DVHF+2800T 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 are robust and effective input and
output filters which provide dramatically reduced
input and output noise performance when compared
to other manufacturers competing devices.
Operating at a nominal fixed frequency of 325 kHz,
per stage, these regulated, isolated units utilize a
high speed magnetic feedback design and 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 15 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 Projection Welded Hermetic Package
High Power Density: > 37 W/in
3
Custom Versions Available
Additional Environmental Screening Available
Meets MIL-STD-461 Revisions C, D, E and F
EMC Requirements When Used With VPT’s
EMI Filters
Flanged and Non-flanged Versions Available.
MIL-PRF-38534 Element Evaluated
Components
Figure 1
– DVHF+2800T / DVHF+2800TF DC-DC Converter
(Exact
marking may differ from that shown)
Sales Information:
Phone: (425) 353-3010
Fax: (425) 353-4030
E-mail: vptsales@vpt-inc.com
DVHF+2800T-4.0
http://www.vpt-inc.com
1
DVHF+2800T 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)
Input Voltage (Transient, 1 second)
Output Power
Power Dissipation (Full Load, T
CASE
= +125°C)
ESD Rating per MIL-PRF-38534
Parameter
50 V
DC
80 Volts
15 Watts
6.5 Watts
3A
Junction Temperature Rise to Case
Storage Temperature
Lead Solder Temperature (10 seconds)
Weight (Maximum) (Un-Flanged / Flanged)
+15°C
-65°C to +150°C
270°C
(26 / 29) Grams
Conditions
DVHF+28512T
Min
15
Typ
28
-
2
25
25
-
15
-
-
5.0
12.0
-12.0
5.0
12.0
-12.0
-
-
-
-
-
10
20
2
5
15
10
15
150
79
-
-
-
650
750
-
350
Max
50
80
5.0
60
50
1.5
17
14.5
13.5
5.05
12.12
-11.76
5.15
12.36
-11.52
15
7.5
7.5
1.5
0.44
50
80
20
50
50
50
200
450
-
7.5
7.5
500
700
800
-
-
Min
15
-
-
-
-
0
12
10.5
8.5
4.95
14.85
-15.30
4.85
14.55
-15.60
0
0
0
0
0
-
-
-
-
-
-
-
-
74
-
-
-
550
700
100
-
DVHF+28515T
Typ
28
-
2
25
25
-
15
-
-
5.0
15.0
-15.0
5.0
15.0
-15.0
-
-
-
-
-
10
20
2
5
15
10
15
150
79
-
-
-
650
750
-
350
Max
50
80
5.0
60
50
1.5
17
14.5
13.5
5.05
15.15
-14.70
5.15
15.45
-14.40
15
7.5
7.5
1.5
0.35
50
80
20
50
50
50
200
450
-
7.5
7.5
500
700
800
-
-
Units
STATIC
INPUT
Voltage
Current
Ripple Current
Inhibit Pin Input
UVLO Turn On
UVLO Turn Off
4
4
4
Continuous
Transient, 1 sec
