MODELS

VDC O

UTPUT

B2-93

Size (max.): 1.010 x 0.880 x 0.250 inches (25.65 x 22.35 x 6.35 mm)

Shown with "Gull Wing" lead option, also available with straight
leads. See Section B8, case B, for dimensions and options.

Weight:

12 grams maximum

Screening: Standard, ES, or 883 (Class H). See Section C2 for

screening options, see Section A5 for ordering information.

SINGLE

12
15

DUAL

±5

±12
±15

DESCRIPTION

The MGH SeriesTM of DC/DC converters delivers 1.5 watts of output
power in a labor saving surface mount package. The wide input
voltage range of 12 to 50 VDC accepts the varying voltages of mili-
tary, aerospace, or space applications. Single output converters
feature outputs of 5, 12, or 15 volts while dual output models feature
outputs of ±5, ±12, or ±15 volts. Transient protection of 80 volts for
up to 120 milliseconds exceeds the requirements of MIL-STD-704A
for the 5 and 12 volt single and dual models. The 15 volt single and
dual converters will withstand transients of up to 70 volts for up to
120 milliseconds.

ONVERTER

ESIGN

MGH Series DC/DC converters incorporate a continuous flyback
topology with a constant switching frequency of approximately 370
kHz. Output voltage regulation is accomplished on the primary side
using current-mode pulse width modulation (PWM). Regulation is
affected by the output load; refer to the specifications tables for
more information.

For dual output models, up to 80% of the total load may be on one
output providing the other output carries a minimum of 20% of the
total load. The dual models can be used at double the output voltage
by connecting the load between positive and negative outputs,
leaving the common unconnected. As an example the MGH2805D
(5 volt dual output) can be used as a 10 VDC output.

NHIBIT

UNCTION

When an open collector TTL logic low is applied to the inhibit
terminal, pin 18, the converter shuts down and lowers the output
voltage to near zero and input current to as low 2.3 mA. Leaving the
terminal open or applying an open collector TTL logic high will
enable the converter.

ROTECTION

EATURES

Undervoltage lockout prevents the MGH Series converters from
operating below approximately 8 VDC input voltage to keep system
current levels smooth, especially during initialization or re-start oper-
ations. All models include a soft-start function to prevent large
current draw and minimize overshoot. The MGH Series of
converters also provide short circuit protection by limiting the current
to approximately 125% of full load.

MIL-STD-461

Use Interpoint's FMGA-461 EMI filter to pass the CE03 require-
ments of MIL-STD-461C.

URFACE

OUNT

ACKAGE

MGH DC/DC converters can be surface mounted with pick-and-
place equipment or manually. It is recommended that the case be
attached with flexible epoxy adhesive or silicone which is thermally
conductive (>1 watt /meter/°K).

Internal components are soldered with SN96 (melting temperature
221°C) to prevent damage during reflow. Maximum reflow tempera-
ture for surface mounting the MGH converter is 220°C for a
maximum of 30 seconds. SN60, 62, or 63 are the recommended
types of solder. Hand soldering should not exceed 300°C for 10
seconds per pin.

The hermetically sealed metal cases are available in two different
lead configurations. See Section B8, case B.

DC/DC C

ONVERTERS

28 V

OLT

NPUT

MGH SERIES

1.5 WATT

EATURES

· 55° to +125°C operation
· 12 to 50 VDC input
· Fully Isolated
· Magnetic feedback
· Fixed frequency 370 kHz typical
· Topology Current Mode Flyback
· 80 V for up to 120 ms transient protection

(70 V for 15 V single and dual models)

· Inhibit function
· Indefinite short circuit protection
· Up to 79% efficiency

TYPICAL CHARACTERISTICS

RECOMMENDED OPERATING CONDITIONS

ABSOLUTE MAXIMUM RATINGS

INHIBIT

Input Voltage

· 12 to 50 V

Output Power

· 1.5 watts

Capacitive Load

· 200 µF single output models
· 100 µF each output, dual output models

Lead Soldering Temperature

· Reflow 220°C 30 sec. max

SN60, 62 or 63 recommended solder

· Hand solder 300°C 10 sec. max per lead

Storage Temperature Range (Case)

