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DVETR2800D Series
HIGH RELIABILITY HYBRID DC-DC CONVERTERS WITH INTEGRAL EMI FILTER
DESCRIPTION
The DVETR 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 DVETR series is a fault tolerant magnetic feedback circuit. Operating at a nominal fixed frequency of 500 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
FEATURES
* * * * * * * * * * * * * * * * * * * * High Reliability Very Low Output Noise Wide Input Voltage Range: 15 to 50 Volts per MIL-STD-704 Up to 40 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 Solder Seal Hermetic Package High Power Density: > 30 W/in3 Custom Versions Available Additional Environmental Screening Available No External EMI Filter Required Meets MIL-STD-461C and MIL-STD-461D EMC Requirements Protects Against Conducted Susceptibility Specified in MIL-STD-461C, CS01 and CS02 Flanged and Non-flanged Versions Available MIL-PRF-38534 Element Evaluated Components
Figure 1 - DVETR2800D / DVETR2800DF DC-DC Converter (Not To Scale)
1X032DSE
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
DVETR2800D Series
SPECIFICATIONS (TCASE = -55C to +125C, 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 = +125C)
Parameter
50 VDC 80 Volts 40 Watts 14 Watts
Junction Temperature Rise to Case Storage Temperature Lead Solder Temperature (10 seconds) Weight (Maximum) (Un-Flanged / Flanged)
DVETR2805D Min Typ Max Min DVETR2812D Typ
+15C -65C to +150C 270C (51 / 55) Grams
Units Max
Conditions
STATIC
INPUT 4 Voltage Current Inhibit Pin Input UVLO Turn On UVLO Turn Off OUTPUT 5 Voltage
4 4 4
Continuous Transient, 1 sec Inhibited No Load
15 0 9.0 13.5 11.0
28 11.0 5.0 5.0 5.0 5.0 500 413
50 80 6 90 1.5 13.0 14.8 14.5 5.05 5.075 5.20 5.30 30 21 4.2 60 20 200 50 200 650 16 16 500 550 -
15 0 9.0 13.5 11.0 11.88 11.82 11.80 11.64 0 0 0 74 400 100 -
28 11.0 12.0 12.0 12.0 12.0 500 413
50 80 6 90 1.5 13.0 14.8 14.5 12.12 12.18 12.20 12.36 40 28 2.33 50 20 200 50 200 650 14 14 500 550 -
V V mA mA V V V V V V V V W W A mVp-p mV mV mV mV mV % W W F kHz M kHrs
Inhibit Pin Open Circuit Voltage
+VOUT +VOUT -VOUT -VOUT Power
3,6
TCASE = 25C TCASE = -55C to +125C TCASE = 25C TCASE = -55C to +125C Either Output Either Output Full Load , 20Hz to 10MHz VIN = 16V to 40V VIN = 16V to 40V No Load to Full Load No Load to Full Load
5 5 5
4.95 4.925 4.80 4.70 0 0 0 70 400 100 -
Total VOUT VOUT VOUT +VOUT -VOUT +VOUT -VOUT -VOUT
Current
3,6
Ripple Voltage Line Regulation Load Regulation Cross Regulation EFFICIENCY
+Load 70%, -Load 30% +Load 30%, -Load 70% Full Load Overload
5 4
LOAD FAULT POWER DISSIPATION CAPACITIVE LOAD ISOLATION MTBF (MIL-HDBK-217F) See notes next page.
4
Short Circuit Either Output 500 VDC, TCASE = 25C AIF @ TC = 55C
SWITCHING FREQUENCY
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DVETR2800D Series
SPECIFICATIONS (TCASE = -55C to +125C, 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 = +125C) 50 VDC 80 Volts 40 Watts 14 Watts Junction Temperature Rise to Case Storage Temperature Lead Solder Temperature (10 seconds) Weight (Maximum) (Un-Flanged / Flanged)
DVETR2805D Min Typ Max Min DVETR2812D Typ Max
+15C -65C to +150C 270C (51 / 55) Grams
Parameter
Conditions
Units
DYNAMIC
Load Step Output Transient Load Step Recovery Line Step Recovery Turn On Delay Turn On Overshoot
2 4
VOUT VOUT VOUT
Half Load to Full Load VIN = 16V to 40V VIN = 0V to 28V
-
150 150 -
500 350 600 500 20 50
-
850 300 -
600 400 1200 500 20 50
mVPK Sec mVPK Sec mSec mVPK
Line Step Output Transient
2, 4
Notes:
1. 2. 3. 4. 5. 6.
