Ehhd036a0f series: dc-dc converter power module, Datasheet, 18 to 75v – GE Industrial Solutions EHHD036A0F HAMMERHEAD Series User Manual

Page 5: Input; 3.3v, Characteristic curves

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GE

Datasheet

EHHD036A0F Series: DC-DC Converter Power Module

18 to 75V

dc

Input; 3.3V

dc

, 36A, 120W Output

February 28, 2014

©2014 General Electric Corporation. All rights reserved.

Page 5

Characteristic Curves

The following figures provide typical characteristics for the EHHD036A0F (3.3V, 36A) at 25

O

C. The figures are identical for either

positive or negative remote On/Off logic.

EFFICIEN

C

Y,

η

(%)

O

U

TP

UT

C

U

RRENT

O

U

TPU

T

VO

LT

AG

E

Io(

A)

(1

0A

/di

v)

V

O

(V

) (10

0mV

/d

iv

)

OUTPUT CURRENT, I

O

(A)

TIME, t (200µs/div)

Figure 1. Converter Efficiency versus Output Current.

Figure 4. Transient Response to 0.1A/µS Dynamic Load Change
from 50% to 75% to 50% of full load, Vin=48V

OUTPUT

V

O

LTAGE

V

O

(V

) (50m

V/

di

v)

O

U

TP

UT

V

O

LT

AG

E

On/

O

ff

V

O

LT

AG

E

V

O

(V

) (1V/

di

v)

V

On

/Off

(V

) (2

V/

di

v)

TIME, t (2

μs/div)

TIME, t (10ms/div)

Figure 2. Typical output ripple and noise (I

o

= I

o,max

).

Figure 5. Typical Start-up Using Remote On/Off, negative logic
version shown (V

IN

= 48V, I

o

= I

o,max

).

OUT

PU

T CUR

RE

N

T

OU

TP

U

T V

O

LT

AGE

Io

(A

) (10

A/d

iv)

V

O

(V

) (

10

0m

V/

di

v)

O

U

TPU

T

VO

LT

AG

E

IN

PU

T

VO

LT

AG

E

V

O

(V

) (

1V

/d

iv

)

V

IN

(V

) (20

V/div)

TIME, t (200µs/div)

TIME, t (10ms/div)

Figure 3. Transient Response to 0.1A/µS

Dynamic Load

Change from 50% to 75% to 50% of full load, Vin=24V.

Figure 6. Typical Start-up Using Input Voltage (V

IN

= 48V, I

o

=

I

o,max

).

18Vin

24Vin

48Vin

75Vin

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