DVFL2800D Series HIGH RELIABILITY HYBRID DC-DC CONVERTERS DESCRIPTION FEATURES The DVFL 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 DVFL series is a magnetic feedback circuit that is radiation immune. Operating at a nominal fixed frequency of 500 kHz, these regulated, isolated units utilize well-controlled undervoltage lockout circuitry to eliminate slow start-up problems. The current sharing function allows a maximum of five units to be connected in parallel to boost the total output power to 5 times. The output voltage is trimmable up to +10% or down –20%. • • • • 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 Parallel Up to 5 Units With Current Sharing Output Voltage Trim Up +10% or Down –20% Wide Input Voltage Range: 16 to 40 Volts per MIL-STD-704 Up to 120 Watts Output Power Radiation Immune Magnetic Feedback Circuit NO Use of Optoisolators Undervoltage Lockout Industry Standard Pinout Input Transient Voltage: 50 Volts for 1 second Radiation Hardened Version Available Precision Seam Welded Hermetic Package High Power Density: > 80 W/in3 Custom Versions Available Additional Environmental Screening Available Meets MIL-STD-461C and MIL-STD-461D EMC Requirements When Used With a DVME28 EMI Filter MIL-PRF-38534 Element Evaluated Components Figure 1 – DVFL2800D DC-DC Converter (Not To Scale) 12011DSB 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 DVFL2800D 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 Power1 Power Dissipation (Full Load, TCASE = +125°C) Parameter 40 VDC 50 Volts 120 Watts 40 Watts Junction Temperature Rise to Case Storage Temperature Lead Solder Temperature (10 seconds) Weight DVFL2805D Conditions Min Typ +15°C -65°C to +150°C 270°C 100 grams DVFL2812D Max Min Typ Max Units STATIC Continuous INPUT 4 Voltage Current 16 28 40 16 28 40 V Transient, 1 sec - - 50 - - 50 V Inhibited 1 - - 3 - - 3 mA Inhibited 2 - - 70 - - 70 mA No Load - - 140 - - 140 mA 5 Ripple Current - - 80 - - 80 mAp-p INH1 Pin Input 4 Full Load , 20Hz to 10MHz 0 - 1.5 0 - 1.5 V INH2 Pin Input 4 0 - 1.0 0 - 1.0 V INH1 Pin Open Circuit Voltage 4 10.5 - 13.5 10.5 - 13.5 V INH2 Pin Open Circuit Voltage 4 5.0 - 8.0 5.0 - 8.0 V 14.0 - 16.0 14.0 - 16.0 V V UVLO Turn On 4 UVLO Turn Off OUTPUT 5 Voltage - 14.5 11.0 - 14.5 TCASE = 25°C 4.95 5.00 5.05 11.88 12.00 12.12 V +VOUT TCASE = -55°C to +125°C 4.925 5.00 5.075 11.82 12.00 12.18 V -VOUT TCASE = 25°C 4.80 5.00 5.20 11.80 12.00 12.20 V -VOUT TCASE = -55°C to +125°C 4.75 5.00 5.25 11.52 12.00 12.48 V - - 100 - - 110 W W Total 3,6 Power Current 11.0 +VOUT 3,6 Ripple Voltage Line Regulation Load Regulation Cross Regulation ±VOUT Either Output - - 70 - - 77 ±VOUT Either Output - - 14 - - 6.4 A ±VOUT Full Load , 20Hz to 10MHz - - 80 - - 80 