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DVTR2800S
User Manual
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DELTA DVTR2800S User Manual

DVTR2800S Series
HIGH RELIABILITY HYBRID
DESCRIPTION
The DVTR 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 DVTR series is a magnetic feedback circuit that is radiation immune. Operating at a nominal fixed frequency of 475 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 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
DC-DC CONVERTERS
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
• Output Voltage Trim Up +10%
• 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 Seam Seal or Solder Seal Hermetic
Package
• High Power Density: > 40 W/in
• Custom Versions Available
• Additional Environmental Screening Available
• Meets MIL-STD-461C and MIL-STD-461D EMC
Requirements When Used With a DVMC28 EMI Filter
• Flanged and Non-flanged Versions Available.
• MIL-PRF-38534 Element Evaluated
Components
3
1X007DSG
11314 4th Avenue West, Suite 206 Everett, WA 98204
http://www.vpt-inc.com
Figure 1 – DVTR2800S / DVTR2800SF DC-DC Converter
(Not To Scale)
Sales Information: Phone: (425) 353-3010 Fax: (425) 353-4030 E-mail: vptsales@vpt-inc.com
1
DVTR2800S Series
SPECIFICATIONS (T
= -55°C to +125°C, VIN = +28V ± 5%, Full Load, Unless Otherwise Specified)
CASE
ABSOLUTE MAXIMUM RATINGS
Input Voltage (Continuous) 50 VDC Junction Temperature Rise to Case +15°C Input Voltage (Transient, 1 second) 80 Volts Storage Temperature -65°C to +150°C
Output Power1 40 Watts Lead Solder Temperature (10 seconds) 270°C
Power Dissipation (Full Load, T
= +125°C) 13 Watts Weight (Maximum) (Un-Flanged / Flanged) (49 / 52) Grams
CASE
Parameter Conditions
STATIC
INPUT
Voltage
Current
4
Ripple Current Full Load, 20Hz to 10MHz - - 50 - - 50 mA
Inhibit Pin Input
4
Inhibit Pin Open Circuit Voltage
UVLO Turn On 12.0 - 14.8 12.0 - 14.8 V
UVLO Turn Off
4
OUTPUT
Voltage
3
Power
3
Current
Ripple Voltage V
Line Regulation V
Load Regulation V
EFFICIENCY 67 - - 72 - - %
LOAD FAULT POWER DISSIPATION
CAPACITIVE LOAD
4
SWITCHING FREQUENCY 400 475 550 400 475 550 kHz
SYNC FREQUENCY RANGE VH - VL = 5V, DC = 20-80% 500 - 600 500 - 600 kHz
ISOLATION 500 V
MTBF (MIL-HDBK-217F) AIF @ TC = 55°C - 413 - - 413 - kHrs
Continuous 15 28 50 15 28 50 V
Transient, 1 sec - - 80 - - 80 V
Inhibited - - 6 - - 6 mA
No Load - - 90 - - 90 mA
0 - 1.5 0 - 1.5 V
4
9.0 11.0 13.0 9.0 11.0 13.0 V
11.0 - 14.5 11.0 - 14.5 V
V
OUT TCASE
V
OUT TCASE
= 25°C 3.25 3.30 3.35 4.95 5.00 5.05 V
= -55°C to +125°C 3.20 3.30 3.40 4.875 5.00 5.125 V
0 - 20 0 - 30 W
V
0 - 6.06 0 - 6.0 A
OUT
Full Load, 20Hz to 10MHz - - 50 - - 50 mV
OUT
OUT VIN
OUT
= 15V to 50V - - 20 - - 20 mV
No Load to Full Load - - 50 - - 50 mV
Overload
4
Short Circuit - - 16 - - 16 W
- - 1000 - - 1000
DC
DYNAMIC
Load Step Output Transient V
Load Step Recovery2
Line Step Output Transient
Line Step Recovery
2, 4
4
Turn On Delay V
Turn On Overshoot
OUT
Half Load to Full Load
V
OUT
OUT
= 16V to 40V
V
IN
= 0V to 28V
V
IN
DVTR283R3S DVTR2805S
Units
Min Typ Max Min Typ Max
p-p
p-p
- - 16 - - 16 W
µF
100 - - 100 - - MΩ
- - 400 - - 500 mV
- - 500 - - 500
- 300 600 - 300 600 mV
- 300 500 - 300 500
- - 20 - - 20 mSec
- - 15 - - 25 mV
PK
µSec
PK
µSec
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.
