0
ACTIVE
Rating |
Catalog |
Number of supplies monitored |
1 |
Threshold voltage 1 (typ) (V) |
2.93, 4.55 |
Features |
Battery backup switchover, Manual reset capable, PFI/PFO, Separate VDD & sense, Undervoltage monitor only |
Reset threshold accuracy (%) |
2.4 |
Iq (typ) (mA) |
0.04 |
Output driver type/reset output |
Active-low, Push-Pull |
Time delay (ms) |
100 |
Watchdog timer WDI (s) |
None |
Supply voltage (min) (V) |
1.65 |
Supply voltage (max) (V) |
5.5 |
Operating temperature range (°C) |
-40 to 85 |
VSSOP (DGK)-8-14.7 mm² 3 x 4.9
All other trademarks are the property of their respective owners
The TPS3619 and TPS3620 families of supervisory circuits monitor and control processor activity by providing backup-battery switchover for data retention of CMOS RAM.
During power on, RESET is asserted when the supply voltage (VDD or VBAT) becomes higher than 1.1 V. Thereafter, the supply voltage supervisor monitors VDD and keeps RESET output active as long as VDD remains below the threshold voltage (VIT). An internal timer delays the return of the output to the inactive state (high) to ensure proper system reset. The delay time starts after VDD has risen above VIT. When the supply voltage drops below VIT, the output becomes active (low) again.
The product spectrum is designed for supply voltages of 3.3 V and 5 V. The TPS3619 and TPS3620 are available in an 8-pin MSOP package and are characterized for operation over a temperature range of
40°C to +85°C.
WELL LINK CHIPS GROUP CO.,LIMITED FLAT/RM 1802 BEVERLY HOUSE 93-107 LOCKHART ROAD WANCHAI HK
