SMSA2805D/KR [CRANE]

DC/DC CONVERTERS 28 VOLT INPUT; DC / DC转换器, 28伏特的输入
SMSA2805D/KR
型号: SMSA2805D/KR
厂家: Crane Aerospace & Electronics.    Crane Aerospace & Electronics.
描述:

DC/DC CONVERTERS 28 VOLT INPUT
DC / DC转换器, 28伏特的输入

转换器 模拟IC 信号电路 输入元件
文件: 总12页 (文件大小:267K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
FEATURES  
SMSA SERIES  
5 WATT  
DC/DC CONVERTERS  
28 VOLT  
• Fully qualified to Class H or K  
• Radiation hardened  
• –55° to +125°C operation  
• 16 to 40 VDC input  
I
NPUT  
• Fully isolated  
• Optocoupler feedback  
• Fixed frequency, 550 kHz typical  
Topology – Single Ended Flyback  
• Inhibit function  
• Indefinite short circuit protection  
• 5 watts output power  
• Up to 76% efficiency  
MODELS  
VDC OUTPUT  
SINGLE  
DUAL  
5
3.3  
5
12  
15  
12  
15  
Size (max.): 1.075 x 1.075 x 0.270 inches  
(27.31 x 27.31 x 6.86 mm)  
See Figures 23 and 24 for dimensions.  
15 grams maximum.  
Weight:  
Screening: Space prototype, Class H, or Class K (MIL-PRF-38534)  
Radiation hardness levels O or R  
Available configurations: OO, HO, HR, KR  
DESCRIPTION  
The SMSA Series™ of high frequency DC/DC converters offers a  
new standard of performance for low power, space qualified DC/DC  
converters. SMSA converters provide up to 5 watts output power  
over the full military temperature range of –55°C to +125°C with up  
to 76% efficiency. Thick-film hybrid techniques provide military/aero-  
space reliability levels and optimum miniaturization. The hermeti-  
cally sealed case is only 1.075 by 1.075 inches — with a height of  
only 0.270 inches. Power density for the SMSA Series converters is  
16 watts per cubic inch. The SMSA Series’ small size, light weight,  
and hermetically sealed metal packages make them ideal for use in  
space, military, aerospace and other high reliability applications.  
WIDE VOLTAGE RANGE  
The SMSA converters are designed to provide full power operation  
over the full 16 to 40 VDC voltage range. An undervoltage lockout  
feature keeps the converter shutdown below approximately 13 VDC  
to ensure smooth initialization.  
IMPROVED DYNAMIC RESPONSE  
The SMSA feed-forward compensation system provides excellent  
dynamic response and noise rejection. Audio rejection is typically 50  
dB. The minimum to maximum step line transient response is typi-  
cally less than 1%.  
SCREENING AND REPORTS  
INHIBIT FUNCTION  
SMSA converters offer three screening options – Space prototype  
Class H, or Class K – and two levels of radiation hardness. See  
Tables 1 through 3 for more information. Detailed reports on product  
performance are also available and are listed in Table 4.  
SMSA converters provide a TTL open collector-compatible inhibit  
feature that can be used to disable internal switching and inhibit the  
unit’s output. Inhibiting in this manner results in low standby current,  
and no generation of switching noise.  
CONVERTER DESIGN  
The converter is inhibited when the TTL compatible low (0.8V) is  
applied to the inhibit pin. The unit is enabled when the pin, which is  
internally connected to a pull-up resistor, is left unconnected or is  
connected to an open collector gate. The open circuit output voltage  
associated with the inhibit pin is 9 to 11 VDC. In the inhibit mode, a  
maximum of 4 mA must be sunk from the inhibit pin at 28 VDC input.  
The SMSA converters are switching regulators that use a flyback  
converter design with a constant switching frequency of 550 kHz.  
They are regulated, isolated units using a pulse width modulated  
topology and built as high reliability thick-film hybrids. Isolation  
between input and output circuits is provided with a transformer in  
the forward power loop and an optical link in the feedback control  
loop. Excellent input line transient response and audio rejection is  
achieved by an advanced feed-forward compensation technique.  
