Products - Watchdog Timer

XC6111-17 CMOS Voltage Detector

CMOS Voltage Detector image


Property XC6111-17
Type Watchdog & Manual Reset
Detect Voltage 1.6 ~ 5.0V
Accuracy ± 2%
Operating Voltage 1.0 ~ 6.0V
Supply Current 5µA(TYP.)
Output Open Drain CMOS
Packages SOT-25, USP-6C

Product Description

XC6111-17 CMOS Voltage Detector

  • XC6111 : Manual Reset & Watchdog
  • XC6112 : Manual Reset & Watchdog
  • XC6113 : Manual Reset & Watchdog
  • XC6114 : Watchdog
  • XC6115 : Watchdog
  • XC6116 : Manual Reset
  • XC6117 : Manual Reset
  • Hysteresis Range: VDF x 0.1% (Typ)

The XC6111~XC6117 series are a group of high-precision, low current consumption CMOS voltage detectors with manual reset and watchdog timer functions. The series consist of a reference voltage source, delay circuit, comparator, and output driver.
With a built-in delay circuit, the XC6111 ~ XC6117 series do not require any external components to output signals with release delay time. Moreover, with the manual reset function, reset can be asserted at any time.
The ICs produce two types of output; VDFL (low when detected) and VDFH (high when detected).
On the XC6111 ~ XC6115, the WD pin can be left open if the watchdog function is not needed.
Whenever the watchdog pin is opened, the internal counter clears before the watchdog timeout occurs.
Moreover, since the manual reset pin is internally pulled up to the VIN pin voltage level, the ICs can be used with the manual reset pin left unconnected if the pin is unused.
The detect voltages are internally fixed between 1.6V ~ 5.0V in increments of 100mV, using laser trimming technology.
Six watchdog timeout period settings are available in a range from 6.25msec to 1.6sec and seven release delay times are available in a range from 3.13msec to 1.6sec.


  • Detect Voltage Range: 1.6V~5.0V
  • Operating Voltage Range: 1.0V~6.0V
  • Hysteresis Range: VDF x 0.1% (Typ)
  • Output Configuration: N-Channel Open Drain, CMOS
  • SOT-25 & USP-6C Packages


XC6111 Typical Application Circuit