DVST2800T Series HIGH RELIABILITY DC-DC CONVERTERS DESCRIPTION FEATURES The DVST series of high reliability DC-DC converters contains internal EMI filtering and meets MIL-STD461C and MIL-STD-461D for conducted emissions, providing a one piece COTS solution for power conversion applications. The DVST series is operable over a wide (-55C to +100C) temperature range with no power derating. Unique to the DVST series is a magnetic feedback circuit that is radiation immune. The three low noise outputs are fully isolated from each other, allowing for maximum flexibility in system design. * * * This product may incorporate one or more of the following U.S. patents: * * * * * * * * * Up to 30 Watts Output Power Three Fully Isolated Outputs Wide Input Voltage Range: 15 to 50 Volts per MIL-STD-704 with 80 Volt Transient for 1 sec Internal Filter Meets MIL-STD-461C and MILSTD-461D Conducted Emissions Requirements NO Use of Optoisolators Undervoltage Lockout Indefinite Short Circuit Protection Current Limit Protection Low Output Noise Custom Versions Available Low Profile (0.380 inches) Package Military Environmental Screening Available 5,784,266 5,790,389 5,963,438 5,999,433 6,005,780 6,084,792 6,118,673 Figure 1 - DVST2800T DC-DC Converter (Not To Scale) 90054DSD 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: vptsales@vpt-inc.com 1 DVST2800T Series SPECIFICATIONS (TCASE = -55C to +100C, VIN = +28V 5%, Full Load, Unless Otherwise Specified) ABSOLUTE MAXIMUM RATINGS Input Voltage (Continuous) Input Voltage (Transient, 1 second) Output Power1 Power Dissipation (Full Load, TCASE = +100C) 50 VDC 80 Volts 30 Watts 15 Watts Operating Case Temperature Storage Temperature Lead Solder Temperature (10 seconds) Weight (Maximum) -55C to +100C -55C to +125C 270C 100 Grams INPUT Parameter DVST2800T Conditions Units Min Typ Max 15 28 50 STATIC Continuous INPUT Voltage Transient, 1 sec Inhibited Current No Load Inhibit Pin Input V 1.6 5.0 mA 65 100 mA 1.5 V 14.0 V 0 Inhibit Pin Open Circuit Voltage 11.0 UVLO Turn On 14.9 UVLO Turn Off 11.8 SWITCHING FREQUENCY 500 VDC V V 225 ISOLATION Input / Output / Case V 80 325 100 kHz M MAIN OUTPUT Parameter DVST283R3xxyyT Conditions DVST285xxyyT Units Min Typ Max Min Typ Max STATIC OUTPUT Voltage VOUT TCASE = 25C 3.26 3.30 3.34 4.95 5.00 5.05 VOUT TCASE = -55C to +100C 3.23 3.30 3.37 4.90 5.00 5.10 V 15 0 20 W 4.5 0 2 Power Current 0 2 VOUT 0 Ripple Voltage VOUT Full Load, 20Hz to 10MHz Line Regulation VOUT Load Regulation VOUT 4.0 A 20 50 mVp-p 20 5 20 mV 30 10 30 mV 20 50 VIN = 15V to 50V 5 No Load to Full Load 10 EFFICIENCY 73 CAPACITIVE LOAD V 76 1000 % 1000 F DYNAMIC Load Step Output Transient VOUT 3 Load Step Recovery Line Step Output Transient VOUT 3 Line Step Recovery Turn On Delay Turn On Overshoot 90054DSD VOUT Half Load to Full Load VIN = 15V to 50V VIN = 0V to 28V 200 400 200 400 mVPK 200 400 200 400 Sec mVPK 400 600 400 600 400 600 400 600 Sec 15 20 15 20 mSec 0 30 0 50 mVPK 2 DVST2800T Series SPECIFICATIONS (TCASE = -55C to +100C, VIN = +28V 5%, Full Load, Unless Otherwise Specified) ABSOLUTE MAXIMUM RATINGS Input Voltage (Continuous) Input Voltage (Transient, 1 second) Output Power1 Power Dissipation (Full Load, TCASE = +100C) 50 VDC 80 Volts 30 Watts 15 Watts Operating Case Temperature Storage Temperature Lead Solder Temperature (10 seconds) Weight (Maximum) -55C to +100C -55C to +125C 270C 100 Grams MAIN OUTPUT Parameter DVST281R8xxyyT Conditions Min Typ Max DVST286R25xxyyT Min Typ Units Max STATIC OUTPUT Voltage VOUT TCASE = 25C 1.78 1.80 1.82 6.19 6.25 6.31 V VOUT TCASE = -55C to +100C 1.76 1.80 1.84 6.12 6.25 6.38 V 13.5 0 20 W 7.5 0 2 Power Current 0 2 3.2 A Ripple Voltage VOUT VOUT Full Load, 20Hz to 10MHz 0 20 75 20 50 mVp-p Line Regulation VOUT VIN = 15V to 50V 5 20 5 20 mV Load Regulation VOUT No Load to Full Load 10 30 10 30 mV 1000 F mVPK EFFICIENCY 66 CAPACITIVE LOAD 76 1000 % DYNAMIC Load Step Output Transient VOUT 3 Load Step Recovery Line Step Output Transient VOUT 3 Line Step Recovery Turn On Delay Turn On Overshoot 90054DSD VOUT Half Load to Full Load VIN = 15V to 50V VIN = 0V to 28V 200 400 200 400 500 750 200 400 Sec 400 600 400 600 mVPK 400 750 400 600 Sec 15 20 15 20 mSec 0 20 0 50 mVPK 3 DVST2800T Series SPECIFICATIONS (TCASE = -55C to +100C, VIN = +28V 5%, Full Load, Unless Otherwise Specified) ABSOLUTE MAXIMUM RATINGS Input Voltage (Continuous) Input Voltage (Transient, 1 second) Output Power1 Power Dissipation (Full Load, TCASE = +100C) 50 VDC 80 Volts 30 Watts 15 Watts Operating Case Temperature Storage Temperature Lead Solder Temperature (10 seconds) Weight (Maximum) -55C to +100C -55C to +125C 270C 100 Grams MAIN OUTPUT Parameter Conditions DVST2812xxyyT Min Typ Units Max STATIC OUTPUT Voltage VOUT TCASE = 25C 11.88 12.00 12.12 V VOUT TCASE = -55C to +100C 11.76 12.00 12.24 V 20 W 2 Power Current 2 1.67 A Ripple Voltage VOUT VOUT Full Load, 20Hz to 10MHz 50 mVp-p Line Regulation VOUT VIN = 15V to 50V 50 mV Load Regulation VOUT No Load to Full Load 50 mV 500 F 200 400 mVPK EFFICIENCY 76 CAPACITIVE LOAD % DYNAMIC Load Step Output Transient VOUT 3 Load Step Recovery Line Step Output Transient VOUT 3 Line Step Recovery Turn On Delay Turn On Overshoot 90054DSD VOUT Half Load to Full Load VIN = 15V to 50V VIN = 0V to 28V 200 400 Sec 400 600 mVPK 200 600 Sec 15 20 mSec 0 50 mVPK 4 DVST2800T Series SPECIFICATIONS (TCASE = -55C to +100C, VIN = +28V 5%, Full Load, Unless Otherwise Specified) ABSOLUTE MAXIMUM RATINGS Input Voltage (Continuous) Input Voltage (Transient, 1 second) Output Power1 Power Dissipation (Full Load, TCASE = +100C) 50 VDC 80 Volts 30 Watts 15 Watts Operating Case Temperature Storage Temperature Lead Solder Temperature (10 seconds) Weight (Maximum) -55C to +100C -55C to +125C 270C 100 Grams AUXILIARY OUTPUT Parameter DVST28x12yyT Conditions DVST28x15yyT Units Min Typ Max Min Typ Max STATIC OUTPUT Voltage VOUT TCASE = 25C 11.76 12.00 12.24 14.70 15.00 15.30 VOUT TCASE = -55C to +100C 11.64 12.00 15.00 2 Power