OUTLINE

The R3113D 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.

Two output types, Nch open drain type and CMOS type are available.

Since the package is ultra-small SON1408-3 (MFPAK), high density mounting on board is possible .

FEATURES

• Ultra-low Supply Current ....................................Typ. 1.4µA (VDET>1.5V: VDD=VDET+1.0V)

• Wide Range of Operating Voltage ......................0.6V to 6.0V (VDET=3.0V, Topt=25°C)

• Detector Threshold .............................................Stepwise setting with a step of 0.1V in the range

from 1.2V to 4.5V is possible.

• High Accuracy Detector Threshold..............................................±2.0

• Low Temperature-Drift Coefficient of Detector Threshold...Typ. ±100ppm/°C

• Two Output Types ..............................................................................Nch Open Drain and CMOS

• Ultra-small Package..........................................................................SON1408-3

APPLICATIONS

• CPU and Logic Circuit Reset

• Battery Checker

• Window Comparator

• Wave Shaping Circuit

• Battery Back-up Circuit

• Power Failure Detector