DVHF2800D Series
HIGH RELIABILITY HYBRID
DC-DC CONVERTERS
DESCRIPTION
The DVHF 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 DVHF series is a magnetic feedback circuit that is radiation immune. Operating at a nominal fixed frequency of 450 kHz, 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
MIL-PRF-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 20 Watts Output Power ? Radiation Immune 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
? Radiation Hardened Version Available ? Precision Projection Welded Hermetic Package ? High Power Density: > 37 W/in 3 ? 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 – DVHF2800D / DVHF2800DF DC-DC Converter
(Not To Scale )
DVHF2800D Series
SPECIFICATIONS (T CASE = -55°C to +125°C, V IN = +28V ± 5%, Full Load 5, Unless Otherwise Specified)
ABSOLUTE MAXIMUM RATINGS
Input Voltage (Continuous)
50 V DC Junction Temperature Rise to Case +12°C
Input Voltage (Transient, 1 second) 80 Volts Storage Temperature
-65°C to +150°C Output Power 1
20 Watts Lead Solder Temperature (10 seconds) 270°C
Power Dissipation (Full Load, T CASE = +125°C)
6 Watts
Weight (Maximum ) (Un-Flanged / Flanged)
(24 / 28) G rams
DVHF2805D DVHF2812D
Parameter Conditions Min Typ Max Min Typ Max
Units STATIC
Continuous 15 28 50 15 28 50 V INPUT
Voltage
4
Transient, 1 sec - - 80 - - 80 V
Inhibited - - 6 - - 6 mA
Current
No Load
- 40 65 - 40 65 mA
Ripple Current Full Load 5
, 20Hz to 10MHz - - 60 - - 90 mA p-p Inhibit Pin Input
4
0 - 1.5 0 - 1.5 V
Inhibit Pin Open Circuit Voltage 4
9.0 11.0 13.0 9.0 11.0 13.0 V UVLO Turn On 12.0
-
14.8
12.0
-
14.8
V
UVLO Turn Off 4
11.0 - 14.5 11.0 - 14.5 V +V OUT T CASE =
25°C 4.95 5.0 5.05 11.88 12.0 12.12 V +V OUT T CASE = -55°C to +125°C 4.925
5.0
5.075
11.82
12.0
12.18
V
-V OUT T CASE =
25°C
4.80
5.0 5.20 11.80 12.0 12.20 V
OUTPUT
Voltage
5
-V OUT
T CASE = -55°C to +125°C 4.75 5.0 5.25 11.52 12.0 12.48 V Total 0 - 15 0 - 20 W
Power 3,6
±V OUT
Either Output 0 - 10.5 0 - 14 W
Current
3,6
±V OUT Either Output
0 - 2.1 0 - 1.17 A Ripple Voltage ±V OUT Full Load 5
, 20Hz to 10MHz - - 60 - - 50 mV p-p +V OUT V IN = 16V to 40V - - 20 - - 20 mV Line Regulation -V OUT V IN = 16V to 40V -
-
200
-
-
200
mV
+V OUT No Load to Full Load 5 - - 50 - - 50 mV Load Regulation -V OUT No Load to Full Load
5,7
- - 200 - - 200 mV Cross Regulation
-V OUT
+V OUT = 70%, -V OUT = 30% +V OUT = 30%, -V OUT = 70%
- - 500 - - 500 mV
EFFICIENCY Full Load 5
73 - - 78 - - % Overload
4
- - 8 - - 8 W LOAD FAULT POWER DISSIPATION Short Circuit - - 8 - - 8 W
CAPACITIVE LOAD
4
Either Output - - 500 - - 500 μF SWITCHING FREQUENCY
350 450 500 350 450 500 kHz
ISOLATION 500 V DC , T CASE =
25°C 100 - - 100 - - M ?
MTBF (MIL-HDBK-217F) AIF @ T C =
55°C
- 427 - - 427 - kHrs
See notes next page.
