SGS Thomson Microelectronics GS-R4840N Datasheet
GS-R4840N
44W NEGATIVE SWITCHINGREGULATOR
Type V
GS-R4840N -43 to -60 V 40 V 1,08 A
in
V
out
I
out
DESCRIPTION
The GS-R4840Nis a negative input, negative output switchingvoltageregulatorthatcanprovideup
to 44W output power without input to outputisolation.
ELECTRICAL CHARACTERISTICS (T
Symbol Parameter Test Conditions Min Typ Max Unit
V
V
V
V
V
I
osc
T
T
Input Voltage Io= 1.08A
i
Input noise
ni
(CCITTP53)
Input Current Vi= -48V Io= 1.08A
l
i
Output Voltage Vi= -43 to -60V
o
Output Ripple
or
Voltage
Output noise
no
(CCITTP53)
Output Current Limit Vi= -48V
Switching Frequency
f
s
η Efficiency V
Operating
op
Temperature Range
Storage Temperature
stg
Range
=25°Cunless otherwise specified)
amb.
Vi= -48V Io=1A
Io= 0 to 1.08A
Vi= -48V Io= 1.08A
Vi= -48V Io=1A
= -48V Io= 1.08A
i
-43 -48 -60 V
1mV
-1 A
-38.5 -40.5 -42.5 V
100 mVpp
1mV
-1.6 A
50 kHz
93 %
0 +70 °C
-20 +85 °C
December 1993 1/2
GS-R4840N
CONNECTION DIAGRAM AND MECHANICAL DATA
Package H.Dimensions in mm.
Note: Pins 1 and 4 are internally connected
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 notauthorizedforuseascriticalcomponents inlife support devices orsystemswithout express
written approval of SGS-THOMSON Microelectronics.
1994 SGS-THOMSON Microelectronics – All Rights Reserved
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2/2
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