OUTLINE
The R3111x series are CMOS-based voltage detector ICs with high
detector threshold accuracy and ultra-low supply current, which can
be operated at an extremely low voltage and is used for system
reset as an example. Each of these ICs consists of a voltage
reference unit, a comparator, resistors for detector threshold
setting, an output driver and a hysteresis circuit. The detector
threshold is fixed with high accuracy internally and does not
require any adjustment.
Three output types, Nch open drain “L” type, Nch open drain “H”
type and CMOS type are available. The R3111x Series are operable at
a lower voltage than that for the Rx5VL series, and can be driven
by a single battery.
Six types of packages, TO-92, SOT-89, SOT-23-3, SOT-23-5, SC-82AB,
and SON1612-6 are available.
FEATURES
• Supply Current
......................................................................Typ.
0.8µA (VDD=1.5V)
• Range of Operating
Voltage..................................................0.7V to
10.0V (Topt=25°C)
• Detector
Threshold................................................................0.9V
to 6.0V
• Accuracy Detector
Threshold................................................±2.0%
• Temperature-Drift Coefficient of Detector Threshold
............Typ. ±100ppm/°C
• Output
Types.........................................................................Nch
Open Drain “L”, Nch Open Drain “H”, and CMOS
• Packages
..............................................................................TO-92,
SOT-89, SOT-23-3, SOT-23-5, SC-82AB, SON1612-6
APPLICATIONS
• CPU and Logic Circuit Reset
• Battery Checker
• Window Comparator
• Wave Shaping Circuit
• Battery Back-up Circuit
• Power Failure Detector
