Supply flexibility and output drive
The TL391BIDBVR runs on a single or dual supply from 3 V to 36 V, so it works on a 5 V logic rail, a 12 V industrial bus, or a 24 V battery line without a separate regulator. Its output stage accepts open-collector, CMOS, MOS, or TTL logic levels — the same part drives a microcontroller GPIO or a relay coil through a pull-up resistor. At 18 mA typical output current at 5 V, it can sink enough current to drive an LED indicator or a small optocoupler input directly.
Temperature range and sensing accuracy
Input offset voltage maxes at 2.5 mV at 36 V — tight enough for a window comparator in a battery undervoltage/overvoltage monitor without trimming. Maximum input bias current of 25 nA at 5 V means a 1 MΩ source resistor adds only 25 mV of offset error, preserving accuracy in high-impedance sensor interfaces like thermistors or photodiodes.
Speed and quiescent budget
Maximum quiescent current of 430 µA keeps the power budget low in battery-powered threshold detectors that run continuously.
Lifecycle and compliance status
RoHS3 compliant and free of the six restricted substances plus four phthalates, so it passes EU and California regulatory checks without an exemption.