The SGM858xQ is a windowed watchdog timer designed to monitor and reset the microcontroller unit (MCU). During power-up or under-voltage conditions, it generates a low-level reset signal to the MCU. In normal operation, the MCU must cyclically send trigger signals within a programmable time window (long/short window mode via MODE pin). The watchdog will issue a reset signal to the MCU under the occurrence of missing or faulty triggers of WDI. The SGM858AQ features a 5V power supply, and SGM858BQ features a 3.3V power supply.
The device is AEC-Q100 qualified (Automotive Electronics Council (AEC) standard Q100 Grade 1) and it is suitable for automotive applications.
The SGM858xQ is available in a Green SOIC-8 package.
- AEC-Q100 Qualified for Automotive Applications
Device Temperature Grade 1
TA = -40℃ to +125℃ - Functional Safety
- Available Documentation in the Design of Functional Safety Systems
- Windowed Watchdog Function
- Watchdog Disable Function
- Power-On Reset During Power-Up and Under-Voltage
- Programmable Short Window Mode or Long Window Mode
- Available in a Green SOIC-8 Package
Driver Monitoring
Automotive Telematics Control Unit
Digital Cockpit Processing Unit
On-Board & Wireless Charger (OBC)
ADAS Domain Controller
Microcontrollers and DSPs