Negative output regulation is maintained by tightly coupled  
magnetics. Predictable current limit is accomplished by direct moni-  
toring of the output load current, which results in a constant current  
output above the overload point. Internal input and output filters  
eliminate the need for external capacitors.  
®
45  
SMSA SERIES  
5 WATT  
DC/DC CONVERTERS  
ABSOLUTE MAXIMUM RATINGS  
INHIBIT  
TYPICAL CHARACTERISTICS  
Input Voltage  
• 16 to 40 V  
Output Power  
• 5 watts  
Lead Soldering Temperature (10 sec per lead)  
• 300°C  
Storage Temperature Range (Case)  
• –65°C to +135°C  
Inhibit TTL Open Collector  
• Logic low (output disabled)  
Logic low voltage 0.8 V max  
Inhibit pin current 4 mA max  
• Referenced to input common  
• Logic high (output enabled)  
Open collector  
Output Voltage Temperature Coefficient  
• 100 ppm/°C typical  
Input to Output Capacitance  
• 50 pF typical  
Isolation  
• 100 megohm minimum at 500 V  
Audio Rejection  
• 50 dB typical  
Conversion Frequency  
• 550 kHz typical  
450 kHz min, 600 kHz max  
Inhibit Pin Voltage (unit enabled)  
• 9 to 11 V  
RECOMMENDED OPERATING CONDITIONS  
Input Voltage Range  
• 16 to 40 VDC continuous  
• 50 V for up to 50 msec transient  
Case Operating Temperature (Tc)  
• –55°C to +125°C full power  
• –55°C to +135°C absolute  
Derating Output Power/Current (Tc)  
• Linearly from 100% at 125°C to 0% at 135°C  
Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, radiation level O, unless otherwise specified.  
