ECRI Microelectronics

Half-Brick MI-270N Series Mil-COTS DC DC Converters

1 Features of Half-Brick MI-270N Series Mil-COTS DC DC Converters

Input voltage range: 220~320V

Typical input direct voltage: 270V

Output voltage: 10V、12V、28V

Output power: 400W

Output voltage regulation range: -20%~10%

Output over-current/over-voltage protection

Thermal protection   

Working temperature(TC):-55~100℃

Fix-frequency PWM control method

Standard-brick size  

Pins function: compatibility with similar products of SynQor 

2 Scope of application of Half-Brick MI-270N Series Mil-COTS DC DC Converter

For high reliability electronic systems in aviation, aerospace, etc.

3 Descriptions of Half-Brick MI-270N Series Mil-COTS DC DC Converter

Half- Brick MI-270N Series DC/DC Converters use two stages circuit topology, the first stage is voltage regulation stage, the second stage is input-output isolation stage. Output voltage produce error amplifying signal by error amplifier. This signal is use for control the duty ratio of PWM waveform thus controlling the output voltage of the whole module.
These series products has module circuits structure with PCB surface mounted technology, inside the products, using conductivity material for embedding and aluminum baseboard for cooling. The products’ outlines are compatible with similar products’ of SynQor, and their pins can be replacement.

4 Technical Specifications of Half-Brick MI-270N Series Mil-COTS DC DC Converter

Table 2: Rated conditions and Operating conditions

Absolute maximum rating

Operating conditions

Input Voltage: 350V

Output Power: 440W

Storage temperature: -55~125℃

Lead welding temperature(10s): 300℃

Junction Temperature:<150℃

Input voltage: 220~320V

Working temperature(Tc):-55~100℃


Table 3a electrical characteristics(MI-270N-10-HT-N-M-F)

No.

Character

Symbol

Conditions

(Unless otherwisespecified(MI-270N-10-HT-N-M-F)

,-55℃≤Tc≤125℃,VIN=270V)

Limit value

Unit

min

max

1

Input Transient voltagea/V

Vis

TA=25℃,Less 100ms

200

350

V

2

Input under-voltage/V

turn-on voltage

VINL-ONT


VINL-OFF

TA=25℃

185

195

V

Turn-off voltage

TA=25℃

170

179

V

3

Output Voltage

Vo

Full-load

TA=25℃

9.90

10.10

V

Tc=-55℃

TC=100℃

9.75

10.25

4

Output Current

Io

Vin=220V~320V

-

40

A

5

Voltage Regulation

Sv

220V  320V,Full-load

TA=25℃、 Tc=-55℃ and TC=100℃

-

±0.30

%

6

Load Regulation

S1

No-load Full-load

TA=25℃、 Tc=-55℃ and TC=100℃

-

±0.30

%

7

Output voltage regulation range a

VTR

TA=25℃,Full-load

-20

10

%

8

Output ripple voltage

VPP

BW≤20MHz, full-load, peak-peak


TA=25℃、 Tc=-55℃和 TC=100℃

-

100

mV

9

Output over-voltage protection point

VOVP

TA=25℃,design guarantee

11.25

13.75

V

10

Output current for over-current protection

Iimax

TA=25℃

43.2

52.8

A

11

Output load respond recovery voltage


50%to100%to50% Iomax(0.1A/μs)

TA=25℃

-

6

%Vo

12

Output load respond recovery time


50%to100%to50% Iomax(0.1A/μs)

