.5% SOT-26
XC6131B39AMR-G ENB pin With pull down resistor 3.9V ±1.5% SOT-26
XC6131B40AMR-G ENB pin With pull down resistor 4.0V ±1.5% SOT-26
XC6131B41AMR-G ENB pin With pull down resistor 4.1V ±1.5% SOT-26
XC6131B42AMR-G ENB pin With pull down resistor 4.2V ±1.5% SOT-26
XC6131B43AMR-G ENB pin With pull down resistor 4.3V ±1.5% SOT-26
XC6131B44AMR-G ENB pin With pull down resistor 4.4V ±1.5% SOT-26
XC6131B45AMR-G ENB pin With pull down resistor 4.5V ±1.5% SOT-26
XC6131B46AMR-G ENB pin With pull down resistor 4.6V ±1.5% SOT-26
XC6131B47AMR-G ENB pin With pull down resistor 4.7V ±1.5% SOT-26
XC6131B48AMR-G ENB pin With pull down resistor 4.8V ±1.5% SOT-26
XC6131B49AMR-G ENB pin With pull down resistor 4.9V ±1.5% SOT-26
XC6131B50AMR-G ENB pin With pull down resistor 5.0V ±1.5% SOT-26

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