12v picotlynx, 3a: non-isolated dc-dc power modules, Data sheet – GE Industrial Solutions 12V PicoTLynx 3A User Manual

Page 7: Characteristic curves

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GE

Data Sheet

12V PicoTLynx

TM

3A: Non-Isolated DC-DC Power Modules

4.5Vdc –14Vdc input; 0.59Vdc to 5.5Vdc output; 3A Output Current

May 2, 2013

©2013 General Electric Company. All rights reserved.

Page 7

Characteristic Curves

The following figures provide typical characteristics for the 12V PicoTLynx

TM

3A at 1.2Vo and at 25

o

C.

EFFICIE

N

C

Y,

η

(%

)

65

70

75

80

85

90

0

0.5

1

1.5

2

2.5

3

Vin=14V

Vin=12V

Vin=4.5V

OUT

PUT

CURR

ENT,

Io

(A)

1

2

3

4

55

65

75

85

95

105

Standard Part

(85°C)

Ruggedized (D)

Part (105°C)

NC

0.5m/s

(100LFM)

1m/s

(200LFM)

OUTPUT CURRENT, I

O

(A)

AMBIENT TEMPERATURE, T

A

O

C

Figure 7. Converter Efficiency versus Output Current.

Figure 8. Derating Output Current versus Ambient

Temperature and Airflow.

OU

TP

U

T V

O

LT

AG

E

V

O

(V

) (10

m

V/di

v)

OUT

PU

T CURRE

NT,

OU

TP

U

T V

O

LT

AGE

I

O

(A

)

(1

Ad

iv

)

V

O

(V)

(1

00m

V/

di

v)

TIME, t (1

μs/div) TIME,

t

(20

μs /div)

Figure 9. Typical output ripple and noise (V

IN

= 12V, I

o

= I

o,max

).

Figure 10. Transient Response to Dynamic Load Change from
0% to 50% to 0%.

IO

N

/O

FF VOLTAG

E

OUT

PU

T VOLTAG

E

V

ON

/O

FF

(V) (5V/

di

v)

V

O

(V)

(5

00mV

/div)

I

N

PU

T V

O

LT

AG

E

O

U

TPU

T V

O

LT

AG

E

V

IN

(V

) (

5V

/di

v)

V

O

(V)

(5

00mV

/div)

TIME, t (2ms/div)

TIME, t (2ms/div)

Figure 11. Typical Start-up Using On/Off Voltage (I

o

= I

o,max

).

Figure 12. Typical Start-up Using Input Voltage (V

IN

= 12V, I

o

=

I

o,max

).

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