VDC O

UTPUT

Size (max):MDCG-H 3.005 x 1.505 x 0.400 inches (76.33 x 38.23 x 10.16 mm)

MDCA-F 3.005 x 2.260 x 0.400 inches (76.33 x 57.40 x 10.16 mm)

Weight:

MDCG-H 100 grams maximum
MDCA-F 150 grams maximum

Screening: Standard or ES

Description
Interpoint's MDC SeriesTM of DC/DC converters offers a unique
product by effectively combining two, three, or four individual
modular DC/DC converters to provide more than one hundred
combinations. The modules are established high-reliability military
aerospace DC/DC converters with input voltages of 16 to 40 VDC
and a typical transient rating of 50 V for 50 milliseconds. All modules
operate from no-load to full load and provide a constant current limit
at each output.

Features
All converters have an inhibit function. Remote sense and trim up to
0.6V is available on the 30 watt single modules. The 15 watt and 30
watt choices have synchronization - if two are used, the synchro-
nization functions are combined internally.

ULTIPLE

UTPUT

(2-8),

ACTORY

ONFIGURABLE

DC/DC C

ONVERTERS

28 V

OLT

NPUT

MDC SERIES

UP TO 60 WATTS

EATURES

· 55° to +100°C operation
· 16 to 40 VDC input
· Two to eight outputs
* Fully Isolated
· 50 V for up to 50 ms transient

protection

· Inhibit function
· Sync function available on

select modules

· Sense available on select

single output modules

· Short circuit protection

Mix or match volt-
ages and power to
configure from two
to eight outputs.

Table 1: Modules Power and Vout

Power

Vout

Features

30 Watt

3.3

Inhibit &

Sync &

Sense/

Trim up

18
±5

Inhibit &

±12

Sync

±15

15 Watt

3.3

Inhibit &

Sync

5.2

12
15
28
±5

±12
±15

Power

Vout

Features

5 Watt

Inhibit

5.2

12
15
±5

±12
±15

1.5 Watt

3.3

Inhibit

5
5.2

12
15
±5

±12
±15

MDC SERIES
UP TO 60 WATTS

ACTORY

ONFIGURABLE

DC/DC C

ONVERTERS

Table 2: Configurations

Case Size: 3. 005 x 1.505 x 0.400 inches (76.33 x 38.23 x 10.16 mm)

Configuration

Resulting

Module Power (Watts)

Selection Letter

Output Power (W)

1.5

Case Size: 3.005 x 2.260 x 0.400 inches (76.33 x 57.40 x 10.16 mm

Configuration

Resulting

Module Power (Watts)

Selection Letter

Output Power (W)

1.5

Selecting a configuration:
Begin with the base model letters - MDC. Add a
configuration letter from "Table 2: Configurations"
that matches the number of outputs and power
level you require. Using "Table 1: Modules" from
page 1, choose from the available voltages in the
power levels determined by the configuration letter.
Add the chosen voltages to the model and configu-
ration letters beginning with the highest wattage
down to the lowest.

As an example: To configure a four output, 45 watt,
converter begin with MDCB. Choose the output
voltages for the 30 watt, 15 watt, and 1.5 watt
modules in Table 2. For this example a 30 watt 5
volt dual output, a 15 watt 28 volt single output, and
a 1.5 watt 12 volt output were selected. The
resulting configuration is MDCB/05D/28S/12S.

More Examples:
MDCD/15D/12S/5S/5S
33 watt total, five outputs:
15 watt dual 15 volt, 15 watt single 12 volt, 1.5 watt
single 5 volt, 1.5 watt single 5 volt

MDCB/3.3S/5D/12D
45 watt total, five outputs: 30 watt single 3.3 volt, 15
watt dual 5 volt, 1.5 watt dual 12 volt

1. Case has eighteen pins which may limit the number of output voltages available.

2. Case has twelve pins which may limit the number of output voltages available.

Note: The specifications on the following pages are for the individual modules. The specifications/perform-
ance of the configured converter may vary from the specifications in the "Electrical Characteristics" tables.
Please contact the factory for details.

MDC SERIES
UP TO 60 WATTS

ACTORY

ONFIGURABLE

DC/DC C

ONVERTERS

30 Watt Single Output Modules

SINGLE OUTPUT MODULES

3R3S

05S

12S

15S

18S

PARAMETER

CONDITION

MIN

TYP

MAX

MIN TYP MAX

MIN

TYP

MAX

MIN

TYP

MAX

MIN

TYP

MAX

UNITS

OUTPUT VOLTAGE

3.27

3.30

3.33

4.95

5.00

5.05 11.88 12.00 12.12 14.85 15.00 15.15 17.82 18.00 18.18

VDC

OUTPUT CURRENT

= 16 to 40 VDC

6.06

5.0

2.5

2.0

1.67

OUTPUT POWER

= 16 to 40 VDC

OUTPUT RIPPLE

10 kHz 2 MHz

mV p-p

VOLTAGE

Tc = 55°C TO +125°C

LINE REGULATION

Vin = 16 to 40 VDC

Tc = 55°C TO +125°C

LOAD REGULATION

NO LOAD TO FULL

Tc = 55°C TO +125°C

INPUT VOLTAGE

CONTINUOUS

VDC

NO LOAD TO FULL

TRANSIENT 50 ms

INPUT CURRENT

NO LOAD

FULL LOAD

0.94

1.15

1.30

1.25

1.33

INHIBITED

INPUT RIPPLE

10 kHz 10 MHz

CURRENT

Tc = 55°C TO +125°C

mA p-p

EFFICIENCY

LOAD FAULT

SHORT CIRCUIT

POWER DISSIPATION

RECOVERY

1, 4

1.4

STEP LOAD RESP.