mVp-p +VOUT VIN = 16V to 40V - - 20 - - 20 mV -VOUT VIN = 16V to 40V - - 200 - - 200 mV +VOUT No Load to Full Load 5 - - 100 - - 120 mV 5 5 -VOUT No Load to Full Load - - 200 - - 200 mV -VOUT V1+ Load 30% - Load 70% V2+ Load 70% - Load 30% - - 450 - - 450 mV Voltage Trim Full Load Share Pin Voltage -20 - 10 -20 - 10 % 2.0 - 3.0 2.0 - 3.0 V 5 73 - - 80 - - % 4 - - 80 - - 80 W - - 80 - - 80 W 4 EFFICIENCY Full Load LOAD FAULT POWER DISSIPATION Overload Short Circuit 4 CAPACITIVE LOAD SWITCHING FREQUENCY SYNC FREQUENCY RANGE ISOLATION VH – VL = 5V Duty Cycle = 20% - 80% 500 VDC, TCASE = 25°C - - 500 - - 500 µF 450 500 600 450 500 600 kHz 500 - 600 500 - 600 kHz 100 - - 100 - - MΩ 12 - - 12 - °C/W 400 - - 400 - kHrs THERMAL RESISTANCE Case to Ambient (θCA) - MTBF (MIL-HDBK-217F) AIF @ TC = 55°C - 12011DSB 2 DVFL2800D 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 Power1 Power Dissipation (Full Load, TCASE = +125°C) Parameter 40 VDC 50 Volts 120 Watts 40 Watts Conditions Junction Temperature Rise to Case Storage Temperature Lead Solder Temperature (10 seconds) Weight DVFL2805D +15°C -65°C to +150°C 270°C 100 grams DVFL2812D Min Typ Max Min Typ Max - - 400 - - 500 Units DYNAMIC Load Step Output Transient ±VOUT 2 Load Step Recovery Line Step Output Transient 4 ±VOUT 2, 4 Line Step Recovery Turn On Delay ±VOUT 2 Turn On Overshoot Notes: 1. 2. 3. 4. 5. 6. Half Load to Full Load VIN = 16V to 40V VIN = 0V to 28V mVPK - - 500 - - 500 µSec - 300 600 - 600 1200 mVPK - 300 500 - 300 500 µSec - - 20 - - 20 mSec - - 25 - - 25 mVPK Dependant on output voltage. Time for output voltage to settle within 1% of its nominal value. Derate linearly to 0 at 135°C. Verified by qualification testing. Half load at +VOUT and half load at –VOUT. Up to 70% of the total power or current can be drawn from any one of the two outputs. 12011DSB 3 DVFL2800D 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 Power1 Power Dissipation (Full Load, TCASE = +125°C) Parameter 40 VDC 50 Volts 120 Watts 40 Watts Junction Temperature Rise to Case Storage Temperature Lead Solder Temperature (10 seconds) Weight DVFL2815D Conditions Min Typ Max +15°C -65°C to +150°C 270°C 100 grams Units STATIC Continuous INPUT 4 Voltage Current 16 28 40 V Transient, 1 sec - - 50 V Inhibited 1 - - 3 mA Inhibited 2 - - 70 mA No Load - - 140 mA 5 Ripple Current - - 120 mAp-p INH1 Pin Input 4 Full Load , 20Hz to 10MHz 0 - 1.5 V INH2 Pin Input 4 0 - 1.0 V INH1 Pin Open Circuit Voltage 4 10.5 - 13.5 V INH2 Pin Open Circuit Voltage 4 5.0 - 8.0 V 14.5 - 16.0 V V UVLO Turn On 4 UVLO Turn Off OUTPUT 5 Voltage - 14.5 TCASE = 25°C 14.85 15.00 15.15 V +VOUT TCASE = -55°C to +125°C 14.775 15.00 15.225 V -VOUT TCASE = 25°C 14.80 15.00 15.20 V -VOUT TCASE = -55°C