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Электронный компонент: OM7611ST

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3.3 - 153
3.3
Three Terminal, Adjustable Voltage, 3.0 Amp
Precision Negative Regulators In Hermetic
JEDEC TO-257AA Package
4 11 R3
Supersedes 1 07 R2
ISOLATED HERMETIC TO-257AA ADJUSTABLE
VOLTAGE REGULATORS
FEATURES
Isolated Hermetic Package, JEDEC TO-257AA Outline
Reference Voltage Set Internally to 2%
Built-In Thermal Overload Protection
Short Circuit Current Limiting
Pin Out Identical To Plastic TO-220
Product Is Available Screened To MIL-STD-883
DESCRIPTION
These three terminal negative regulators are 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 3.0 amps of
output current. These units feature 2% initial voltage tolerance, with 1.0% load
regulation and .015% line regulation.
ABSOLUTE MAXIMUM RATINGS
@ 25C
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -35V
Operating Junction Temperature Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55C to +150C
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65 to +150C
Typical Power/Thermal Characteristics:
Rated Power @ 25C
T
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28W
T
A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3W
Thermal Resistance
q
JC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2C/W
q
JA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42C/W
OM7611ST
3.3 - 154
3.3
OM7611ST
ELECTRICAL CHARACTERISTICS
-55C T
A
+125C (unless otherwise specified)
Parameter
Symbol
Test Conditions
Min.
Max.
Unit
Reference Voltage
V
REF
V
IN
- V
OUT
OE
= 5 V, I
OUT
= 5 mA, T
A
= 25 C
-1.238
-1.262
V
3 V V
IN
- V
OUT
OE
35 V
-1.215
-1.285
Line Regulation
V
OUT
3 V V
IN
- V
OUT
OE
35 V
0.015
%/V
(Note 1)
V
IN
0.04
Load Regulation
V
OUT
V
OUT
OE
5 V, T
A
= 25 C
50
mV
(Note 1)
I
OUT
10 mA I
OUT
I
MAX.
75
V
OUT
OE
5.0 V
1.0
%
10 mA I
OUT
I
MAX.
1.5
Thermal Regulation
-
30 ms pulse, T
A
= 25 C
0.02
%/W
Ripple Rejection
V
IN
V
OUT
OE
= -10 V, f = 120 Hz, C
Adj
= 0
56
dB
(Note 2)
V
REF
53
V
OUT
OE
= -10 V, f = 120 Hz, C
Adj
= 10 F
70
dB
60
Adjust Pin Current
I
Adj
V
DIFF
= 35 V, I
L
= 10 mA
100
A
Adjust Pin Current Change
I
Adj
10 mA I
OUT
I
MAX.
2.0
A
3 V V
IN
- V
OUT
OE
35 V
5.0
Minimum Load Current
I
Min
V
IN
- V
OUT
OE
35 V
5.0
mA
V
IN
- V
OUT
OE
10 V
3.0
Current Limit
I
Lim
V
IN
- V
OUT
OE
10 V
3.0
6.0
A
3.0
V
IN
- V
OUT
OE
= 35 V
0.5
2.5
A
0.5
Temperature Stability
V
OUT
-55 C T
J
+125 C
1.5
%
(Note 2)
T
Long Term Stability
V
OUT
T
A
= +125 C, t = 1000 hrs
1.0
%
(Note 2)
T
Notes:
1. Line and Load Regulation are measured at a constant junction temperature using a low duty cycle pulse technique.
Although power dissipation is internally limited, regulation is guaranteed up to the maxim
um power dissipation of 30 W.
Power dissipation is determined by the input/output differential voltage and the output curren
t. Guaranteed maximum
power dissipation will not be available over the full input/output voltage range.
