OM7603ST [ETC]
Hi-Rel Adjustable Voltage 3-Terminal Negative Regulator ; 高可靠性可调电压三端负稳压器\n
| 型号： | OM7603ST |
| 厂家： | 
ETC |
| 描述： | Hi-Rel Adjustable Voltage 3-Terminal Negative Regulator
|
| 文件： | 总4页 (文件大小：38K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
OM7603ST
ISOLATED HERMETIC TO-257AA
ADJUSTABLE VOLTAGE REGULATOR
Three Terminal, Adjustable Voltage, 1.5 Amp
Precision Negative Regulator In Hermetic
JEDEC TO-257AA Package
FEATURES
• Isolated Hermetic Package, JEDEC TO-257AA Outline
• Adjustable Output Voltage
• Eliminates Stocking Fixed Voltages
• Built-In Thermal Overload Protection
• Short Circuit Current Limiting
• Product Is Available Screened To MIL-STD -883
• Similar To Industry Standard P/N LM137
DESCRIPTION
This three terminal negative regulator is supplied in a hermetically sealed metal
package whose outline is similar to the industry standard TO-220 plastic package. All
protective features are designed into the circuit, including thermal shutdown, current
limiting and safe-area control. With heat sinking, they can deliver over 1.0 amp of
output current. This unit features output voltages that can be trimmed using external
resistors, from -1.2 volts to -37 volts.
ABSOLUTE MAXIMUM RATINGS @ 25°C
Input-Output Voltage Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40V
Operating Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . -55°C to +150°C
Storage Temperature Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65° to +150°C
Typical Power/Thermal Characteristics:
Rated Power @ 25°C
TC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17.5W
TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3W
Thermal Resistance
3.3
qJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5°C/W
qJA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42°C/W
Note: This device is also available in a non-isolated JEDEC TO-257AA package.
Use part number OM7603NT for non-isolated unit.
4 11 R4
Supersedes 1 07 R3
3.3 - 137
OM7603ST
ELECTRICAL CHARACTERISTICS -55°C TA 125°C, IL = 8mA (unless otherwise specified)
Parameter
Symbol
Test Conditions
VDIFF = 3.0V, TA = 25°C
VDIFF = 3.0V
Min.
-1.262
-1.280
-1.280
-4.5
Max.
-1.238
-1.220
-1.220
4.5
Unit
Reference Voltage
VREF
•
•
V
VDIFF = 40V
Line Regulation
(Note 1)
RLINE
3.0 V VDIFF 40V, TA = 25°C
3.0V VDIFF 40V
•
•
-13.8
-25
13.8
25
mV
mV
Load Regulation
(Note 1)
RLOAD
VDIFF = 5V, 8mA IL 1.5A
VDIFF = 12V, 8mA IL 1.5A, TA = 25°C
VDIFF 40V, 8mA IL 1.5A, TA = 25°C
VDIFF = 40V, 8mA IL 1.5A
Vin = -14.6V, IL = 1.5A
-25
25
-25
25
•
•
-50
50
Thermal Regulation
VRTH
-5
5
mV
dB
Pd = 20 Watts, t = 10 ms, TA = 25°C
f = 120 Hz, Vout = Vref
Ripple Rejection
(Note 2)
RN
66
CAdj = 10 µF, Iout = 100 mA
Adjustment Pin Current
IAdj
VDIFF = 3.0V
•
•
100
100
VDIFF = 40V
µA
µA
µA
mA
Adjustment Pin
Current Change
³IAdj
(line)
³IAdj
3V VDIFF 40V
•
-5
-5
5
(load)
ILmin
VDIFF = 5V, 8mA IL 1.5A
VDIFF = 3.0V, Vout = -1.4V (forced)
VDIFF = 10V, Vout = -1.4V (forced)
VDIFF = 40V, Vout = -1.4V (forced)
VDIFF 5V
•
•
•
•
•
5
Miminum Load Current
3.0
3.0
5.0
3.5
1.2
Current Limit
(Note 2)
ICL
1.5
VDIFF = 40V, TA = 25°C
0.24
A
Notes:
1. Load and Line Regulation are specified at a constant junction temperature. Pulse testing with low duty cycle is used.
Changes in output voltage due to heating effects must be taken into account separately.