TA=25℃

-

5

mS

13

Capacitive Load

Co

Full-load, TA=25℃

-

4000

μF

14

Efficiency a

η

Vin=240V,Full-load or half-load, TA=25℃

91

-

%

Vin=280V, Full-load or half-load, TA=25℃

91

-

%

Efficiency

Vin=220V, Full-load or half-load, TA=25℃

89

-

%

Vin=320V, Full-load or half-load, TA=25℃

89

-

%

15

Output Voltage Temperature rate

av

Full-load

-

±0.04

%/℃

16

Input reflect ripple voltage


Full-load, TA=25℃, Peak-Peak

-

5

V

17

Isolation voltage

Viso

TA=25℃,10s,1mA

Between input and output

1500

-

VDC

18

Isolation Resistance/MΩ

Riso

TA=25℃

500vdc

Between input ground and output ground

100

-

Between Input ground and Metal package

100

-

Between Output ground and Metal package

100

-

19

Over-heat protection

TOTP

Temperature of package

100

110

20

Parallel power distributing precision

PE

Full-load, TA=25℃

-

5

%

21

Parallel power distributing precision a


Full-load, TC=-55℃, TC=100℃

-

5

%

22

Parallel power distributing precision


Half-load, TA=25℃

-

8

%

23

Input supply ripple current a


8-parallel, full-load, single output ripple current peak-peak, TA=25℃

-

2

A

24

Input reflect ripple current a


8-parallel, full-load, single input reflect ripple current peak-peak, TA=25℃

-

800

mA

25

Output Overshoot Amplitude


Full-load, TA=25℃


-

1

%

26

Output Overshoot time


Full-load, TA=25℃


-

10

ms

a test only be needed when identified inspection or parameters are effected by changing process;

b  design guarantee, do not require test;

c design guarantee, random testing 2pcs from final electric testing products, qualification inspection and quality consistency testing or testing for status change.


Table 3b function characteristics(MI-270N-10-HT-N-M-F)

characteristics

conditions

( Unless otherwisespecified ,-55℃≤Tc≤125℃,VIN=270V±10V)

criteria

Parallel Capacity

Full-load, TA=25℃

Max 8pcs

Using function

ON/OFF voltage is over 2.4V, TA=25℃

No output

ON/OFF voltage is lower than 0.7V or hung in the air, TA=25℃

Normal Output


Table 3c electrical characteristics(MI-270N-10-HT-N-M-FB)

No.

characteristics

Symbol

Condition

( Unless otherwisespecified ,-55℃≤Tc≤125℃,VIN=270V)

Limit value

Unit

min

max

1

Input Transient voltagea/V

Vis

TA=25℃,less 100ms

200

350

V

2

Input under-voltage/V

turn-on voltage

VINL-ONT


VINL-OFF

TA=25℃

185

195

V

Turn-off voltage

TA=25℃

173

183

V

3

Output Voltage

Vo

Full-load

TA=25℃

9.90

10.10

V

Tc=-55℃

TC=100℃

9.75

10.25

4

Output Current

Io

Vin=220V~320V

-

40

A

5

Voltage Regulation

Sv

220V  320V,Full-load

TA=25℃、 Tc=-55℃和 TC=100℃

-

±0.30

%

6

Load Regulation

S1

No-load Full-load

TA=25℃、 Tc=-55℃和 TC=100℃

-

±0.30

%

7

Output voltage regulation range a

VTR

TA=25℃,Full-load

-20

10

%

8

Output ripple voltage

VPP

BW≤20MHz, full-load, peak-peak

TA=25℃、 Tc=-55℃和 TC=100℃

-

520

mV

9

Output over-voltage protection point

VOVP

TA=25℃,design  guarantee

11.25

13.75

V

10

Output current for over-current protection

Iimax

TA=25℃

43.2

52.8

A

11

Output load respond recovery voltage


50%to100%to50% Iomax(0.1A/μs)

TA=25℃

-

6

%Vo

12

Output load respond recovery time


50%to100%to50% Iomax(0.1A/μs)