· 65°C to +150°C

B2-94

MGH SERIES
1.5 WATT

DC/DC C

ONVERTERS

Output Voltage Temperature Coefficient

· 100 ppm/°C typical

Input to Output Capacitance

· 100 to 170 pF typical

Undervoltage Lockout

· 8 V input typical

Current Limit

· 125% of full load typical

Isolation

· 100 megohm minimum at 500 V

Conversion Frequency (kHz)

· 25°C

300 min, 370 typ, 450 max

· 55°C to +125°C

270 min, 370 typ, 470 max

Inhibit Pin Voltage (unit enabled)

· 7 to 12 V

Input Voltage Range

· 12 to 50 VDC continuous
· 80 V for 120 msec transient

(70 V for 15 V single and dual models)

Case Operating Temperature (Tc)

· 55°C to +125°C full power
· 55°C to +135°C absolute

Derating Output Power/Current

· Linearly from 100% at 125C° to 0% at 135 C

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

Inhibit: TTL Open Collector

· Logic low (output disabled)

Logic low voltage

0.8 V

Inhibit pin current 1 mA max

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

SINGLE OUTPUT MODELS

MGH2805S

MGH2812S

MGH2815S

PARAMETER

CONDITIONS

MIN TYP MAX

MIN

TYP

MAX

MIN

TYP

MAX

UNITS

OUTPUT VOLTAGE

Tc = 25°C

4.95

5.05

11.88

12.12

14.85

15.15

VDC

Tc = 55°C TO +125°C

4.80

5.20

11.52

12.48

14.40

15.60

OUTPUT CURRENT

= 12 to 50 VDC

300

125

100

OUTPUT POWER

= 12 to 50 VDC

1.5

OUTPUT RIPPLE

10 kHz - 2 MHz

150

200

150

mV p-p

VOLTAGE

Tc = 55°C TO +125°C

300

250

LINE REGULATION

VIN = 12 to 50 VDC

100

200

300

Tc = 55°C TO +125°C

120

250

350

LOAD REGULATION

10% TO FULL LOAD

350

700

600

1300

700

1500

Tc = 55°C TO +125°C

380

800

640

1400

760

1600

50% TO FULL LOAD

100

200

145

300

165

350

Tc = 55°C TO +125°C

115

300

160

400

185

450

INPUT VOLTAGE

CONTINUOUS

VDC

NO LOAD TO FULL

TRANSIENT 120 ms

INPUT CURRENT

NO LOAD

5.5

6.0

Tc = 55°C TO +125°C

6.0

6.5

FULL LOAD

Tc = 55°C TO +125°C

INHIBITED

2.3

3.2

2.3

3.2

2.3

3.2

Tc = 55°C TO +125°C

2.4

3.5

2.4

3.5

2.4

3.5

INPUT RIPPLE

10k Hz - 10 MHz

100

200

100

200

100

200

mA p-p

CURRENT

Tc = 55°C TO +125°C

130

250

150

250

150

250

EFFICIENCY

Tc = 25°C

Tc = 55°C TO +125°C

LOAD FAULT

3, 4

POWER DISSIPATION

1.3

2.0

3.2

2.3

3.7

Tc = 55°C TO +125°C

1.4

2.3

2.2

3.5

2.5

4.0

RECOVERY

3.0

3.5

4.0

Tc = -55°C TO +125°C

3.5

4.0

STEP LOAD

TRANSIENT

400

185

400

700

350

700

350

700

mV pk

RESPONSE

Tc = 55°C TO +125°C

500

185

500

800

380

800

380

800

50 %100% 50%

RECOVERY

125

500

130

500

140

600

µs

Tc = 55°C TO +125°C

125

600

130

600

180

750

STEP LINE

TRANSIENT

400

170

400

900

400

900

750

400

750

mV pk

RESPONSE

Tc = 55°C TO +125°C

500

180

500

1000

400

1000

850

450

850

12 TO 50 TO 12 V

RECOVERY

0.75

3.0

0.6

2.5

0.47

2.0

Tc = 55°C TO +125°C

0.75