Inhibited
No Load
Full Load , 20Hz to 10MHz
5
4
V
V
mA
mA
mA
p-p
V
V
V
V
V
V
V
V
V
V
W
W
W
A
A
mV
p-p
mV
p-p
mV
mV
mV
mV
mV
mV
%
W
W
F
kHz
kHz
MΩ
kHrs
-
-
-
-
0
12
10.5
8.5
Inhibit Pin Open Circuit Voltage
V
MAIN
+V
AUX
OUTPUT
Voltage
-V
AUX
V
MAIN
+V
AUX
-V
AUX
Total
Power
4
4.95
T
CASE
= 25°C
11.88
-12.24
4.85
T
CASE
= -55°C to +125°C
11.64
-12.48
0
0
0
0
Either Output
5
6
V
MAIN
±V
AUX
6
Current
3
V
MAIN
±V
AUX
V
MAIN
±V
AUX
V
MAIN
±V
AUX
V
MAIN
+V
AUX
-V
AUX
0
-
-
-
-
-
5,8
Ripple Voltage
Line Regulation
Full Load , 20Hz to 10MHz
V
IN
= 15V to 50V
Load Regulation
No Load to Full Load
-
-
Cross Regulation
EFFICIENCY
±V
AUX
+V
OUT
= 30%, -V
OUT
= 70%
+V
OUT
= 70%, -V
OUT
= 30%
Full Load
Overload
5
4
-
74
-
-
-
550
LOAD FAULT POWER DISSIPATION
CAPACITIVE LOAD
4
Short Circuit
SWITCHING FREQUENCY
SYNCHRONIZATION FREQUENCY
ISOLATION
MTBF (MIL-HDBK-217F)
7
700
500 V
DC
, T
CASE
= 25°C
AIF @ T
C
= 55°C
100
-
DVHF+2800T-4.0
2
DVHF+2800T 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)
Input Voltage (Transient, 1 second)
Output Power
Power Dissipation (Full Load, T
CASE
= +125°C)
ESD Rating per MIL-PRF-38534
50 V
DC
80 Volts
15 Watts
6.5 Watts
3A
Junction Temperature Rise to Case
Storage Temperature
Lead Solder Temperature (10 seconds)
Weight (Maximum) (Un-Flanged / Flanged)
+15°C
-65°C to +150°C
270°C
(26 / 29) Grams
Parameter
Conditions
DVHF+28512T
Min
Typ
Max
Min
DVHF+28515T
Typ
Max
Units
DYNAMIC
Load Step Output Transient
Load Step Recovery
2
V
MAIN
±V
AUX
V
MAIN
±V
AUX
V
MAIN
±V
AUX
V
MAIN
±V
AUX
V
MAIN
±V
AUX
V
IN
= 0V to 28V
V
IN
= 15V to 50V
Half Load to Full Load
-
-
-
-
-
-
-
-
-
-
-
130
220
400
200
50
300
100
250
10
0
0
400
500
650
350
150
500
200
500
17
25
50
-
-
-
-
-
-
-
-
-
-
-
130
210
400
150
50
300
100
250
10
0
0
400
500
650
350
150
500
200
500
17
25
50
mV
PK
mV
PK
Sec
Sec
mV
PK
mV
PK
Sec
Sec
mSec
mV
PK
mV
PK
Line Step Output Transient
Line Step Recovery
Turn On Delay
Turn On Overshoot
2, 4
4
Notes:
1.
2.
3.
4.
5.
6.
7.
8.
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.
7.5W on V
MAIN
and 7.5W on ±V
AUX
.
Up to 70% of the total auxiliary power or current can be drawn from either of the auxiliary outputs.
Synchronization is TTL signal with V
SYNC MAX
= 6V.
-V
AUX
is 5% Load to Full Load at -55°C.
