
DVHF+2800T Series
S PECIFICAT IONS  
(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
Input Voltage (Transient, 1 second) 
80 Volts 
Output Power 
15 Watts 
Power Dissipation (Full Load, T
CASE
 = +125°C) 
6.5 Watts 
1X006DSJ 
2
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 
DVHF+28512T 
DVHF+28515T 
Parameter 
Conditions 
Min 
Typ 
Max 
Min 
Typ 
Max 
Units 
STATIC 
Continuous 
Transient, 1 sec
4 
15 
28 
50 
15 
28 
50 
V 
INPUT 
Voltage
- 
- 
80 
- 
- 
80 
V 
Inhibited 
- 
3.5 
5.0 
- 
3.5 
5.0 
mA 
Current
No Load 
Full Load
5
, 20Hz to 10MHz 
- 
- 
50 
- 
- 
50 
mA 
Ripple Current 
Inhibit Pin Input
4 
Inhibit Pin Open Circuit Voltage
4 
- 
40 
50 
- 
40 
50 
mA
p-p 
V 
0 
- 
1.5 
0 
- 
1.5 
13 
15 
17 
13 
15 
17 
V 
UVLO Turn On 
UVLO Turn Off
4 
10.5 
- 
14.5 
10.5 
- 
14.5 
V 
9 
- 
13 
9 
- 
13 
V 
V
MAIN 
+V
AUX 
-V
AUX 
V
MAIN 
+V
AUX 
-V
AUX 
4.95 
5.0 
5.05 
4.95 
5.0 
5.05 
V 
11.88 
12.0 
12.12 
14.85 
15.0 
15.15 
V 
T
CASE
 = 25°C 
-12.24 
-12.0 
-11.76 
-15.30 
-15.0 
-14.70 
V 
4.85 
5.0 
5.15 
4.85 
5.0 
5.15 
V 
11.64 
12.0 
12.36 
14.55 
15.0 
15.45 
V 
OUTPUT 
Voltage 
T
CASE
 = -55°C to +125°C 
-12.48 
-12.0 
-11.52 
-15.60 
-15.0 
-14.40 
V 
   Total 
0 
- 
15 
0 
- 
15 
W 
V
MAIN 
 ±V
AUX
0 
- 
7.5 
0 
- 
7.5 
W 
Power
4
6 
0 
- 
7.5 
0 
- 
7.5 
W 
V
MAIN 
  ±V
AUX 
Either Output
6 
0 
- 
1.5 
0 
- 
1.5 
A 
Current
3 
0 
- 
0.44 
0 
- 
0.35 
A 
V
MAIN 
  ±V
AUX 
- 
40 
50 
- 
40 
50 
mV
p-p 
mV
p-p 
Ripple Voltage 
Full Load
5
, 20Hz to 10MHz 
- 
60 
80 
- 
60 
80 
V
MAIN 
  ±V
AUX 
- 
10 
20 
- 
10 
20 
mV 
Line Regulation 
V
IN
 = 15V to 50V 
- 
15 
50 
- 
15 
50 
mV 
V
MAIN 
  +V
AUX 
   -V
AUX 
- 
5 
50 
- 
5 
50 
mV 
- 
10 
50 
- 
10 
50 
mV 
Load Regulation 
No Load to Full Load
5,8 
- 
20 
200 
- 
20 
200 
mV 
Cross Regulation
  ±V
AUX 
+V
OUT
 = 30%, -V
OUT
 = 70% 
+V
OUT
 = 70%, -V
OUT
 = 30% 
Full Load
5 
Overload
4 
- 
- 
450 
- 
- 
450 
mV 
EFFICIENCY 
74 
77 
- 
74 
77 
- 
% 
- 
- 
7.5 
- 
- 
7.5 
W 
LOAD FAULT POWER DISSIPATION 
Short Circuit 
- 
- 
7.5 
- 
- 
7.5 
W 
μ
F 
kHz 
CAPACITIVE LOAD
4 
- 
- 
500 
- 
- 
500 
SWITCHING FREQUENCY 
SYNCHRONIZATION FREQUENCY
7 
550 
650 
700 
550 
650 
700 
700 
750 
800 
700 
750 
800 
kHz 
ISOLATION 
500 V
DC
, T
CASE
 = 25°C 
AIF @ T
C
 = 55°C 
100 
- 
- 
100 
- 
- 
M
MTBF (MIL-HDBK-217F) 
- 
350 
- 
- 
350 
- 
kHrs