ETC OM1830NCM

OM1830SCM
OM1830NCM
7.5 AMP LOW DROPOUT POSITIVE ADJUSTABLE
REGULATOR APPROVED TO DESC DRAWING 5962-89520
Three Terminal, Positive Adjustable
Low Dropout Voltage Regulator In
Hermetic JEDEC TO-258AA Package
FEATURES
•
•
•
•
•
•
•
•
•
Similar To Industry Standard LT1083
Approved To DESC Standardized Military Drawing Number 5962-8952001Y
Adjustable Output Voltage
Built In Thermal Overload Protection
Short Circuit Current Limiting
Available In Isolated Package
Maximum Output Voltage Tolerance is Guaranteed To ±1%
Guaranteed Dropout Voltage At Multiple Current Levels
Product Also Available in Non-Isolated Package
DESCRIPTION
This three terminal positive adjustable voltage regulator is designed to provide 7.5A
with higher efficiency than conventional voltage regulators. This device is designed
to operate down to 1 volt input to output differential and the dropout voltage is fully
specified as a function of load current. Supplied in easy-to-use hermetic TO-258
package, this device is ideally suited for Military applications where small size and
high reliability is required.
ABSOLUTE MAXIMUM RATINGS @ 25°C
Power Dissipation (Pd) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited
Input - Output Voltage Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 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) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.75°C/W
qJC (Non-Isolated) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.3°C/W
Maximum Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.5 A
4 11 R1
Supersedes 1 06 R0
3.3 - 69
3.3
OM1830SCM OM1830NCM
ELECTRICAL CHARACTERISTICS
Parameter
Symbol
Reference Voltage
VREF
-55°C TA +125°C (unless otherwise specified)
Test Conditions
Min.
Max.
Unit
VIN - VOUT Œ= 3.0 V,
1.238
1.262
V
1.225
1.270
V
0.2
%
0.5
%
0.3
%
0.4
%
1.5
V
0.01
%/W
IOUT = 10 mA, TA = 25° C
1.5 V
VIN - VOUT Π25 V,
•
10 mA IOUT 5.0 A
Line Regulation
³VOUT
(Note 1)
³VIN
1.5 V
VIN - VOUT Π15 V,
IOUT = 10 mA, TA = 25° C
15 V
VIN - VOUT Π35 V,
•
IOUT = 10 mA
Load Regulation
³VOUT
VIN - VOUT Œ= 3.0 V, TA = 25° C
(Note 1)
³IOUT
10 mA IOUT 5.0 A
Dropout Voltage
VDO
IOUT = IFL, IFL = 5.0 A, ³VREF = 1%
Thermal Regulation
-
30 ms pulse, TA = +25° C
Ripple Rejection
³VIN
f = 120 Hz, CAdj = 25 µF,
³VOUT
COUT = 25 µF (tantalum), IFL = 5.0 A,
•
•
•
60
dB
VIN - VOUT Œ= 3.0 V, IOUT = IFL
Adjust Pin Current
IAdj
1.5 V
VIN - VOUT Π25 V
•
120
µA
•
5.0
µA
10
mA
10 mA IOUT 5.0 A
Adjust Pin Current Change
³IAdj
1.5 V
VIN - VOUT Π25 V
10 mA IOUT 5.0 A
Miminum Load Current
IMin
VIN - VOUT Œ= 25 V
Current Limit
ILim
VIN - VOUT Œ= 5.0 V
VIN - VOUT Œ= 25 V
Temperature Stability
³VOUT
(Note 2)
³T
Long Term Stability
³VOUT
(Note 2)
³T
-55° C TJ +125° C
•
•
•
•
8.0
A
0.4
TA = +125° C, t = 1000 hrs
A
1.5
%
1.0
%
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 maximum power dissipation of 60 W.
Power dissipation is determined by the input/output differential voltage and the output current. Guaranteed maximum
power dissipation will not be available over the full input/output voltage range.
