0
ACTIVE
Rating |
Catalog |
Number of supplies monitored |
3, 4 |
Threshold voltage 1 (typ) (V) |
0.4 |
Features |
Manual reset capable, Negative voltage monitoring, Separate VDD & sense, Timeout watchdog, Undervoltage and overvoltage monitor, Watchdog timer |
Reset threshold accuracy (%) |
0.5 |
Iq (typ) (mA) |
0.011 |
Output driver type/reset output |
Active-low, Push-Pull |
Time delay (ms) |
20, 300 |
Watchdog timer WDI (s) |
0.6 |
Supply voltage (min) (V) |
1.8 |
Supply voltage (max) (V) |
6.5 |
Operating temperature range (°C) |
-40 to 125 |
VQFN (RGP)-20-16 mm² 4 x 4
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.
WELL LINK CHIPS GROUP CO.,LIMITED FLAT/RM 1802 BEVERLY HOUSE 93-107 LOCKHART ROAD WANCHAI HK