to +125°C 14.40 15.00 15.60 V - - 120 W W Total 3,6 Power Current 11.0 +VOUT 3,6 Ripple Voltage Line Regulation Load Regulation Cross Regulation ±VOUT Either Output - - 84 ±VOUT Either Output - - 5.6 A ±VOUT Full Load , 20Hz to 10MHz - - 80 mVp-p +VOUT VIN = 16V to 40V - - 20 mV -VOUT VIN = 16V to 40V - - 200 mV +VOUT No Load to Full Load 5 - - 120 mV 5 5 -VOUT No Load to Full Load - - 200 mV -VOUT V1+ Load 30% - Load 70% V2+ Load 70% - Load 30% - - 450 mV -20 - 10 % 2.0 - 3.0 V 5 81 - - % 4 - - 80 W - - 80 W Voltage Trim Full Load Share Pin Voltage 4 EFFICIENCY Full Load LOAD FAULT POWER DISSIPATION Overload Short Circuit 4 CAPACITIVE LOAD SWITCHING FREQUENCY SYNC FREQUENCY RANGE ISOLATION VH – VL = 5V Duty Cycle = 20% - 80% 500 VDC, TCASE = 25°C - - 500 µF 450 500 600 kHz 500 - 600 kHz 100 - - MΩ 12 - °C/W 400 - kHrs THERMAL RESISTANCE Case to Ambient (θCA) - MTBF (MIL-HDBK-217F) AIF @ TC = 55°C - 12011DSB 4 DVFL2800D 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 Power1 Power Dissipation (Full Load, TCASE = +125°C) Parameter 40 VDC 50 Volts 120 Watts 40 Watts Conditions Junction Temperature Rise to Case Storage Temperature Lead Solder Temperature (10 seconds) Weight DVFL2815D Min Typ Max - - 500 +15°C -65°C to +150°C 270°C 100 grams Units DYNAMIC Load Step Output Transient ±VOUT 2 Load Step Recovery Line Step Output Transient 4 ±VOUT 2, 4 Line Step Recovery Turn On Delay ±VOUT 2 Turn On Overshoot Notes: 1. 2. 3. 4. 5. 6. Half Load to Full Load VIN = 16V to 40V VIN = 0V to 28V mVPK - - 500 µSec - 600 1200 mVPK - 300 500 µSec - - 20 mSec - - 50 mVPK Dependant on output voltage. Time for output voltage to settle within 1% of its nominal value. Derate linearly to 0 at 135°C. Verified by qualification testing. Half load at +VOUT and half load at –VOUT. Up to 70% of the total power or current can be drawn from any one of the two outputs. 12011DSB 5 DVFL2800D Series BLOCK DIAGRAM PIN 7 +V OUT PIN 8 OUT COM PIN 1 28V IN -V OUT IN COM PIN 9 PIN 2 Q1 MAGNETIC FEEDBACK UNDER VOLTAGE SHUTDOWN VOLTAGE AND CURRENT AMPLIFIERS TRIM PIN 10 SHARE PIN 11 PRIMARY HOUSEKEEPING SUPPLY INH1 SYNC IN SECONDARY HOUSEKEEPING SUPPLY PIN 4 PIN 6 SYNC OUT INH2 PIN 12 PWM CONTROL PIN 5 Figure 2 CONNECTION DIAGRAM 1 7 28V IN 6 +V OUT -V OUT 9 SYNC IN 28 Vdc + - 4 INH2 INH1 LOAD 12 2 IN COM OUT COM 8 Figure 3 12011DSB 6 DVFL2800D Series INHIBIT DRIVE CONNECTION DIAGRAM 28V IN 1 30K OPTOISOLATOR BIAS 1 INH1 4 OPTIONAL CAPACITOR BIAS 2 12 2K INH2 12V 8V + 8 IN COM 2 OUT COM Figure 4 – Isolated Inhibit Drive and Internal Equivalent Circuit (Shown with optional capacitor for turn-on delay) EMI FILTER HOOKUP DIAGRAM DVME28 EMI FILTER 1 28V IN 28V OUT 28V IN 28V OUT 2 + - 1 6 28V OUT IN COM OUT COM IN COM OUT COM IN