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PRM48AH480X200A00 Datasheet(PDF) 11 Page - Vicor Corporation |
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PRM48AH480X200A00 Datasheet(HTML) 11 Page - Vicor Corporation |
11 / 42 page Rev 1.5 PRMTM Regulator Page 11 of 42 11/2015 vicorpower.com 800 927.9474 PRM48AH480x200A00 Signal Specifications (cont.) Specifications apply over all line and load conditions, TINT = 25ºC and output voltage from 20.0 V to 55.0 V, unless otherwise noted. Boldface specifications apply over the temperature range of -40ºC < TINT < 125ºC (T-grade). TRIM (Adaptive Loop Operation Only) • Provides dynamic trim control over the PRM output voltage in Adaptive Loop Operation • Sampled prior to every start up to detect if trim is active or inactive • Output voltage is equal to 20 times the voltage at the TRIM pin when applied TRIM voltage is within the active range • Trim state is detected during normal operation and cannot be changed until start up is initiated Signal Type State Attribute Symbol Conditions / Notes Min Typ Max Unit Trim Enable Threshold VTRIM_EN Pull below this value during 3.10 V start up to enable trim control Trim Disable Threshold VTRIM_DIS Pull above this value during start up to disable trim control 3.20 V Start up Minimum Trim Disable RTRIM_DIS_MIN Minimum TRIM resistance required 10 M Ω Resistance to disable trim Trim Capacitance CTRIM_EXT 100 pF (External) Trim Sample Delay tENABLE_TRIM From ENABLE high to TRIM sampled 100 140 200 µs Analog Input TRIM Pin VTRIM_RANGE See Figure 26 1.00 2.75 V Analog Range TRIM Gain GTRIM VOUT / VTRIM, 20 V / V VTRIM applied within active range Normal Trim Accuracy %ACC_TRIM Vout accuracy, exclusive of Operation external resistor tolerance 0.5 2.0 % VOUT Referred VOUT_RES 200 mV Trim Resolution Trim Latency tTRIM_LAT 60 120 240 µs Trim Bandwidth BWTRIM -3dB point 1.2 kHz |
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