Single differential comparator in a small SOT-23-5
Input offset voltage is specified at 5mV maximum at 5V, and input bias current maxes at 0.25µA at 5V — both typical for a general-purpose differential comparator in this class. The single-element layout means you get one comparator in a five-pin SOT-23 footprint, useful when you need exactly one threshold detector on a dense board and a dual or quad package would waste space.
Open-collector output — pull-up resistor and logic translation
The output is open collector, so it sinks current only. A pull-up resistor to the logic supply rail is required. The output can sink up to 20mA typical.
Package and footprint — SOT-23-5 for dense boards
The TLV1391IDBVT ships in the SOT-753 package, with a supplier device package of SOT-23-5. That is a five-pin SOT-23 footprint.
Lifecycle and compliance — active, no LTB pressure
The TLV1391IDBVT carries an Active lifecycle status, meaning Texas Instruments continues to manufacture and support the part. There is no last-time-buy window to track, and no imminent obsolescence risk for production programs. It is ROHS3 compliant, so it meets the current EU RoHS directive without exemption. For BOM freeze purposes, this part can be designed in without worrying about a near-term EOL notice.