DVHF+2800T Series HIGH RELIABILITY HYBRID DC-DC CONVERTERS DESCRIPTION FEATURES The DVHF+ series of high reliability DC-DC converters is operable over the full military (-55 °C to +125 °C) temperature range with no power derating. Unique to the DVHF+ series is a fault tolerant magnetic feedback circuit. Operating at a nominal fixed frequency of 325 kHz per stage, these regulated, isolated units utilize well-controlled undervoltage lockout circuitry to eliminate slow startup problems. · · · These converters are designed and manufactured in a facility qualified to ISO9001, compliant to AS9000, and certified to MIL-PRF-38534 and MIL-STD-883. · · · · · · · · · · · · · High Reliability Very Low Output Noise Wide Input Voltage Range: 15 to 50 Volts per MIL-STD-704 Up to 15 Watts Output Power Fault Tolerant Magnetic Feedback Circuit NO Use of Optoisolators Undervoltage Lockout Industry Standard Pinout High Input Transient Voltage: 80 Volts for 1 sec per MIL-STD-704A Precision Projection Welded Hermetic Package High Power Density: > 37 W/in3 Custom Versions Available Additional Environmental Screening Available Meets MIL-STD-461C and MIL-STD-461D EMC Requirements When Used With a DVMH28 EMI Filter Flanged and Non-flanged Versions Available. MIL-PRF-38534 Element Evaluated Components Figure 1 – DVHF+2800T / DVHF+2800TF DC-DC Converter (Not To Scale) 12006DSA 17921 Bothell-Everett Highway, Suite 108 Bothell, WA 98012 http://www.vpt-inc.com Sales Information: Phone: (425) 487-4850 Fax: (425) 487-4802 E-mail: [email protected] 1 DVHF+2800T Series SPECIFICATIONS (TCASE = -55°C to +125°C, VIN = +28V ± 5%, Full Load5, Unless Otherwise Specified) ABSOLUTE MAXIMUM RATINGS Input Voltage (Continuous) Input Voltage (Transient, 1 second) Output Power Power Dissipation (Full Load, TCASE = +125°C) Parameter 50 VDC 80 Volts 15 Watts 6.5 Watts Conditions Junction Temperature Rise to Case Storage Temperature Lead Solder Temperature (10 seconds) Weight DVHF+28512T +15°C -65°C to +150°C 270°C 24 grams DVHF+28515T Min Typ Max Min Typ Max 15 28 50 15 28 50 Units STATIC Continuous INPUT Voltage Ripple Current V - - 80 - - 80 V Inhibited - 3.5 5.0 - 3.5 5.0 mA No Load - - 40 - - 40 mA Full Load5, 20Hz to 20MHz - 40 60 - 40 60 mAp-p Transient, 1 sec Current 4 Inhibit Pin Input4 0 - 1.5 0 - 1.5 V Inhibit Pin Open Circuit Voltage4 13 15 17 13 15 17 V 11.5 - 14.5 11.5 - 14.5 V UVLO Turn On UVLO Turn Off 4 11.0 - 14.5 11.0 - 14.5 V 4.95 5.0 5.05 4.95 5.0 5.05 V 11.88 12.0 12.12 14.85 15.0 15.15 V -VAUX -12.24 -12.0 -11.76 -15.30 -15.0 -14.70 V VMAIN 4.85 5.0 5.15 4.85 5.0 5.15 V 11.64 12.0 12.36 14.55 15.0 15.45 V VMAIN +VAUX OUTPUT Voltage +VAUX Power4 Current3 Ripple Voltage Line Regulation TCASE = 25°C TCASE = -55°C to +125°C -VAUX -12.48 -12.0 -11.52 -15.60 -15.0 -14.40 V Total 0 - 15 0 - 15 W VMAIN 0 - 7.5 0 - 7.5 W ±VAUX6 0 - 7.5 0 - 7.5 W VMAIN 0 - 1.5 0 - 1.5 A 0 - 0.44 0 - 0.35 A ±VAUX VMAIN ±VAUX VMAIN ±VAUX Either Output6 Full Load5, 20Hz to 10MHz VIN = 15V to 50V +VAUX ±VAUX EFFICIENCY LOAD FAULT POWER DISSIPATION - 40 60 mVp-p - 60 120 mVp-p - 10 25 - 10 25 mV mV 15 50 - 15 50 5 25 - 5 25 mV - 10 50 - 10 50 mV - 20 250 - 20 250 mV - - 5 - - 5 % Full Load5 74 77 - 74 77 - % Overload4 - - 7.5 - - 7.5 W