Nisshinbo R3119 36V Input Voltage Detectors

Nisshinbo R3119 36V Input Voltage Detectors are CMOS-based input voltage detector ICs designed to detect up to 12V without a divider resistor, making the devices ideal for digital home appliances. The R3119 series is offered in a variant with a C_D pin for setting output delay and a variant with a SENSE pin. The R3119 modules provide a 3.3μA supply current and a fixed detector threshold, which can be set with a 0.1V step across a 2.3V to 12.0V range. The devices feature a 1.5% detector threshold accuracy, and the output type is N-channel, open-drain type. Nisshinbo R3119 36V Input Voltage Detectors are available in halogen-free, RoHS-compliant SOT-23-5 and DFN(PLP)1820-6 packages. Suitable applications include consumer, industrial, and automotive.

Features

Operating voltage ranges
- R3119xA (CD pin type): 1.2V to 36.0V, 50.0V maximum
- R3119xE (SENSE pin type): 2.1V to 6.0V, 7.0V maximum
Operating temperature ranges
- Consumer: -40°C to +105°C
- Industrial: -50°C to +105°C
- Automotive: -40°C to +105°C
3.3µA typical supply current
2.3V to 12.0V detector threshold range (0.1V steps)

±1.5% detector threshold accuracy (Ta = +25°C)
±100ppm/°C typical detector threshold temperature coefficient
Output delay time (R3119xA): 85ms (at CD= 0.01µF)
Output delay time accuracy (R3119xA): -50% to 80%
N-channel, open drain output type
Package options
- DFN(PLP)1820-6 (1.8mm × 1.2mm)
- SOT-23-5 (2.9mm × 2.8mm)
Lead free, halogen free, and RoHS compliant

Applications

Consumer
- CPUs and logic circuit reset
- Battery checkers
- Battery back-up circuits
- Power failure detector for digital home appliances
Supervisory circuits for automotive general equipment such as electric windows, side mirrors, and around-view cameras

Industrial
- Smart meters
- Surveillance cameras and vending machines
- Equipment accompanied by self-heating, such as motors and lighting
- Industrial equipment used in extremely cold districts or low-temperature environments