Texas Instruments TPS37A543222DSKRQ1, Automotive AEC-Q100 Voltage Detector, 3.2V and 5.4V window thresholds, Active Low Open Drain output, 10-WFDFN Exposed Pad (10-WSON 2.5x2.5), -40°C to 125°C operating range.
| Parameter | Value |
|---|---|
| Type | Voltage Detector |
| Series | Automotive, AEC-Q100 |
| Mounting | Surface Mount |
| Voltage - threshold | 3.2V, 5.4V |
| Number of voltages monitored | 2 |
| Operating temperature | -40°C ~ 125°C (TA) |
| Reset | Active Low |
| Output | Open Drain, Open Drain |
| Package | Tape & Reel (TR) Cut Tape (CT) |
| Reset timeout | 100µs Maximum |
| Case | 10-WFDFN Exposed Pad |
The TPS37A543222DSKRQ1 is a Texas Instruments automotive voltage detector that monitors two independent rails with fixed window thresholds of 3.2V and 5.4V. The 100µs maximum reset timeout is fast enough to catch supply glitches before downstream logic corrupts state, but long enough to ignore noise on a clean rail.
Cut Tape options are available for prototyping or low-volume builds.
The device monitors two voltages with thresholds of 3.2V and 5.4V. These are fixed internal references — no external resistor divider sets the trip points.
The base product number is TPS37. The suffix DSKRQ1 indicates the 10-WSON package and automotive qualification. The DSKR variant (without Q1) is the non-automotive version. They are not drop-in replacements if the BOM requires AEC-Q100 certification.
The reset timeout is 100µs maximum. This is the period the output holds the reset signal low after the monitored voltage returns within the window.
Yes, it is part of the Automotive, AEC-Q100 series. The Q1 suffix in the order code confirms this qualification.