OM7612ST [ETC]
1.5 AMP HIGH VOLTAGE NEGATIVE ADJUSTABLE REGULATOR; 1.5 AMP高压负可调稳压
| 型号： | OM7612ST |
| 厂家： | 
ETC |
| 描述： | 1.5 AMP HIGH VOLTAGE NEGATIVE ADJUSTABLE 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 |
OM7612ST
1.5 AMP HIGH VOLTAGE NEGATIVE
ADJUSTABLE REGULATOR
Three Terminal, High Voltage, Precision
Adjustable Negative Voltage Regulator In
Hermetic JEDEC TO-257AA Package
FEATURES
• Similar To Industry Standard LT137AHV
• Adjustable Output Voltage
• Built In Thermal Overload Protection
• Short Circuit Current Limiting
• Available In Isolated and Non-Isolated Package
• Maximum Output Voltage Tolerance Is Guaranteed To ±1%
• Available Hi-Rel Screened
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, these devices can deliver up to 1.5
amps of output current. The unit also features output voltages that can be fixed from
-1.2 volts to -47 volts.
ABSOLUTE MAXIMUM RATINGS @ 25°C
3.3
Power Dissipation (P ) (Internally Limited). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 W
d
Input - Output Voltage Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 V
Operating Junction Temperature Range. . . . . . . . . . . . . . . . . . . . . . . . - 55°C to + 150°C
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 65°C to + 150°C
Lead Temperature (Soldering 10 seconds). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300°C
Thermal Resistance:
qJC (Isolated) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2°C/W
qJC (Non-Isolated) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5°C/W
qJA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42°C/W
Maximum Output Current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5 A
3.3 - 161
4 11 R0
OM7612ST
-55°C TA 125°C, IL = 8mA (unless otherwise specified)
ELECTRICAL CHARACTERISTICS
Parameter
Symbol
Test Conditions
VDIFF = 3.0V, TA = 25°C
VDIFF = 3.0V
Min.
-1.262
-1.28
-1.28
-1.28
-6
Max.
-1.238
-1.22
-1.22
-1.22
6
Unit
Reference Voltage
VREF
•
•
•
V
VDIFF = 50V, TA = 25°C
VDIFF = 50V
Line Regulation
(Note 1)
RLINE
3.0 V VDIFF 50V, TA = 25°C
-20
20
mV
mV
mV
dB
Load Regulation
(Note 1)
RLOAD
VDIFF 50V, 8mA IL 110mA, TA = 25°C
VDIFF = 5V, 8mA IL 1.5A, TA = 25°C
-25
25
-25
25
•
•
-50
50
Thermal Regulation
VRTH
Vin = -14.6V, IL = 1.5A
Pd = 20 Watts, t = 10 ms, TA = 25°C
f = 120 Hz, VOUT = Vref
-5
5
Ripple Rejection
(Note 2)
RN
66
C
Adj = 10 µF, IOUT = 100 mA
Adjustment Pin Current
IAdj
VDIFF = 3.0V
•
•
•
•
•
•
•
•
•
•
100
100
100
5
VDIFF = 40V
µA
µA
VDIFF = 50V
Adjustment Pin
Current Change
³IAdj
VDIFF = 5V, 8mA IOUT 1.5A
3V VDIFF 50V, IL 8mA
-5
-6
6
Miminum Load Current
ILmin
VDIFF = 3.0V, VOUT = -1.4V (forced)
VDIFF = 10V, VOUT = -1.4V (forced)
VDIFF = 40V, VOUT = -1.4V (forced)
VDIFF = 50V, VOUT = -1.4V (forced)
VDIFF = 5V
3
3
mA
5
5
Current Limit
(Note 2)
ICL
1.5
0.2
3.5
1.0
VDIFF = 50V, TA = 25°C
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 - 162
OM7612ST
TYPICAL PERFORMANCE CHARACTERISTICS
LOAD REGULATION
CURRENT LIMIT
0.2
4
TJ = -55°C
TJ = -25°C
TJ = -150°C
0
IL = 0.5A
-0.2
3
-0.4
IL = 1.5A
-0.6
2
VI = -15V
VO = -10V
-0.8
1
-1.0
-1.2
0
-1.4
150
50 75 100 125 150
-50
-25
50
125
0
25
25
75
100
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
IL = 1.5A
2.5
IL = 500mA
65
60
IL = 1.0A
2.0
IL = 200mA
55
50
1.5
45
IL = 20mA
40
1.0
-
25 50 75 100 125 150
-75 -50 -25
0
-50 -25
0
25 50
75 100 125 150
TJ, Junction Temperature (C°)
TJ, Junction Temperature (C°)
TEMPERATURE STABILITY
MINIMUM OPERATING CURRENT
3.3
TJ = -55°C
1.270
1.260
1.8
TJ = 25°C
1.6
TJ = 150°C
1.4
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 - 163
OM7612ST
TYPICAL APPLICATIONS
HIGH STABILITY REGULATOR
DUAL TRACKING SUPPLY ±1.25V TO ±20V
OM7620ST
+VIN
VIN
VOUT
+VOUT
R2*
7V
LM329B
Adj
R1**
100
1%
1µF*
2.2*
µF
+1µF
D1
+1µF
IN4002
Solid
R1
1k
1%
R3
1.5K
1%
Solid
Tantalum
R2
5K
1%
R4
5k
+
R3
5K
Tantalum
10µF
Adj
+
VIN
VOUT
10µF
-VIN
1%
R5**
100
1%
-VOUT
(VOUT
9.08 x 10-3
)
2.2*
µF
OM7612ST
D2
IN4002
1µF*
*R2 =
- 908
Adj
VOUT
-VOUT
-VIN
VIN
OM7612ST
*
Solid Tantalum
** R1 or R2 may be trimmed slightly to improve tracking.
* C is required if regulator is located more than
IN
4 inches from power supply filter. A 1 µF solid
tantalum or 10 µF aluminum electrolytic is
recommended.
IPROG
+
+
R2
CIN*
1.0µF
CO**
R1
120
1.0µF
** C is necessary for stability. A 1 µF solid
O
tantalum or 10 µF aluminum electrolytic is
recommended.
IAdj
VIN
VOUT
-VIN
-VOUT
V
= -1.25 V (1 +R )
2
OM7612ST
OUT
R
1
CONNECTION DIAGRAM
MECHANICAL OUTLINE
.200
.190
Tab
.420
.410
.045
.035
.665
.645
.150
.140
.537
.527
3.3
.430
.410
.038 MAX.
.005
.750
.500
1
2
3
Isolated
Front View
Non-Isolated
Front View
Pin 1 - Adjust
Pin 2 - Input
Pin 3 - Output
Tab - Input
.120 TYP.
.100 TYP.
.035
.025
Pin 1 - Adjust
Pin 2 - Input
Pin 3 - Output
Tab - Isolated
NOTES
• Case is metal/hermetically sealed
• Isolated Tab
205 Crawford Street, Leominster, MA 01453 USA (508) 534-5776 FAX (508) 537-4246
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INFINEON
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