Intel SR1520MLNA Product Specification - Page 18
Protection Circuits, Over-Current Limit OCP
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Power Sub-System Intel® Server System SR1520ML Notes: 1. 2. 3. 4. 5. 6. Maximum continuous total DC output power should not exceed 600W. Peak load on the combined 12 V output shall not exceed 49A. Maximum continuous load on the combined 12 V output shall not exceed 44A. Peak total DC output power should not exceed 650W. Peak power and current loading shall be supported for a minimum of 12 seconds. Combined 3.3V and 5V power shall not exceed 150W. 2.7 Protection Circuits Protection circuits inside the power supply shall cause only the power supply's main outputs to shutdown. If the power supply latches off due to a protection circuit tripping, an AC cycle OFF for 15 sec and a PSON# cycle HIGH for 1 sec shall be able to reset the power supply. 2.8 Over-Current Limit (OCP) The power supply shall have current limits to prevent the +3.3V, +5V, and +12V outputs from exceeding the values shown in the table below. If the current limits are exceeded, the power supply shall shutdown and latch off. The latch will be cleared by toggling the PSON# signal or by an AC power interruption. The power supply shall not be damaged from repeated power cycling in this condition. -12V and 5VSB shall be protected under over-current or shorted conditions so that no damage can occur to the power supply. 5Vsb will be auto-recovered after removing the OCP limit. Table 9. Over Current Protection (OCP) Voltage +3.3V +5V +12V1 +12V2 +12V3 +12V4 -12V 5VSB Over current Limit (Iout limit) 110% minimum (= 22A) ; 150% maximum (= 30A) 110% min (= 26.4A); 150% max (= 36A) 18A min; 20A max 18A min; 20A max 18A min; 20A max 18A min; 20A max 0.625A min; 2.0A max 6.0A max 10 Revision 1.0