The TPS3860x0 family of supply voltage supervisors (SVSs) can monitor four power rails that are greater than 0.4 V and one power rail less than 0.4 V (including negative voltage) with a 0.25% (typical) threshold accuracy. Each of the four supervisory circuits (SVS-n) assert a RESETn or RESETn output signal when the SENSEm input voltage drops below the programmed threshold. With external resistors, the threshold of each SVS-n can be programmed (where n = 1, 2, 3, 4 and m = 1, 2, 3, 4L, 4H).
Each SVS-n has a programmable delay before releasing RESETn or RESETn. The delay time can be set independently for each SVS from 1.4 ms to 10 s through the CTn pin connection. Only SVS-1 has an active-low manual reset (MR) input; a logic-low input to MR asserts RESET1 or RESET1.
SVS-4 monitors the threshold window using two comparators. The extra comparator can be configured as a fifth SVS to monitor negative voltage with voltage reference output VREF.
The TPS3860x0 has a very low quiescent current of 11 µA (typical) and is available in a small, 4-mm x 4-mm, VQFN-20 package.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | TPS386000 and TPS386040 Quad Supply Voltage Supervisors With Adjustable Delay and Watchdog Timer datasheet (Rev. F) | PDF | HTML | 03 Oct 2018 |
| Application note | Optimizing Resistor Dividers at a Comparator (Rev. B) | PDF | HTML | 30 Apr 2021 | |
| E-book | Voltage Supervisor and Reset ICs: Tips, Tricks and Basics | 28 Jun 2019 |
For additional terms or required resources, click any title below to view the detail page where available.
| Package | Pins | Download |
|---|---|---|
| VQFN (RGP) | 20 | View options |
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