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OMR183 Series OMR184 Series
OMR185 Series OMR186 Series
30 kRad - 100kRad RADIATION TOLERANT 7.5A, 5A, 3A, 1.5A LOW DROPOUT POSITIVE ADJUSTABLE REGULATORS
30 kRad - 100kRad Rad Tolerant LDO Positive Adjustable Voltage Regulators in Hermetic Packages
Please see mechanical outlines herein
FEATURES
* * * * * * * Operates Down to 1V Dropout, 1.5V @ Max. Current .015% Line Regulation .01% Load Regulation 1% Reference Voltage Hermetic Isolated and Non-Isolated Packages Radiation Tolerant up to 150 kRad (Si) Available Hi-Rel Screened, Class B and Class S, MIL-STD-883
DESCRIPTION
These three terminal positive adjustable voltage regulators are designed to provide 7.5A, 5A, 3A, and 1.5A with higher efficiency than conventional voltage regulators. The devices are designed to operate to 1 Volt input to output differential and the dropout voltage is specified as a function of load current. All devices are pin compatible with older three terminal regulators. These devices are ideally suited for Space applications where small size, high reliability, and radiation tolerance is required. The high level of Radiation Tolerance of these devices makes them a desirable choice for LEO and many MEO and GEO communication satellites. Radiation testing is performed on a single wafer by wafer basis. Random die samples per wafer are selected, packaged and radiation tested to qualify each individual semiconductor wafer-by-wafer.
ABSOLUTE MAXIMUM RATINGS @ 25C
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 V Operating Junction Temperature Range. . . . . . . . . . . . . . . . . . . . . - 55C to + 150C Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 65C to + 150C Output Current - OMR183SC, NM.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.5 A OMR184SC, NM.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 A OMR185ST, SR, NM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 A OMR186ST, SR, NM.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5 A OMR186NH.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 A Lead Temperature (Soldering 10 seconds) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300 C Surface Mount Package Soldering Temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250 C Radiation Tolerant - Total Dose, OMR183, OMR184 . . . . . . . . . . . . . . . . . . .100k Rad (Si) Total Dose, OMR185 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50k Rad (Si) Total Dose, OMR186 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30k Rad (Si)
Note:
OMR183 and OMR184 products are packaged in the TO-258 or SMD-1 Packages (7.5A & 5A). OMR185 products are packaged in the TO-257, D2 Pac or SMD-1 Packages (3A). OMR186 products are packaged in the TO-257, D2 Pac or SMD-1 or TO-205 Packages (1.5A & 0.5A).
0 02 R0
OMR183- OMR186 Series
ELECTRICAL CHARACTERISTICS (TC = 25C unless otherwise noted)
Parameter Reference Voltage Conditions IOUT = 10 mA, Tj = 25C (VIN - VOUT) = 3 V 10mA IOUT IFULL LOAD 1.5 V (VIN - VOUT) 25 V (Note 3) Line Regulation ILOAD = 10 mA, 1.5 V (VIN - VOUT) 15 V, Tj = 25C 1.220 1.250 0.015 0.035 1.270 0.2 0.2 V % % 1.238 1.250 1.262 V Min. Typ. Max. Units
15 V (VIN - VOUT) 35 V (Notes 1 & 2) Load Regulation (VIN - VOUT) = 3 V 10 mA IOUT IFULL LOAD Tj = 25C (Notes 1, 2, 3) Dropout Voltage Current Limit OMR183 (VIN - VOUT) = 5 V (VIN - VOUT) = 25 V OMR184 (VIN - VOUT) = 5 V (VIN - VOUT) = 25 V OMR185 (VIN - VOUT) = 5 V (VIN - VOUT) = 25 V OMR186 (VIN - VOUT) = 5 V (VIN - VOUT) = 25 V Minimum Load Current Thermal Regulation OMR183 OMR184 OMR185 OMR186 Ripple Rejection f = 120 Hz CADJ = 25 F Tantalum IOUT - IFULL LOAD (VIN - VOUT) = 3 V Adjust Pin Current Adjust Pin Current Change TJ = 25C 10mA IOUT IFULL LOAD 1.5 V (VIN - VOUT) 25 V Temperature Stability Long Term Stability Thermal Resistance TO-257, D2 Pac TO-258 SMD-1 TO-205 -55C TJ +150C TA = 125C, 1000 Hrs. Junction-to-Case 60 (VIN - VOUT) = 25 V TA = 25C, 30 ms pulse Guaranteed by design VREF = 1%, IOUT = IFULL LOAD
0.05
0.5
%
0.5 .8 1.3
0.8 1.0 1.5
% % V
8.0 0.4 5.5 0.3 3.2 0.2 1.5 0.75 5 10
A A A A A A A A mA
0.002 0.003 0.004 0.010
0.01 0.15 0.02 0.05
%/W %/W %/W %/W
75 55
dB A
0.2 0.5 0.3
5
A %
1
%
4.2 2.75 3.5 17
C/W C/W C/W C/W
Note 1: Load and line regulation are measured at a constant junction temperature by low duty cycle pulse testing. Note 2: Line and load regulation are guaranteed up to the maximum power dissipation (OMR183/60W, OMR184/45W, OMR185/30W, OMR186/15W). Power dissipation is determined by the input/output differential and the output current. Guaranteed maximum power dissipation will not be available over the full input/output voltage range. Note 3: IFULL LOAD curve is defined as the minimum value of current limit as a function of input to output voltage. Note that power dissipation is only achievable over a limited range of input to output voltage. Note 4: Dropout voltage is specified over the full output current range of the device. Note 5: Refer to curves for typical characteristics versus total dose radiation levels.