Current 2 VOUT V 12.36 14.55 15.45 V 0 5 0 5 W 0 0.42 0 0.33 A Ripple Voltage VOUT Full Load, 20Hz to 10MHz 25 50 25 50 mVp-p Line Regulation VOUT VIN = 15V to 50V 5 20 5 20 mV Load Regulation VOUT No Load to Full Load 10 50 10 50 mV 500 F mVPK CAPACITIVE LOAD 500 DYNAMIC Load Step Output Transient VOUT 3 Load Step Recovery Line Step Output Transient VOUT 3 Line Step Recovery Turn On Delay Turn On Overshoot 90054DSD VOUT Half Load to Full Load VIN = 15V to 50V VIN = 0V to 28V 200 400 200 400 100 200 100 200 Sec 100 400 100 400 mVPK 100 200 100 200 Sec 2 20 2 20 mSec 100 250 100 250 mVPK 5 DVST2800T Series SPECIFICATIONS (TCASE = -55C to +100C, VIN = +28V 5%, Full Load, Unless Otherwise Specified) ABSOLUTE MAXIMUM RATINGS Input Voltage (Continuous) Input Voltage (Transient, 1 second) Output Power1 Power Dissipation (Full Load, TCASE = +100C) 50 VDC 80 Volts 30 Watts 15 Watts Operating Case Temperature Storage Temperature Lead Solder Temperature (10 seconds) Weight (Maximum) -55C to +100C -55C to +125C 270C 100 Grams AUXILIARY OUTPUT Parameter DVST28x3R3yyT Conditions DVST28x5yyT Units Min Typ Max Min Typ Max STATIC OUTPUT Voltage VOUT TCASE = 25C 3.23 3.30 3.37 4.90 5.00 5.10 VOUT TCASE = -55C to +100C 3.20 3.30 3.40 4.85 5.00 2 Power Current 2 VOUT V 5.15 V 4 5 W 1.2 1.0 A Ripple Voltage VOUT Full Load, 20Hz to 10MHz 25 50 25 50 mVp-p Line Regulation VOUT VIN = 15V to 50V 5 20 5 20 mV Load Regulation VOUT No Load to Full Load 10 30 10 30 mV 1000 F mVPK CAPACITIVE LOAD 1000 DYNAMIC Load Step Output Transient VOUT 3 Load Step Recovery Line Step Output Transient VOUT 3 Line Step Recovery Turn On Delay VOUT Turn On Overshoot Notes: Half Load to Full Load VIN = 15V to 50V VIN = 0V to 28V 100 200 100 200 100 200 100 200 Sec 100 200 100 200 mVPK 100 200 100 200 Sec 2 20 2 20 mSec 0 50 0 50 mVPK 1. Dependant on output voltage. 2. Derate linearly from full rating at 100C to 0 at 110C. 3. Time for output voltage to settle to within 1% of its nominal value. CONNECTION DIAGRAM 1 28V IN +MAIN OUT MAIN RET +AUX1 OUT 28 Vdc + - DVST2800T 4 AUX1 RET INH +AUX2 OUT 3 IN COM AUX2 RET 2 5 6 LOAD 7 8 LOAD 9 10 LOAD CASE Figure 2 90054DSD 6 DVST2800T Series BLOCK DIAGRAM PIN 5 PIN 1 +V OUT 28V IN PIN 2 OUT COM CASE PIN 6 IN COM MAGNETIC FEEDBACK PWM CONTROL PIN 3 VOLTAGE AND CURRENT AMPLIFIERS SECONDARY HOUSEKEEPING SUPPLY UNDER VOLTAGE SHUTDOWN PIN 7 LINEAR REGULATOR +V OUT PRIMARY HOUSEKEEPING SUPPLY INH PIN 4 OUT COM PIN 8 PIN 9 LINEAR REGULATOR +V OUT PWM CONTROL OUT COM PIN 10 Figure 3 INHIBIT DRIVE CONNECTION DIAGRAMS 28V IN 1 28V IN 1 20K INH 4 OPTIONAL CAPACITOR BIAS 11V IN COM 3 20K OPTOISOLATOR INH 4 OPTIONAL CAPACITOR BIAS 11V IN COM 3 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) 90054DSD 7 DVST2800T Series EFFICIENCY PERFORMANCE CURVES (TCASE = 25C, Full Load, Unless Otherwise Specified) VIN = 15V VIN = 28V VIN = 50V Figure 6 - DVST2851212T Figure 7 - DVST2851515T Efficiency (%) vs. Output Power (W) Efficiency (%) vs. Output Power (W) Figure 8 - DVST283R31212T Figure 9 - DVST283R31515T Efficiency (%) vs. Output Power (W) Efficiency (%) vs. Output Power (W) 90054DSD 8 DVST2800T Series EMI PERFORMANCE CURVES (TCASE = +25C, VIN = +28V 5%, Full Load, Unless Otherwise Specified) Figure 10 - MIL-STD-461C CE03 Conducted Emissions Figure 11 - MIL-STD-461D CE102 Conducted Emissions ENVIRONMENTAL QUALIFICATION Description MIL-STD-883 MIL-STD-202 Test Condition Temperature Cycling 1010 102A -55C to +100C, 100 cycles Constant Acceleration 2001 212A 500g, 1min. Mechanical Shock 2002 Cond. A 213B Cond. D 500g, 1ms Random Vibration 2026 Cond. D 214A Cond. D 11.6G RMS, operating Moisture Resistance 1004 106F 10 days Barometric Pressure 1001 Cond. D 105C Cond. C 70,000 ft, operating Salt Atmosphere 1009 Cond. B 101D Cond. B 48 hrs. Resistance to Solvents 2015 215J Solderability 2003 208H 90054DSD 9 DVST2800T Series PACKAGE SPECIFICATIONS PIN Note: FUNCTION 1 28V IN 2 CASE 3 IN COM 4 INHIBIT 5 +MAIN OUT 6 MAIN RET 7 +AUX1 OUT 8 AUX1 RET 9 +AUX2 OUT 10 AUX2 RET Additional mounting options are available. Consult the factory for details. Figure 12 - Package and Pinout (Dimensional Limits are 0.005" Unless Otherwise Stated) 90054DSD 10 DVST2800T Series PACKAGE PIN DESCRIPTION Pin Function Description 1 28V IN Positive Input voltage Connection 2 CASE Case Connection 3 IN COM Input Common Connection 4 INHIBIT Logic Low = Disabled Output. Connecting the inhibit pin to input common (PIN 7) causes converter shutdown. Logic High = Enabled Output. Unconnected or open collector TTL. 5 +MAIN OUT Main Positive Output Voltage Connection 6 MAIN RET Main Output Return Connection 7 +AUX1 OUT Auxiliary Positive Output Voltage Connection 8 AUX1 RET Auxiliary Output Return Connection 9 +AUX2 OUT Auxiliary Positive Output Voltage Connection 10 AUX2 RET Auxiliary Output Return Connection ENVIRONMENTAL SCREENING Screening Condition Standard (No Suffix) Military /ML * * Pre-Cap Inspection IPC-A-610 Class II Temperature Cycling -55C, 100C, 10 Cycles Burn-In 96 hours at +100C 12 hours at +100C * Final Electrical 100% at -55C, 25C, 100C1 100% at 25C * Final Inspection MIL-STD-883, Test Method 2009 * 90054DSD * * * * 11 DVST2800T Series ORDERING INFORMATION DVST 28 5 15 15 T 1 2 3 4 5 6 /ML 7 - XXX 8 9 (1) (2) (3) (4) (5) Product Series Nominal Input Voltage Main Output Auxiliary Output 1 Auxiliary Output 2 DVST 28 28 Volts 1R8 3R3 5 6R25 12 1.8 Volts 3.3 Volts 5 Volts 6.25 Volts 12 Volts 3R3 5 12 15 3.3 Volts 5 Volts 12 Volts 15 Volts 5 Volts 12 Volts 15 Volts 5 12 15 (6) (7) (8) (9) Number of Outputs Package Option Screening Code1 Additional Screening Code Triple T Notes: 1. None Standard None /ML Standard Military Contact Sales VPT Inc. reserves the right to ship higher screened 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, or packaging requirements. 90054DSD 12 DVST2800T Series 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 vptsales@vpt-inc.com 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. 90054DSD 13