SINGLE OUTPUT MODELS  
PARAMETER  
SMSA283R3S  
MIN TYP MAX  
3.25 3.30 3.35  
SMSA2805S  
MIN TYP MAX  
4.95 5.00 5.05  
SMSA2812S  
MIN TYP MAX  
11.88 12.00 12.12  
SMSA2815S  
MIN TYP MAX  
14.85 15.00 15.15  
CONDITIONS  
UNITS  
VDC  
OUTPUT VOLTAGE  
OUTPUT CURRENT  
Tc = 55°C TO +125°C  
Tc = –55°C TO +125°C  
V
= 16 TO 40 VDC  
0
1200  
4
0
1000  
5
0
417  
5
0
333  
5
mA  
W
IN  
OUTPUT POWER  
V
= 16 TO 40 VDC  
IN  
Tc = 55°C TO +125°C  
10 kHz - 2 MHz  
OUTPUT RIPPLE  
VOLTAGE  
LINE REGULATION  
300 600  
150 450  
125 500  
150 600  
mV p-p  
mV  
V
= 16 TO 40 VDC  
IN  
Tc = 55°C TO +125°C  
NO LOAD TO FULL  
Tc = 55°C TO +125°C  
Tc = 55°C TO +125°C  
NO LOAD TO FULL  
CONTINUOUS  
10  
10  
50  
50  
10  
10  
50  
50  
10  
10  
50  
50  
10  
10  
50  
50  
LOAD REGULATION  
INPUT VOLTAGE  
mV  
16  
0
28  
35  
250  
3
50  
60  
40  
50  
60  
16  
0
28  
35  
250  
3
50  
60  
74  
40  
50  
60  
16  
0
28  
35  
235  
3
50  
60  
74  
40  
50  
60  
16  
0
28  
35  
235  
3
40  
50  
60  
5
200  
300  
VDC  
V
3
TRANSIENT 50 ms  
INPUT CURRENT  
NO LOAD  
FULL LOAD  
INHIBITED  
60  
68  
69  
%
mA  
5
5
5
INPUT RIPPLE  
CURRENT  
EFFICIENCY  
10 kHz - 10 MHz  
Tc = 55°C TO +125°C  
200  
300  
200  
300  
200  
300  
50  
60  
mA p-p  
1, 2  
LOAD FAULT  
POWER DISSIPATION  
RECOVERY  
50% - 100% - 50%  
TRANSIENT  
1.5  
12.5 25  
2.4  
1.5  
12.5 25  
2.0  
1.2  
1
1.9  
10  
1.2  
1
1.8  
10  
W
ms  
SHORT CIRCUIT  
STEP LOAD  
RESPONSE  
200 500  
200 500  
200 500  
200 500  
300 750  
400 1000  
400 1000  
400 1000  
mV pk  
µs  
2, 3  
RECOVERY  
STEP LINE  
RESPONSE  
TRANSIENT  
2, 3  
16 TO 40 V  
200 500  
200 500  
200 500  
200 500  
200 800  
250 600  
200 500  
200 500  
IN  
mV pk  
µs  
40 TO 16 V  
IN  
RECOVERY  
16 TO 40 V  
IN  
400 1000  
400 1000  
400 1000  
400 1000  
700 1300  
700 1300  
500 1300  
500 1300  
40 TO 16 V  
IN  
START-UP  
DELAY  
10  
0
75  
10  
0
75  
10  
0
75  
10  
0
75  
ms  
3
OVERSHOOT  
200  
200  
500  
500  
mV pk  
Notes  
1. Indefinite short circuit protection not guaranteed above 125°C (case).  
2. Recovery time is measured from application of the transient to point at which  
3. Guaranteed but not tested.  
V
is within 1% of V  
at final value.  
OUT  
OUT  
®
46  
SMSA SERIES  
5 WATT  
DC/DC CONVERTERS  
Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, radiation level O, unless otherwise specified.  
DUAL OUTPUT MODELS  
SMSA 2805D  
SMSA2812D  
SMSA2815D  
MIN TYP  
PARAMETER  
CONDITIONS  
MIN  
4.95  
4.9  
TYP  
5.00  
5.0  
MAX  
MIN  
TYP  
11.88 12.00  
11.76 12.00  
MAX  
12.12  
12.24  
MAX  
UNITS  
OUTPUT VOLTAGE  
+V  
5.05  
5.1  
14.85 15.00 15.15  
14.70 15.00 15.30  
OUT  
VDC  
–V  
OUT  
1
OUTPUT CURRENT  
V
= 16 to 40 VDC  
IN  
Tc = 55°C to +125°C  
= 16 to 40 VDC  
500  
800  
208  
333  
167  
267  
mA  
1
OUTPUT POWER  
V
IN  
Tc = 55°C to +125°C  
5
5
5
W
OUTPUT RIPPLE VOLT.  
LINE REGULATION  
10 kHz - 2 MHz  
300  
80  
300  
120  
300  
mV p-p  
Vin = 16 to 40 VDC  
Tc = 55°C to +125°C  
+V  
20  
40  
100  
200  
20  
40  
100  
200  
10  
40  
50  
OUT  
mV  
–V  
180  
OUT  
LOAD REGULATION  
NO LOAD TO FULL  
Tc = 55°C to +125°C  
+V  
10  
120  
400  
10  
120  
400  
10  
50  
50  
OUT  
mV  
%
–V  
100  
100  
200  
OUT  
2
CROSS REGULATION  
+P = 30 - 70 %, –P =70 - 30%  
O
O
5
8
3.7  
28  
6
3
6
–P = 30 - 70 %, +P = 70 - 30%  
O
O
NO LOAD TO FULL  
CONTINUOUS  
INPUT VOLTAGE  
INPUT CURRENT  
16  
28  
40  
16  
40  
16  
28  
40  
VDC  
V
5
TRANSIENT 50 msec  
50  
50  
50  
63  
50  
60  
NO LOAD  
30  
40  
38  
FULL LOAD  
INHIBITED  
65  
248  
3
5
67  
235  
3
5
68  
235  
3
5
mA  
INPUT RIPPLE  
CURRENT  
10 kHz TO 10 MHz  
Tc = 55°C to +125°C  
50  
60  
70  
200  
300  
50  
60  
73  
200  
300  
50  
60  
73  
200  
300  
mA p-p  
%
EFFICIENCY  
3, 4  
LOAD FAULT  
POWER DISSIPATION  
SHORT CIRCUIT  
1.3  
2.1  
50  
1.3  
1
1.7  
30  
1.3  
1
1.6  
50  
W
RECOVERY  
ms  
STEP LOAD  
RESPONSE  
50% - 100% - 50% BALANCED  
TRANSIENT  
200  
200  
550  
500  
200  
200  
550  
500  
220  
200  
600  
500  
mV  
µs  
4, 5  
RECOVERY  
4, 5  
STEP LINE RESP.  
