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Электронный компонент: OM7654SM

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3.5 - 151
3.5
Dual Positive And Negative Adjustable
High Voltage Regulators In Isolated
Hermetic Surface Mount Package
4 11 R1
Supersedes 2 07 R0
SURFACE MOUNT 1.5 AMP HIGH VOLTAGE
POSITIVE AND NEGATIVE ADJUSTABLE REGULATOR
FEATURES
Similar To Industry Standard LT117AHV And LT137AHV
Adjustable Output Voltage
Built In Thermal Overload Protection
Short Circuit Current Limiting
Hermetic 6-Pin Metal Surface Mount Package
Maximum Output Voltage Tolerance Is Guaranteed To 1%
Available Hi-Rel Screened
DESCRIPTION
This device offers a positive and negative adjustable regulator in one hermetically sealed 6-pin
surface mount 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. This device is ideally suited for military applications where
small size and high reliability is required.
ABSOLUTE MAXIMUM RATINGS
Input - Output Voltage Differential - LT117AHV Positive Regulator . . . . . . . . . . . . . . . . . + 60 V
Input - Output Voltage Differential - LT137AHV Negative Regulator . . . . . . . . . . . . . . . . . . - 50 V
Power Dissipation (P
d
) (Internally Limited) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 W
Operating Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 55C to + 150C
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 65C to + 150C
Lead Temperature (Soldering 10 seconds) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300C
Thermal Resistance:
JC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2C/W
JA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42C/W
Maximum Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5 A
OM7654SM
DUAL TRACKING SUPPLY 1.25V TO 20V
D1
IN4002
POS REG.
V
IN
V
OUT
Adj
Adj
V
IN
V
OUT
NEG REG.
+V
IN
+V
OUT
-V
IN
-V
OUT
R
2
5K
1%
R
4
5k
1%
R
1
**
100
1%
2.2*
F
1F*
D2
IN4002
1F*
10F
10F
*
Solid Tantalum
** R
1
or R
2
may be trimmed slightly to improve tracking.
R
3
5K
R
5
**
100
1%
+
+
2.2*
F
MECHANICAL OUTLINE
.425
.200
.100
.035 WIDE
FLAT 6 PLCS.
.350 MIN.
.080
.160
.020
.020
.115
.425
Pin 1: +V
IN
Pin 2: -V
ADJ
Pin 3: -V
IN
Pin 4: -V
OUT
Pin 5: +V
ADJ
Pin 6: +V
OUT
NOTES:
Case is metal/hermetically sealed
Isolated Tab
1
2
3
6
5
4
3.5 - 152
OM7645SM
3.5
ELECTRICAL CHARACTERISTICS Positive Regulator -55C T
A
125C, I
L
= 8mA (unless otherwise specified)
Parameter
Symbol
Test Conditions
Min.
Max.
Unit
Reference Voltage
V
REF
V
DIFF
= 3.0V, T
A
= 25C
1.238
1.262
V
DIFF
= 3.3V
1.225
1.270
V
V
DIFF
= 40V
1.225
1.270
V
DIFF
= 60V
1.225
1.270
Line Regulation
R
LINE
3.0V V
DIFF
40V, V
out
= V
ref
, T
A
= 25C
-4.5
4.5
(Note 1)
3.3V V
DIFF
40V, V
out
= V
ref
-9
-9
mV
40V V
DIFF
60V, V
out
= V
ref
, T
A
= 25C
-5
5
40V V
DIFF
60V, V
out
= V
ref
-10
10
Load Regulation
R
LOAD
V
DIFF
= 3.0V, 10mA I
L
1.5A, T
A
= 25C
-15
15
(Note 1)
V
DIFF
= 3.3V, 10mA I
L
1.5A
-15
15
mV
V
DIFF
= 40V, 10mA I
L
300mA, T
A
= 25C
-15
15
V
DIFF
= 40V, 10mA I
L
195mA
-15
15
V
DIFF
= 60V, 10mA I
L
30mA
-15
15
Thermal Regulation
V
RTH
V
in
= 14.6V, I
L
= 1.5A
-5
5
mV
P
d
= 20 Watts, t = 20 ms, T
A
= 25C
Ripple Rejection
R
N
f = 120 Hz, V
out
= V
ref
66
dB
(Note 2)
C
Adj
= 10 F, I
out
= 100 mA
Adjustment Pin Current
I
Adj
V
DIFF
= 3.0V, T
A
= 25C
100
V
DIFF
= 3.3V
100
A
V
DIFF
= 40V
100
V
DIFF
= 60V
100
Adjustment Pin
I
Adj
V
DIFF
= 3.0V, 10mA I
L
1.5A, T
A
= 25C
-5
5
Current Change
V
DIFF
= 3.3V, 10mA I
L
1.5A
-5
5
V
DIFF
= 40V, 10mA I
L
300mA, T
A
= 25C
-5
5
V
DIFF
= 40V, 10mA I
L
195mA
-5
5
A
3.0V V
DIFF
40V, T
A
= 25C
-5
5
3.3V V
DIFF
40V
-5
5
3.3V V
DIFF
60V
-5
5
Miminum Load Current
I
Lmin
V
DIFF
= 3.0V, V
out
= 1.4V (forced)
5.0
V
DIFF
= 3.3V, V
out
= 1.4V (forced)
5.0
mA
V
DIFF
= 40V, V
out
= 1.4V (forced)
5.0
V
DIFF
= 60V, V
out
= 1.4V (forced)
7.0
Current Limit
I
CL
V
DIFF
= 5V
1.5
3.5
(Note 2)
V
DIFF
= 40V, T
A
= 25C
0.3
1.5
A
V
DIFF
= 60V, T
A
= 25C
0.05
0.50
ELECTRICAL CHARACTERISTICS Positive Regulator -55C T
A
125C, I
L
= 8mA (unless otherwise specified)
Parameter
Symbol
Test Conditions
Min.
