GS-R4840NV Datasheet, PDF (1/3 Pages) STMicroelectronics – 36 W NEGATIVE SWITCHING REGULATOR

GS-R4840NV
36 W NEGATIVE SWITCHING REGULATOR
Type
GS-R4840NV
V_in
V_out
I_out
-40 to -60 V -22 to -60 V -600 mA
FEATURES
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.
The output voltage is programmable by input logic
signals that allow 64 steps (6 bit) of regulated
output, from -22 to -60V.
ELECTRICAL CHARACTERISTICS (T_amb = 25°C unless otherwise specified)
Symbol
Parameter
Vi Input Voltage
Vir
Vo
Vor
Voov
Io
Input Ripple Voltage
Output Voltage
Output Ripple
Voltage
Output Overvoltage
Protection
Output Current
Iol Current Limit
Iosc Output Average
Short Circ. Current
fs
Switching Frequency
η
Efficiency
Rth
Tcop
Tstg
Thermal Resistance
Operating Case
Temperature Range
Storage
Temperature Range
Test Conditions
Min
Vo = -22 to -60V
Io = -10 to -600mA
Vi = -40 to -60V Io = -600mA
Vi = -40 to -60V Io = -10 to -600mA
Vo = -22 to -60V
Io = -600mA
Vi = -40 to -60V
Io = -10 to -600mA
Vi = -40 to -60V
Vo = -22 to -60V
Vi = -40 to -60V
Overload Condition
Vi = -40 to -60V
-40
-22
Vo+5%
-10
Typ Max Unit
-48
-60
V
20 mVpp
-60
V
4
10 mVpp
Vo+10% V
-600 mA
-900 mA
-80
mA
Vi = -48V
Vo = -48V
Io = -600mA
Case to Ambient
100
kHz
80
82
%
4
°C/W
0
+85
°C
-20
+105
°C
December 1993
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