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BCM384X120Y800ACZ Datasheet(PDF) 6 Page - Vicor Corporation |
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BCM384X120Y800ACZ Datasheet(HTML) 6 Page - Vicor Corporation |
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6 / 25 page  BCM® Bus Converter Rev 1.2 vicorpower.com Page 6 of 25 07/2015 800 927.9474 BCM384x120y800ACz Electrical Specifications (Cont.) Specifications apply over all line and load conditions, unless otherwise noted; Boldface specifications apply over the temperature range of -40°C ≤ TINTERNAL ≤ 125°C (T-Grade); All other specifications are at TINTERNAL = 25ºC unless otherwise noted. Attribute Symbol Conditions / Notes Min Typ Max Unit General Powetrain PRIMARY to SECONDARY Specification (Forward Direction) Cont. Effective Primary Capacitance (Internal) CPRI_INT Effective Value at 384 VPRI_DC 0.25 µF Effective Secondary Capacitance (Internal) CSEC_INT Effective Value at 12 VSEC_DC 104 µF Effective Secondary Output Capacitance (External) CSEC_OUT_EXT Excessive capacitance may drive module into SC protection 1000 µF Effective Secondary Output Capacitance (External) CSEC_OUT_AEXT CSEC_OUT_AEXT Max = N * 0.5 * CSEC_OUT_EXT MAX, where N = the number of units in parallel Protection PRIMARY to SECONDARY (Forward Direction) Auto Restart Time tAUTO_RESTART Startup into a persistent fault condition. Non-Latching fault detection given VPRI_DC > VPRI_UVLO+ 292.5 357.5 ms Primary Overvoltage Lockout Threshold VPRI_OVLO+ 420 434.5 450 V Primary Overvoltage Recovery Threshold VPRI_OVLO- 410 424 440 V Primary Overvoltage Lockout Hysteresis VPRI_OVLO_HYST 10.5 V Primary Overvoltage Lockout Response Time tPRI_OVLO 100 µs Primary Undervoltage Lockout Threshold VPRI_UVLO- 195 221 250 V Primary Undervoltage Recovery Threshold VPRI_UVLO+ 225 243 255 V Primary Undervoltage Lockout Hysteresis VPRI_UVLO_HYST 15 V Primary Undervoltage Lockout Response Time tPRI_UVLO 100 µs Primary Undervoltage Startup Delay tPRI_UVLO+_DELAY From VPRI_DC = VPRI_UVLO+ to powertrain active, EN floating, (i.e One time Startup delay form application of VPRI_DC to VSEC_DC) 20 ms Primary Soft-Start Time tPRI_SOFT-START From powertrain active. Fast Current limit protection disabled during Soft-Start 1 ms Secondary Output Overcurrent Trip Threshold ISEC_OUT_OCP 75 85 110 A Secondary Output Overcurrent Response Time Constant tSEC_OUT_OCP Effective internal RC filter 3 ms Secondary Output Short Circuit Protection Trip Threshold ISEC_OUT_SCP 105 A Secondary Output Short Circuit Protection Response Time tSEC_OUT_SCP 1 µs Overtemperature Shutdown Threshold tOTP+ Temperature sensor located inside controller IC 125 °C Overtemperature Recovery Threshold tOTP– 105 110 115 °C Undertemperature Shutdown Threshold tUTP Temperature sensor located inside controller IC; Protection not available for M-Grade units. -45 °C Undertemperature Restart Time tUTP_RESTART Startup into a persistent fault condition. Non-Latching fault detection given VPRI_DC > VPRI_UVLO+ 3 s |
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