2. Guaranteed by design, characterization or correlation to other tested parameters.
3. The denotes the specifications which apply over the full operating temperature range.
3.3 - 155
3.3
OM7611ST
TYPICAL PERFORMANCE CHARACTERISTICS
Input Voltage
Change(V)
Output Voltage
Deviation (V)
0.8
0.6
0.4
0.2
0
-0.2
-0.4
0
-0.5
-1.0
0
10
20
30
40
Time (S)
Line Transient Response
Reference Voltage (V)
1.270
1.260
1.250
1.240
1.230
-75 -50 -25 0 25 50 75 100125150
Temperature (C)
Temperature Stability
Ripple Rejection (dB)
100
80
60
40
20
0
10
100
1k
10k 100k 1M
Frequency (Hz)
Ripple Rejection
Output Current (A)
5
4
3
2
1
0
0
5
10 15 20 25 30 35
Input-Output Differential (V)
Guaranteed Minimum Output Current
Load
Current (A)
Output Voltage
Deviation (V)
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
0
-0.5
-1.0
-1.5
0
10
20
30
40
Time (S)
Load Transient Response
Current (mA)
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0
10
20
30
40
Input-Output Differential (V)
Minimum Load Current
Ripple Rejection (dB)
100
80
60
40
20
0
0.01
0.1
1
10
Output Current (A)
Ripple Rejection
Adjustment Current (A)
80
75
70
65
60
55
50
-75 -50 -25 0 25 50 75 100 125 150
Temperature (C)
Adjustment Current
Output Impedance ()
101
100
10-1
10-2
10-3
10
100
1k
10k 100k 1M
Frequency (Hz)
Output Impedance
Input-Output Differential (V)
2.8
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
0.5 1.0 1.5 2.0 2.5 3.0
Output Current (A)
Dropout Voltage
Ripple Rejection (dB)
100
80
60
40
20
0
0
-10
-20
-30
-40
Output Voltage (V)
Ripple Rejection
Output Voltage
Deviation (%)
0.8
0.4
0
-0.4
-0.8
0
0.8
1.6
2.4
3.2
4.0
Output Current (A)
Load Regulation*
T
J
= -55C
T
J
= -25C
T
J
= -150C
T
J
= -55C
T
J
= 25C
T
J
= 150C
C
ADJ
= 0
C
ADJ
= 0
V
IN
= -15 V
V
OUT
= -10 V
V
IN
= -15V
V
OUT
= -10V
I
L
= 500mA
T
J
= 25C
C
L
= 1F
V
OUT
= -10V
I
L
= 50mA
T
J
= 25C
C
L
= 1F
V
IN
= -15V
V
OUT
= -10V
I
L
= 50mA
T
J
= 25C
C
L
= 1F
C
ADJ
= 10F
f = 120Hz, T
J
= 25C
V
IN
= -15 V
V
OUT
= -10 V
I
L
= 500mA, T
J
= 25C
V
IN
- V
OUT
= 5 V
I
L
= 500 mA
f = 120Hz, T
J
= 25C
C
ADJ
= 10F
C
ADJ
= 0
C
ADJ
= 10F
C
ADJ
= 0
C
ADJ
= 0
C
ADJ
= 0
C
ADJ
= 10F
C
ADJ
= 10F
C
ADJ
= 10F
3.3
205 Crawford Street, Leominster, MA 01453 USA (508) 534-5776 FAX (508) 537-4246
OM7611ST
TYPICAL APPLICATIONS
.430
.410
.200
.190
.038 MAX.
.005
.120 TYP.
.537
.527
.665
.645
.420
.410
.150
.140
.750
.500
.100 TYP.
.035
.025
.045
.035
1 2 3
Tab
Front View
Pin 1:
Adjust
Pin 2:
V
IN
Pin 3:
V
OUT
Tab:
Isolated
NOTES
Case is metal/hermetically sealed
Isolated Tab
MECHANICAL OUTLINE
PIN CONNECTION
-V
OUT
-V
IN
V
IN
V
OUT
C
2
+
5F
C
1
I
ADJ
C
3
+
10F
2F
Adj
OM7611
R2
R1
+
V
REF
V
OUT
= V
REF
(
1+ R2
)
+I
ADJ
(R2)
R1
R3
1.5k
1%
-V
OUT
-V
IN
V
IN
V
OUT
+
5F
2F
Adj
7V
LM329B
OM7611
R2*
R1
1k
1%
+
Solid
Tantalum
V
OUT
9.08 X 10
-3
*R2 =
R2
-V
OUT
3
- V
IN
+
2F
+ 2F
+
2F
2F
IN4002
IN4002
+
Solid
Tantalum
-V
OUT
2
2F
+
Solid
Tantalum
-V
OUT
1
2F
+
Solid
Tantalum
V
IN
V
OUT
Adj
OM7611
V
IN
V
OUT
Adj
OM7611
V
IN
V
OUT
Adj
OM7611
C
1
R1
R2
R#N
10F
C
3
+
High Stability Regulator
Multiple Tracking Regulators