DVTR2800T Series HIGH RELIABILITY HYBRID DC-DC CONVERTERS DESCRIPTION FEATURES The DVTR 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 DVTR 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 start-up 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 30 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 Seam Welded or Solder Seal Hermetic Package High Power Density: > 28 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 – DVTR2800T / DVTR2800TF DC-DC Converter (Not To Scale) 12009DSA 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 DVTR2800T 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 30 Watts 10 Watts Conditions Junction Temperature Rise to Case Storage Temperature Lead Solder Temperature (10 seconds) Weight +15°C -65°C to +150°C 270°C 50 grams Min DVTR28512T Typ Max Min DVTR28515T Typ Max Units STATIC Continuous INPUT Voltage Current Ripple Current 15 28 50 15 28 50 V Transient, 1 sec4 - - 80 - - 80 V Inhibited - 3.5 7.5 - 3.5 7.5 mA No Load - 20 40 - 20 40 mA Full Load5, 20Hz to 20MHz - 20 50 - 20 50 mAp-p 4 0 - 1.5 0 - 1.5 V Inhibit Pin Open Circuit Voltage4 13 15 17 13 15 17 V UVLO Turn On 11.5 - 14.5 11.5 - 14.5 V UVLO Turn Off4 11.0 - 14.5 11.0 - 14.5 V Inhibit Pin Input VMAIN +VAUX OUTPUT Voltage TCASE = 25°C -VAUX VMAIN +VAUX TCASE = -55°C to +125°C -VAUX Power4 Current3 Ripple Voltage Load Regulation 5.05 4.95 5.0 5.05 V 12.12 14.85 15.0 15.15 V -12.24 -12.0 -11.76 -15.30 -15.0 -14.70 V 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 -12.48 -12.0 -11.52 -15.60 -15.0 -14.40 V 0 - 30 0 - 30 W VMAIN 0 - 15 0 - 15 W ±VAUX6 0 - 15 0 - 15 W VMAIN ±VAUX VMAIN ±VAUX Either Output6 Full Load5, 20Hz to 10MHz +VAUX VIN = 15V to 50V 0 - 3.0 0 - 3.0 A 0 - 0.87 0 - 0.70 A - 20 60 - 20 60 mVp-p - 40 100 - 40 100 mVp-p - 10 25 - 10 25 mV - 15 50 - 15 50 mV -VAUX - 20 100 - 20 100 mV VMAIN - 10 25 - 10 25 mV - 10 50 - 10 50 mV - 50 250 - 50 250 mV - - 5 - - 5 % +VAUX No Load to Full Load5 -VAUX Cross Regulation 5.0 12.0 Total VMAIN Line Regulation 4.95 11.88 ±VAUX +VOUT = 30%, -VOUT = 70% +VOUT = 70%, -VOUT = 30% 5 EFFICIENCY LOAD FAULT POWER DISSIPATION Full Load 74 79 - 75 80 - % Overload4 - - 15 - - 15 W Short Circuit - - 10 - - 10 W - - 500 - - 500 mF 600 650 700 600 650 700 kHz kHz CAPACITIVE LOAD4 SWITCHING FREQUENCY SYNCHRONIZATION FREQUENCY 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 - 307 - - 307 - kHrs 12009DSA 2 DVTR2800T 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 30 Watts 10 Watts Conditions Junction Temperature Rise to Case Storage Temperature Lead Solder Temperature (10 seconds) Weight DVTR28512T +15°C -65°C to +150°C 270°C 50 grams DVTR28515T Units Min Typ Max Min Typ Max - 200 400 - 200 400 mVPK - 500 700 - 500 700 mVPK - 200 400 - 200 400 mSec DYNAMIC Load Step Output Transient Load Step Recovery2 Line Step Output Transient4 Line Step Recovery2, 4 Turn On Delay Turn On Overshoot2 Notes: VMAIN ±VAUX VMAIN Half Load to Full Load ±VAUX - 200 400 - 200 400 mSec VMAIN - 200 400 - 200 400 mVPK - 300 500 - 300 500 mVPK - 200 400 - 200 400 mSec - 200 400 - 200 400 mSec - - 20 - - 20 mSec - - 0 - - 0 mVPK ±VAUX VMAIN VIN = 15V to 50V ±VAUX VIN = 0V to 28V 1. This note intentionally not used. 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. 5. 15W on VMAIN and 15W on ±VAUX. 6. Up to 70% of the total auxiliary power or current can be drawn from either of the auxiliary outputs. 