The SP690A/692A/802L/802M/805L/805M are a family of microprocessor (µP) supervisory circuits that integrate a myriad of components involved in discrete solutions to monitor power-supply and battery-control functions in µP and digital systems. The series will significantly improve system reliability and operational efficiency when compared to discrete solutions. The features of the SP690A/692A/802L/802M/805L/805M include a watchdog timer, a µP reset and backup-battery switchover, and power-failure warning, a complete µP monitoring and watchdog solution. The series is ideal for applications in automotive systems, computers, controllers, and intelligent instruments. All designs where it is critical to monitor the power supply to the µP and it’s related digital components will find the series to be an ideal solution.
The Sipex SP690A/692A/802L/802M/805L/805M family provides low‑power microprocessor supervisory functions, including voltage monitoring, reset generation, watchdog timer and battery‑switch‑over. The handbook details features, electrical characteristics, pin assignments and typical performance curves.
Additional sections cover package dimensions, ordering information and recommended lead‑free packaging options, helping designers integrate the devices into automotive, computer and instrumentation applications.
| Operating Voltage Range | 0 V to 5.5 V |
|---|---|
| Supply Current (Normal Mode) | 35 µA to 60 µA |
| Reset Threshold (SP690A, SP802L, SP805L) | 4.50 V to 4.75 V |
| Watchdog Timeout | 1.0 s to 1.6 s (SP805 only 2.25 s) |
The reset pulse width is specified as 140 ms to 280 ms, with a typical value of 200 ms.
The watchdog timer times out after 1.0 s to 1.6 s, depending on the device version.
The device can source up to 250 mA in normal (VCC) mode.