Xerox 4540 Service Manual - Page 247
Parameters From Power-On Sequence, SIL20C2 Module Turn-on time + Power Good delay
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TABLE E-1 Parameters From Power-On Sequence Parameter Description Value Units t_NEXT_RAIL Delay from one rail, Power Good to next rail, Enable 1 mS t_PSON_ON_DELAY Soft-start delay for LTC3733 300 mS t_HOTSWAP_GOOD Delay from Hotswap Enable to Hotswap Good 12.4 mS t_ATH26_DELAY ATH26 Module Turn-on time + Power Good delay 20 mS t_SIL20C2_DELAY SIL20C2 Module Turn-on time + Power Good delay 3 mS t_DDR_DELAY DDR Module Turn-on time + Power Good delay 40 mS t_LTC3025_DELAY LTC3025 Turn-on time + Power Good delay 1 mS t_IPM12_DELAY IPM12 Module Turn-on time + Power Good delay 25 mS t_VRM_DELAY SIL06 Module Turn-on time + Power Good delay 10 mS t_RESET_DELAY LTC2902 delay from voltage in spec to release of reset 210 mS line Appendix E Power Reset and Initialization Sequences E-3