16 TO 40 VDC  
200  
200  
500  
500  
200  
200  
500  
500  
600  
600  
1500  
1500  
mV pk  
µs  
TRANSIENT  
40 TO 16 VDC  
16 TO 40 VDC  
300  
800  
10  
750  
2000  
30  
300  
800  
10  
750  
2000  
30  
500  
500  
10  
1200  
1200  
25  
RECOVERY  
40 TO 16 VDC  
START-UP  
DELAY  
ms  
5
OVERSHOOT  
0
500  
0
500  
0
500  
mV pk  
Notes  
1. Up to 4 watts (80% of full power) is available from either output providing the  
opposite output is carrying 20% of total power.  
3. Indefinite short circuit protection not guaranteed above 125°C (case).  
4. Recovery time is measured from application of the transient to point at which  
2. Shows regulation effect on the minus output during the defined cross loading  
conditions, with 80% and 20% referring to the total output power of the  
converter. See Figures 15 and 16.  
V
is within 1% of V  
at final value.  
OUT  
OUT  
5. Guaranteed but not tested.  
®
47  
SMSA SERIES  
5 WATT  
DC/DC CONVERTERS  
6
1
Positive  
Output  
Positive  
Output Filter  
Input  
Error  
Amp  
5
VR  
2
Inhibit  
Output  
Common  
PWM  
Control  
Input  
7
8
Common  
3
Negative  
Output  
Output Filter  
Feedback  
Case  
Ground  
= DUAL OUTPUT  
FIGURE 1: SMSA BLOCK DIAGRAM  
SMSA  
Positive  
Input  
6
12 k  
5 k ꢀ  
400 ꢀ  
5
Inhibit  
50 k ꢀ  
200 pF  
10 K  
2N3904  
7
Vcc  
Typically 1.5 V  
when inhibited  
10 k ꢀ  
3.9 K  
Input  
Common  
FIGURE 2: INHIBIT INTERFACE  
®
48  
SMSA SERIES  
5 WATT  
DC/DC CONVERTERS  
EMI Filter  
SMSA2815S  
T
1
Positive  
Input  
Positive  
Output  
Positive  
Input  
Positive  
Output  
+
To Load  
C
C
From input  
power source  
2
3
Case  
Output Common  
Input  
Common  
Input  
Common  
Output  
Common  
Case  
T
1
C
1
FIGURE 3: LOW NOISE OUTPUT FILTER FOR S MSA SINGLE OUTPUT MODEL  
EMI Filter  
SMSA2815D  
T
1
Positive  
Positive  
Output  
Positive  
Positive  
Output  
Input  
Input  
+
C
C
C
From input  
power source  
2
Case  
3
To Loads  
+
Output Common  
C
5
4
Input  
Common  
Input  
Common  
Output  
Common  
Negative  
Output  
Case  
T
1
C
1
FIGURE 4: LOW NOISE OUTPUT FILTER FOR SMSA DUAL OUTPUT MODEL  
The filter suggestions in Figures 3 and 4 will further reduce the  
output ripple for systems requiring very low output noise.  
C1 = 0.27 µF ceramic capacitor, 500V  
C2 = C4 = 6.8 µF tantalum capacitor  
C3 = C5 = 0.27 µF ceramic capacitor  
Single output: T1 = 15T #28 AWG winding on toroid, µ = 5000  
i
Dual output: T2 = 10T #28 AWG winding on toroid, µ = 5000  
i
For best results, make interconnections as short as possible.  