Dependant on output voltage. Time for output voltage to settle within 1% of its nominal value. Derate linearly to 0 at 135C. 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.
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DVETR2800D Series
SPECIFICATIONS (TCASE = -55C to +125C, 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 = +125C)
Parameter
50 VDC 80 Volts 40 Watts 14 Watts
Junction Temperature Rise to Case Storage Temperature Lead Solder Temperature (10 seconds) Weight (Maximum) (Un-Flanged / Flanged)
DVETR2815D Min Typ Max Units
+15C -65C to +150C 270C (51 / 55) Grams
Conditions
STATIC
INPUT 4 Voltage Current Inhibit Pin Input UVLO Turn On UVLO Turn Off OUTPUT 5 Voltage
4 4 4
Continuous Transient, 1 sec Inhibited No Load
15 0 9.0 13.5 11.0
28 11.0 15.0 15.0 15.0 15.0 500 413
50 80 6 90 1.5 13.0 14.8 14.5 15.15 15.30 15.30 15.45 40 28 1.87 50 20 200 50 200 650 14 14 500 550 -
V V mA mA V V V V V V V V W W A mVp-p mV mV mV mV mV % W W F kHz M kHrs
Inhibit Pin Open Circuit Voltage
+VOUT +VOUT -VOUT -VOUT Power
3,6
TCASE = 25C TCASE = -55C to +125C TCASE = 25C TCASE = -55C to +125C Either Output Either Output Full Load , 20Hz to 10MHz VIN = 16V to 40V VIN = 16V to 40V No Load to Full Load No Load to Full Load
5 5 5
14.85 14.70 14.70 14.55 75 400 100 -
Total VOUT VOUT VOUT +VOUT -VOUT +VOUT -VOUT -VOUT
Current
3,6
Ripple Voltage Line Regulation Load Regulation Cross Regulation EFFICIENCY
+Load 70%, -Load 30% +Load 30%, -Load 70% Full Load Overload
5 4
LOAD FAULT POWER DISSIPATION CAPACITIVE LOAD ISOLATION MTBF (MIL-HDBK-217F) See notes next page.
4
Short Circuit Either Output 500 VDC, TCASE = 25C AIF @ TC = 55C
SWITCHING FREQUENCY
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4
DVETR2800D Series
SPECIFICATIONS (TCASE = -55C to +125C, 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 = +125C) 50 VDC 80 Volts 40 Watts 14 Watts Junction Temperature Rise to Case Storage Temperature Lead Solder Temperature (10 seconds) Weight (Maximum) (Un-Flanged / Flanged)
DVETR2815D Min Typ Max
+15C -65C to +150C 270C (51 / 55) Grams
Parameter
Conditions
Units
DYNAMIC
Load Step Output Transient Load Step Recovery Line Step Recovery Turn On Delay Turn On Overshoot
2 4
VOUT VOUT VOUT
Half Load to Full Load VIN = 16V to 40V VIN = 0V to 28V
-
850 300 -
600 300 1200 500 20 50
mVPK Sec mVPK Sec mSec mVPK
Line Step Output Transient
2, 4
Notes:
1. 2. 3. 4. 5. 6.
Dependant on output voltage. Time for output voltage to settle within 1% of its nominal value. Derate linearly to 0 at 135C. 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.
