Battery backup circuit featuring a 4.65V reset function, battery switchover, and a watchdog timer. Monitors a single voltage with a reset threshold between 4.5V and 4.73V. Operates with a maximum supply voltage of 5.5V and a typical supply current of 1.95mA. Housed in a DIP package for through-hole mounting, with an operating temperature range of -40°C to 85°C. Includes a 70ms reset delay and a 35ms reset timeout.
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Analog Devices ADM690SQ technical specifications.
| Package/Case | DIP |
| Lead Free | Contains Lead |
| Max Operating Temperature | 85°C |
| Min Operating Temperature | -40°C |
| Max Power Dissipation | 400mW |
| Max Reset Threshold Voltage | 4.73V |
| Min Reset Threshold Voltage | 4.5V |
| Max Supply Current | 1.95mA |
| Max Supply Voltage | 5.5V |
| Min Supply Voltage | 4.75V |
| Mount | Through Hole |
| Number of Elements | 1 |
| Number of Monitored Inputs | 1 |
| Number of Voltages Monitored | 1 |
| Operating Supply Current | 1.95mA |
| Output | TOTEM-POLE |
| Overvoltage Threshold | 5V |
| Package Quantity | 48 |
| Packaging | Rail/Tube |
| Power Dissipation | 500mW |
| Radiation Hardening | No |
| Reset | Active Low |
| Reset Delay Time | 70ms |
| Reset Timeout | 35ms |
| RoHS Compliant | No |
| Supply Current | 1.95mA |
| Threshold Voltage | 4.65V |
| Type | Battery Backup Circuit |
| Undervoltage Threshold | 1.3V |
| Watchdog Timer | Yes |
| RoHS | Not CompliantNo |
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