Max.
Unit
Reference Voltage
V
REF
V
DIFF
= 3.0V, T
A
= 25C
-1.262
-1.238
V
DIFF
= 3.0V
-1.28
-1.22
V
V
DIFF
= 50V, T
A
= 25C
-1.28
-1.22
V
DIFF
= 50V
-1.28
-1.22
Line Regulation
R
LINE
3.0 V V
DIFF
50V, T
A
= 25C
-6
6
(Note 1)
-20
20
mV
Load Regulation
R
LOAD
V
DIFF
= 50V, 8mA I
L
110mA, T
A
= 25C
-25
25
(Note 1)
V
DIFF
= 5V, 8mA I
L
1.5A, T
A
= 25C
-25
25
mV
-50
50
Thermal Regulation
V
RTH
V
in
= -14.6V, I
L
= 1.5A
-5
5
mV
P
d
= 20 Watts, t = 10 ms, T
A
= 25C
Ripple Rejection
R
N
f = 120 Hz, V
out
= V
ref
66
dB
(Note 2)
C
Adj
= 10 F, I
out
= 100 mA
Adjustment Pin Current
I
Adj
V
DIFF
= 3.0V
100
V
DIF
= 40V
100
A
V
DIFF
= 50V
100
Adjustment Pin
I
Adj
V
DIFF
= 5V, 8mA I
out
1.5A
-5
5
A
Current Change
3V V
DIFF
50V, I
L
8mA
-6
6
Miminum Load Current
I
Lmin
V
DIFF
= 3.0V, V
out
= -1.4V (forced)
3.0
V
DIFF
= 10V, V
out
= -1.4V (forced)
3.0
mA
V
DIFF
= 40V, V
out
= -1.4V (forced)
5.0
V
DIFF
= 50V, V
out
= -1.4V (forced)
5.0
Current Limit
I
CL
V
DIFF
= 5V
1.5
3.5
(Note 2)
V
DIFF
= 50V, T
A
= 25C
0.2
1.0
A
Notes for both Positive and Negative Regulators Characteristics:
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.
3.5 - 153
OM7654SM
3.5
0.2
0
-0.2
-0.4
-0.6
-0.8
-1.0
-75
-50
-25
0
25
50
75
100
125
150
0.4
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1.0
-75 -50 -25
0
25
50
75
100 125 150
-75
-50
-25
0
25
50
75
100
125
150
65
60
55
50
45
40
35
70
ADJUSTMENT PIN CURRENT
T
J
, Junction Temperature (C)
70
65
60
55
50
45
40
-75 -50 -25
0
25
50
75 100 125 150
1.260
1.250
1.240
1.230
1.220
-75
-50
-25
0
25
50
75
100
125
150
TEMPERATURE STABILITY
-75 -50 -25
0
25
50
75 100 125 150
T
J
, Junction Temperature (C)
1.260
1.250
1.240
1.230
1.220
40
30
20
10
0
0
1
2
3
4
CURRENT LIMIT
T
J
= 25C
T
J
= 55C
T
J
= 150C
4
3
2
1
0
0
10
20
30
4
0
V
I
- V
O
, Input - Output Voltage Differential (V
dc
)
3.0
2.5
2.0
1.5
1.0
-75
-50
-25
0
25
50
75
100
125
150
DROPOUT VOLTAGE
I
L
= 1.5A
V
O
= 100mV
I
L
= 20mA
I
L
= 1.0A
I
L
= 500mA
I
L
= 200mA
-75 -50 -25
0
25
50
75 100 125 150
T
J
, Junction Temperature (C)
3.0
2.5
2.0
1.5
1.0
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0
10
20
30
40
MINIMUM OPERATING CURRENT
T
J
= 25C
T
J
= 55C
T
J
= 150C
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0
10
20
30
4
0
V
I
- V
O
, Input - Output Voltage Differential (V
dc
)
POSITIVE REGULATOR - TYPICAL PERFORMANCE CHARACTERISTICS
Positive
Regulator
V
in
C
in
*
0.1 F
V
out
C
o
**
1.0 F
R
2
Adjust
I
Adj
R
1
240
STANDARD APPLICATION
* C
in
is required if regulator is located an
appreciable distance from power supply filter.
** C
o
is not needed for stability, however it does
improve transient response.
V
out
= 1.25 V (1 + )+ I
Ad j
R
2
Since I
Adj
is controlled to less than 100 A,
the error associated with this term is negligible
in most applications.
R
2
R
1
LOAD REGULATION
T
J
, Junction Temperature (C)
I
L
= 0.5A
V
I
= 15V
V
O
= 10V
I
L
= 1.5A
V
O
, Output Voltage Change (%)
I
O
, Output Current (A)
I
Adj
, Adjustment Pin Current (A)
V
ref
, Reference Voltage (V)
I
B
, Quiescent Current (mA)
V
I
- V
O
, Input - Output Voltage Differential (V
dc
)

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