4.0

0.6

3.0

0.5

2.5

START-UP

DELAY

0 TO 28 VDC

Tc = 55°C TO +125°C

OVERSHOOT

100

250

300

mV pk

Tc = 55°C TO +1 25°C

150

350

450

Notes
1. Specified at 50% of full load.
2. Lin = 2 µH
3. Max. duration of short circuit: 25°C 90 seconds; 125°C 30 seconds.

4. Load fault is a short circuit (<50 mohms). Recovery into resistive full load.
5. Input step transition

10 µs.Recovery is time to settle to within 1% of Vout

final value.

B2-95

MGH SERIES

1.5 WATT

DC/DC C

ONVERTERS

DUAL OUTPUT MODELS

MGH2805D

MGH2812D

MGH2815D

PARAMETER

CONDITIONS

MIN TYP MAX

MIN

TYP

MAX

MIN

TYP

MAX

UNITS

OUTPUT VOLTAGE

Tc = 25°C

±4.95

±5

±5.05

±11.88

±12

±12.12

±14.85

±15

±15.15

VDC

Tc = 55°C TO +125°C

±4.80

±5

±5.20

±11.52

±12

±12.48

±14.40

±15

±15.60

OUTPUT CURRENT

= 12 to 50 VDC

±150

240

±62.5

100

±50

OUTPUT POWER

= 12 to 50 VDC

1.5

OUTPUT RIPPLE

10 kHz - 2 MHz

150

VOLTAGE +V

OUT

Tc = 55°C TO +125°C

250

mV p-p

OUT

10 kHz - 2 MHz

150

Tc = 55°C TO +125°C

250

LINE REGULATION

VIN = 12 to 50 VDC

100

300

165

500

Tc = 55°C TO +125°C

100

110

400

180

650

LOAD

REGULATION

, 4

10% TO FULL LOAD

300

600

550

1100

600

1300

55°C TO +125°C

350

700

570

1200

630

1400

50% TO FULL LOAD

200

115

250

125

300

55°C TO +125°C

100

300

130

350

135

400

CROSS

REGULATION

OUT

400

500

INPUT VOLTAGE

CONTINUOUS

VDC

NO LOAD TO FULL

TRANSIENT 120 ms

INPUT CURRENT

NO LOAD

5.0

7.5

Tc = 55°C TO +125°C

6.0

8.0

FULL LOAD

Tc = 55°C TO +125°C

INHIBITED

2.3

3.2

2.3

3.2

2.3

3.2

Tc = 55°C TO +125°C

2.4

3.5

2.4

3.5

2.4

3.5

INPUT RIPPLE

10 kHz - 10 MHz

100

200

115

200

mA p-p

CURRENT

Tc = 55°C TO +125°C

130

250

150

250

120

250

EFFICIENCY

Tc = 25°C

Tc = 55°C TO +125°C

LOAD FAULT

7,8

POWER DISSIPATION

1.4

2.2

2.5

3.8

2.7

4.1

Tc = 55°C TO +125°C

1.6

2.5

2.7

4.2

3.0

4.5

RECOVERY

3.7

3.2

4.0

Tc = 55°C TO +125°C

3.8

3.2

4.0

STEP LOAD TRANSIENT

300

130

300

600

250

600

250

600

mV pk

RESPONSE

Tc = 55°C TO +125°C

400

140

400

700

260

700

270

700

± V

out

RECOVERY

100

400

165

700

200

µs

50 %100% 50%

55°C TO +125°C

100

500

165

800

300

STEP LINE

TRANSIENT

250

125

250

500

240

500

220

500

mV pk

RESPONSE

Tc = 55°C TO +125°C

300

130

300

600

250

600

230

600

± V

out

RECOVERY

0.6

2.5

0.9

3.0

0.6

3.0

12 TO 50 TO 12 V

Tc = 55°C TO +125°C

0.6

3.0

0.9

4.0

0.7

4.0

STARTUP

DELAY

0 TO 28 VDC, ± V

out

Tc = 55°C TO +125°C

OVERSHOOT

100

250

750

mV pk

Tc = 55°C TO +125°C

150

350

900

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

Notes:
1. Specified at 50% load.
2. Max. spec indicates 80% of the converter's total available power. This 80%

is available from either output.