TA=25℃

-

5

mS

13

Capacitive Load

Co

Full Load, TA=25℃

-

4000

μF

14

Efficiency a

η

Vin=240V, Full-load or half-load, TA=25℃

89

-

%

Vin=280V, Full-load or half-load, TA=25℃

89

-

%

Efficiency

Vin=220V, Full-load or half-load, TA=25℃

87

-

%

Vin=320V, Full-load or half-load, TA=25℃

87

-

%

15

Output Voltage Temperature rate

av

Full-load

-

±0.04

%/℃

16

Input reflect ripple voltage


Full-load, TA=25℃,peak-peak

-

5

V

17

Isolation voltage

Viso

TA=25℃,10s,1mA

Between input and output

1500

-

VDC

18

Isolation Resistance/MΩ

Riso

TA=25℃

500vdc

Between input ground and output ground

100

-

Between Input ground and Metal package

100

-

Between Output ground and Metal package

100

-

19

Over-heat protection

TOTP

Temperature of package

100

125

20

Parallel power distributing precision

PE

Full-load, TA=25℃

-

5

%

21

Parallel power distributing precision a


Full-load, TC=-55℃, TC=100℃

-

5

%

22

Parallel power distributing precision


Half-load, TA=25℃

-

8

%

23

Input supply ripple current a


8-parallel, full-load, single output ripple current peak-peak, TA=25℃

-

2

A

24

Input reflect ripple current a


8-parallel, full-load, single input reflect ripple current peak-peak, TA=25℃

-

800

mA

25

Output Overshoot Amplitude


Full-load, TA=25℃

-

1

%

26

Output Overshoot time


Full-load, TA=25℃

-

10

ms

a test only be needed when identified inspection or parameters are effected by changing process;

b  design guarantee, do not require test;

c  design guarantee, random testing 2pcs from final electric testing products, qualification inspection and quality consistency testing or testing for status change.


table 3d function characteristics(MI-270N-10-HT-N-M-FB)

characteristics

Conditions

( Unless otherwisespecified ,-55℃≤Tc≤125℃,VIN=270V±10V)

criteria

Parallel Capacity

Full-load, TA=25℃

Max 8pcs

Using function

ON/OFF voltage is over 2.4V, TA=25℃

No output

ON/OFF voltage is lower than 0.7V or hung in the air, TA=25℃

Normal  Output


Table 3e electrical characteristics(MI-270N-12-HT-N-M-F)

No.

characteristics

symbol

Conditions

( Unless otherwisespecified ,-55℃≤Tc≤125℃,VIN=270V)

Limit value

Unit

min

max

1

Input Transient voltagea/V

Vis

TA=25℃,less 100ms

200

350

V

2

Input under-voltage/V

turn-on voltage

VINL-ONT


VINL-OFF

TA=25℃

185

195

V

Turn-off voltage

TA=25℃

170

179

V

3

Output Voltage

Vo

Full-load

TA=25℃

11.90

12.10

V

Tc=-55℃

TC=100℃

11.75

12.25

4

Output Current

Io

Vin=220V~320V

-

34

A

5

Voltage Regulation

Sv

220V  320V, Full-load

TA=25℃、 Tc=-55℃和 TC=100℃

-

±0.30

%

6

Load Regulation

S1

No-load Full-load

TA=25℃、 Tc=-55℃和 TC=100℃

-

±0.30

%

7

Output voltage regulation range a

VTR

TA=25℃, Full-load

-20

10

%

8

Output ripple voltage

VPP

BW≤20MHz, full-load, peak-peak


TA=25℃、 Tc=-55℃和 TC=100℃

-

100

mV

9

Output over-voltage protection point

VOVP

TA=25℃,design guarantee

13.25

15.75

V

10

Output current for over-current protection

Iimax

TA=25℃

36

44

A

11

Output load respond recovery voltage


50%to100%to50% Iomax(0.1A/μs)

TA=25℃

-

6

%Vo

12

Output load respond recovery time


50%to100%to50% Iomax(0.1A/μs)