DVHF2800D Series
SPECIFICATIONS (T CASE = -55°C to +125°C, V IN = +28V ± 5%, Full Load 5, Unless Otherwise Specified)
ABSOLUTE MAXIMUM RATINGS
Input Voltage (Continuous)
50 V DC Junction Temperature Rise to Case +12°C
Input Voltage (Transient, 1 second) 80 Volts Storage Temperature
-65°C to +150°C Output Power 1
20 Watts Lead Solder Temperature (10 seconds) 270°C
Power Dissipation (Full Load, T CASE = +125°C)
6 Watts
Weight (Maximum ) (Un-Flanged / Flanged)
(24 / 28) G rams
DVHF2805D DVHF2812D
Parameter Conditions Min Typ Max Min Typ Max
Units
DYNAMIC
Load Step Output Transient ±V OUT - - 400 - - 400 mV PK Load Step Recovery 2
Half Load to Full Load - - 500 - - 500 μSec Line Step Output Transient 4
±V OUT - 400 800 - 500 900 mV PK Line Step Recovery 2, 4
V IN = 16V to 40V - 300 700 - 300 500 μSec Turn On Delay ±V OUT
- - 20 - - 20 mSec
Turn On Overshoot
V IN = 0V to 28V
- - 25 - - 50 mV PK
Notes:
1. Dependant on output voltage.
2. Time for output voltage to settle within 1% of its nominal value.
3. Derate linearly to 0 at 135°C.
4. Verified by qualification testing.
5. Half load at +V OUT and half load at –V OUT .
6. Up to 70% of the total power or current can be drawn from any one of the two outputs.
7. 5% Load to Full Load at -55°C.
DVHF2800D Series
SPECIFICATIONS (T CASE = -55°C to +125°C, V IN = +28V ± 5%, Full Load 5, Unless Otherwise Specified)
ABSOLUTE MAXIMUM RATINGS
Input Voltage (Continuous)
50 V DC Junction Temperature Rise to Case +12°C
Input Voltage (Transient, 1 second) 80 Volts Storage Temperature
-65°C to +150°C Output Power 1
20 Watts Lead Solder Temperature (10 seconds) 270°C
Power Dissipation (Full Load, T CASE = +125°C)
6 Watts
Weight (Maximum ) (Un-Flanged / Flanged)
(24 / 28) G rams
DVHF2815D
Parameter Conditions Min Typ Max
Units
STATIC
Continuous 15 28 50 V INPUT
Voltage
4
Transient, 1 sec - - 80 V Inhibited - - 6 mA
Current
No Load
- 40 65 mA Ripple Current Full Load 5
, 20Hz to 10MHz
-
-
90
mA p-p
Inhibit Pin Input
4
0 - 1.5 V Inhibit Pin Open Circuit Voltage 4
9.0 11.0 13.0 V UVLO Turn On
12.0 - 14.8 V UVLO Turn Off 4
11.0 - 14.5 V
+V OUT T CASE = 25°C
14.85 15.0 15.15 V +V OUT T CASE = -55°C to +125°C 14.775 15.0 15.225 V -V OUT T CASE = 25°C
14.80 15.0 15.20 V OUTPUT
Voltage
5
-V OUT
T CASE = -55°C to +125°C 14.40 15.0 15.60 V Total -
-
20
W
Power 3,6
±V OUT
Either Output - - 14 W Current
3,6
±V OUT Either Output
- - 0.93 A Ripple Voltage ±V OUT Full Load 5
, 20Hz to 10MHz - - 60 mV p-p +V OUT V IN = 16V to 40V - - 20 mV Line Regulation -V OUT V IN = 16V to 40V -
-
200
mV
+V OUT No Load to Full Load 5 - - 50 mV Load Regulation -V OUT No Load to Full Load
5,7
- - 200 mV Cross Regulation
-V OUT
+V OUT = 70%, -V OUT = 30% +V OUT = 30%, -V OUT = 70%
- - 500 mV
EFFICIENCY Full Load 5
79 - - % Overload
4
- - 8 W LOAD FAULT POWER DISSIPATION Short Circuit -
- 8 W
CAPACITIVE LOAD
4
Either Output
- - 500 μF SWITCHING FREQUENCY
350 450 500 kHz
ISOLATION 500 V DC , T CASE = 25°C 100
- - M ? MTBF (MIL-HDBK-217F) AIF @ T C = 55°C
-
427
-
kHrs
See notes next page.
