DVGF+2800T Series HIGH RELIABILITY HYBRID DC-DC CONVERTERS DESCRIPTION FEATURES The DVGF+ 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 DVGF+ 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 and certified to MILPRF-38534 and MIL-STD-883. This product may incorporate one or more of the following U.S. patents: 5,784,266 5,790,389 5,963,438 5,999,433 6,005,780 6,084,792 6,118,673 • • • • • • • • • • • • • • • High Reliability Very Low Output Noise Wide Input Voltage Range: 15 to 50 Volts per MIL-STD-704 Up to 12.5 Watts Output Power Fault Tolerant Magnetic Feedback Circuit NO Use of Optoisolators Undervoltage Lockout Indefinite Short Circuit Protection Current Limit Protection Industry Standard Pinout High Input Transient Voltage: 80 Volts for 1 sec per MIL-STD-704A Precision Projection Welded Hermetic Package High Power Density: > 23 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 – DVGF+2800T / DVGF+2800TF DC-DC Converter (Not To Scale) 1X047DSD 11314 4th Avenue West, Suite 206 Everett, WA 98204 http://www.vpt-inc.com Sales Information: Phone: (425) 353-3010 Fax: (425) 353-4030 E-mail: [email protected] 1 DVGF+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 12.5 Watts 6.5 Watts Junction Temperature Rise to Case Storage Temperature Lead Solder Temperature (10 seconds) Weight (Maximum) (Un-Flanged / Flanged) DVGF+283R312T Conditions +15°C -65°C to +150°C 270°C (26 / 29) Grams DVGF+283R315T Units Min Typ Max Min Typ Max 15 28 50 15 28 50 STATIC Continuous INPUT Voltage Transient, 1 sec 4 Inhibited Current No Load 5 Ripple Current Full Load , 20Hz to 10MHz Inhibit Pin Input 4 Inhibit Pin Open Circuit Voltage 4 UVLO Turn On 4 UVLO Turn Off 3 - 50 - - 50 mA mAp-p - - 50 - - 50 0 - 1.5 0 - 1.5 V 13 15 17 13 15 17 V 10.5 - 14.5 10.5 - 14.5 V - 13 V 3.30 3.333 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 3.25 3.30 3.35 3.25 3.30 3.35 V 11.64 12.0 12.36 14.55 15.0 15.45 V 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 - 12.5 0 - 12.5 W VMAIN 0 - 5 0 - 5 W 6 0 - 7.5 0 - 7.5 W VMAIN 0 - 1.5 0 - 1.5 A 0 - 0.44 0 - 0.35 A - 40 50 - 40 50 mVp-p - 60 80 - 60 80 mVp-p - 10 20 - 10 20 mV - 15 50 - 15 50 mV - 5 50 - 5 50 mV - 10 50 - 10 50 mV - 20 200 - 20 200 mV - - 450 - - 450 mV 5 73 75 - 73 75 - % 4 - - 7.5 - - 7.5 W - - 7.5 - - 7.5 W - - 500 - - 500 µF 550 650 700 550 650 700 kHz kHz ±VAUX Either Output 6 5 Full Load , 20Hz to 10MHz VIN = 15V to 50V VMAIN +VAUX 5,8 No Load to Full Load -VAUX ±VAUX EFFICIENCY +VOUT = 30%, -VOUT = 70% +VOUT = 70%, -VOUT = 30% Full Load LOAD FAULT POWER DISSIPATION Overload Short Circuit 4 CAPACITIVE LOAD SWITCHING FREQUENCY 7 SYNCHRONIZATION FREQUENCY ISOLATION 500 VDC, TCASE = 25°C MTBF (MIL-HDBK-217F) AIF @ TC = 55°C 1X047DSD - 9 VMAIN Cross Regulation V mA 3.267 VMAIN Load Regulation 80 5.0 13 ±VAUX Line Regulation 3.5 3.333 ±VAUX Ripple Voltage - - ±VAUX Current 80 5.0 3.30 +VAUX 4 3.5 9 +VAUX Power - 3.267 VMAIN OUTPUT Voltage V 700 750 800 700 750 800 100 - - 100 - - MΩ - 350 - - 350 - kHrs 2 DVGF+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 12.5 Watts 6.5 Watts Junction Temperature Rise to Case Storage Temperature Lead Solder Temperature (10 seconds) Weight (Maximum) (Un-Flanged / Flanged) DVGF+283R312T Conditions +15°C -65°C to +150°C 270°C (26 / 29) Grams DVGF+283R315T Units Min Typ Max Min Typ Max - 200 400 - 200 400 mVPK DYNAMIC Load Step Output Transient 2 2, 4 Line Step Recovery ±VAUX - 400 500 - 400 500 mVPK - 450 650 - 450 650 µSec ±VAUX - 300 350 - 300 350 µSec VMAIN - 50 150 - 50 150 mVPK - 150 250 - 150 250 mVPK VMAIN Load Step Recovery Line Step Output Transient VMAIN 4 ±VAUX VMAIN Half Load to Full Load VIN = 15V to 50V ±VAUX Turn On Delay Turn On Overshoot Notes: 1. 2. 3. 4. 5. 6. 7. 8. VMAIN ±VAUX VIN = 0V to 28V - 100 200 - 100 200 µSec - 100 300 - 100 300 µSec - - 17 - - 17 mSec - - 15 - - 15 mVPK - - 50 - - 50 mVPK 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. 