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V048X240Y012A Datasheet(PDF) 3 Page - Vicor Corporation |
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V048X240Y012A Datasheet(HTML) 3 Page - Vicor Corporation |
3 / 18 page Not Recommended for New Designs VTM™ Current Multiplier Rev 1.2 vicorpower.com Page 3 of 18 09/2015 800 927.9474 V048x240y012A SIGNAL TYPE STATE ATTRIBUTE SYMBOL CONDITIONS / NOTES MIN TYP MAX UNIT External VC voltage VVC_EXT Required for start up, and operation 11.5 16.5 V below 26 V. See Section 7. VC = 11.5 V, VIN = 0 V 115 150 VC current draw IVC VC = 11.5 V, VIN > 26 V 0 mA VC = 16.5 V, VIN > 26 V 0 Steady Fault mode. VC > 11.5 V 60 ANALOG VC internal diode rating DVC_INT 100 V INPUT VC internal resistor RVC-INT 0.51 k Ω VC internal resistor T VC _COEFF 900 ppm/°C temperature coefficient Start Up VC start up pulse VVC_SP Tpeak <18 ms 20 V VC slew rate dVC/dt Required for proper start up; 0.02 0.25 V/µs VC inrush current IINR_VC VC = 16.5 V, dVC/dt = 0.25 V/µs 1 A VC to VOUT turn-on delay TON VIN pre-applied, PC floating, 500 µs VC enable, CPC = 0 µF Transitional VC to PC delay Tvc_pc VC = 11.5 V to PC high, VIN = 0 V, 75 125 µs dVC/dt = 0.25 V/µs Internal VC capacitance CVC_INT VC = 0 V 3.2 µF • Used to wake up powertrain circuit. • A minimum of 11.5 V must be applied indefinitely for VIN < 26 V to ensure normal operation. • VC slew rate must be within range for a succesful start. •PRM™ VC can be used as valid wake-up signal source. • Internal Resistance used in “Adaptive Loop” compensation • VC voltage may be continuously applied VTM CONTROL : VC 3.0 SIGNAL CHARACTERISTICS Specifications apply over all line and load conditions unless otherwise noted; Boldface specifications apply over the temperaturerange of -40°C < TJ < 125°C (T-Grade); All other specifications are at TJ = 25°C unless otherwise noted. SIGNAL TYPE STATE ATTRIBUTE SYMBOL CONDITIONS / NOTES MIN TYP MAX UNIT PC voltage VPC 4.7 5.0 5.3 V ANALOG Steady PC source current IPC_OP 2mA OUTPUT PC resistance (internal) RPC_INT Internal pull down resistor 50 150 400 k Ω Start Up PC source current IPC_EN 50 100 300 µA PC capacitance (internal) CPC_INT Section 7 1100 pF PC resistance (external) RPC_S 60 k Ω Enable PC voltage VPC_EN 2 2.5 3 V DIGITAL Disable PC voltage (disable) VPC_DIS 2 V INPUT / OUPUT PC pull down current IPC_PD 5.1 mA Transitional PC disable time TPC_DIS_T 5µs PC fault response time TFR_PC From fault to PC = 2 V 100 µs • The PC pin enables and disables the VTM. When held below 2 V, the VTM will be disabled. • PC pin outputs 5 V during normal operation. PC pin is equal to 2.5 V during fault mode given VIN > 26 V or VC > 11.5 V. • After successful start up and under no fault condition, PC can be used as a 5 V regulated voltage source with a 2 mA maximum current. • Module will shutdown when pulled low with an impedance less than 400 Ω. • In an array of VTMs, connect PC pin to synchronize start up. • PC pin cannot sink current and will not disable other modules during fault mode. PRIMARY CONTROL : PC |
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