Texas Instruments TPS3805H33QDCKRQ1, Automotive AEC-Q100 Multi-Voltage Supervisor, Active Low, Push-Pull Output, 3.05V/Adj Threshold, 5µs Propagation Delay, -40°C~125°C, SC-70-5.
| Parameter | Value |
|---|---|
| Type | Multi-Voltage Supervisor |
| Series | Automotive, AEC-Q100 |
| Mounting | Surface Mount |
| Voltage - threshold | 3.05V, Adj |
| Number of voltages monitored | 2 |
| Operating temperature | -40°C~125°C(TA) |
| Reset | Active Low |
| Output | Push-Pull, Totem Pole |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Reset timeout | 5µs Typical Propagation Delay |
| Case | 5-TSSOP, SC-70-5, SOT-353 |
It monitors two supply voltages — one with a fixed 3.05V threshold, the second adjustable via an external resistor divider — and asserts a reset output when either rail drops below its threshold.
The typical propagation delay of 5µs — from a voltage fault to the reset output going active low — gives the system microcontroller a fast, deterministic shutdown signal before the rail collapses further.
Yes, the TPS3805H33QDCKRQ1 is part of the Automotive, AEC-Q100 series, meaning it has been qualified to the AEC-Q100 stress test standard for automotive-grade integrated circuits. This covers the temperature range, reliability, and quality levels required for production automotive electronics.
The difference is in the ordering code suffix — the 'Q1' designates AEC-Q100 automotive qualification. The TPS3805H33QDCKRQ1 is the automotive-grade variant; the TPS3805H33QDCKR (without Q1) is the commercial/industrial-grade version. Electrically they share the same thresholds and timing, but the Q1 variant carries the additional qualification and wider temperature range for automotive use.