DVSB2800D Series HIGH RELIABILITY HYBRID DC-DC CONVERTERS DESCRIPTION FEATURES The DVSB 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 DVSB 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 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 High Input Transient Voltage: 80 Volts for 1 sec per MIL-STD-704A Precision Projection Welded Hermetic Package High Power Density 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 – DVSB2800D / DVSB2800DF DC-DC Converter (Not To Scale) 1X046DSD 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 DVSB2800D Series SPECIFICATIONS (TCASE = -55°C to +125°C, VIN = +28V ± 5%, Full Load, 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 6.0 Watts Junction Temperature Rise to Case Storage Temperature Lead Solder Temperature (10 seconds) Weight (Maximum) (Un-Flanged / Flanged) DVSB2853R3D Conditions +15°C -65°C to +150°C 270°C (24 / 28) Grams Units Min Typ Max 15 28 50 STATIC Continuous INPUT 4 Voltage Transient, 1 sec Current Ripple Current 4 - - 80 V Inhibited - 3.5 5.0 mA No Load - - 60 mA Full Load, 20Hz to 10MHz Inhibit Pin Input 4 Inhibit Pin Open Circuit Voltage 4 UVLO Turn On 4 UVLO Turn Off VOUT1 VOUT2 OUTPUT Voltage VOUT1 VOUT2 3,4 Power Current 3 V V 12 14 17 10.5 - 14.5 V 9 - 13 V 4.95 5.0 5.05 V 3.267 3.3 3.333 V 4.925 5.0 5.075 V 3.25 3.3 3.35 V - 12.5 W - 7.5 W VOUT2 0 - 5 W VOUT1 0 - 1.5 A VOUT2 0 - 1.5 A Full Load, 20Hz to 10MHz - 40 60 mVp-p VIN = 15V to 50V - 0 25 mV No Load to Full Load - 10 50 mV VOUT1 = 0%, VOUT2 = 100% VOUT1 = 100%, VOUT2 = 0% - 10 50 mV 69 74 - % W VOUT1 VOUT2 VOUT1 VOUT2 EFFICIENCY Full Load LOAD FAULT POWER DISSIPATION 4 CAPACITIVE LOAD Overload 4 - - 11 Short Circuit - - 12 W Either Output - - 500 µF SWITCHING FREQUENCY 5 SYNCHRONIZATION FREQUENCY ISOLATION 500 VDC, TCASE = 25°C MTBF (MIL-HDBK-217F) AIF @ TC = 55°C 1X046DSD mAp-p 1.5 0 VOUT2 Cross Regulation 60 - 0 VOUT1 Load Regulation TCASE = -55°C to +125°C 40 Total VOUT2 Line Regulation TCASE = 25°C 0 VOUT1 VOUT1 Ripple Voltage V 550 650 700 kHz 700 750 800 kHz 100 - - MΩ - 350 - kHrs 2 DVSB2800D Series SPECIFICATIONS (TCASE = -55°C to +125°C, VIN = +28V ± 5%, Full Load, 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 6.0 Watts Junction Temperature Rise to Case Storage Temperature Lead Solder Temperature (10 seconds) Weight (Maximum) (Un-Flanged / Flanged) DVSB2853R3D Conditions +15°C -65°C to +150°C 270°C (24 / 28) Grams Units Min Typ Max - 200 400 mVPK - 450 700 µSec - 100 400 mVPK - 300 600 µSec - - 20 mSec DYNAMIC Load Step Output Transient 2, 4 Line Step Recovery VOUT2 VOUT1 2 Load Step Recovery Line Step Output Transient VOUT1 Half Load to Full Load VOUT2 4 VOUT1 VOUT2 VOUT1 VIN = 16V to 40V VOUT2 Turn On Delay Turn On Overshoot Notes: 1. 2. 3. 4. 