Datasheet GS30T24-15, GS30T24-12 Datasheet (SGS Thomson Microelectronics)

GS25/30T24 Family

25/30 W DC-DC CONVERTER FAMILY

Type V

GS25T24-5 18 to 36 V 5 V 5 A
GS30T24-12 18 to 36 V 12 V 2,5A
GS30T24-15 18 to 36 V 15 V 2 A

in

V

out

I

out

FEATURES

MTBF in excess of 1M hours at +45°C ambient
temperature
Wide input voltage range (18 to 36V)
No external component required
High efficiency(see data)
Non latchingpermanent short-circuitprotection
Overvoltageprotection
Redundantoperation
Remoteoutput voltage sense
RemoteINHIBIT/ENABLE
Soft-start
Minimizedreflected input current
Reverseinput polarity protection
Peakinput overvoltage withstand
No derating over the temperaturerange
500V

minimum isolation between input and

DC

output
PCB or chassismountable

DESCRIPTION

The GS25T24-5, GS30T24-12 and GS30T24-15
are isolated DC-DC converters designed for gen­eral purpose application.

The output power is in the rangeof 25W to 30W.
To ensure very long life, these converters do not
use electrolytic aluminum capacitors or optoelec­tronic feedback systems.

ABSOLUTEMAXIMUMRATINGS

Symbol Parameter Value Unit

V

i

V

ipk

V

ir

T

stg

T

op

December 1993 1/5

DC Input Voltage
Input Transient Overvoltage (t ≤ 1sec.)
Input Reverse Voltage
Storage Temperature Range
Operating Temperature Range

17 to 38V V

45 V
50 V

-55 to +105 °C

-25 to +71 °C

GS25/30T24 FAMILY

ELECTRICALCHARACTERISTICS (T

Symbol

Input Voltage Full Load

V

i

Input Current GS25T24-5

I

i

Input Reflected

I

ir

Current

I

V

V

inhh

l

inh
V

V

δV

δV

V

δVo

Tc

Input Short-circuit

isc

Current

Input Quiescent

l

iq

Current
Low Inhibit Voltage Vi= 24V

inhl

High Inhibit Voltage Vi= 24V
Input Inhibit Current Vi= 24V
Output Voltage

o

Output Ripple and

or

Noise Voltage
Line Regulation

o

Load Regulation

o

Output Overvoltage

oov

Protection

Remote Sense per Leg Vi= 18V
Temperature

Coefficient

Parameter Test Conditions Min Typ Max Unit

=25°C unlessotherwise specified)

amb

Full Load 1370 mA

GS30T24-12
GS30T24-15

Vi= 24V
GS25T24-5

Vi= 24V
GS30T24-12

Vi= 24V
GS30T24-15

Vi= 24V
Vi= 24V

Converter OFF

GS25T24-5
Vi= 24V

GS30T24-12
Vi= 24V

GS30T24-15
Vi= 24V

Vi= 24V
Full Load

Vi= 18 to 36V
Full Load

Vi= 24V
Full Load to No Load

GS25T24-5
Vi= 24V

GS30T24-12
Vi= 24V

GS30T24-15
Vi= 24V

Vi= 24V Full Load
Operating Temperature Range

Full Load 1600

Full Load 40 mApp

Full Load 1.2 V
Full Load
Full Load 1 mA

Full Load

Full Load

Full Load

Full Load 6.8 V

Full Load 15

Full Load 18

18 24 36 V

360 mA

220

200

5mA

1.8

(open)

4.95 5.00 5.05

11.88 12.00 12.12

14.85 15.00 15.15

10 mVpp

±0.001 %

±0.05 %

0.5 V

+0.02 %/°C

V

V

2/5

GS25/30T24 FAMILY

ELECTRICALCHARACTERISTICS (T

Symbol

Output Current

I

o

I

osck

t

V

R

R

Output Current Limit

Soft-start Time Vi= 24V

ss

Transient Recovery

t

rt

Time
Isolation Voltage

is

Switching Frequency

f

s

Efficiency

η

Isolation Resistance

is

Thermal Resistance

thc

Case to Ambient

Parameter Test Conditions Min Typ Max Unit

=25°C unlessotherwise specified)(cont’d)

amb

GS25T24-5
Vi=18to36V

GS30T24-12
Vi=18to36V

GS30T24-15
Vi=18to36V

GS25T24-5
Vi= 24V

GS30T24-12
Vi= 24V

GS30T24-15
Vi= 24V

Vi= 24V
Step Load Change δIo = 25%

GS25T24-5
Vi= 24V

GS30T24-12
Vi= 24V

GS30T24-15
Vi= 24V

Overload

Overload

Overload
Full Load 30 ms

Full Load

Full Load

Full Load

05A

0 2.5

02

500 Vdc

75 78 %

79 82

80 83

10

75 µs

150 kHz

9

4 °C/W

5.5 A

2.75

2.2

Ω

3/5

GS25/30T24 FAMILY

CONNECTIONDIAGRAM AND MECHANICAL DATA

PackageF. Dimensionsin mm. (inches)

PIN DESCRIPTION

Pin Function Description

-IN Negative input voltage.

1

Positive input voltage. Unregulated input voltage (typically 24V) must be applied between
pin 1-2. The input section of the DC-DC converter is protected against reverse polarity by a
series diode. No external fuse is required. Input is filtered by a Pi network.

Logically compatible with CMOS or open collector TTL. The converter is ON (Enable)
when the voltage applied to this pin with reference to pin 1 is higher than 1.8V.The
converter is OFF (Inhibit) for a control voltage lower than 1.2V.When the pin is
unconnected the converter is ON (Enable).

Senses the remote load high side. Tobe connected topin 6 when remote sense is not
used.

4/5

+IN

2

ON/OFF

3

+ SENSE

4

-SENSE Senses the remote load return. Tobe connected to pin 7 when remote sense is not used.

5

+ OUT Output voltage.

6

-OUT Output voltage return.

7

GS25/30T24 FAMILY

Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from itsuse. No
license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specification mentioned
in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.
SGS-THOMSON Microelectronicsproducts are notauthorized for use as critical components in life support devices or systems without express
written approval of SGS-THOMSON Microelectronics.

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