2. If not tested, shall be guaranteed to the specified limits.
3. The • denotes the specifications which apply over the full operating temperature range.
3.3
3.3 - 138
OM7603ST
TYPICAL PERFORMANCE APPLICATIONS
LOAD REGULATION
CURRENT LIMIT
0.2
4
4
T
T
T
= -55°C
= -25°C
= -150°C
J
J
J
0
I
= 0.5A
L
-0.2
3
-0.4
I
= 1.5A
-0.6
2
L
V = -15V
I
-0.8
V
= -10V
O
1
-1.0
-1.2
0
-1.4
150
50 75 100 125 150
25
0
10
20
30
40
-75-50 -25
0
TJ, Junction Temperature (C°)
VI - VO, Input - Output Voltage Differential (Vdc)
ADJUSTMENT PIN CURRENT
DROPOUT VOLTAGE
80
3.0
75
VO = -5V ³VO = 100mV
70
I
= 1.5A
I
L
2.5
I
= 500mA
L
65
60
= 1.0A
L
2.0
I
= 200mA
55
L
50
1.5
45
I
= 20mA
L
40
1.0
-5
-25
0
150
25 50 75 100 125 150
-75 -50 -25
0
-50 -25
0
75 100 125 150
25 50
TJ, Junction Temperature (C°)
TJ, Junction Temperature (C°)
TEMPERATURE STABILITY
MINIMUM OPERATING CURRENT
T
= -55°C
1.270
1.260
J
3.3
1.8
1.6
1.4
T
T
= 25°C
J
J
= 150°C
1.2
1.0
0.8
0.6
0.4
1.250
1.240
1.230
0.2
0
-75 -50 -25
0
25 50 75 100 125 150
0
10
20
30
40
TJ, Junction Temperature (C°)
VI - VO, Input - Output Voltage Differential (Vdc
)
3.3 - 139
OM7603ST
TYPICAL APPLICATIONS
HIGH STABILITY REGULATOR
DUAL TRACKING SUPPLY ±1.25V TO ±20V
OM7602ST
+V
V
V
+V
OU
I
IN
OUT
R2*
7V
Adj
LM329B
+
+
2.2*
µF
R1**
100
1%
1µF*
+1µF
D1
+1µF
IN4002
Solid
R1
1k
1%
R3
1.5K
1%
Solid
Tantalum
R2
5K
1%
R4
5k
+
R3
5K
Tantalum
10µF
Adj
+
V
V
OUT
10µF
-V
IN
IN
1%
-V
OUT
+
2.2*
µF
(V
)
+
R5**
100
1%
OM7603ST
Out
9.08 x 10-3
D2
IN4002
1µF*
*R2 =
- 908
-
Adj
V
-V
V
-V
OUT
IN
OUT
OM7603ST
IN
*
Solid Tantalum
** R1 or R5 may be trimmed slightly to improve tracking.
STANDARD APPLICATION
*
C
is required if regulator is located more than 4 inches
IN
I
from power supply filter. A 1µF solid tantalum or 10µF
aluminum electrolytic is recommended.
PRO
+
+
R2
C
*
1.0µF
C *
O
** C is necessary for stability. A 1µF solid tantalum or
O
IN
R1
120
1.0µF
10µF aluminum electrolytic is recommended.
R2
R1
V
V
= -1.25V (1 +
= -1.25V (1 +
)
OUT
OUT
I
Ad
V
V
I
OU
-V
-V
IN
OUT
OM7603ST
MECHANICAL OUTLINE
PIN CONNECTION
.200
.190
.420
.410
.045
.035
Tab
.665
.645
.150
.140
.537
.527
3.3
.430
.410
.038 MAX.
.005
.750
.500
1
2
3
.120 TYP.
.100 TYP.
.035
.025
ISOLATED
NON-ISOLATED
Front View
Front View
Pin 1: Adjust
Pin 2: Input
Pin 3: Output
Pin 1: Adjust
Pin 2: Input
Pin 3: Output
Tab: Input
NOTES
•
Case is metal/hermetically sealed
•
Isolated Tab
Tab: Isolated
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