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. -VAUX is 5% Load to Full Load at -55°C. 1X047DSD 3 DVGF+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 1X047DSD 4 DVGF+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 INH 1 BIAS OPTIONAL CAPACITOR IN COM 8 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) 1X047DSD 5 DVGF+2800T Series EMI FILTER HOOKUP DIAGRAM Figure 6 – Converter with EMI Filter 1X047DSD 6 DVGF+2800T Series EFFICIENCY PERFORMANCE CURVES (TCASE = 25°C) VIN = 15V VIN = 28V VIN = 50V 80 Efficiency (%) 75 70 65 60 55 2 4 6 8 10 12 14 Output Power (W) Figure 7 – DVGF+283R312T Efficiency (%) vs. Output Power (W) 80 Efficiency (%) 75 70 65 60 55 2 4 6 8 10 12 14 Output Power (W) Figure 8 – DVGF+283R315T Efficiency (%) vs. Output Power (W) 1X047DSD 7 DVGF+2800T Series EMI PERFORMANCE CURVES (TCASE = 25°C, VIN = +28V ± 5%, Full Load, Unless Otherwise Specified) Figure 9 – DVGF+2800T without EMI Filter Figure 10 – DVGF+2800T with EMI Filter 1X047DSD 8 DVGF+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) 1X047DSD 9 DVGF+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) 1X047DSD 10 DVGF+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 1X047DSD 11 DVGF+2800T Series ENVIRONMENTAL SCREENING (100% Tested Per MIL-STD-883 as referenced to MIL-PRF-38534) Screening MIL-STD-883 (No Suffix) Extended /ES HB /HB Class H /H Class K /K • • • • • • • • • • • • • • Standard NonDestructive Bond Pull Method 2023 • Internal Visual Method 2017, 2032 Internal Procedure • Temperature Cycling Method 1010, Condition C Method 1010, -55°C to 125°C • Constant Acceleration Method 2001, 3000g, Y1 Direction Method 2001, 500g, Y1 Direction • PIND Method 2020, Condition A2 • Pre Burn-In Electrical 100% at 25°C • Burn-In Method 1015, 320 hours at +125°C Method 1015, 160 hours at +125°C 96 hours at +125°C 24 hours at +125°C • Final Electrical MIL-PRF-38534, Group A1 100% at 25°C • Hermeticity Method 1014, Fine Leak, Condition A Method 1014, Gross Leak, Condition C -3 Dip (1 x 10 ) Radiography Method 20123 External Visual Method 2009 Notes: 1X047DSD 1. 2. 3. • • • • • • • • • • • • • • • • • • • • • • • 100% R&R testing at –55°C, +25°C, and +125°C with all test data included in product shipment. PIND test Certificate of Compliance included in product shipment. Radiographic test Certificate of Compliance and film(s) included in product shipment. 12 DVGF+2800T Series ORDERING INFORMATION DVGF+ 28 3R3 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 DVGF+ 28 Volts 28 + 3.3 Volts 3R3 ± 12 Volts ± 15 Volts 12 15 (5) (6) (7) (8) Number of Outputs Package Option Screening Code1,2 Additional Screening Code Triple T Notes: 1. 2. None F Non-Flanged Flanged None /ES /HB /H /K Standard Extended HB Class H Class K Contact Sales Contact the VPT Inc. Sales Department for availability of Class H (/H) or Class K (/K) qualified products. VPT Inc. reserves the right to ship higher screened or SMD products to meet lower screened orders at our sole discretion unless specifically forbidden by customer contract. 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. 1X047DSD 13 DVGF+2800T Series SMD (STANDARD MICROCIRCUIT DRAWING) NUMBERS Standard Microcircuit Drawing (SMD) DVGF+2800T Series Similar Part Number *T.B.D. DVGF+283R312T/H DVGF+283R312TF/H *T.B.D. DVGF+283R315T/H DVGF+283R315TF/H Do not use the DVGF+2800T Series similar part number for SMD product acquisition. It is listed for reference only. For exact specifications for the SMD product, refer to the SMD drawing. SMD’s can be downloaded from the DSCC website at http://www.dscc.dla.mil/programs/smcr/. The SMD number listed above is for MIL-PRF-38534 Class H screening, standard gold plated lead finish, and no RHA (Radiation Hardness Assurance) level. Please reference the SMD for other screening levels, lead finishes, and radiation levels. CONTACT INFORMATION To request a quotation or place orders please contact your sales representative or the VPT Inc. Sales Department at: Phone: Fax: E-mail: (425) 353-3010 (425) 353-4030 [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. 1X047DSD 14