COM OUT COM 4 - V OUT 4 9 5 +V OUT 9 SYNC IN 10 28V IN 7 28V IN 11 3 28 Vdc DVFL2800D DC-DC CONVERTER 12 INH2 INH1 LOAD 12 8 6 7 2 IN COM OUT COM 8 CASE Figure 5 – Converter with EMI Filter 12011DSB 7 DVFL2800D Series +28 VOLT OUTPUT CONNECTION DIAGRAM DVFL2815D DC-DC CONVERTER 1 7 28V IN 10 6 SYNC IN 28 Vdc + - +V OUT TRIM 100k 12 INH2 4 + 28 Vdc INH1 OUT COM 2 8 IN COM -V OUT 9 Figure 6: +28 Volt Output Converter Using DVFL2815D Converter 12011DSB 8 DVFL2800D Series PARALLEL CONNECTION DIAGRAM DVME28 EMI FILTER 1 28V IN 28V OUT 28V IN 28V OUT 28V IN 28V OUT 2 11 3 28 Vdc + - DVFL2800D DC-DC CONVERTER 12 1 IN COM IN COM IN COM 11 8 9 4 8 5 7 2 OUT COM INH1 OUT COM 6 7 SHARE SYNC IN OUT COM 5 +V OUT 6 10 4 28V IN SYNC OUT OUT COM 9 -V OUT IN COM CASE CASE DVFL2800D DC-DC CONVERTER 1 7 28V IN +V OUT 6 11 SHARE SYNC IN 8 OUT COM 4 INH1 5 SYNC OUT 9 2 -V OUT IN COM CASE DVFL2800D DC-DC CONVERTER 1 7 28V IN +V OUT 6 11 SHARE SYNC IN 8 4 OUT COM INH1 9 2 IN COM -V OUT CASE Figure 7 – Current Sharing Parallel Connection for Multiple Converters 12011DSB 9 DVFL2800D Series OUTPUT VOLTAGE TRIM The output voltage can be trimmed down by connecting a resistor between the TRIM pin (PIN 10) and the +V OUT pin (PIN 7), or can be trimmed up by connecting a resistor between the TRIM pin (PIN 10) and the OUT COM pin (PIN 8). The maximum trim range is +10% up and –20% down. The appropriate resistor values versus the output voltage are given in the trim table below. Figure 8 – Output Voltage Trim DVFL2805D 12011DSB DVFL2812D DVFL2815D ±VOUT (V) RTRIM (Ω) ±VOUT (V) RTRIM (Ω) ±VOUT (V) RTRIM (Ω) 5.5 5.4 5.3 5.2 5.1 5.0 4.9 4.8 4.7 4.6 4.5 4.4 4.3 4.2 4.1 35k 47.5k 68.3k 110k 235k 225k 100k 58.3k 37.5k 25k 16.7k 10.7k 6.3k 2.8k 13.2 13.0 12.8 12.6 12.4 12.2 12.0 11.8 11.6 11.4 11.2 11.0 10.8 10.6 10.4 5.8k 10k 16.2k 26.6k 47.3k 109k 454k 213k 134k 94k 70.1k 54.3k 42.9k 34.4k 16.50 16.25 16.00 15.75 15.50 15.25 15.00 14.75 14.50 14.25 14.00 13.75 13.50 13.25 13.00 1.7k 5k 10k 18.3k 35k 85k 475k 225k 142k 100k 75k 58.3k 46.4k 37.5k 4.0 0 10.2 10.0 9.8 9.6 27.8k 22.5k 18.2k 14.6k 12.75 12.50 12.25 12.00 30.6k 25k 20.5k 16.7k 10 DVFL2800D Series EFFICIENCY PERFORMANCE CURVES (TCASE = 25°C, Full Load, Unless Otherwise Specified) VIN = 16V VIN = 28V VIN = 40V 90 90 85 85 80 80 75 70 20 40 60 80 75 100 30 50 Output Power (W) 70 90 110 Out put P owe r ( W) Figure 9 – DVFL2805D Figure 10 – DVFL2812D Efficiency (%) vs. Output Power (W) Efficiency (%) vs. Output Power (W) 90 85 80 75 30 50 70 90 110 Out p ut Po wer ( W ) Figure 11 – DVFL2815D Efficiency (%) vs. Output Power (W) 12011DSB 11 DVFL2800D Series EMI PERFORMANCE CURVES (TCASE = 25°C, VIN = +28V ± 5%, Full Load, Unless Otherwise Specified) Figure 12 – DVFL2800D without