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V048F480T006A Datasheet(PDF) 4 Page - Vicor Corporation |
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V048F480T006A Datasheet(HTML) 4 Page - Vicor Corporation |
4 / 18 page VTM® Current Multiplier Rev 1.0 vicorpower.com Page 4 of 18 01/2014 800 927.9474 V048x480y006A SIGNAL TYPE STATE ATTRIBUTE SYMBOL CONDITIONS / NOTES MIN TYP MAX UNIT TM voltage VTM_AMB TJ controller = 27°C 2.95 3.00 3.05 V ANALOG TM source current ITM 100 µA OUTPUT Steady TM gain ATM 10 mV/°C TM voltage ripple VTM_PP CTM = 0 F, VIN = 48 V, 120 200 mV IOUT = 6.3 A Disable TM voltage VTM_DIS 0V DIGITAL OUTPUT TM resistance (internal) RTM_INT Internal pull down resistor 25 40 50 k Ω Transitional TM capacitance (external) CTM_EXT 50 pF (FAULT FLAG) TM fault response time TFR_TM From fault to TM = 1.5 V 10 µs • The TM pin monitors the internal temperature of the VTM controller IC within an accuracy of ±5°C. • Can be used as a "Power Good" flag to verify that the VTM is operating. • The TM pin has a room temperature setpoint of 3 V and approximate gain of 10 mV/°C. • Output drives Temperature Shutdown comparator TEMPERATURE MONITOR : TM 4.0 TIMING DIAGRAM 1 2 7 VIN 1. Initiated VC pulse 2. Controller start 3. VIN ramp up 4. VIN = VOVLO 5. VIN ramp down no VC pulse 6. Overcurrent 7. Start up on short circuit 8. PC driven low VOUT PC 3 V VC NL 5 V VOVLO TM VTM-AMB c Notes: – Timing and voltage is not to scale – Error pulse width is load dependent a: VC slew rate (dVC/dt) b: Minimum VC pulse rate c: TOVLO d: TOCP e: Output turn on delay (TON) f: PC disable time (TPC_DIS_T) g: VC to PC delay (TVC_PC) d ISSP IOUT IOCP VVC-EXT 3 4 5 6 a b 8 g e f ≥ 26 V |
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