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Si8271BB-IS Datasheet(PDF) 9 Page - Silicon Laboratories |
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Si8271BB-IS Datasheet(HTML) 9 Page - Silicon Laboratories |
9 / 43 page Table 2.2. Si827x Family Truth Table1 Si8271 (Single Driver) Truth Table Inputs VDDI State Enable Output Notes VI VO+ VO– L Powered H Hi–Z L H Powered H H Hi–Z X2 Unpowered X Hi–Z L X Powered L Hi–Z L Si8273 (High-Side/Low-Side) Truth Table Inputs VDDI State Enable Output Notes VIA VIB VOA VOB L L Powered H L L L H Powered H L H H L Powered H H L H H Powered H L L Invalid state. X2 X2 Unpowered X L L Output returns to input state within 7 µs of VDDI power restoration. X X Powered L L L Device is disabled. Si8274 (PWM Input High-Side/Low-Side) Truth Table PWM Input VDDI State Enable Output Notes VOA VOB H Powered H H L L Powered H L H X2 Unpowered X L L Output returns to input state within 7 µs of VDDI power restoration. X Powered L L L Device is disabled. Si8275 (Dual Driver) Truth Table Inputs VDDI State Enable Output Notes VIA VIB VOA VOB L L Powered H L L L H Powered H L H H L Powered H H L H H Powered H H H X2 X2 Unpowered X L L Output returns to input state within 7 µs of VDDI power restoration. X X Powered L L L Device is disabled. 1. This truth table assumes VDDA and VDDB are powered. If VDDA and VDDB are below UVLO, see 2.6.2 Undervoltage Lockout for more information. 2. An input can power the input die through an internal diode if its source has adequate current. Si827x Data Sheet System Overview silabs.com | Smart. Connected. Energy-friendly. Preliminary Rev. 0.5 | 8 |
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