3. Specification applies to both + and Vout.
4. Although no minimum load is required, at no load the output voltage may

increase up to 15%.

5. Cross regulation is specified as the effect on Vout for the following percent-

ages of total output power: +Po = 20% and
Po = 80% to +Po=80% and Po=20%

6. Lin = 2 µH.
7. Max. duration of short circuit: 25°C 90 seconds; 125°C 30 seconds.
8. Load fault is a short circuit (<50 mohms). Recovery into resistive full load.
9. Input step transition

10 µs.Recovery is time to settle to within 1% of Vout

final value.

SMD NUMBERS

PIN OUT

Dual models only

Negative
Output

Output
Common

Positive
Output

Positive

Input

Inhibit

Shutdown

PWM

Controller

Input

Common

+Vin

+Vout

Case

Ground

MGH 28 12 S Z / ES

Base Model

Input Voltage

Output Voltage

Screening

Number of Outputs

(S = single, D = dual)

Gull Wing Lead Option
(Straight leaded case has no designator
in this position.)

(Standard screening has no designator
in this position.)

B2-96

MGH SERIES
1.5 WATT

DC/DC C

ONVERTERS

IGURE

1: B

LOCK

IAGRAM

Pin

Single Output

Dual Output

Positive Input

No connection

Input Common

4, 5

Positive Output

6, 7

Case Ground

8, 9

Output Common

10, 11

Case Ground

No connection

13, 14

No connection

Negative Output

15, 16, 17

No connection

Inhibit

MODEL NUMBERING KEY

To meet specified performance, all pins must
be connected except "No Connection" pins.

IGURE

2: P

TANDARD

ICROCIRCUIT

RAWING

(SMD)

5962-9569601HXC
5962-9569701HXC
5962-9569801HXC
5962-9570201HXC
5962-9570301HXC
5962-9570401HXC

MGH S

ERIES

IMILAR

ART

MGH2805S/883
MGH2812S/883
MGH2815S/883
MGH2805D/883
MGH2812D/883
MGH2815D/883

1
2
3
4
5
6

18
17
16
15
14
13
12
11
10

TOP VIEW

MGH

Differently colored glass bead around pin one or dimple in
header (bottom or side of case) indicates pin one.
Cover marking is oriented with pin one at the upper right corner.

For exact specifications for an SMD product, refer to the SMD
drawing. Call your Interpoint representative for status on the
MGH SMD releases. See Section A3, SMDs, for more infor-
mation.

See Section B8, case B, for dimensions and "gull-wing" option.

B2-97

MGH SERIES

1.5 WATT

DC/DC C

ONVERTERS

Typical Performance Curves: 25°C Tc , 28 VDC Vin, 100% load, unless otherwise specified.

EFFICIENCY

0.25

0.5 0.75

1.25 1.5

OUTPUT POWER

ALL 5 VOLT MODELS

12 VOLT

28 VOLT

EFFICIENCY vs LINE & LOAD

50 VOLT

1.75

IGURE

1.75

EFFICIENCY

0.25

0.5 0.75

1.25 1.5

OUTPUT POWER

12 & 15 V SINGLES

12 VOLT

28 VOLT

50 VOLT

EFFICIENCY vs LINE & LOAD

IGURE

1.75

EFFICIENCY

0.25

0.5 0.75

1.25 1.5

OUTPUT POWER

12 & 15 V DUAL MODELS

12 VOLT

28 VOLT

50 VOLT

EFFICIENCY vs LINE & LOAD

IGURE

2V/div.

