DELTA DVTR2800D User Manual

DVTR2800D 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 500 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

• 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 Welded 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

1X008DSF

11314 4th Avenue
West, Suite 206
Everett, WA 98204

http://www.vpt-inc.com

Figure 1 – DVTR2800D / DVTR2800DF DC-DC Converter

(Not To Scale)

Sales Information:
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]

1

DVTR2800D Series

SPECIFICATIONS (T

= -55°C to +125°C, VIN = +28V ± 5%, Full Load5, 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 Load5, 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

+V

OUTPUT

Voltage

Power

Current

5

3,6

3,6

+V

±V

±V

Ripple Voltage ±V

Line Regulation

Load Regulation

Cross Regulation

+V

+V

EFFICIENCY Full Load

LOAD FAULT POWER DISSIPATION

CAPACITIVE LOAD

4

SWITCHING FREQUENCY 400 450 550 400 450 550 kHz

SYNC FREQUENCY RANGE VH – VL = 5V, DC = 20-80% 500 - 600 500 - 600 kHz

ISOLATION 500 VDC, T

MTBF (MIL-HDBK-217F) AIF @ TC = 55°C - 413 - - 413 - kHrs

See notes next page.

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

OUT TCASE

OUT TCASE

-V

OUT TCASE

-V

OUT TCASE

= 25°C 4.95 5.0 5.05 11.88 12.0 12.12 V

= -55°C to +125°C 4.925 5.0 5.075 11.82 12.0 12.18 V

= 25°C 4.80 5.0 5.20 11.80 12.0 12.20 V

= -55°C to +125°C 4.70 5.0 5.30 11.64 12.0 12.36 V

Total 0 - 30 0 - 40 W

Either Output 0 - 21 0 - 28 W

OUT

Either Output

OUT

Full Load5, 20Hz to 10MHz - - 60 - - 50 mV

OUT

OUT VIN

-V

OUT VIN

OUT

-V

OUT

-V

OUT

= 16V to 40V - - 20 - - 20 mV

= 16V to 40V - - 200 - - 200 mV

No Load to Full Load

No Load to Full Load

+Load 70%, -Load 30%
+Load 30%, -Load 70%

Overload

5

5,7

5

4

Short Circuit - - 16 - - 14 W

Either Output - - 500 - - 500

= 25°C 100 - - 100 - - MΩ

CASE

DVTR2805D DVTR2812D

Units

Min Typ Max Min Typ Max

p-p

0 - 4.2 0 - 2.33 A

p-p

- - 50 - - 50 mV

- - 200 - - 200 mV

- - 650 - - 650 mV

73 - - 78 - - %

- - 16 - - 14 W

µF

1X008DSF

2

DVTR2800D Series

SPECIFICATIONS (T

= -55°C to +125°C, VIN = +28V ± 5%, Full Load

CASE

5

, Unless Otherwise Specified)

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

DYNAMIC

Load Step Output Transient ±V

Load Step Recovery2

Line Step Output Transient

Line Step Recovery

Turn On Delay ±V

Turn On Overshoot

2, 4

4

±V

OUT

Half Load to Full Load

OUT

V

= 16V to 40V

IN

OUT

V

= 0V to 28V

IN

DVTR2805D DVTR2812D

Min Typ Max Min Typ Max

- - 400 - - 450 mV

- - 350 - - 400

- 300 600 - 500 900 mV

- 300 500 - 300 500

- - 20 - - 20 mSec

- - 25 - - 50 mV

Units

µSec

µSec

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

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.

and half load at –V

OUT

OUT

.

PK

PK

PK

1X008DSF

3

DVTR2800D Series

SPECIFICATIONS (T

= -55°C to +125°C, VIN = +28V ± 5%, Full Load5, 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 Load5, 20Hz to 10MHz - - 50 mA

Inhibit Pin Input

4

Inhibit Pin Open Circuit Voltage

UVLO Turn On 12.0 - 14.8 V

UVLO Turn Off

4

+V

OUTPUT

Voltage

Power

Current

5

3,6

3,6

+V

±V

±V

Ripple Voltage ±V

Line Regulation

Load Regulation

Cross Regulation

+V

+V

EFFICIENCY Full Load

LOAD FAULT POWER DISSIPATION

CAPACITIVE LOAD

4

SWITCHING FREQUENCY 400 450 550 kHz

SYNC FREQUENCY RANGE VH – VL = 5V, DC = 20-80% 500 - 600 kHz

ISOLATION 500 VDC, T

MTBF (MIL-HDBK-217F) AIF @ TC = 55°C - 413 - kHrs

See notes next page.

Continuous 15 28 50 V

Transient, 1 sec - - 80 V

Inhibited - - 6 mA

No Load - - 90 mA

0 - 1.5 V

4

9.0 11.0 13.0 V

11.0 - 14.5 V

OUT TCASE

OUT TCASE

-V

OUT TCASE

-V

OUT TCASE

= 25°C 14.85 15.0 15.15 V

= -55°C to +125°C 14.70 15.0 15.30 V

= 25°C 14.70 15.0 15.30 V

= -55°C to +125°C 14.55 15.0 15.45 V

Total - - 40 W

Either Output - - 28 W

OUT

Either Output

OUT

Full Load5, 20Hz to 10MHz - - 50 mV

OUT

OUT VIN

-V

OUT VIN

OUT

-V

OUT

-V

OUT

= 16V to 40V - - 20 mV

= 16V to 40V - - 200 mV

No Load to Full Load

No Load to Full Load

+Load 70%, -Load 30%
+Load 30%, -Load 70%

Overload

5

5,7

5

4

Short Circuit - - 14 W

Either Output - - 500

= 25°C 100 - - MΩ

CASE

DVTR2815D

Units

Min Typ Max

p-p

- - 1.87 A

p-p

- - 50 mV

- - 200 mV

- - 650 mV

79 - - %

- - 14 W

µF

1X008DSF

4

DVTR2800D Series

SPECIFICATIONS (T

= -55°C to +125°C, VIN = +28V ± 5%, Full Load

CASE

5

, Unless Otherwise Specified)

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

DYNAMIC

Load Step Output Transient ±V

Load Step Recovery2

Line Step Output Transient

Line Step Recovery

Turn On Delay ±V

Turn On Overshoot

2, 4

4

±V

OUT

Half Load to Full Load

OUT

V

= 16V to 40V

IN

OUT

V

= 0V to 28V

IN

DVTR2815D

Min Typ Max

- - 500 mV

- - 300

- 500 900 mV

- 300 500

- - 20 mSec

- - 50 mV

Units

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.

5. Half load at +V

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.

and half load at –V

OUT

OUT

.

1X008DSF

5

SHUTDO

SU

BLOCK DIAGRAM

DVTR2800D Series

PIN 1

28V IN

L1

IN COM

PIN 10

UNDER

VOLTAGE

WN

PRIMARY

HOUSEKEEPING

PPLY

INH

PIN 2

SYNC

PIN 9

CONNECTION DIAGRAM

C1

PWM

CONTROL

Q1

Rs1

Figure 2

T1

MAGNETIC
FEEDBACK

D2

D1

C2

VOLTAGE AND

SECONDARY

HOUSEKEEPING

C3

CURRENT

Rs3

Rs2

PIN 3

+V OUT

OUT COM

PIN 4

PIN 5

-V OUT

1X008DSF

28 Vdc

1

28V IN

+V OUT

3

9

SYNC

+

-

INH

OUT COM

2

4

LOAD

LOAD

10

IN COM

Figure 3

-V OUT

5

6