Short Circuit - - 7.5 - - 7.5 W - - 500 - - 500 mF 600 650 700 600 650 700 kHz kHz No Load to Full Load5 +VOUT = 30%, -VOUT = 70% +VOUT = 70%, -VOUT = 30% CAPACITIVE LOAD4 SWITCHING FREQUENCY SYNCHRONIZATION FREQUENCY 60 120 - -VAUX Cross Regulation 40 60 - VMAIN Load Regulation - 7 700 750 800 700 750 800 ISOLATION 500 VDC, TCASE = 25°C 100 - - 100 - - MΩ THERMAL RESISTANCE Case to Ambient (qCA) - 25 - - 25 - °C/W MTBF (MIL-HDBK-217F) AIF @ TC = 55°C - 350 - - 350 - kHrs 12006DSA 2 DVHF+2800T Series SPECIFICATIONS (TCASE = -55°C to +125°C, VIN = +28V ± 5%, Full Load5, Unless Otherwise Specified) ABSOLUTE MAXIMUM RATINGS Input Voltage (Continuous) Input Voltage (Transient, 1 second) Output Power Power Dissipation (Full Load, TCASE = +125°C) Parameter 50 VDC 80 Volts 15 Watts 6.5 Watts Conditions Junction Temperature Rise to Case Storage Temperature Lead Solder Temperature (10 seconds) Weight DVHF+28512T +15°C -65°C to +150°C 270°C 24 grams DVHF+28515T Units Min Typ Max Min Typ Max - 200 400 - 200 400 mVPK - 400 500 - 400 500 mVPK - 450 600 - 450 600 mSec ±VAUX - 300 600 - 300 600 mSec VMAIN - 50 150 - 50 150 mVPK - 150 250 - 150 250 mVPK - 100 200 - 100 200 mSec - 100 200 - 100 200 mSec - - 10 - - 10 mSec - - 0 - - 0 mVPK DYNAMIC Load Step Output Transient Load Step Recovery2 Line Step Output Transient4 Line Step Recovery2, 4 Turn On Delay Turn On Overshoot2 Notes: 1. 2. 3. 4. 5. 6. 7. VMAIN ±VAUX VMAIN ±VAUX VMAIN Half Load to Full Load VIN = 15V to 50V ±VAUX VIN = 0V to 28V This note intentionally not used. Time for output voltage to settle within 1% of its nominal value. Derate linearly to 0 at 135°C. Verified by qualification testing. 7.5W on VMAIN and 7.5W on ±VAUX. Up to 70% of the total auxiliary power or current can be drawn from either of the auxiliary outputs. Synchronization is TTL signal with VSYNC MAX = 6V. 12006DSA 3 DVHF+2800T Series BLOCK DIAGRAM 28V IN +V MAIN PIN 9 PIN 2 OUT COM PIN 3 +V AUX IN COM PIN 4 PIN 8 SYNC PIN 7 PRIMARY HOUSEKEEPING SUPPLY INH -V AUX DUAL PWM CONTROLLER PIN 5 TRANSFORMER ISOLATED ERROR SIGNAL FEEDBACK VOLTAGE ERROR AMPLIFIERS TRANSFORMER ISOLATED POWER FEEDFORWARD SECONDARY HOUSKEEPING SUPPLY PIN 1 Figure 2 12006DSA 4 DVHF+2800T Series CONNECTION DIAGRAM 9 2 28V IN +V MAIN LOAD 4 7 +V AUX SYNC 28 Vdc + - LOAD 1 5 INH -V AUX LOAD 8 IN COM OUT COM 3 Figure 3 INHIBIT DRIVE CONNECTION DIAGRAMS 28V IN 9 28V IN 9 15K INH 15K OPTOISOLATOR 1 BIAS OPTIONAL CAPACITOR IN COM 8 INH 1 BIAS OPTIONAL CAPACITOR 14V IN COM 8 14V Figure 4 – Internal Inhibit Circuit and Recommended Drive Figure 5 – Isolated Inhibit Drive (Shown with optional capacitor for turn-on delay) (Shown with optional capacitor for turn-on delay) 12006DSA 5 DVHF+2800T Series EMI FILTER HOOKUP DIAGRAM DVMH28 EMI FILTER 1 DVHF+2800T DC-DC CONVERTER 2 28V IN 9 28V OUT 2 28V IN +V MAIN LOAD 4 7 SYNC 28 Vdc + - +V AUX LOAD 1 INH -V AUX 5 LOAD 5 4 8 IN COM OUT COM IN COM OUT COM 3 3 CASE 6 Figure 6 – Converter with EMI Filter 12006DSA 6 DVHF+2800T Series EFFICIENCY PERFORMANCE CURVES (TCASE = 25°C) VIN = 15V VIN = 28V VIN = 50V Figure 7 – DVHF+28512T Efficiency (%) vs. Output Power (W) Figure 8 – DVHF+28515T Efficiency (%) vs. Output Power (W) 12006DSA 7 DVHF+2800T Series EMI PERFORMANCE