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DVETR2800D Series
BLOCK DIAGRAM
D2 PIN 3 +V OUT C3 Rs3
T1 PIN 1 28V IN EMI FILTER IN COM PIN 10 Q1
OUT COM D1 C2 PIN 5 -V OUT Rs2 PIN 4
UNDER VOLTAGE SHUTDOWN
Rs1
MAGNETIC FEEDBACK
VOLTAGE AND CURRENT AMPLIFIERS
PRIMARY HOUSEKEEPING SUPPLY INH PIN 8
PWM CONTROL
SECONDARY HOUSEKEEPING SUPPLY
Figure 2
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6
DVETR2800D Series
CONNECTION DIAGRAM
1 28V IN 8 INH 10 OUT COM +V OUT
3 LOAD
28 Vdc
+ -
4 LOAD IN COM
Figure 3
-V OUT
5
INHIBIT DRIVE CONNECTION DIAGRAMS
28V IN 1 10K INH 8 BIAS
OPTOISOLATOR
28V IN 1 10K INH 8 BIAS
OPTIONAL CAPACITOR IN COM 10
12V
OPTIONAL CAPACITOR IN COM 10
12V
Figure 4 - Internal Inhibit Circuit and Recommended Drive (Shown with optional capacitor for turn-on delay)
Figure 5 - Isolated Inhibit Drive (Shown with optional capacitor for turn-on delay)
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DVETR2800D Series
EFFICIENCY PERFORMANCE CURVES (TCASE = 25C, Full Load, Unless Otherwise Specified)
VIN = 16V VIN = 28V VIN = 40V
85
80
80
75
75
Efficiency (%)
Efficiency (%)
70
65
70
60
65
55
60
50 0 5 10 15 20 25 30 Output Power (W)
55 0 10 20 Output Pow er (W) 30 40
Figure 6 - DVETR2805D Efficiency (%) vs. Output Power (W)
Figure 7 - DVETR2812D Efficiency (%) vs. Output Power (W)
85
80
Efficiency (%)
75
70
65
60 0 10 20 Output Power (W) 30 40
Figure 8 - DVETR2815D Efficiency (%) vs. Output Power (W)
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DVETR2800D Series
EMI PERFORMANCE CURVES
(TCASE = 25C, VIN = +28V 5%, Full Load, Unless Otherwise Specified)
Figure 9 - MIL-STD-461C DVETR2800D
Figure 10 - MIL-STD-461D DVETR2800D
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DVETR2800D Series
PACKAGE SPECIFICATIONS (NON-FLANGED, SOLDER SEAL)
TOP VIEW
SIDE VIEW
PIN 1 2 3 4 5 6 7 8 9 10
FUNCTION 28V IN N/C +V OUT OUT COM -V OUT N/C CASE INHIBIT N/C IN COM
BOTTOM VIEW
Figure 11 - Non-Flanged, Solder Seal Tin Plated Package and Pinout (Dimensional Limits are 0.005" Unless Otherwise Stated)
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DVETR2800D Series
PACKAGE SPECIFICATIONS (FLANGED, SOLDER SEAL)
TOP VIEW
SIDE VIEW
PIN 1 2 3 4 5 6 7 8 9 10 BOTTOM VIEW
FUNCTION 28V IN N/C +V OUT OUT COM -V OUT N/C CASE INHIBIT N/C IN COM
Figure 12 - Flanged, Solder Seal Tin Plated Package and Pinout (Dimensional Limits are 0.005" Unless Otherwise Stated)
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11
DVETR2800D Series
PACKAGE PIN DESCRIPTION
Pin
1 2 3 4 5 6 7 8 9 10
Function
28V IN N/C +V OUT OUT COM -V OUT N/C CASE INHIBIT N/C IN COM
Description
Positive Input Voltage Connection No Connection Positive Output Voltage Connection Output Common Connection Negative Output Voltage Connection No Connection Case Connection Logic Low = Disabled Output. Connecting the inhibit pin to input common causes converter shutdown. Logic High = Enabled Output. Unconnected or open collector TTL. No Connection Input Common Connection
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12
DVETR2800D Series
ENVIRONMENTAL SCREENING (100% Tested Per MIL-STD-883 as referenced to MIL-PRF-38534)
Screening NonDestructive Bond Pull Internal Visual Temperature Cycling Constant Acceleration PIND Pre Burn-In Electrical
MIL-STD-883
Standard
(No Suffix)
Extended /ES * *
Method 2023 Method 2017, 2032 Internal Procedure Method 1010, Condition C Method 1010, -55C to 125C Method 2001, 3000g, Y1 Direction Method 2001, 500g, Y1 Direction Method 2020, Condition A2 100% at 25C Method 1015, 320 hours at +125C Method 1015, 160 hours at +125C 96 hours at +125C 24 hours at +125C MIL-PRF-38534, Group A1 100% at 25C Method 1014, Fine Leak, Condition A Method 1014, Gross Leak, Condition C -3 Dip (1 x 10 ) Method 20123 Method 2009
*
*
* *
Burn-In
* *
*
Final Electrical
* * *
Hermeticity
*
Radiography External Visual
*
*
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13
DVETR2800D Series
ORDERING INFORMATION
DVETR 1
28 2
05 3
D 4
F 5
/ES 6
-
XXX 7
(1) Product Series
DVETR
(2) Nominal Input Voltage
28 28 Volts
(3) Output Voltage
05 12 15 5 Volts 12 Volts 15 Volts
(4) Number of Outputs
D Dual
(5) Package Option
None F Non-Flanged Flanged
(6) Screening Code1
None /ES Standard Extended
(7) Additional Screening Code
Contact Sales
Notes:
1.
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.
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14
DVETR2800D 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.
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