®
49  
SMSA SERIES  
5 WATT  
DC/DC CONVERTERS  
PIN OUT  
Pin  
1
Single Output  
Positive Output  
Dual Output  
Positive Output  
2
Output Common Output Common  
3
No connection  
No connection  
Inhibit  
Negative Output  
No connection  
Inhibit  
4
5
6
Positive Input  
Input Common  
Case Ground  
Positive Input  
Input Common  
Case Ground  
7
8
Squared corner on header and dot  
on top of cover indicate pin one.  
1
8
2
3
4
5
6
BOTTOM VIEW  
SMSA  
7
See Figures 23 and 24 for dimensions.  
FIGURE 5: PIN OUT BOTTOM VIEW  
SMD NUMBERS  
STANDARD MICROCIRCUIT  
SMSA SERIES  
SIMILAR PART  
DRAWING (SMD)  
MODEL NUMBERING KEY  
IN PROCESS  
SMSA283R3S/HO  
SMSA2805S/HO  
SMSA2812S/HO  
SMSA2815S/HO  
SMSA2812D/HO  
SMSA2815D/HO  
5962-9309202HXC  
5962-9309302HXC  
5962-9309402HXC  
5962-9308902HXC  
5962-9309002HXC  
SMSA 28 05 S /  
K R  
Base Model  
Voltage In (28V)  
Output Voltage  
The SMD number shown is for Class H screening and no  
Radiation Hardness Assurance (RHA) level. See the SMD for  
the numbers for other screening and radiation levels. For  
exact specifications for an SMD product, refer to the SMD  
drawing. Call your Interpoint representative for status on the  
SMSA SMD releases which are “in process.” SMDs can be  
downloaded from:  
Number of Outputs  
(S = single, D = dual)  
Environmental Screening  
Radiation Tolerance  
http://www.dscc.dla.mil/programs/smcr  
®
50  
SMSA SERIES  
5 WATT  
DC/DC CONVERTERS  
Typical Performance Curves: 25°C Tc, 28 VDC Vin, 100% load, unless otherwise specified.  
80  
80  
70  
60  
50  
40  
30  
80  
70  
60  
50  
40  
30  
16V  
16V  
16V  
70  
60  
50  
40  
30  
28V  
28V  
28V  
40V  
40V  
40V  
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
OUTPUT POWER (Watts)  
SMSA2805S EFFICIENCY  
OUTPUT POWER (Watts)  
SMSA2815S EFFICIENCY  
OUTPUT POWER (Watts)  
SMSA2812S EFFICIENCY  
FIGURE 2  
FIGURE 3  
FIGURE 4  
80  
70  
60  
50  
40  
30  
16V  
10  
20  
30  
40  
50  
60  
70  
80  
90  
100  
V
IN  
40V  
28V  
V
OUT  
1
2
3
4
5
6
0.1  
1
10  
100  
100µs/div  
16V TO 40V  
OUTPUT POWER (Watts)  
FREQUENCY (kHz)  
SMSA2815D EFFICIENCY  
SMSA SERIES AUDIO REJECTION  
SMSA2805S STEP LINE RESPONSE  
FIGURE 5  
FIGURE 6  
FIGURE 7  
100% to 10%  
100% to 50%  
V
IN  
10% to 100%  
50% to 100%  
V
OUT  
100µs/div  
1 ms / div  
100µs/div  
10% 100%  
50% 100%  
SMSA2805S TURN-ON INTO NO LOAD  
SMSA2805S STEP LOAD RESPONSE  
SMSA2805S STEP LOAD RESPONSE  
FIGURE 8  
FIGURE 9  
FIGURE 10  
50% to 10%  
–P =2.5W  
OUT  
–P  
=0.5W  
OUT  
V
IN  
90% to 10%  
+V  
–V  
OUT  
OUT  
10% to 90%  
10% to 50%  
200µs/div  
100µs/div  
10% 50%)  
200µs/div  
10% 90%  
16V TO 40V  
SMSA2815D INPUT STEP LINE RESPONSE  
SMSA2815D +V STEP LOAD RESPONSE  
SMSA2815D +V STEP LOAD RESPONSE  
O
O
FIGURE 12  
FIGURE 13  
FIGURE 11  
®
51  
SMSA SERIES  
5 WATT  
DC/DC CONVERTERS  
Typical Performance Curves: 25°C Tc, 28 VDC Vin, 100% load, unless otherwise specified.  
