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Datasheet GS-R415 PDF ( 特性, スペック, ピン接続図 )

部品番号 GS-R415
部品説明 20W TO 140W STEP-DOWN SWITCHING REGULATOR FAMILY
メーカ STMicroelectronics
ロゴ STMicroelectronics ロゴ 
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GS-R415 Datasheet, GS-R415 PDF,ピン配置, 機能
GS-R400 Family
20W TO 140W STEP-DOWN
SWITCHING REGULATOR FAMILY
FEATURES
MTBF in excess of 200,000 hours
4A max output current
46V max input voltage
4V max drop-out voltage
Soft start
Remote logic inhibit/enable
Remote output voltage sense
Non-latching overload and short circuit protection
Crow-bar output overvoltage protection
DESCRIPTION
The GS-R400 series is a versatile family of high
current, high voltage step-down switching voltage
regulators.
The integral heatsink allows a large power handling
capability and it provides also an effective shielding
to minimize EMI.
SELECTION CHART
Type
Ordering
Number
GS-R405
GS-R412
GS-R415
GS-R424
GS-R405S
GS-R400V
Output
Voltage
(V)
Input
Voltage
(V)
5.1 ± 2%
12.0 ± 4%
15.0 ± 4%
24.0 ± 4%
5.1 ± 2%
5.1 to 40
9 to 46
16 to 46
19 to 46
28 to 46
9 to 46
Vo+4 to 46
Output
Ripple
(mVpp)
25
50
65
100
25
25 to 100
Regulation
Line Load
(mV/V) (mV/A)
2 20
5 40
5 60
6 90
2 20
6 20 to 90
GS-R400VB 5.1 to 40 Vo+4 to 46 25 to 100
6 20 to 90
Note: The line regulation is measured at Iout=1A
The load regulation is measured at Vin=Vo+8V and Iout=1 to 3A
For VO 36V and Io = 4A an external heatsink or forced ventilation are required.
ABSOLUTE MAXIMUM RATINGS
Efficiency
(%)
Notes
70
80
85
90
70
70 to 90
70 to 90
Fixed output voltage
"
"
"
Reset output
Progr. output voltage
Progr. output voltage and
current. Frequency synchr.
Symbol
Parameter
Vi DC Input Voltage
Irt* Reset Output Sink Current
Tstg Storage Temperature Range
Tcop Operating Case Temperature Range
* GS-R405S only
Value
48
20
– 40 to +105
– 20 to +85
Unit
V
mA
°C
°C
June 1994
1/5

1 Page



GS-R415 pdf, ピン配列
GS-R400 FAMILY
ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise specified)
Symbol
Parameter
Vo/T
Io
IoL
Iisc
fs
SVR
Temperature Stability
Output Current
Current Limit
Average Input Current
Switching Frequency
Supply Voltage Rejection
Vr
tss
Vinhl
Vinhh
Iinhh
tcb
Vrh*
Ripple Voltage
Soft Start Time
Low Inhibit Voltage
High Inhibit Voltage
High Inhibit Input Current
Crow-bar Delay Time
Reset High Level
Vrl* Reset Low Level
trd* Reset Delay Time
Vcth Crowbar Intervention Threshold
Vo Total Remote
Sense Compensation
Rth Thermal Resistance
* GS-R405S only
Test Conditions
Vi = Vo+8V Io = 1A
Vi = Vo+8V
Vi = Vo+8V
Vi = 46V Output Shorted
Io = 1A
fo = 100Hz Io =1A
Io = 2A
Vi = Vo+8V
Vinh = 5V
Irl = 5mA
Irl = 10mA
Case to ambient
Min
0.2
2
Typ
0.2/1.6
5
0.1
100
4/12
25/150
10/35
5
5
100
Vo1.25
Max
4
8
0.2
0.8
5.5
500
0.2
0.4
500
5
Unit
mv/°C
A
A
A
KHz
mV/V
mVpp
ms
V
V
µA
µs
V
V
ms
V
mV
°C/W
USER NOTES
Input Voltage
The recommended operating maximum DC input
voltage is 46V inclusive of the ripple voltage.
Remote Sensing
The remote voltage sense compensation range is
for a total drop of 500mV equally shared between
the load connecting wires. It is a good practice to
shield the sensing wires to avoid oscillation.
Each sense input must be connected to its compan-
ion output power pin when the remote sense capa-
bility is not used (see fig. 1).
Case Grounding
The module case is isolated from the electrical
circuit of the switching regulator. It can be grounded
using the 4 corner pins.
The PCB area below the module can be used as an
effective sixth side shield against EMI.
Thermal Characteristics
The case-to-ambient thermal resistance of all the
GS-R400 modules is about 5°C/W. This produces
a 50°C temperature increase of the module surface
for 10W of internal power dissipation.
Depending on the ambient temperature and/or on
the power dissipation, an additional heatsink or
forced ventilation may be required.
Input Impedance
The module has an internal capacitor connected
between the input pins in order to assure PWM
stability. This capacitor cannot handle large values
of high frequency ripple current and it can be per-
manently damaged if the primary energy source
impedance is not adequate. The use of an external
low ESR, high ripple current capacitor located as
close the module as possible is recommended.
Suitable capacitors should have a RMS current
capability of 2.5ARMS with a working voltage of 50
VDC and an ESR of 0,1at 100 kHz. When space
3/5


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