OMR183- OMR186 Series
OMNIREL'S RADIATION TEST PROCEDURE
* * * * * Radiation Testing is performed on a single wafer by wafer basis. Each wafer is identified and a random sample of 5 die per wafer is selected. The die are then individually assembled in a hermetic package, data logged, electrically tested, hi-rel screened and then submitted to radiation testing. The packaged die are submitted to Steady State Total Dose radiation per Method 1019, Condition A, at a dose rate of 50 RAD/sec biased at maximum supply voltage. Final electrical test is performed within two hours of both Total Dose Radiation level from a Cobalt 60 source and 168 hr, 100C annealing process. Read and record data including two non-radiated control samples. The wafer is then qualified only if samples from wafers meet full electrical specifications after 150% of total dose rating as specified in each product data sheet. Omnirel's controlling specifications are as follows: For Voltage Regulators the controlling specification is MIL-PRF- 38534/MIL-STD-883. For Rectifiers/Schottky the controlling specification is MIL-PRF-19500/MIL-STD-750.
* *
AVAILABLE PRODUCT SCREENING
Standard Class Level Screening Per MIL-PRF-38535
Screen *Level B Test Method
Wafer Lot Acceptance Non-destructive Bond Pull Pre-Cap Visual Inspection Temperature Cycle Constant Acceleration Visual Inspection PIND Test Serialization Pre-Burn-In Electrical Burn-In Interim Electrical PDA Calculations Final Electrical Fine & Gross Seal Radiographic Conformance Inspection** Final Visual Inspection --------2010 1010 2001 ------------Data Sheet 1015/160 hrs. ----5% Functional Data Sheet 1014 ----GR A 2009
*Level S Test Method
5007 ----2010 1010 2001 ----2020 ----Data Sheet 1015/240hrs. Data Sheet 5% Functional Data Sheet 1014 2012/Two Views GR A 2009
Required
--------100% 100% 100% 100% --------100% 100% ----Lot 100% 100% ----100% Sample
Required
100% ----100% 100% 100% 100% 100% 100% 100% 100% 100% Lot 100% 100% 100% 100% Sample
*Note: For "B" Level Screening add "M" to part number, for "S" Level Screening add "S" to part number. See Part Number Designator. **Note: Additional conformance inspection testing i.e. Group B, C, & D optional.
OMR183- OMR186 Series
TYPICAL PERFORMANCE CHARACTERISTICS
Minimum Input/Output Differential (V) OMR183 Dropout Voltage 2 Short Circuit Current (A) 12 10 8 6
TJ = -55C TJ = 25C TJ = 150C
OMR183 Short Circuit Current 0.10 Output Voltage Deviation (%) 0.05 0 -0.05 -0.10 -0.15
OMR183 Load Regulation
I = 7.5A
1
TJ = 25C
4 2 0 0 5
IFULL LOAD
0
0 1 2 3 4 5 6 7 8 9 10 Output Current (A)
10
15
20
25
30
35
Input/Output Differential (V) OMR184 Short Circuit Current 10 9 8 6 6 5 4 3 2 1 0
TJ = -55C
-0.20 -50 -25 0 25 50 75 100 125 150 Temperature (C) OMR184 Load Regulation 0.10 Output Voltage Deviation (%)
I = 5A
Minimum Input/Output Differential (V)
OMR184 Dropout Voltage 2 Short Circuit Current (A)
TJ = 150C TJ = 25C
0.05 0 -0.05 -0.10 -0.15 -0.20 -50 -25 0 25 50 75 100 125 150 Temperature (C) OMR185 Load Regulation 0.10
1
TJ = 25C
IFULL LOAD
0
0
1
2
3
4
5
6
0
5
10
15
20
25
30
35
Output Current (A) OMR185 Dropout Voltage 2 Short Circuit Current (A) 6 5 4 3 2 1
Input/Output Differential (V) OMR185 Short Circuit Current Output Voltage Deviation (%)
Minimum Input/Output Differential (V)
I = 3A
TJ = 150C TJ = 25C
0.05 0 -0.05 -0.10 -0.15 -0.20 -50 -25 0 25 50 75 100 125 150 Temperature (C) OMR186 Load Regulation
1
TJ = 25C
TJ = -55C
IFULL LOAD
0
0 0 1 2 3 4 0 5 10 15 20 25 30 35 Output Current (A) OMR186 Dropout Voltage Input/Output Differential (V) OMR186 Short Circuit Current 3.0 Short Circuit Current (A) 2.5 2.0 1.5 1 .5
IFULL LOAD TJ = -55C
Minimum Input/Output Differential (V)
2
0.10 Output Voltage Deviation (%)
I = 3A TJ = 150C TJ = 25C
0.05 0 -0.05 -0.10 -0.15 -0.20 -50 -25 0 25 50 75 100 125 150 Temperature (C)
