ECRI Microelectronics

M24C Series Mil-COTS DC DC Converters

1 Features of M24C Series Mil-COTS DC DC Converters

Input DC Voltage range:18~36V
m24c-series-mil-cots-dc-dc-converters
Typical input DC voltage:24V
Output voltage:3.3V,5V,12V,15V
Output power:50W~100W
Temperature(TC):-55~100℃
Lead function:Pin-pin replacement
with similar product of Vicor
Forward active clamp-synchronous
Rectification power structure



2 Scope of application of M24C Series Mil-COTS DC DC Converters

The application is military and civilian high reliable electronic system in aerospace, ship, weapon, railway and so on.

3 Descriptions of M24C Series Mil-COTS DC DC Converters

M24C series DC DC Converters are used by forward circuit topological structure, combine with technology for active clamp and feedback stabilized voltage. The series product isolate input-output, high efficiency, big density for power; they have the function for input under-voltage lockout and short-circuit protection.
Shape of the series products is same to similar products of Vicor’s second general modules, and pin-pin replacement with them. Design and manufacture of products are satisfied with the requirements of SJ20668-1998《Micro-circuit module specifications》and detailed specifications of products.

4 Technical performance of M24C Series Mil-COTS DC DC Converters

Form 2 Rated condition and recommended condition

Absolute max rating

Recommended condition

Input voltage:38V

Storage temperature:-55~125℃

Shell temperature:150℃

Input voltage:18~36V

Condition  temperature  range(Tc):-55~100℃


Form 3 Electrical Characteristic

No.

Characteristic

Conditions

(otherwise specified,-55℃≤Tc≤125℃,VIN=24V±1.2V)

M24C5M50B

M24C15M50B

M24C3V3M75B

min

max

min

max

min

max

1

Input under-voltage/V

Open voltage

TC=25℃,50% load

-

17.9

-

17.9

-

17.9

Shutdown voltage

TC=25℃,50%  load

12.5

-

12.5

-

14.8

-

2

Electrical level inhibition /V

TC=25℃,Iout=10A,output inhibition

-

0.2

-

0.2

-

0.2

3

Insulation resistance /MΩ

TA=25℃,between two of input, output, bottom plate is 500V(DC)

100

-

100

-

100

-

4

Output voltage  /V

TC=25℃, full load

4.85

5.15

14.85

15.15

3.234

3.366

5

Output current  /A

TC=25℃, full load

-

10

-

3.33

-

22.7

6

Voltage regulation rate /%

Vin=18V,

36V  full load

TC=25℃

-

1

-

1

-

2

TC=-55℃

TC=100℃

-

2

-

2

-

2

TC=25℃

-

1

-

1

-

2

7

Load regulation rate /%

Empty load,  full load  TC=-55℃

TC=100℃

-

2

-

2

-

2

8

Temperature coefficient

/%/℃

full load

-0.02

0.02

-0.02

0.02

-0.02

0.02

9

Efficiency /%

full load

TC=25℃

87

-

87

-

87

-

TC=-55℃

TC=100℃

84

-

84

-

84

-

10

Output ripple voltage(peak-peak)   mV

TA=25℃,BW≤20MHz,full load

-

200

-

200

-

100


Form 3b  Electrical Characteristic

No.

Characteristic

Conditions

(otherwise specified,-55℃≤Tc≤125℃,VIN=24V±1.2V)

M24C5M100B

M24C12M100B

min

max

min

max

1

Input under-voltage/V

Open voltage

TC=25℃,50% load

-

17.9

-

17.9

Shutdown voltage

TC=25℃,50% load

14.8

-

12.5

-

2

Electrical level inhibition /V

TC=25℃,Iout=10A,output inhibition

-

0.2

-

0.2

3

Insulation resistance /MΩ

TA=25℃,between two of input, output, bottom plate is 500V(DC)