5
4
10  
8
2812D  
3
6
2
4
2812D  
COND A  
COND B  
V
IN  
1
2
0
+V  
0
2815D  
OUT  
OUT  
2815D  
–1  
–2  
–3  
–4  
–5  
–2  
–4  
–6  
–8  
–10  
–V  
2812D  
30  
10  
20  
40  
50  
90/10 70/30 50/50 30/70 10/90  
500µs/div  
OUTPUT LOAD (%)  
OUTPUT LOAD (+V % / –V  
90–10% LOAD on +V, 10-90% LOAD on –V  
SMSA DUAL CROSS REGULATION  
%)  
OUT  
OUT  
SMSA2815D TURN-ON INTO NO LOAD  
COND. A: 50% LOAD +V; 10% to 50% –V  
COND. B: 50% LOAD –V; 10% to 50% +V  
SMSA DUAL CROSS REGULATION  
FIGURE 14  
FIGURE 15  
FIGURE 16  
17  
17  
2805S  
2815D  
16  
16  
15  
15  
14  
2812S  
14  
13  
13  
2812D  
2815S  
12  
12  
1
2
3
4
5
6
1
2
3
4
5
6
OUTPUT POWER (Watts)  
50 mV DROP  
OUTPUT POWER (Watts)  
50 mV DROP  
SMSA LOW LINE DROPOUT VS. LOAD  
SMSA LOW LINE DROPOUT VS. LOAD  
FIGURE 17  
FIGURE 18  
®
52  
SMSA SERIES  
5 WATT  
DC/DC CONVERTERS  
Dot on top of case  
indicates pin one  
Materials  
Header Cold Rolled Steel/Nickel/Gold  
Cover Cold Rolled Steel/Nickel  
CASE C  
BOTTOM VIEW  
See Figure 24  
Pins  
Copper/Nickel/Gold  
compression glass seal  
1.075 max  
(27.31)  
for pin configurations.  
Case dimensions in inches (mm)  
Tolerance  
0.005 (0.13) for three decimal places  
0.01 (0.3) for two decimal places  
unless otherwise specified  
1.075 max  
(27.31)  
CAUTION  
Heat from reflow or wave soldering may  
damage the device. Solder pins  
individually with heat application not  
exceeding 300°C for 10 seconds per  
pin.  
FIGURE 23: CASE C MAXIMUM DIMENSIONS  
BOTTOM VIEW CASE C1  
SMSA Series  
Projection Weld  
Squared corner and dot on  
top of case indicate pin one.  
0.932  
(23.67)  
1
8
2
3
7
4
5
0.025  
(0.64)  
dia.  
6
0.132  
(3.35)  
0.000  
FIGURE 24: CASE C1  
Note: Although every effort has been made to render the case drawings at actual size, variations in the printing process may cause some distortion. Please refer  
to the numerical dimensions for accuracy.  
