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PI3421-00-LGIZ Datasheet(PDF) 10 Page - Vicor Corporation |
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PI3421-00-LGIZ Datasheet(HTML) 10 Page - Vicor Corporation |
10 / 30 page Cool-Power® Rev 1.3 vicorpower.com Page 10 of 30 12/2015 800 927.9474 PI34xx-00 PI3421-00-LGIZ (1.8 VOUT) Electrical Characteristics Specifications apply for -40°C < TJ < 125°C, VIN =12 V, L1 = 125 nH (Note 1) unless other conditions are noted. Parameter Symbol Conditions Min Typ Max Unit Timing Switching Frequency fS Note [6] 550 kHz Fault Restart Delay tFR_DLY 30 ms Sync In (SYNCI) Synchronization Frequency Range ∆fSYNCI Relative to set switching frequency. Note [3] 50 110 % SYNCI Threshold VSYNCI 2.5 V Sync Out (SYNCO) SYNCO High VSYNCO_HI Source 1mA 4.5 V SYNCO Low VSYNCO_LO Sink 1mA 0.5 V SYNCO Rise Time tSYNCO_RT 20pF load 10 ns SYNCO Fall Time tSYNCO_FT 20pF load 10 ns Soft Start And Tracking TRK Active Input Range VTRK Internal reference tracking range. 0 1.2 V TRK Max Output Voltage VTRK_MAX 1.2 V TRK Disable Threshold VTRK_OV 20 40 60 mV Charge Current (Soft–Start) ITRK -70 -50 -30 µA Discharge Current (Fault) ITRK_DIS 6.8 mA Soft-Start Time tSS CTRK = 0uF 2.2 ms Enable High Threshold VEN_HI 0.9 1 1.1 V Low Threshold VEN_LO 0.7 0.8 0.9 V Threshold Hysteresis VEN_HYS 100 200 300 mV Enable Pull-Up Voltage VEN_PU With positive logic EN polarity 2 V (floating, unfaulted) Enable Pull-Down Voltage VEN_PD With negative logic EN polarity 0 V (floating, faulted) Source Current IEN_SO With positive logic EN polarity -50 uA Sink Current IEN_SK With negative logic EN polarity 50 uA [1] All parameters reflect regulator and inductor system performance. Measurements were made using a standard PI34xx-00 evaluation board with 3 x 4” dimensions and 4 layer, 2oz copper. Refer to inductor pairing table within Application Description section for specific inductor manufacturer and value. [2] Regulator is assured to meet performance specifications by design, test correlation, characterization, and/or statistical process control. [3] Output current capability may be limited and other performance may vary from noted electrical characteristics when switching frequency or VOUT is modified. [4] Refer to Output Ripple plots. [5] Refer to Load Current vs. Ambient Temperature curves. [6] Refer to Switching Frequency vs. Load current curves. |
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