DVHF2800D Series
SPECIFICATIONS (T CASE = -55°C to +125°C, V IN = +28V ± 5%, Full Load 5, Unless Otherwise Specified)
ABSOLUTE MAXIMUM RATINGS
Input Voltage (Continuous)
50 V DC Junction Temperature Rise to Case +12°C
Input Voltage (Transient, 1 second) 80 Volts Storage Temperature
-65°C to +150°C Output Power 1
20 Watts Lead Solder Temperature (10 seconds) 270°C
Power Dissipation (Full Load, T CASE = +125°C)
6 Watts
Weight (Maximum ) (Un-Flanged / Flanged)
(24 / 28) G rams
DVHF2815D
Parameter Conditions Min Typ Max
Units
DYNAMIC
Load Step Output Transient ±V OUT - - 400 mV PK Load Step Recovery 2
Half Load to Full Load - - 500 μSec Line Step Output Transient 4
±V OUT - 500 900 mV PK Line Step Recovery 2, 4
V IN = 16V to 40V - 300 500 μSec
Turn On Delay ±V OUT
- - 20 mSec Turn On Overshoot
V IN = 0V to 28V
- - 50 mV PK
Notes:
1. Dependant on output voltage.
2. Time for output voltage to settle within 1% of its nominal value.
3. Derate linearly to 0 at 135°C.
4. Verified by qualification testing.
5. Half load at +V OUT and half load at –V OUT .
6. Up to 70% of the total power or current can be drawn from any one of the two outputs.
7. 5% Load to Full Load at -55°C.
DVHF2800D Series
BLOCK DIAGRAM
UNDER VOLTAGE SHUTDOWN
PRIMARY HOUSEKEEPING
SUPPLY
PWM CONTROL
VOLTAGE AND CURRENT AMPLIFIERS
SECONDARY HOUSEKEEPING
SUPPLY
PIN 7
IN COM
L1
C1
Q1
Rs1
T1
D1C2
Rs2
INH
PIN 1
FEEDBACK
MAGNETIC D2
Rs3
C3
PIN 8
28V IN
PIN 3
OUT COM
PIN 4
-V OUT
PIN 2
+V OUT
Figure 2
CONNECTION DIAGRAM
7
IN COM
1
INH
8
28V IN
2
+V OUT
3
OUT COM LOAD
+-
28 Vdc
4
-V OUT LOAD
Figure 3
DVHF2800D Series
INHIBIT DRIVE CONNECTION DIAGRAMS
7
IN COM 1
INH
8
28V IN OPTIONAL CAPACITOR BIAS
12V
10K
7
IN COM 1
INH
8
28V IN OPTIONAL CAPACITOR BIAS
12V
10K
OPTOISOLATOR
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)
EMI FILTER HOOKUP DIAGRAM
7
IN COM
1
INH
8
28V IN
2
+V OUT
3OUT COM
LOAD
+-
28 Vdc
2
28V OUT
4
OUT COM
1
28V IN
5
IN COM 3
DVMH28 EMI FILTER
6
DVHF2800D DC-DC CONVERTER CASE
4
-V OUT LOAD
Figure 6 – Converter with EMI Filter
DVHF2800D Series
EFFICIENCY PERFORMANCE CURVES (T CASE = 25°C, Full Load, Unless Otherwise Specified)
V IN = 16V
V IN = 28V
V IN = 40V
50
5560657075800
5
10
15
Output Pow er (W)
E f f i c i e n c y (%)
55
6065707580850510
1520
Output P ow er (W)
E f f i c i e n c y (%)
Figure 7 – DVHF2805D Figure 8 – DVHF2812D Efficiency (%) vs. Output Power (W)
Efficiency (%) vs. Output Power (W)
60
6570758085900
5
10
15
20
Output P ow er (W)
E f f i c i e n c y (%)
Figure 9 – DVHF2815D Efficiency (%) vs. Output Power (W)
DVHF2800D Series EMI PERFORMANCE CURVES
(T CASE = 25°C, V IN = +28V ± 5%, Full Load, Unless Otherwise Specified)
Figure 10 – DVHF2800D without EMI Filter
Figure 11 – DVHF2800D with EMI Filter
DVHF2800D Series PACKAGE SPECIFICATIONS (NON-FLANGED)
TOP VIEW SIDE VIEW
PIN FUNCTION
1 INHIBIT
2 +V
OUT
COM
3 OUT
4 -V
OUT
5 N/C
6 CASE
COM
7 IN
IN