EMI Filter Figure 13 – DVFL2800D with EMI Filter 12011DSB 12 DVFL2800D Series PACKAGE SPECIFICATIONS TOP VIEW PIN FUNCTION 1 28V IN 2 IN COM 3 N/C 4 INH1 5 SYNC OUT 6 SYNC IN 7 +V OUT 8 OUT COM 9 -V OUT 10 TRIM 11 SHARE 12 INH2 SIDE VIEW Figure 14 – Package and Pinout (Pin Length is ±0.01”, Other Dimensional Limits are ±0.005” Unless Otherwise Stated) 12011DSB 13 DVFL2800D Series PACKAGE SPECIFICATIONS (DOWN-LEADED) TOP VIEW PIN FUNCTION 1 28V IN 2 IN COM 3 N/C 4 INH1 5 SYNC OUT 6 SYNC IN 7 +V OUT 8 OUT COM 9 -V OUT 10 TRIM 11 SHARE 12 INH2 SIDE VIEW Figure 15 – Package and Pinout (With Down-Leaded Pin Extensions Added) (Pin Length is ±0.01”, Other Dimensional Limits are ±0.005” Unless Otherwise Stated) 12011DSB 14 DVFL2800D Series PACKAGE SPECIFICATIONS (UP-LEADED) TOP VIEW PIN FUNCTION 1 28V IN 2 IN COM 3 N/C 4 INH1 5 SYNC OUT 6 SYNC IN 7 +V OUT 8 OUT COM 9 -V OUT 10 TRIM 11 SHARE 12 INH2 SIDE VIEW Figure 16 – Package and Pinout (With Up-Leaded Pin Extensions Added) (Pin Length is ±0.01”, Other Dimensional Limits are ±0.005” Unless Otherwise Stated) 12011DSB 15 DVFL2800D Series PACKAGE PIN DESCRIPTION Pin Function Description 1 28V IN Positive Input Voltage Connection 2 IN COM Input Common Connection 3 N/C No Connection 4 INH1 Logic Low = Disabled Output. Connecting the inhibit(1) pin to input common causes converter shutdown. Logic High = Enabled Output. Unconnected or open collector TTL. 5 SYNC OUT Output Synchronization Signal 6 SYNC IN Input Synchronization Signal 7 +V OUT Positive Output Voltage Connection 8 OUT COM Output Common Connection 9 -V OUT Negative Output Voltage Connection 10 TRIM Trim Output Voltage to +10%, -20% of Nominal Value 11 SHARE Current Share 12 INH2 Logic Low = Disabled Output. Connecting the inhibit(2) pin to output common causes converter shutdown. Logic High = Enabled Output. Unconnected or open collector TTL. 12011DSB 16 DVFL2800D Series 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 Hermeticity Method 1014, Fine Leak, Condition A Method 1014, Gross Leak, Condition C Dip (1 x 10-3) • Final Electrical MIL-PRF-38534, Group A1 100% at 25°C • • Final Inspection Method 2009 • • Note: 12011DSB 1. • • • • • • • • • • • • 100% R&R testing at –55°C, +25°C, and +125°C with all test data included in product shipment. 17 DVFL2800D Series ORDERING INFORMATION DVFL 28 05 D R DL /HB 1 2 3 4 5 6 7 - XXX 8 (1) (2) (3) (4) Product Series Nominal Input Voltage Output Voltage Number of Outputs DVFL 28 Volts 28 ±5 Volts ±12 Volts ±15 Volts 05 12 15 Dual D (5) (6) (7) (8) Rad-Hard Option Package Option Screening Code Additional Screening Code None R Standard 100 kRad None DL UL Standard Down-Lead Up-Lead 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. 12011DSB 18