100

-

50

-

4

Output voltage  /V

TC=25℃, full load

4.9

5.1

11.88

12.12

5

Output current  /A

TC=25℃, full load

-

20

-

8.33

6

Voltage regulation rate /%

Vin=18V,

36V  full load

TC=25℃

-

1

-

0.5

TC=-55℃

TC=100℃

-

2

-

1

TC=25℃

-

1

-

1

7

Load regulation rate /%

Empty load, full load   TC=-55℃

TC=100℃

-

2

-

2

8

Temperature coefficient

/%/℃

full load

-0.02

0.02

-0.02

0.02

9

Efficiency /%

full load

TC=25℃

84

-

85

-

TC=-55℃

TC=100℃

81

-

81

-

10

Output ripple voltage(peak-peak)   mV

TA=25℃,BW≤20MHz,full load

-

150

-

262


5 Circuit block diagram of M24C Series Mil-COTS DC DC Converters

DC/DC Converter(M24C Series)-2
Chart 2 Product elementary diagram

6. Typical characteristic curve of M24C Series Mil-COTS DC DC Converters

DC/DC Converter(M24C Series)-3
Chart 3  Efficiency(output power)

7. MTBF curve of M24C Series Mil-COTS DC DC Converters

DC/DC Converter(M24C Series)-4
Char 4  MTBF Temperature Curve
(According to GJB/Z 299B,prediction for ground in good condition,this diagram corresponds to M24C5M100B)

8 Pin Designation of M24C Series Mil-COTS DC DC Converters

DC/DC Converter(M24C Series)-5
Chart 5 Upward view

Form 4 Pin Designation

No.



Symbol

Function

1

+In

Inputpositive terminal

2

INH

Inhibition terminal

3

NC

Empty terminal

4

-

Input negative terminal

5

- Out

Output negative terminal

6

TRIM

Regulation terminal

7

+

Outputpositive terminal


9 Typical application connection of M24C Series Mil-COTS DC DC Converters

DC/DC Converter(M24C Series)-6
Chart 6  Electrical testing wiring diagram

10.Package Specificationss of M24C Series Mil-COTS DC DC Converters

DC/DC Converter(M24C Series)-7
Chart 7 package outline drawing(upward view)

Form 5  Package Outline

Symbol

Data/mm

Min

Typical

Min

A

12.20

-

13.50

A1

2.80

-

3.30

A2

10.65

-

11.40

Φb

1.90

-

2.16

D

57.52

-

58.28

E

26.42

-

27.42

e2

-

10.16

-

e3

-

6.99

-

e1

-

50.80

-

L

4.58

-

-

X1

16.26

-

16.76

Y1

32.01

-

32.51

d

3.17

-

3.55

Y

36.58

-

37.08


11 Ordering Information of M24C Series Mil-COTS DC DC Converters

DC/DC Converter(M24C Series)-8
Chart 8 Ordering Information


Application Notes:


  • The influence of external disturbance on the test accuracy should be avoided.
  • The voltage detection point should be kept at the root of the pin of the testing product.
  • Do not plug the product with electricity.
  • Before power the testing product, you must confirm the polarity of the power supply to avoid damaging products by misconnection. At the same time, please ensure that the power supply voltage and load current does not exceed using limitation of the testing product.
  • When using the shell temperature can not exceed the specified temperature, or to increase the use of heat sink.
  • When ordering this device,the detailed electrical specificationss shall be based on relevant standards.




Related Products
Model Series Max. Output Power (W) Input DC Voltage (V) Output Voltage (V)

M24C Series Mil-COTS DC DC Converters

100W 18V~36V 3.3V,5V,12V,15V

MV48C Series Mil-COTS DC DC Converters

100W,150W 36V~75V 3.3V,5V,12V,15V,24V,28V

MV24A Series Mil-COTS DC DC Converters

100W 18V~36V 3.3V,5V,12V,15V,24V,28V

270V Wide Input Series Hi-Rel DC DC Converters

150W,300W 155V~425V 5V,15V,48V

MV24B Series Mil-COTS DC DC Converters

150W,200W 18V-36V 3.3V,5V,12V,15V,24V,28V

M24B28M250B Mil-COTS DC DC Converters

250W 18V~36V 28V