ROHM BD52xx series Automotive AEC-Q100 Voltage Detector, BD5226G-2MTR, 2.6V threshold, Active Low, Open Drain, SC-74A SOT-753, -40°C to 105°C.
| Parameter | Value |
|---|---|
| Type | Voltage Detector |
| Series | Automotive, AEC-Q100, BD52xx |
| Mounting | Surface Mount |
| Voltage - threshold | 2.6V |
| Number of voltages monitored | 1 |
| Operating temperature | -40°C ~ 105°C (TA) |
| Reset | Active Low |
| Output | Open Drain or Open Collector |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Case | SC-74A, SOT-753 |
It also allows multiple detectors or watchdog outputs to share a common reset bus — a common trick on multi-rail automotive ECUs where one supervisor monitors the 3.3 V and another the 5 V rail, both driving the same MCU reset pin through a single pull-up resistor.
Yes, the output is open drain (open collector) with Active Low reset. This allows the reset line to be pulled up to a different voltage than the detector's supply, and supports wired-OR connections with other open-drain outputs.
A close functional alternative from ROHM is the BD45422G-TR, which also has an open-drain output and a similar package, but includes a 180 ms minimum reset timeout. The BD4929G-TR is another option but uses a push-pull output instead of open drain. Neither is a pin-to-pin drop-in — verify the threshold voltage, output type, and timeout before substituting.