8 28V
BOTTOM VIEW
Figure 12 – Non-Flanged Package and Pinout
(Dimensional Limits are ±0.005” Unless Otherwise Stated)
DVHF2800D Series PACKAGE SPECIFICATIONS (FLANGED)
TOP VIEW SIDE VIEW
PIN FUNCTION
1 INHIBIT
2 +V
OUT
COM
3 OUT
4 -V
OUT
5 N/C
6 CASE
COM
7 IN
IN
8 28V
BOTTOM VIEW
Figure 13 – Flanged Package and Pinout
(Dimensional Limits are ±0.005” Unless Otherwise Stated)
DVHF2800D Series PACKAGE PIN DESCRIPTION
Pin Function Description
1 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.
2 +V
OUT Positive Output Voltage Connection
3 OUT COM Output Common Connection
4 -V
OUT Negative Output Voltage Connection 5 N/C No
Connection
6 CASE Case
Connection
7 IN COM Input Common Connection
8 28V IN Positive Input Voltage Connection
DVHF2800D Series
ENVIRONMENTAL SCREENING (100% Tested Per MIL-STD-883 as referenced to MIL-PRF-38534)
Notes:
1. 100% R&R testing at –55°C, +25°C, and +125°C with all test data included in product shipment.
2. PIND test Certificate of Compliance included in product shipment.
3. Radiographic test Certificate of Compliance and film(s) included in product shipment.
Screening MIL-STD-883
Standard
(No Suffix)
Extended /ES HB /HB
Class H
/H
Class K /K
Non-Destructive 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 A 2
?
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 A 1 100% at 25°C
? ? ? ? ? Hermeticity
Method 1014, Fine Leak, Condition A Method 1014, Gross Leak, Condition C
Dip (1 x 10-3
)
? ? ? ? ? ? ? ? ? Radiography Method 20123 ? External Visual
Method 2009
?
?
?
?
?
DVHF2800D Series ORDERING INFORMATION
DVHF 28 05 D F R /HB - XXX
1 2 3 4 5 6 7 8
(1) (2) (3) (4)
Product Series Nominal Input
Voltage
Output Voltage Number of Outputs
DVHF 28 28 Volts 05
12
15
± 5 Volts
± 12 Volts
± 15 Volts
D Dual
(5) (6) (7) (8)
Package Option Rad-Hard Option2Screening Code1,3 Additional Screening
Code
None F
Non-
Flanged
Flanged
None
R
Standard
100 kRad
None
/ES
/HB
/H
/K
Standard
Extended
HB
Class H
Class K
Contact Sales
Notes: 1. Contact the VPT Inc. Sales Department for availability of Class H (/H) or Class K (/K) qualified products.
2. VPT Inc. is not currently qualified to a DSCC certified radiation hardness assurance program.
3. 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.
DVHF2800D Series SMD (STANDARD MICROCIRCUIT DRAWING) NUMBERS
Standard Microcircuit Drawing (SMD)
DVHF2800D Series Similar Part Number
5962-0324401HXC 5962-0324401HYC
DVHF2805D/H DVHF2805DF/H
5962-0324402HXC 5962-0324402HYC
DVHF2812D/H DVHF2812DF/H
5962-0324403HXC 5962-0324403HYC
DVHF2815D/H DVHF2815DF/H
Do not use the DVHF2800D 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 https://www.wendangku.net/doc/9616815264.html,/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: (425)
353-3010
Fax: (425) 353-4030
E-mail: vptsales@https://www.wendangku.net/doc/9616815264.html,
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.