®
53  
SMSA SERIES  
5 WATT  
DC/DC CONVERTERS  
TABLE 1: ELEMENT EVALUATION  
ELEMENT EVALUATION  
SPACE  
PROTOTYPE CLASS  
CLASS  
K
TEST PERFORMED  
(O)  
H
(COMPONENT LEVEL)  
M/S  
yes  
no  
no  
no  
no  
no  
no  
no  
no  
no  
no  
no  
no  
no  
P
M/S  
P
M/S  
P
Element Electrical  
no yes yes yes  
no yes yes yes  
yes  
yes  
no  
Element Visual  
Internal Visual  
no yes  
no yes  
no yes  
no yes  
no yes  
no yes  
no yes  
no yes  
no no  
no no  
Temperature Cycling  
Constant Acceleration  
Interim Electrical  
Burn-in  
no  
no  
no  
no  
no  
no  
no  
no  
no  
no  
no  
no  
no  
no  
no  
no  
yes  
yes  
no  
no  
Post Burn-in Electrical  
Steady State Life  
Voltage Conditioning /Aging  
Visual Inspection  
Final Electrical  
no  
no  
yes  
yes  
yes  
yes  
no  
no yes yes yes  
no yes yes yes  
Wire Bond Evaluation  
SEM  
no  
no  
no yes  
SLAM™/C-SAM:  
Input capacitors only  
(Add’l test, not req. by H or K)  
no  
no  
no  
yes no  
yes  
Notes  
M/S Active components (Microcircuit and Semiconductor Die)  
Passive components  
P
Definitions  
Element Evaluation: Component testing/screening per MIL-STD-883 as determined by MIL-PRF-38534  
SEM: Scanning Electron Microscopy  
SLAM™: Scanning Laser Acoustic Microscopy  
C-SAM: C - Mode Scanning Acoustic Microscopy  
®
54  
SMSA SERIES  
5 WATT  
DC/DC CONVERTERS  
TABLE 2: PRODUCT ENVIRONMENTAL SCREENING  
ENVIRONMENTAL SCREENING  
SPACE  
PROTOTYPE  
(O)  
TEST PERFORMED  
(END ITEM LEVEL)  
Non-destruct bond pull  
Method 2023  
Pre-cap inspection  
Method 2017, 2032  
Temperature cycle  
Method 1010, Cond. C  
Constant acceleration  
Method 2001, 3000 g  
PIND Test  
CLASS  
H
CLASS  
K
no  
yes  
yes  
yes  
no  
yes  
yes  
yes  
yes  
yes  
yes  
yes  
yes  
yes  
yes  
Method 2020, Cond. B  
Radiography  
Method 2012  
Pre burn-in test  
no  
yes  
no  
yes  
yes  
yes  
Burn-in, Method 1015, 125°C  
96 hours  
yes  
no  
no  
no  
yes  
no  
no  
no  
yes  
160 hours  
2 x 160 hour (includes mid BI test)  
Final electrical test  
MIL-PRF-38534, Group A  
Hermeticity test  
yes  
yes  
yes  
Fine Leak,  
Method 1014, Cond. A  
Gross Leak,  
Method 1014, Cond. C  
Final visual inspection  
Method 2009  
yes  
yes  
yes  
yes  
yes  
yes  
yes  
yes  
yes  
Test methods are referenced to MIL-STD-883 as determined by MIL-PRF-38534.  
®
55  
SMSA SERIES  
5 WATT  
DC/DC CONVERTERS  
TABLE 3: RADIATION HARDNESS LEVELS  
PRODUCT LEVEL AVAILABILITY  
ENVIRONMENTAL SCREENING LEVELS  
SPACE  
PROTOTYPE  
(O)  
CLASS  
H
CLASS  
K
RADIATION HARDNESS LEVELS  
O: Standard, no radiation guarantee  
For system evaluation, electrically  
and mechanically comparable to  
H and K level.  
R: Radiation hardened – Tested lots  
Up to 100 k Rads (Si) total dose  
SEU guarantee up to 40 MeV  
Not  
available  
OO  
HO  
HR  
Not  
available  
KR  
R is referenced to MIL-PRF-38534, appendix G, Radiation Hardness Assurance  
(RHA) levels.  
TABLE 4:  
REPORTS: AVAILABLE FOR CUSTOMER REVIEW AT INTERPOINT  
1.Radiation Susceptibility Analysis  
2. Electrical/Thermal Stress Analysis and Derating Report  
3. MTBF Report  
4. FMEA Report  
HO option: Reports 2, 3, and 4 are included with purchase.  
OO option: Select reports available as separate purchases.  
Contact Information:  
www.interpoint.com  
Interpoint Headquarters USA  
Phone: 1-800-822-8782  
+425-882-3100  
Interpoint UK  
Phone: +44-1252-872266  
Interpoint France  
Phone: +33-134285455  
Email:  
poweruk@intp.com  
Email:  
powerfr@intp.com  
Email:  
power@intp.com  
SMSA Rev E (05D SCPD) This revision supercedes all previous releases.  
All technical information is believed to be accurate, but no responsibility is assumed  
for errors or omissions. Interpoint reserves the right to make changes in products or  
specifications without notice. SMSA Series is a trademark of Interpoint. Copyright  
© 1997-2004 Interpoint Corporation. All rights reserved.  
®
56  

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