20V/div.

out

TURN-ON INTO FULL LOAD

16 18

TIME (ms)

MGH2805S

Representative of all 5 volt models

LOAD TRANSIENT RESPONSE

200 mV / div.

500

s / div.

MGH2815D

OUT

FULL LOAD TO HALF LOAD

OUT

HALF LOAD TO FULL LOAD

OUT

FULL LOAD TO HALF LOAD

OUT

HALF LOAD TO FULL LOAD

100

ATTENUATION (dB)

AUDIO REJECTION

FREQUENCY (kHz)

MGH2815S - Representative of all models

IGURE

LINE TRANSIENT RESPONSE

100 mV / div.

200 s / div.

20 V / div.

out

MGH2805S

12 VDC

50 VDC

IGURE

LINE TRANSIENT RESPONSE

200 mV / div.

200 s / div.

20 V / div.

out

MGH2815D

out

12 VDC

50 VDC

IGURE

LOAD TRANSIENT RESPONSE

100 mV / div.

500 s / div.

MGH2805S

HALF LOAD TO FULL LOAD

FULL LOAD TO HALF LOAD

B2-98

MGH SERIES
1.5 WATT

DC/DC C

ONVERTERS

Typical Performance Curves: 25°C Tc , 28 VDC Vin, 100% load, unless otherwise specified.

5V/div.

20V/div.

out

TURN-ON INTO FULL LOAD

40 45

TIME (ms)

MGH2815D

Also representative of MGH2812S & D and MGH2815S

out

0 V for V

out

0 V for +V

out

IGURE

Vout VOLTAGE CHANGE (%)

-4

-2

90/10 70/30 50/50 30/70 10/90

OUTPUT LOAD (%)

DUAL

CROSS REGULATION

90% TO 10% LOAD ON +V
10% TO 90% LOAD ON V

+12

+15

IGURE

out

VOLTAGE CHANGE (%)

-4

-2

OUTPUT LOAD (%)

DUAL

CROSS REGULATION

50% LOAD +V; 50% TO 10% LOAD V

AND

50% LOAD V; 50% TO 10% LOAD +V

SAFE OPERATING AREA

120

100

out

NOMINAL %

% OF FULL LOAD

OUTPUT VOLTAGE vs. OUTPUT LOAD

100 120 140

160

TRIP POINT

125%

IGURE

22622-001-DTS Rev A

DQ# 1033

All technical information is believed to be accurate, but no responsibility is
assumed for errors or omissions. Interpoint reserves the right to make changes in
products or specifications without notice. MGH Series is a trademark of Interpoint.
Copyright © 1998 - 1999 Interpoint. All rights reserved.

1.000

(25.40)

0.870 (22.10)

0.060 (1.52)

0.075 (1.91)

0.030 (0.76)

0.100 (2.54) 4X

0.100 (2.54) 16X

B8-7

CASE B

ASES

CASE B

TOP VIEW

See Figure 6

for pin

configurations.

0.880 max

(22.35)

Materials
Header

Kovar/Nickel/Gold

Cover Kovar/Nickel
Pins Kovar/Nickel/Gold,

matched glass seal

Case dimensions in inches (mm)
Tolerance

0.005 (0.13) for three decimal places

0.01 (0.3) for two decimal places

unless otherwise specified

Cover marking is oriented with pin one
at the upper right corner.

1.010 max

(25.65)

CAUTION
Maximum reflow temperature is 220

C for a

maximum of 30 seconds. SN60, SN62, or SN63
are the recommended types of solder. See below
for Solder Mask instructions.

Hand soldering should not exceed 300

C for 10

seconds per pin.

Differently colored glass bead around pin one or dimple
in header (bottom or side of case) indicates pin one.

(This view shows
straight leads.)

Gull Wing Leads

Option

0.135 ref. (3.43)

Gull wing leads are solder dipped.
Lead dimensions are prior to solder dip.