CURVES (TCASE = 25°C, VIN = +28V ± 5%, Full Load, Unless Otherwise Specified) Figure 9 – DVHF+2800T without EMI Filter Figure 10 – DVHF+2800T with EMI Filter 12006DSA 8 DVHF+2800T Series PACKAGE SPECIFICATIONS (NON-FLANGED) TOP VIEW SIDE VIEW PIN FUNCTION 1 INHIBIT 2 +V MAIN 3 OUT COM 4 +V AUX 5 -V AUX 6 CASE 7 SYNC 8 IN COM 9 28V IN BOTTOM VIEW Figure 11 – Non-Flanged Package and Pinout (Dimensional Limits are ±0.005” Unless Otherwise Stated) 12006DSA 9 DVHF+2800T Series PACKAGE SPECIFICATIONS (FLANGED) TOP VIEW SIDE VIEW PIN FUNCTION 1 INHIBIT 2 +V MAIN 3 OUT COM 4 +V AUX 5 -V AUX 6 CASE 7 SYNC 8 IN COM 9 28V IN BOTTOM VIEW Figure 12 – Flanged Package and Pinout (Dimensional Limits are ±0.005” Unless Otherwise Stated) 12006DSA 10 DVHF+2800T Series PACKAGE PIN DESCRIPTION Pin Function Description 1 INHIBIT Logic Low = Disabled Output. Connecting the inhibit pin to input common causes converter shutdown. Logic High = Enabled Output. Unconnected or open collector TTL. 2 +V MAIN Positive Main Output Voltage Connection 3 OUT COM Output Common Connection 4 +V AUX Positive Auxiliary Output Voltage Connection 5 -V AUX Negative Auxiliary Output Voltage Connection 6 CASE Case Connection 7 SYNC Synchronization Signal 8 IN COM Input Common Connection 9 28V IN Positive Input Voltage Connection ENVIRONMENTAL SCREENING (Per MIL-STD-883 as referenced to MIL-PRF-38534, Class H) Screening MIL-STD-883 Standard (No Suffix) Extended /ES HB /HB · · Pre-Cap Inspection Method 2017, 2032 Internal Procedure Temperature Cycling Method 1010, Condition C Method 1010, -55°C to 125°C · Constant Acceleration Method 2001, Condition A Method 2001, 500g · Burn-In Method 1015, 160 hours at +125°C 96 hours at +125°C 24 hours at +125°C · Method 1014, Fine Leak, Condition A Method 1014, Gross Leak, Condition C -3 Dip (1 x 10 ) Hermeticity · · · · · 1 Final Electrical MIL-PRF-38534, Group A 100% at 25°C · · Final Inspection Method 2009 · · Note: 12006DSA 1. · · · · · · · 100% R&R testing at –55°C, +25°C, and +125°C with all test data included in product shipment. 11 DVHF+2800T Series ORDERING INFORMATION DVHF+ 28 5 12 T F /HB 1 2 3 4 5 6 7 - XXX 8 (1) (2) (3) (4) Product Series Nominal Input Voltage Main Output Voltage Auxiliary Output Voltages DVHF+ 28 28 Volts 5 + 5 Volts 12 15 ± 12 Volts ± 15 Volts (5) (6) (7) (8) Number of Outputs Package Option Screening Code Additional Screening Code T Triple None F Non-Flanged Flanged None /ES /HB Standard Extended HB Contact Sales Please contact your sales representative or the VPT Inc. Sales Department for more information concerning additional environmental screening and testing, different input voltage, output voltage, power requirement, source inspection, and/or special element evaluation for space or other higher quality applications. CONTACT INFORMATION To request a quotation or place an order please contact your sales representative or the VPT Inc. Sales Department at: Phone: Fax: E-mail: (425) 487-4850 (425) 487-4802 [email protected] All information contained in this datasheet is believed to be accurate, however, no responsibility is assumed for possible errors or omissions. The products or specifications contained herein are subject to change without notice. 12006DSA 12