DVHF+2800T-4.0
3
DVHF+2800T 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)
Input Voltage (Transient, 1 second)
Output Power
Power Dissipation (Full Load, T
CASE
= +125°C)
ESD Rating per MIL-PRF-38534
Parameter
50 V
DC
80 Volts
15 Watts
6.5 Watts
3A
Junction Temperature Rise to Case
Storage Temperature
Lead Solder Temperature (10 seconds)
Weight (Maximum) (Un-Flanged / Flanged)
+15°C
-65°C to +150°C
270°C
(26 / 29) Grams
Conditions
DVHF+285R715T
Min
15
Typ
28
-
2
25
25
-
15
-
-
5.7
15.0
-15.0
5.7
15.0
-15.0
-
-
-
-
-
10
20
2
5
15
10
15
150
79
-
-
-
650
750
-
350
Max
50
80
5.0
60
50
1.5
17
14.5
13.5
5.757
15.15
-14.70
5.871
15.45
-14.40
15
7.5
7.5
1.32
0.35
50
80
20
50
50
50
200
450
-
7.5
7.5
500
700
800
-
-
Units
STATIC
INPUT
Voltage
Current
Ripple Current
Inhibit Pin Input
UVLO Turn On
UVLO Turn Off
4
4
4
Continuous
Transient, 1 sec
Inhibited
No Load
Full Load , 20Hz to 10MHz
5
4
V
V
mA
mA
mA
p-p
V
V
V
V
V
V
V
V
V
V
W
W
W
A
A
mV
p-p
mV
p-p
mV
mV
mV
mV
mV
mV
%
W
W
F
kHz
kHz
MΩ
kHrs
-
-
-
-
0
12
10.5
8.5
Inhibit Pin Open Circuit Voltage
V
MAIN
+V
AUX
OUTPUT
Voltage
-V
AUX
V
MAIN
+V
AUX
-V
AUX
Total
Power
4
5.643
T
CASE
= 25°C
14.85
-15.30
5.529
T
CASE
= -55°C to +125°C
14.55
-15.60
0
0
0
0
Either Output
5
6
V
MAIN
±V
AUX
6
Current
3
V
MAIN
±V
AUX
V
MAIN
±V
AUX
V
MAIN
±V
AUX
V
MAIN
+V
AUX
-V
AUX
0
-
-
-
-
-
5,8
Ripple Voltage
Line Regulation
Full Load , 20Hz to 10MHz
V
IN
= 15V to 50V
Load Regulation
No Load to Full Load
-
-
Cross Regulation
EFFICIENCY
±V
AUX
+V
OUT
= 30%, -V
OUT
= 70%
+V
OUT
= 70%, -V
OUT
= 30%
Full Load
Overload
5
4
-
74
-
-
-
550
LOAD FAULT POWER DISSIPATION
CAPACITIVE LOAD
4
Short Circuit
SWITCHING FREQUENCY
SYNCHRONIZATION FREQUENCY
ISOLATION
MTBF (MIL-HDBK-217F)
7
700
500 V
DC
, T
CASE
= 25°C
AIF @ T
C
= 55°C
100
-
DVHF+2800T-4.0
4
DVHF+2800T 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)
Input Voltage (Transient, 1 second)
Output Power
Power Dissipation (Full Load, T
CASE
= +125°C)
ESD Rating per MIL-PRF-38534
50 V
DC
80 Volts
15 Watts
6.5 Watts
3A
Junction Temperature Rise to Case
Storage Temperature
Lead Solder Temperature (10 seconds)
Weight (Maximum) (Un-Flanged / Flanged)
+15°C
-65°C to +150°C
270°C
(26 / 29) Grams
Parameter
Conditions
DVHF+285R715T
Min
Typ
Max
Units
DYNAMIC
Load Step Output Transient
Load Step Recovery
2
V
MAIN
±V
AUX
V
MAIN
±V
AUX
V
MAIN
±V
AUX
V
MAIN
±V
AUX
V
MAIN
±V
AUX
V
IN
= 0V to 28V
V
IN
= 15V to 50V
Half Load to Full Load
-
-
-
-
-
-
-
-
-
-
-
130
210
400
150
50
300
100
250
10
0
0
400
500
650
350
150
500
200
500
17
25
50
mV
PK
mV
PK
Sec
Sec
mV
PK
mV
PK
Sec
Sec
mSec
mV
PK
mV
PK
Line Step Output Transient
Line Step Recovery
Turn On Delay
Turn On Overshoot
2, 4
4
Notes:
1.
2.
3.
4.
5.
6.
7.
8.
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.
7.5W on V
MAIN
and 7.5W on ±V
AUX
.
Up to 70% of the total auxiliary power or current can be drawn from either of the auxiliary outputs.
Synchronization is TTL signal with V
SYNC MAX
= 6V.
-V
AUX
is 5% Load to Full Load at -55°C.
DVHF+2800T-4.0
5
MicroPython开源版块
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