TA=25℃

-

5

mS

13

Capacitive Load

Co

Full Load, TA=25℃

-

4000

μF

14

Efficiency a

η

Vin=240V, Full-load or half-load, TA=25℃

92

-

%

Vin=280V, Full-load or half-load, TA=25℃

92

-

%

Efficiency

Vin=220V, Full-load or half-load, TA=25℃

91

-

%

Vin=320V, Full-load or half-load, TA=25℃

91

-

%

15

Output Voltage Temperature rate

av

Full-load

-

±0.04

%/℃

16

Input reflect ripple voltage


Full-load, TA=25℃,peak-peak

-

5

V

17

Isolation voltage

Viso

TA=25℃,10s,1mA

Between input and output

1500

-

VDC

18

Isolation Resistance

Riso

TA=25℃

500vdc

Between input ground and output ground

100

-

Between Input ground and Metal package

100

-

Between Output ground and Metal package

100

-

19

Over-heat protection

TOTP

Temperature of package

100

110

20

Parallel power distributing precision

PE

Full-load, TA=25℃

-

5

%

21

Parallel power distributing precision a


Full-load, TC=-55℃, TC=100℃

-

5

%

22

Parallel power distributing precision


Half-load, TA=25℃

-

8

%

23

Input supply ripple current a


8-parallel, full-load, single output ripple current peak-peak, TA=25℃

-

2

A

24

Input reflect ripple current a


8-parallel, full-load, single input reflect ripple current peak-peak, TA=25℃

-

800

mA

25

Output Overshoot Amplitude


Full-load, TA=25℃

-

1

%

26

Output Overshoot time


Full-load, TA=25℃

-

10

ms

a test only be needed when identified inspection or parameters are effected by changing process;

b  design guarantee, do not require test;

c design guarantee, random testing 2pcs from final electric testing products, qualification inspection and quality consistency testing or testing for status change.


table 3h function characteristics(MI-270N-12-HT-N-M-F)

characteristics

Conditions

( Unless otherwisespecified ,-55℃≤Tc≤125℃,VIN=270V±10V)

criteria

Parallel Capacity

Full-load, TA=25℃

Max 8pcs

Using function

ON/OFF voltage is over 2.4V, TA=25℃

No output

ON/OFF voltage is lower than 0.7V or hung in the air, TA=25℃

Normal  Output


table 3g electrical characteristic(MI-270N-28-HT-N-M-FB)
No. characteristics Symbol Conditions Limit value Unit
( Unless otherwise specified ,-55℃≤Tc≤125℃,VIN=270V) Min Max
1 Input Transient voltagea/V Vis TA=25℃,less 100ms 200 350 V
2 Input under-voltage/V turn-on voltage VINL-ONT TA=25℃ 185 195 V
VINL-OFF TA=25℃ 173 183 V
Turn-off voltage
3 Output Voltage Vo Full-load TA=25℃ 27.72 28.28 V
Tc=-55℃ 27.6 28.4
TC=100℃
4 Output Current Io Vin=220V~320V - 14.5 A
5 Voltage Regulation Sv 220V  320V, Full-load - ±0.30 %
TA=25℃、 Tc=-55℃和 TC=100℃
6 Load Regulation S1 No-load  Full-load , - ±0.30 %
TA=25℃、 Tc=-55℃和 TC=100℃
7 Output voltage regulation range a VTR TA=25℃, Full-load -20 10 %
8 Output ripple voltage VPP BW≤20MHz, full-load, peak-peak - 460 mV
TA=25℃、 Tc=-55℃和 TC=100℃
9 Output over-voltage protection point VOVP TA=25 31.5 28.5 V
10 Output current for over-current protection Iimax TA=25℃ 16 20.3 A
11 Output load respond recovery voltage 50%to100%to50% Iomax(0.1A/μs) - 6 %Vo
TA=25℃
12 Output load respond recovery time 50%to100%to50% Iomax(0.1A/μs) - 5 mS
TA=25℃
13 Capacitive Load Co Full-load, TA=25℃ - 4000 μF
14 Efficiency a η Vin=240V,Full-load or Half Load, TA=25℃ 89 - %
Vin=280V, Full-load or Half Load , TA=25℃ 89 - %
Efficiency Vin=220V, Full-load or Half Load , TA=25℃ 87 - %
Vin=320V, Full-load or Half Load , TA=25℃ 87 - %
15 Output Voltage Temperature rate av Full-load - ±0.04 %/℃
16 Input reflect ripple voltage Full-load , TA=25℃,peak-peak - 5 V
17 Isolation voltage Viso TA=25℃,10s,1mA 1500 - VDC
Between input and output
18 Isolation Resistance Riso TA=25℃ Between input ground and output ground 100 -
500vdc Between Input ground and Metal package 100 -
Between Output ground and Metal package 100 -
19 Over-heat protection TOTP Temperature of package 100 125
20 Parallel power distributing precision PE Full-load, TA=25℃ - 5 %
21 Parallel power distributing precision a Full-load , TC=-55℃, TC=100℃ - 5 %
22 Parallel power distributing precision

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