1X007DSG
2
DVTR2800S Series
SPECIFICATIONS (T
= -55°C to +125°C, VIN = +28V ± 5%, Full Load, Unless Otherwise Specified)
CASE
ABSOLUTE MAXIMUM RATINGS
Input Voltage (Continuous) 50 VDC Junction Temperature Rise to Case +15°C Input Voltage (Transient, 1 second) 80 Volts Storage Temperature -65°C to +150°C
Output Power1 40 Watts Lead Solder Temperature (10 seconds) 270°C
Power Dissipation (Full Load, T
= +125°C) 13 Watts Weight (Maximum) (Un-Flanged / Flanged) (49 / 52) Grams
CASE
Parameter Conditions
STATIC
INPUT
Voltage
Current
4
Ripple Current Full Load, 20Hz to 10MHz - - 50 - - 50 mA
Inhibit Pin Input
4
Inhibit Pin Open Circuit Voltage
UVLO Turn On 12.0 - 14.8 12.0 - 14.8 V
UVLO Turn Off
4
OUTPUT
Voltage
3
Power
3
Current
Ripple Voltage V
Line Regulation V
Load Regulation V
EFFICIENCY 76 - - 77 - - %
LOAD FAULT POWER DISSIPATION
CAPACITIVE LOAD
4
SWITCHING FREQUENCY 400 475 550 400 475 550 kHz
SYNC FREQUENCY RANGE VH - VL = 5V, DC = 20-80% 500 - 600 500 - 600 kHz
ISOLATION 500 V
MTBF (MIL-HDBK-217F) AIF @ TC = 55°C - 413 - - 413 - kHrs
Continuous 15 28 50 15 28 50 V
Transient, 1 sec - - 80 - - 80 V
Inhibited - - 6 - - 6 mA
No Load - - 90 - - 90 mA
0 - 1.5 0 - 1.5 V
4
9.0 11.0 13.0 9.0 11.0 13.0 V
11.0 - 14.5 11.0 - 14.5 V
V
OUT TCASE
V
OUT TCASE
= 25°C 11.88 12.0 12.12 14.85 15.0 15.15 V
= -55°C to +125°C 11.70 12.0 12.30 14.625 15.0 15.375 V
0 - 40 0 - 40 W
V
0 - 3.33 0 - 2.67 A
OUT
Full Load, 20Hz to 10MHz - - 50 - - 50 mV
OUT
OUT VIN
OUT
= 15V to 50V - - 20 - - 20 mV
No Load to Full Load - - 50 - - 50 mV
Overload
4
Short Circuit - - 14 - - 14 W
- - 500 - - 500
DC
DYNAMIC
Load Step Output Transient V
Load Step Recovery2
Line Step Output Transient
Line Step Recovery
2, 4
4
Turn On Delay V
Turn On Overshoot
OUT
Half Load to Full Load
V
OUT
OUT
= 16V to 40V
V
IN
= 0V to 28V
V
IN
DVTR2812S DVTR2815S
Units
Min Typ Max Min Typ Max
p-p
p-p
- - 14 - - 14 W
µF
100 - - 100 - - MΩ
- - 700 - - 700 mV
- - 500 - - 500
- 500 900 - 500 900 mV
- 300 500 - 300 500
- - 20 - - 20 mSec
- - 50 - - 50 mV
PK
µSec
PK
µSec
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.
