GS15T48-5

15W DC-DC CONVERTER

December 1993

1/3

Type

GS15T48-5

40 to 60 V

5 V

3 A

DESCRIPTION

The GS15T48-5 is a 15W DC-DC converter de-

signed to provide a 5V/3A isolated output from a

48V input in a metal package.

High frequency forward switching configuration en-

sures high efficiency (80% typ.); input filter mini-

mizes reflected input current and continuous

short-circuit protection is provided.

The integral heatsinkallows a large power handling

capability and it features also an effective shielding

to minimize EMI.

°C unless otherwise specified)

Symbol

Parameter

Test Conditions

Min

Typ

Max

Unit

Vi

Input Voltage

Vo =5V

Io = 0 to 3A

40

48

60

V

li

Input Current

Vi = 48V

Io = 3A

400

mA

lir

Input Reflected

Current

Vi = 48V

Vo =5V Io = 3A

50

80

mApp

liq

Input Quiescent

Current

Vi = 48V

Vo =5V Io =0A

20

mA

Vo

Output Voltage

Vi = 40 to 60V Io = 0 to 3A

4.75

5

5.25

V

δVo

Line Regulation

Vi =40 to 60V Io =3A

10

20

mV

δVo

Load Regulation

Vi = 48V

Io = 0 to 3A

10

20

mV

Vor

Output Ripple Voltage

Vi = 48V

Io = 3A

20

50

mVpp

Io

Output Current

Vi = 40 to 60V

0

3

A

Iosc

Output Short-circuit

Current

Vi = 48V

5

6

A

Vis

Isolation Voltage

750

Vdc

fs

Switching Frequency

Vi =40 to 60V Io = 0 to 3A

250

kHz

η

Efficiency

Vi = 48V

Io =3A

80

%

Rthc

Thermal Resistance

Case to Ambient

Tamb =25

°CVi = 48V Io =3A

8

°C/W

Tcmax

Maximum Case

Temperature

+85

°C

Tstg

Storage Temperature

Range

-40

+105

°C