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L9660 Datasheet(PDF) 12 Page - STMicroelectronics |
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L9660 Datasheet(HTML) 12 Page - STMicroelectronics |
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12 / 49 page  Electrical specifications L9660 12/49 DocID024714 Rev 2 tDIAGTIMEOUT Diagnostic delay time From/CS until Test Results are Valid, Output voltage change 0V to VDD * 0.72 CSQHx= 0.12µF CSQLx= 0.12µF -- 300 µs High side safing diagnostics ISRC_HSS Diagnostic current into selected VRESx pin during test Normal conditions 710 - 950 µA IHSS_4 Current during diagnostic All 4 VRESx pins tied together 710 - 1020 µA RHSSNORM_t h Normal resistance range when running high side safing diagnostics All 4 VRESx pins tied together 1.4 - 2.5 k VHSSNORM_r ange Normal voltage range between VSDIAG and VRESx pin) when running high side safing diagnostics All 4 VRESx pins tied together 1.0 - 2.5 V VHSSSHORT_t h Short voltage threshold between VSDIAG and VRESx pin) All 4 VRESx pins tied together 0.5 - 1.0 V VHSSOPEN_th Open voltage threshold between VSDIAG and VRESx pin) All 4 VRESx pins tied together 2.5 - 4.0 V tDIAGTIMEOUT Diagnostic delay time From/CS until test results are valid, CSQHx= 0.12µF CSQLx= 0.12µF - - 500 µs Voltage measurement diagnostics (VRESx) IRESx Max diagnostic current into VRESx pin Normal Conditions - - 50 µA VVRESXLO_th Low voltage threshold for VRESx pin -5.0 - 7 V VVRESXHI_th High voltage threshold for VRESx pin - 13.7 - 18.0 V tDIAGTIMEOUT Diagnostic delay time From/CS until test results are valid. - - 100 µs MOS diagnostics I_MOS MOS test max current Normal conditions - - ISVRCM mA tSHUTOFF LS/HS MOS turn off under fault condition Time is measured from the valid LS/ HS MOS current > 100mA to the LS/HS turn off -- 4 µs Table 7. Squib deployment drivers and diagnostics - DC electrical characteristics (continued) Symbol Parameter Test condition Min. Typ. Max. Unit |
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