1X007DSG
3
DVTR2800S Series
SPECIFICATIONS (T
= -55°C to +125°C, VIN = +28V ± 5%, Full Load, Unless Otherwise Specified)
CASE
ABSOLUTE MAXIMUM RATINGS
Input Voltage (Continuous) 50 VDC Junction Temperature Rise to Case +15°C Input Voltage (Transient, 1 second) 80 Volts Storage Temperature -65°C to +150°C
Output Power1 40 Watts Lead Solder Temperature (10 seconds) 270°C
Power Dissipation (Full Load, T
= +125°C) 13 Watts Weight (Maximum) (Un-Flanged / Flanged) (49 / 52) Grams
CASE
Parameter Conditions
STATIC
INPUT
Voltage
Current
4
Ripple Current Full Load, 20Hz to 10MHz - - 50 - - 50 mA
Inhibit Pin Input
4
Inhibit Pin Open Circuit Voltage
UVLO Turn On 12.0 - 14.8 12.0 - 14.8 V
UVLO Turn Off
4
OUTPUT
Voltage
3
Power
3
Current
Ripple Voltage V
Line Regulation V
Load Regulation V
EFFICIENCY 72 - - 63 - - %
LOAD FAULT POWER DISSIPATION
CAPACITIVE LOAD
4
SWITCHING FREQUENCY 400 475 550 400 475 550 kHz
SYNC FREQUENCY RANGE VH - VL = 5V, DC = 20-80% 500 - 600 500 - 600 kHz
ISOLATION 500 V
MTBF (MIL-HDBK-217F) AIF @ TC = 55°C - 413 - - 413 - kHrs
Continuous 15 28 50 15 28 50 V
Transient, 1 sec - - 80 - - 80 V
Inhibited - - 6 - - 6 mA
No Load - - 90 - - 90 mA
0 - 1.5 0 - 1.5 V
4
9.0 11.0 13.0 9.0 11.0 13.0 V
11.0 - 14.5 11.0 - 14.5 V
V
OUT TCASE
V
OUT TCASE
= 25°C 5.14 5.20 5.26 2.47 2.50 2.53 V
= -55°C to +125°C 5.07 5.20 5.33 2.46 2.50 2.54 V
0 - 30 0 - 15 W
V
0 - 6.0 0 - 6.0 A
OUT
Full Load, 20Hz to 10MHz - - 50 - - 50 mV
OUT
OUT VIN
OUT
= 15V to 50V - - 20 - - 20 mV
No Load to Full Load - - 50 - - 50 mV
Overload
4
Short Circuit - - 16 - - 18 W
- - 1000 - - 1000
DC
DYNAMIC
Load Step Output Transient V
Load Step Recovery2
Line Step Output Transient
Line Step Recovery
2, 4
4
Turn On Delay V
Turn On Overshoot
OUT
Half Load to Full Load
V
OUT
OUT
= 16V to 40V
V
IN
= 0V to 28V
V
IN
DVTR285R2S DVTR282R5S
Units
Min Typ Max Min Typ Max
p-p
p-p
- - 16 - - 18 W
µF
100 - - 100 - - MΩ
- - 500 - - 400 mV
- - 500 - - 500
- 300 600 - 250 450 mV
- 300 500 - 300 450
- - 20 - - 20 mSec
- - 25 - - 15 mV
PK
µSec
PK
µSec
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.
1X007DSG
4
SHUTDO
SU
Y
S
SU
Y
BLOCK DIAGRAM
DVTR2800S Series
PIN 1
28V IN
L1
IN COM
PIN 10
UNDER
VOLTAGE
WN
PRIMARY
HOUSEKEEPING
PPL
INH
PIN 2
SYNC
PIN 9
CONNECTION DIAGRAM
C1
PWM
CONTROL
Q1
Rs1
Figure 2
T1
MAGNETIC FEEDBACK
D1
C2
VOLTAGE AND
AMPLIFIER
SECONDARY
HOUSEKEEPING
Rs2
CURRENT
PPL
PIN 5
+V OUT
OUT COM
PIN 4
-S
PIN 3
+S
PIN 6
1X007DSG
28 Vdc
1
28V IN
+V OUT
9
SYNC
+
-
2
INH
+S
5
6
LOAD
3
-S
10
IN COM
Figure 3
OUT COM
4
5
INHIBIT DRIVE CONNECTION DIAGRAMS
DVTR2800S Series
128V IN
2INH
OPTIONAL CAPACITOR
10IN COM
10K
12V
BIAS
OPTOISOLATOR
OPTIONAL CAPACITOR
128V IN
2INH
10IN COM
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
10K
BIAS
12V
28 Vdc
DVMC28 EMI FILTER DVTR2800S DC-DC CONVERTER
1
28V IN
+
-
5
IN COM
28V OUT
OUT COM
3
2
4
CASE
1
9
2
10
28V IN
SYNC
INH
IN COM
+V OUT
OUT COM
7, 8
5
6
+S
LOAD
3
-S
4
Figure 6 – Converter with EMI Filter
1X007DSG
6
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