1
TJ = 25C
0
0
1 Output Current (A)
2
0 0 5 10 15 20 25 30 Input/Output Differential (V) 35
OMR183- OMR186 Series
APPLICATION NOTES
Stability The OMR183-186 Series requires the use of an output capacitor as part of the device frequency compensation. For all operating conditions, the addition of 150F aluminum electrolytic or a 22F solid tantalum on the output will ensure stability. Normally, capacitors much smaller than this can be used. Many different types of capacitors with widely varying characteristics are available. These capacitors differ in capacitor tolerance (sometimes ranging up to 100%), equivalent series resistance, and capacitance temperature coefficient. The 150F or 22F values given will ensure stability. When the adjustment terminal is bypassed to improve the ripple rejection, the requirement for an output capacitor increases. The values of 22F tantalum or 150F aluminum cover all cases of bypassing the adjustment terminal. Without bypassing the adjustment terminal, smaller capacitors can be used with equally good results and the table below shows approximately what size capacitors are needed to ensure stability. Normally, capacitor values on the order of 100F are used in the output of many regulators to ensure good transient response with heavy load current changes. Output capacitance can be increased without limit and larger values of output capacitor further improve stability and transient response of the OM183SC regulators. Output Voltage -- Adjustable Regulators The OMR183-OM186 devices develop a 1.25V reference voltage between the output and the adjust terminal (see below). By placing a resistor, R1, between these two terminals, a constant current is caused to flow through R1 and down through R2 to set the overall output voltage. Normally this current is the specified minimum load current of 10mA. Because IADJ is very small and constant when compared with the current through R1, it represents a small error and can usually be ignored.
Recommended Capacitor Values
Input 10F 10F Output 10F Tantalum, 50F Aluminum 22F Tantalum, 150F Aluminum Adjustment None 20F
Basic Adjustable Regulator
RADIATION TEST PROGRAM
The following chart is a summary of the test data collected on Radiation Tolerant OMR183-186 series at various doses. The chart depicts the Total Radiation Dose that each device was exposed to on a step stress irradiation basis prior to failure. Failure is defined as any electrical test that does not meet the limits of the device per the published data sheet specifications after radiation testing.
Omnirel P/N OMR183 Test Points OMR184 Test Points OMR185 Test Points 5K 10K 20K 30K 50K 60K 70K 80K 100K 150K 200K RAD
X X X X X X X X
X X X
X X
OMR186 Test Points
X
X
X
X
X
X
OMR183- OMR186 Series
TYPICAL RADIATION CURVES
OMR183- OMR186 Series
TYPICAL RADIATION CURVES
OMR183- OMR186 Series
MECHANICAL OUTLINES "T" P/N DESIGNATOR "H" P/N DESIGNATOR
123
TO-257AA OMR18XST Isolated/Front View
Pin 1 Pin 2 Pin 3 Tab Adjust Output Input Isolated Add "T" to part number for TO-257 Package
TO-205AF (TO-39) OMR18XNH Non-Isolated
Pin 1 Input Pin 2 Adjust Pin 3 Output (Case) Add "H" to part number for TO-205 Package
"R" P/N DESIGNATOR
"M" P/N DESIGNATOR
1 2
123
3
Hermetic D2 Pac OMR18XSR Isolated
Front View Pin 1 - Adjust Pin 2 - Output Pin 3 - Input Tab - Isolated Add "R" to part number for D2 Pac Package
OMR18XNM SMD-1
Pin 1 - Input Pin 2 - Adjust Pin 3 - Output Add "M" to part number for SMD (Surface Mount Package)
OMR
PART NUMBER DESIGNATOR (Example OMR186STM) 186 S T
M
Omnirel Rad-Tolerant
Device Type
Isolated Package
Package Style
Screening Level
205 Crawford Street, Leominster, MA 01453 USA (978) 534-5776 FAX (978) 537-4246 Visit Our Web Site at www.omnirel.com

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