The R3112x series low voltage detector has a built-in high precision output delay circuit and extremely low supply current, which can operate at an extremely low voltage. For example, it is used for system reset. Each of these ICs consists of a voltage reference unit, a comparator, resistor net for detector threshold setting, an output driver, a hysteresis circuit, and an output delay 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. Three types of packages, SOT-23-5, small SC-82AB, SC-88A and ultra-small SON1612-6 can be selected so that high density mounting on boards is possible.
The R3112x Series are CMOS-based voltage detector ICs designed with high detector threshold accuracy and ultra-low supply current. They operate at extremely low voltages (0.7V to 6.0V) and are suitable for applications such as CPU and logic circuit reset, battery checkers, and power failure detectors. The series includes an output delay circuit and is available in Nch open drain or CMOS output types.
| Operating Voltage Range | 0.7 to 6.0V |
|---|---|
| Supply Current | Typ. 0.5nA |
| Temperature-Drift Coefficient | Typ. ±100ppm/°C |
| Output Delay Time (Typical) | 100ms with 0.022uF capacitor |
| Detector Threshold Range | 0.9V to 5.0V (0.1V steps) |
| Operating Temperature Range | -40 to 85 °C |
The series offers two output types: Nch open drain type and CMOS type.
Three package types are available: SON1612-6, SC-82AB, SC-88A, and SOT-23-5.
The maximum operating voltage is 6.0V.