50% 100% 50%

TRANSIENT

±125

±250

±200 ±300

±250 ±400

±350 ±500

±600

mV pk

RECOVERY

200

µs

STEP LINE RESP.

16 40 16 VDC

TRANSIENT

±300

±200 ±300

±400 ±500

±500 ±600

±500

mV pk

RECOVERY

300

µs

START-UP

DELAY

1.4

OVERSHOOT

FULL LOAD

120

150

mV pk

NO LOAD

150

250

120

600

150

750

TYPICAL CHARACTERISTICS

SYNC AND INHIBIT

RECOMMENDED OPERATING CONDITIONS

ABSOLUTE MAXIMUM RATINGS

Input Voltage

· 16 to 40 VDC

Output Power

· 25 to 30 watts depending on model

Lead Soldering Temperature (10 sec per pin)

· 300°C

Storage Temperature Range (Case)

· 65°C to +135°C

Output Voltage Temperature Coefficient

· 100 ppm/°C typical single and dual outputs
· 200 ppm/°C main, 300 ppm/°C aux

triple output

Input to Output Capacitance

· 50 pF typ. (100 pF typ triple outputs)

Current Limit

· 115% of full load typical

Isolation

· 100 megohm minimum at 500 V

Audio Rejection

· 40 dB typ (50 dB typ triple output)l

Conversion Frequency

· Free run 550 min, 600 typ, 650 max kHz
· External sync 500 to 675 kHz

Inhibit Pin Voltage (unit enabled)

· 9 to 11 V

Input Voltage Range

· 16 to 40 VDC continuous
· 50 V for 50 msec transient

Case Operating Temperature (Tc)

· 55°C to +100°C full power
· 55°C to +115°C absolute

Derating Output Power/Current

· Linearly from 100% at 100°C to 0% at 115°C

Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.

Sync (500 to 675 kHz)

· Duty cycle 40% min, 60% max
· Logic low 0.8 V max
· Logic high 4.5 V min, 5 V max
· Referenced to input common
· If not used, connect to input common

Inhibit TTL Open Collector

· Logic low (output disabled)

Voltage

0.8 V

Inhibit pin current 8.0 mA max

· Referenced to input common
· Logic high (output enabled)

Open collector

Notes
1. Tc = 55°C to +100°C
2. Operation is limited below 16V.
3. Indefinite short circuit protection not guaranteed above 100°C case.

4. Recovery time is measured from application of the transient to point at which

Vout is within 1% of final value.

5. Transition time

10 µs.

MDC SERIES

UP TO 60 WATTS

ACTORY

ONFIGURABLE

DC/DC C

ONVERTERS

30 Watt Dual Output Modules

DUAL OUTPUT MODULES

05D

12D

15D

PARAMETER

CONDITIONS

MIN TYP MAX

MIN

TYP

MAX

MIN

TYP

MAX

UNITS

OUTPUT VOLTAGE

OUT

4.95

5.00

5.05

11.88

12.00

12.12 14.85

15.00

15.15

VDC

OUT

4.92

5.00

5.07

11.82

12.00

12.18

14.77

15.00

15.23

OUTPUT CURRENT

1, 2

= 16 TO 40 VDC

2.5

4.5

1.25

2.25

1.0

1.8

OUTPUT POWER

1, 2

= 16 TO 40 VDC

OUTPUT RIPPLE

10 kHz - 2 MHz

mV p-p

VOLTAGE +/ V

OUT

Tc = 55°C TO +125°C

120

LINE REGULATION

OUT

= 16 TO 40 VDC

OUT

100

120

150

Tc = 55°C +V

OUT

TO +125°C

OUT

100

150

180

LOAD REGULATION

OUT

NO LOAD TO FULL

OUT

120

150

Tc = 55°C

OUT

TO +125°C

OUT

100

180

CROSS REGULATION

SEE NOTE 4

8.3

EFFECT ON V

OUT

SEE NOTE 5

INPUT VOLTAGE

CONTINUOUS

VDC

NO LOAD TO FULL

TRANSIENT 50 ms

INPUT CURRENT

NO LOAD

FULL LOAD

1.10

1.34

1.29

INHIBITED

INPUT RIPPLE

CURRENT

10 kHz - 10 MHz

mA p-p

EFFICIENCY

LOAD FAULT

POWER DISSIPATION

SHORT CIRCUIT

RECOVERY

1.4

5.0

1.4

5.0

1.4

5.0

STEP LOAD 50

100 50% BALANCED

RESPONSE ± V

OUT

TRANSIENT

±200

±300

±150

±300

±200

±400

mV pk

RECOVERY

100

200

100

200

100

200

µs

STEP LINE

16 40 16 V

RESPONSE ± V

OUT

TRANSIENT

±200

±400

±200

±400

±500

mV pk

RECOVERY

300

µs

STARTUP

DELAY

1.4

OVERSHOOT

FULL LOAD

120

150

mV pk

NO LOAD

250

120

600

150

750

Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.

Notes
1.Tc = 55°C to +100°C.
2. Up to 90% of the total output current/power is available from either output

providing the positive output is carrying at least 10% of the total output
power.

3. Operation is limited below 16 V (see Figure 21).

out

20% to 80%; P

out

80% to 20%

5. Effect on the negative output under the following conditions:

out

50%; P

out

10% to 50%

6. Indefinite short circuit protection not guaranteed above 100°C case.
7. Recovery time is measured from application of the transient to point at which

Vout is within 1% of final value.

8. Transition time

10 µs.

Ð­Ð»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: MDCB5D

ÐÐ»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: MDCB5D