0.08

(2.0)

0.010 (0.25)

Bottom of case to

bottom of lead

0.055
(1.40)

0.070
(1.78)

0.08 (2.0)

1.140 ref. (28.96)

FMGA EMI Filter: Screening Standard, ES, or 883
MGH Series: Screening Standard, ES, or 883

TOP VIEW CASE B

0.010

(0.25)

1.870 ref. (47.50)

0.015

(0.38)

0.010

(0.25)

0.900 (22.86)
0.800 (20.32)
0.700 (17.78)
0.600 (15.24)
0.500 (12.70)
0.400 (10.16)
0.300 ( 7.62)

Differently colored glass bead around pin one or dimple in
header (bottom or side of case) indicates pin one.
Cover marking is oriented with pin one at the upper right corn

1
2
3
4
5
6

18
17
16
15
14
13
12
11
10

0.000

Straight Leads

0.50

(12.7)

0.250 max.

(6.35)

0.200 ( 5.08)
0.100 ( 2.54)

Seam seal

Solder Mask Notes
1. Pad dimensions are for the solder mask opening. Lead common to

each other can be connected underneath as desired.

2. Ground pins should be connected to the center pad for improved

grounding.

3. Center pad should not have a solder mask. Solder, copper, or Au/Ni

plate are preferred over solder for adhesive attach.

4. Solder coat to solder down converter.
5. If less rotation of case is desired, make the pad width 0.020inches

(0.51 mm). Pad length can be extended 0.010 inches (0.25 mm)
towards the case body and as-desired dimension away from the case
body.

6. Do not exceed 220°C as measured on the body of the converter (top

or bottom).

7. Attach the body of the case to the board with a thermally conductive

adhesive or SN60, 62, or 63 solder. The adhesive can be electrically
conductive as well. It can be applied as an underfill post solder or
dispensed and cured prior or during solder.

Note: Although every effort has been made to render the case drawings at actual size, variations in the printing process may cause some distortion. Please refer

to the numerical dimensions for accuracy.

IGURE

6: C

ASE

IGURE

7: C

ASE

B S

OLDER

ASK

IGURE

5: C

ASE

B M

AXIMUM

IMENSIONS

C2-10

TEST (125°C Products)

STANDARD

/ES

/883 (Class H)*

PRE-CAP INSPECTION

Method 2017, 2032

yes

TEMPERATURE CYCLE (10 times)

Method 1010, Cond. C, -65°C to 150°C

yes

Method 1010, Cond. B, -55°C to 125°C

yes

CONSTANT ACCELERATION

Method 2001, 3000 g

yes

Method 2001, 500 g

yes

BURN-IN

Method 1015, 160 hours at 125°C

yes

96 hours at 125°C case (typical)

yes

FINAL ELECTRICAL TEST MIL-PRF-38534, Group A

Subgroups 1 through 6: -55°C, +25°C, +125°C

yes

Subgroups 1 and 4: +25°C case

yes

HERMETICITY TESTING

Fine Leak, Method 1014, Cond. A

yes

Gross Leak, Method 1014, Cond. C

yes

Gross Leak, Dip (1 x 10

-3

)

yes

FINAL VISUAL INSPECTION

Method 2009

yes

Test methods are referenced to MIL-STD-883 as determined by MIL-PRF-38534.

*883 products are built with element evaluated components and are 100% tested and guaranteed over

the full military temperature range of 55°C to +125°C.

MOR Series
MFLHP Series
MFL Series
MHP Series
MTR Series
MQO Series**

MHD Series
MHV Series
MHF+ Series
MHF Series**
MGA Series
MSA Series

MGH Series
MCH Series
FM-704A EMI Filter
FMD**/FME EMI Filter
FMC EMI Filter
FMH EMI Filter

FMGA EMI Filter
FMSA EMI Filter
HUM Modules**
LCM Modules**
LIM Modules

QA SCREENING
125°C PRODUCTS

125°C P

RODUCTS

Applies to the following products

**MFLHP Series, MQO Series, MHF Series, FMD EMI Filters, Hum Modules, and LCM Modules do not offer
`883" screening.

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ÐÐ»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: MGH2805D/883