3.3
2. Guaranteed by design, characterization or correlation to other tested parameters.
3. The • denotes the specifications which apply over the full operating temperature range.
PART NUMBER DESIGNATOR
Standard Military Drawing Number
Omnirel Part Number
8952001Y
OM1830SCM
8952001Z
OM1830NCM
“Y” = Isolated
3.3 - 70
OM1830SCM OM1830NCM
TYPICAL PERFORMANCE CHARACTERISTICS
SHORT CIRCUIT CURRENT
LOAD REGULATION
12
∆I= 7.5A
0.05
10
SHORT CIRCUIT CURRENT (A)
OUTPUT VOLTAGE DEVIATION (%)
0.10
0
-0.05
-0.10
25°C
8
150°C
6
-55°C
4
I FULL LOAD
2
-0.15
-0.20
0
-50
-25
0
25
50
75
100
125
150
0
5
20
25
30
35
2
MINIMUM INPUT/OUTPUT DIFFERENTIAL (V)
90
ADJUSTMENT PIN CURRENT (µA)
15
DROPOUT VOLTAGE
ADJUSTMENT PIN CURRENT
100
10
INPUT/OUTPUT DIFFERENTIAL (V)
TEMPERATURE (°C)
80
70
60
50
40
30
20
10
• INDICATES GUARANTEED TEST POINT
-40°C Tj 150°C
0°C Tj 125°C
1
Tj = -55°C
Tj = 25°C
Tj = 150°C
0
0
-50
-25
0
25
50
75
100
125
0
150
1
2
3
4
5
6
7
8
9
10
OUTPUT CURRENT (A)
TEMERATURE (°C)
TEMPERATURE STABILITY
MINIMUM OPERATING CURRENT
1.270
10
3.3
MINIMUM OPERATING CURRENT
REFERENCE VOLTAGE (V)
9
1.260
1.250
1.240
8
7
6
5
Tj = 150°C
4
Tj = 25°C
3
2
1
1.230
-50
-25
0
25
50
75
0
100 125 150
TEMPERATURE (°C)
Tj = -55°C
0
5
10
15
20
25
INPUT/OUTPUT DIFFERENTIAL (V)
3.3 - 71
30
35
OM1830SCM OM1830NCM
TYPICAL
APPLICATIONS
TYPICAL
APPLICATIONS
Parelleling Regulators
2 FEET #18 WIRE*
IN OM183 OUT
VIN
Improving Ripple Rejection
ADJ
VOUT =1.25
VIN
R2
__
(1+ R1
)
VIN OM183 VOUT
10µF
150µF
0.015 IOUT = OA TO 15A
0.015
IN OM183 OUT
*C1 IMPROVES RIPPLE
REJECTION. X C SHOULD BE
~ R1 AT RIPPLE FREQUENCY.
* THE #18 WIRE ACTS
AS BALLAST RESISTENCE
INSURING CURRENT SHARING
BETWEEN BOTH DEVICES.
ADJ
R1
120
VINVOUT
16.5V16.5V
R1
1211%
ADJ
+
+ C1
R2
365
1%
10µF*
R2
1.2V - 15V Adjustable Regulator
VIN OM183 VOUT
ADJ
+
C1
10µF
R1
121
5V Regulator with Shutdown
VOUT †
VIN
OM183 VOUT
ADJ
C2
100µF
R2
5k
VIN
+
+
TTL
+
10µF
2N3904
1k
5V
121
1%
100µF
365
1%
1k
*NEEDED IF DEVICE IS FAR FROM FILTER CAPACITORS
†
R2
__
V OUT =1.25V 1+ R1
(
)
MECHANICAL OUTLINE
3.3
.270
.240
.695
.685
.165
.155
CONNECTION DIAGRAM
.045
.035
.835
.815
.707
.697
.550
.530
.092 MAX.
.750
.500
.200 TYP.
.005
.065
.055
1
2
3
.140 TYP.
NOTES
• Case is metal/hermetically sealed
• Isolated Tab
PIN OUT
1 Adjust
2 VOUT
3 VIN
205 Crawford Street, Leominster, MA 01453 USA (508) 534-5776 FAX (508) 537-4246