7. Synchronization is TTL signal with VSYNC MAX = 6V. 12009DSA 3 DVTR2800T Series BLOCK DIAGRAM 28V IN +V MAIN PIN 1 PIN 2 OUT COM PIN 3 +V AUX IN COM PIN 5 PIN 10 SYNC PIN 9 PRIMARY HOUSEKEEPING SUPPLY INH -V AUX DUAL PWM CONTROLLER PIN 4 TRANSFORMER ISOLATED ERROR SIGNAL FEEDBACK VOLTAGE AND CURRENT ERROR AMPLIFIERS TRANSFORMER ISOLATED POWER FEEDFORWARD SECONDARY HOUSKEEPING SUPPLY PIN 8 Figure 2 12009DSA 4 DVTR2800T Series CONNECTION DIAGRAM 1 2 28V IN +V MAIN LOAD 9 28 Vdc + - +V AUX SYNC 8 INH -V AUX 5 4 LOAD LOAD 10 IN COM OUT COM 3 Figure 3 INHIBIT DRIVE CONNECTION DIAGRAMS 28V IN 1 28V IN 1 15K INH 15K OPTOISOLATOR 8 BIAS OPTIONAL CAPACITOR IN COM 10 INH 8 BIAS OPTIONAL CAPACITOR 14V IN COM 10 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) 12009DSA 5 DVTR2800T Series EMI FILTER HOOKUP DIAGRAM DVTR2800T DC-DC CONVERTER DVMC28 EMI FILTER 1 2 28V IN 1 28V OUT 2 28V IN +V MAIN SYNC 28 Vdc + - LOAD 5 9 +V AUX LOAD 8 5 4 -V AUX LOAD 10 IN COM OUT COM IN COM OUT COM 3 INH 4 CASE 3 6, 7 Figure 6 – Converter with EMI Filter 12009DSA 6 DVTR2800T Series EFFICIENCY PERFORMANCE CURVES (TCASE = 25°C) VIN = 15V VIN = 28V VIN = 50V 85 80 75 70 65 60 55 50 - 5 10 15 20 25 30 35 40 Output Power [W] Figure 7 – DVTR28512T Efficiency (%) vs. Output Power (W) 85 80 75 70 65 60 55 50 - 5 10 15 20 25 30 35 40 Output Power [W] Figure 8 – DVTR28515T Efficiency (%) vs. Output Power (W) 12009DSA 7 DVTR2800T Series EMI PERFORMANCE CURVES (TCASE = 25°C, VIN = +28V ± 5%, Full Load, Unless Otherwise Specified) Figure 9 – DVTR2800T without EMI Filter Figure 10 – DVTR2800T with EMI Filter 12009DSA 8 DVTR2800T Series PACKAGE SPECIFICATIONS (NON-FLANGED, SOLDER SEAL) TOP VIEW SIDE VIEW PIN FUNCTION 1 28V IN 2 +V MAIN 3 OUT COM 4 -V AUX 5 +V AUX 6 CASE 7 CASE 8 INHIBIT 9 SYNC 10 IN COM BOTTOM VIEW Figure 11 – Non-Flanged, Solder Seal Package and Pinout (Dimensional Limits are ±0.005” Unless Otherwise Stated) 12009DSA 9 DVTR2800T Series PACKAGE SPECIFICATIONS (NON-FLANGED, SEAM SEAL) TOP VIEW SIDE VIEW PIN FUNCTION 1 28V IN 2 +V MAIN 3 OUT COM 4 -V AUX 5 +V AUX 6 CASE 7 CASE 8 INHIBIT 9 SYNC 10 IN COM BOTTOM VIEW Figure 12 – Non-Flanged, Seam Seal Package and Pinout (/HB Screened Units Only) (Dimensional Limits are ±0.005” Unless Otherwise Stated) 12009DSA 10 DVTR2800T Series PACKAGE SPECIFICATIONS (FLANGED, SOLDER SEAL) TOP VIEW SIDE VIEW PIN FUNCTION 1 28V IN 2 +V MAIN 3 OUT COM 4 -V AUX 5 +V AUX 6 CASE 7 CASE 8 INHIBIT 9 SYNC 10 IN COM BOTTOM VIEW Figure 13 – Flanged, Solder Seal Package and Pinout (Dimensional Limits are ±0.005” Unless Otherwise Stated) 12009DSA 11 DVTR2800T Series PACKAGE SPECIFICATIONS (FLANGED, SEAM SEAL) TOP VIEW SIDE VIEW PIN FUNCTION 1 28V IN 2 +V MAIN 3 OUT COM 4 -V AUX 5 +V AUX 6 CASE 7 CASE 8 INHIBIT 9 SYNC 10 IN COM BOTTOM VIEW Figure 14 – Flanged, Seam Seal Package and Pinout (/HB Screened Units Only) (Dimensional Limits are ±0.005” Unless Otherwise Stated) 12009DSA 12 DVTR2800T Series PACKAGE PIN DESCRIPTION Pin Function Description 1 28V IN Positive Input Voltage Connection 2 +V MAIN Positive Main Output Voltage Connection 3 OUT COM Output Common Connection 4 -V AUX Negative Auxiliary Output Voltage Connection 5 +V AUX Positive Auxiliary Output Voltage Connection 6 CASE Case Connection 7 CASE Case Connection 8 INHIBIT Logic Low = Disabled Output. Connecting the inhibit pin to input common causes converter shutdown. Logic High = Enabled Output. Unconnected or open collector TTL. 9 SYNC Synchronization Signal 10 IN COM Input Common 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: 12009DSA 1. · · · · · · · 100% R&R testing at –55°C, +25°C, and +125°C with all test data included in product shipment. 13 DVTR2800T Series ORDERING INFORMATION DVTR 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 DVTR 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. 12009DSA 14