5. VOUT1 VOUT2 VIN = 0V to 28V - - 25 mVPK - - 15 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. Synchronization is TTL signal with VSYNC MAX = 6V. 1X046DSD 3 DVSB2800D Series BLOCK DIAGRAM 28V IN +VOUT1 PIN 9 PIN 2 IN COM PIN 8 +VOUT2 PIN 4 SYNC OUT COM PIN 7 PIN 3 PRIMARY HOUSEKEEPING SUPPLY INH DUAL PWM CONTROLLER TRANSFORMER ISOLATED ERROR SIGNAL FEEDBACK VOLTAGE ERROR AMPLIFIERS TRANSFORMER ISOLATED POWER FEEDFORWARD SECONDARY HOUSKEEPING SUPPLY PIN 1 Figure 2 1X046DSD 4 DVSB2800D Series CONNECTION DIAGRAM 9 7 28 Vdc + - 1 8 28V IN SYNC +VOUT1 +VOUT2 2 LOAD 4 LOAD INH 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) 1X046DSD 5 DVSB2800D Series EMI FILTER HOOKUP DIAGRAM DVSB2853R3D DC-DC CONVERTER DVMH28 EMI FILTER 1 28V IN 28V OUT 2 9 28V IN +VOUT1 2 LOAD 7 4 SYNC 28 Vdc + - +VOUT2 LOAD 1 INH 5 4 8 IN COM OUT COM 3 3 IN COM OUT COM CASE 6 Figure 6 – Converter with EMI Filter 1X046DSD 6 DVSB2800D Series EFFICIENCY PERFORMANCE CURVES (TCASE = 25°C) VIN = 15V VIN = 28V VIN = 50V 80 75 Efficiency (%) 70 65 60 55 50 2 4 6 8 10 12 14 Output Power (W) Figure 7 – DVSB2853R3D Efficiency (%) vs. Output Power (W) 1X046DSD 7 DVSB2800D Series EMI PERFORMANCE CURVES (TCASE = 25°C, VIN = +28V ± 5%, Full Load, Unless Otherwise Specified) Figure 9 – DVSB2853R3D without EMI Filter Figure 10 – DVSB2853R3D with EMI Filter 1X046DSD 8 DVSB2800D Series PACKAGE SPECIFICATIONS (NON-FLANGED) TOP VIEW SIDE VIEW PIN FUNCTION 1 INHIBIT 2 +VOUT1 3 OUT COM 4 +VOUT2 5 N/C 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) 1X046DSD 9 DVSB2800D Series PACKAGE SPECIFICATIONS (FLANGED) TOP VIEW SIDE VIEW PIN FUNCTION 1 INHIBIT 2 +VOUT1 3 OUT COM 4 +VOUT2 5 N/C 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) 1X046DSD 10 DVSB2800D 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 +VOUT1 Positive Output 1 Voltage Connection 3 OUT COM Output Common Connection 4 +VOUT2 Positive Output 2 Voltage Connection 5 N/C No Connection 6 CASE Case Connection 7 SYNC Synchronization Signal 8 IN COM Input Common Connection 9 28V IN Positive Input Voltage Connection 1X046DSD 11 DVSB2800D 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: 1X046DSD 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 DVSB2800D Series ORDERING INFORMATION DVSB 28 5 3R3 D F /HB 1 2 3 4 5 6 7 - XXX 8 (1) (2) (3) (4) Product Series Nominal Input Voltage Output 1 Voltage Output 2 Voltage DVSB 28 Volts 28 +5 Volts 5 +3.3 Volts 3R3 (5) (6) (7) (8) Number of Outputs Package Option Screening Code1,2 Additional Screening Code Dual D 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. 1X046DSD 13 DVSB2800D Series SMD (STANDARD MICROCIRCUIT DRAWING) NUMBERS Standard Microcircuit Drawing (SMD) DVSB2800D Series Similar Part Number *T.B.D. DVSB2853R3D/H DVSB2853R3DF/H Do not use the DVSB2800D 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. 1X046DSD 14