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SI3459 Datasheet(PDF) 6 Page - Silicon Laboratories |
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SI3459 Datasheet(HTML) 6 Page - Silicon Laboratories |
6 / 57 page Si3459 6 Rev. 1.1 Classification Mark Specifications Mark Voltage VMARK IPORT = 0 mA –10 — — V IPORT =5 mA — — –7 V Output Voltage Sense Threshold Voltage for Power Good Sense VPGOOD Measured at VDRAINn to AGND 1 — 3 V Bias Current of DRAINn Pin IDRAINn VDRAINn =0V — –25 — µA Current Sense Sense resistor value RSENSE 1% tolerance 0.2475 0.25 0.2525 Sense Voltage at Current Limit VILIM VSENSEn–VKSENSEn 1x Power Mode 100 106.25 112.5 mV VSENSEn–VKSENSEn 2x Power Mode 200 212.5 225 mV DC Disconnect Sense Voltage VDC_MIN VSENSEn – VKSENSEn 1.25 1.875 2.5 mV SENSEn Pin Bias Current ISENSE VSENSEn – AGND — –1 — µA MOSFET Gate Drive Drive Current from GATEn Pin (Active) GATEn pin active VGATEn =AGND 1x Power Mode –60 –40 –20 µA Drive Current from GATEn Pin (Off) GATEn pin shut off VGATEn =AGND + 5 V —50 — mA Voltage Difference Between any GATEn and AGND Pin IGATEn =–1 µA 10.5 12 13 V Table 1. PSE Port Interface Recommended Operating Conditions1 (Continued) Parameter Symbol Test Condition Min Typ Max Unit Notes: 1. Port voltages are referenced with respect to VPWR. All other voltages are referenced with respect to GND. These specifications apply over the recommended operating voltage and temperature ranges of the device unless noted otherwise. Typical performance is for TA =25°C, VDD =AGND + 3.3 V, AGND and DGND = 0 V, and VPWR at 48 V. 2. For a description of the detailed behavior of VDD UVLO, see “4.2.2. Global Event Register and Global Event COR (0x02, 0x03)” . 3. Positive values indicate currents flowing into the device; negative currents indicate current flowing out of the device. |
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