GS-R4840NV STMicroelectronics, GS-R4840NV Datasheet

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GS-R4840NV

Manufacturer Part Number
GS-R4840NV
Description
Manufacturer
STMicroelectronics
Datasheet
FEATURES
December 1993
DESCRIPTION
The GS-R4840NV is a negative input, negative
output switching voltage regulator that provides up
to 36W output power without input-output isolation.
ELECTRICAL CHARACTERISTICS (T
GS-R4840NV
Symbol
Digital input for voltage selection
Short-circuit protection
Overvoltage protection
Thermal protection
Softstart
Fault signal indication output
High efficiency (>80%)
V oov
T cop
T stg
I osc
V or
R th
V o
V ir
I ol
V i
I o
f s
Type
Input Voltage
Input Ripple Voltage
Output Voltage
Output Ripple
Voltage
Output Overvoltage
Protection
Output Current
Current Limit
Output Average
Short Circ. Current
Switching Frequency
Efficiency
Thermal Resistance
Operating Case
Temperature Range
Storage
Temperature Range
-40 to -60 V -22 to -60 V
Parameter
V
in
36 W NEGATIVE SWITCHING REGULATOR
V
out
V o = -22 to -60V
I o = -600mA
V i = -40 to -60V
I o = -10 to -600mA
V i = -40 to -60V
V o = -22 to -60V
V i = -40 to -60V
Overload Condition
V i = -40 to -60V
V i = -48V
V o = -48V
Case to Ambient
V o = -22 to -60V
I o = -10 to -600mA
V i = -40 to -60V
V i = -40 to -60V
amb
-600 mA
I
= 25 C unless otherwise specified)
out
Test Conditions
I o = -600mA
I o = -10 to -600mA
I o = -600mA
The output voltage is programmable by input logic
signals that allow 64 steps (6 bit) of regulated
output, from -22 to -60V.
Vo+5%
Min
-40
-22
-10
-20
80
0
GS-R4840NV
Typ
100
-48
82
4
4
Vo+10%
+105
Max
-600
-900
+85
-60
-60
-80
20
10
mVpp
mVpp
Unit
kHz
C/W
mA
mA
mA
%
V
V
V
C
C
1/3

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GS-R4840NV Summary of contents

Page 1

... Digital input for voltage selection Short-circuit protection Overvoltage protection Thermal protection Softstart Fault signal indication output High efficiency (>80%) DESCRIPTION The GS-R4840NV is a negative input, negative output switching voltage regulator that provides up to 36W output power without input-output isolation. ELECTRICAL CHARACTERISTICS (T Symbol Parameter Input Voltage V i ...

Page 2

... GS-R4840NV CONNECTION DIAGRAM AND MECHANICAL DATA Package F. Dimensions in mm. (inches) PIN DESCRIPTION Pin Function -Vin Negative input voltage. 1 Remote Inhibit/Enable logicall y compatible with CMOS or open collector TTL. The Inhibit/ 2 converter is OFF (Inhibit) when this pin is unconnected or the voltage applied is in the range (referred to GND) ...

Page 3

... USER NOTES Digital Information The GS-R4840NV accepts 6 bit binary at the data inputs DB0 to DB5. Data are transferred when CS is low and during the rising edge of WR signal. Figure 1 - Signals Timing. 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 its use ...

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