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DVHF285R2S Datasheet(PDF) 6 Page - VPT, Inc. |
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DVHF285R2S Datasheet(HTML) 6 Page - VPT, Inc. |
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6 / 18 page  DVHF2800S Series DVHF2800S-4.0 6 SPECIFICATIONS (TCASE = -55°C to +125°C, VIN = +28V ± 5%, Full Load, Unless Otherwise Specified) ABSOLUTE MAXIMUM RATINGS Input Voltage (Continuous) 50 VDC Junction Temperature Rise to Case +12°C Input Voltage (Transient, 1 second) 80 Volts Storage Temperature -65°C to +150°C Output Power 1 20 Watts Lead Solder Temperature (10 seconds) 270°C Power Dissipation (Full Load, TCASE = +125°C) 6 Watts Weight (Maximum) (Un-Flanged / Flanged) (24 / 28) Grams ESD Rating per MIL-PRF-38534 2 Parameter Conditions DVHF2828S Units Min Typ Max STATIC INPUT Voltage 4 Continuous 15 28 50 V Transient, 1 sec - - 80 V Current Inhibited - 4 6 mA No Load - 45 65 mA Ripple Current Full Load, 20Hz to 10MHz - 40 100 mAp-p Inhibit Pin Input 4 0 - 1.5 V Inhibit Pin Open Circuit Voltage 4 9 11 13 V UVLO Turn On 12 - 14.8 V UVLO Turn Off 4 11 - 14.5 V OUTPUT Voltage VOUT TCASE = 25°C 27.70 28.00 28.30 V VOUT TCASE = -55°C to +125°C 27.25 28.00 28.75 V Power 3 0 - 20 W Current 3 VOUT 0 - 0.714 A Ripple Voltage VOUT Full Load, 20Hz to 10MHz - 45 120 mVp-p Line Regulation VOUT VIN = 15V to 50V - 45 150 mV Load Regulation VOUT No Load to Full Load - 25 150 mV EFFICIENCY 79 85 - % LOAD FAULT POWER DISSIPATION Overload 4 - - 8 W Short Circuit - - 8 W CAPACITIVE LOAD 4 - - 500 µF SWITCHING FREQUENCY 350 450 500 kHz ISOLATION 500 VDC 100 - - MΩ MTBF (MIL-HDBK-217F) AIF @ TC = 55°C - 427 - kHrs DYNAMIC Load Step Output Transient VOUT Half Load to Full Load - 630 900 mVPK Load Step Recovery 2 - 250 400 µSec Line Step Output Transient 4 VOUT VIN = 16V to 40V - 900 1300 mVPK Line Step Recovery 2, 4 - 400 700 µSec Turn On Delay VOUT VIN = 0V to 28V - 10 20 mSec Turn On Overshoot - 0 50 mVPK Notes: 1. Dependant on output voltage. 2. Time for output voltage to settle within 1% of its nominal value. 3. Derate linearly to 0 at 135°C. 4. Verified by qualification testing. |
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