SGM40666AS Overview
Description
The SGM40666AS and SGM40666BS are over-voltage protection devices designed to protect low voltage systems from damage with a high voltage supply up to +31VDC and +40VPEAK (10s with 50mA current limit). The SGM40666AS withstands +90V/-400V while the SGM40666BS can also withstand surges up to +80V/ -400V without damage.
Key Features
- Wide Power Supply Voltage Range: 2.5V to 28V
- Input Voltage up to 40V with 50mA Current Limit for 10s Duration
- Integrated Switch On-Resistance: 27mΩ (TYP)
- Wide Adjustable OVLO Threshold Range: 4V to 22V
- Internal Over-Voltage Protection Threshold: 6.79V (TYP)
- Surge Immunity SGM40666AS: Up to +90V/-400V Surge Immunity SGM40666BS: Up to +80V/-400V Surge Immunity
- 32.3V Clamping Circuit Trigger Threshold when Rising Slope > 4.5V/μs (SGM40666AS)
- 45V Clamping Circuit Trigger Threshold (SGM40666BS)
- Over-Voltage Shutdown Response: 50ns (TYP)
- Start-Up Debounce Time: 16.5ms
