MSA2812D [CRANE]
Analog Circuit, Hybrid, MDIP10,;型号: | MSA2812D |
厂家: | Crane Aerospace & Electronics. |
描述: | Analog Circuit, Hybrid, MDIP10, |
文件: | 总8页 (文件大小:116K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
FEATURES
• –55° to +125°C operation
• 16 to 40 VDC input
• Fully isolated
• Optocoupler feedback
• Fixed frequency, 550 kHz typical
(400 kHz typ. 60 V output model)
• Topology – Flyback
• 50 V for up to 50 ms transient protection
• Inhibit function
MSA SERIES
5 WATT
DC/DC CONVERTERS
28 VOLT NPUT
I
MODELS
VDC OUTPUT
SINGLE
DUAL
5
5
5.2
12
15
60
12
15
• Indefinite short circuit protection
• Up to 76% efficiency, 16 W/in
3
Size (max.): 1.075 x 1.075 x 0.270 inches (27.31 x 27.31 x 6.86 mm)
Weight:
15 grams maximum.
Screening:
Standard, ES, or 883 (Class H).
DESCRIPTION
WIDE VOLTAGE RANGE
The MSA converters are designed to provide full power operation
over a full 16 to 40 VDC voltage range. Operation below 16 volts,
including MIL-STD-704E emergency power conditions is possible
with derated power. Please refer to the low line dropout graphs
(Figures 17 and 18) for details. A low voltage lockout feature keeps
the converter shutdown below approximately 13 VDC to ensure
smooth initialization.
The MSA Series™ of high frequency DC/DC converters offers a new
standard of performance for low power, military/aerospace grade
DC/DC converters. MSA parts provide up to 5 watts output power
over the full military temperature range with up to 76% efficiency.
Thick-film hybrid techniques provide military/aerospace reliability
levels and optimum miniaturization. The hermetically sealed case is
only 1.075 by 1.075 inches — with a height of only 0.270 inches.
Power density for the MSA Series parts is 16 watts per cubic inch.
IMPROVED DYNAMIC RESPONSE
The MSA 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%.
The MSA Series’ small size, low height, and hermetically sealed
metal enclosures make them ideal for use in military, aerospace and
other high reliability applications. Units are available with standard,
screening, “ES”, and fully compliant SMD “883” screening. See
page 8 for screening options and descriptions.
INHIBIT FUNCTION
MSA 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 MSA 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 path 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. Up to 4 watts, 80% of the total output power, is available
from either output, provided that the opposite output is simultane-
ously carrying 20% of the total power. Each output must carry a
minimum of 20% of the total output power in order to maintain spec-
ified regulation on the negative output. Predictable current limit is
accomplished by direct monitoring 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.
The converter is inhibited when the TTL compatible low (≤0.8 V) 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 V. In the inhibit mode, a
maximum of 4 mA must be sunk from the inhibit pin.
UNDERVOLTAGE LOCKOUT AND TRANSIENT
PROTECTION
Undervoltage lockout helps keep system current levels low during
initialization or re-start operations. They can withstand short term
transients of up to 50 volts without damage.
1
MSA 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 (400 kHz 60 V model)
450 kHz min, 600 kHz max
350 kHz min, 450 kHz max 60 V model
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, unless otherwise specified.
1
SINGLE OUTPUT MODELS
PARAMETER
MSA2805S
MIN TYP MAX MIN TYP MAX MIN TYP MAX MIN TYP MAX MIN TYP MAX
Tc = –55°C TO +125°C 4.95 5.00 5.05 5.15 5.20 5.25 11.88 12.00 12.12 14.85 15.00 15.15 59.1 60.00 60.9
MSA285R2S
MSA2812S
MSA2815S
MSA2860S
CONDITIONS
UNITS
VDC
OUTPUT VOLTAGE
OUTPUT CURRENT
Tc = –55°C TO +125°C
V
V
= 16 TO 40 VDC
= 16 TO 40 VDC
0
—
—
1000
5
0
—
—
962
5
0
—
—
417
5
0
—
—
333
5
0
—
—
20
mA
W
IN
OUTPUT POWER
IN
Tc = –55°C TO +125°C
—
—
—
—
—
1.2
OUTPUT RIPPLE
VOLTAGE
LINE REGULATION
10 kHz - 2 MHz
= 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
CONTINUOUS
TRANSIENT 50 ms
NO LOAD
FULL LOAD
INHIBITED
10 kHz - 10 MHz
Tc = –55°C TO +125°C
—
—
—
125 350
2
—
—
—
110 335
—
—
—
50
10
10
200
50
—
—
—
50 170
—
—
—
—
—
—
300
300
300
mV p-p
mV
V
10
50
10
10
50
50
10
10
50
50
LOAD REGULATION
10
50
50
mV
INPUT VOLTAGE
NO LOAD TO FULL
16
0
28
—
27
250
3
40
50
40
—
16
0
28
—
28
250
3
40
50
40
—
16
0
28
—
29
235
3
25
30
76
1.2
1
40
50
42
—
16
0
28
—
31
235
3
40
50
44
—
5
16
0
28
—
—
72
3
—
—
75
—
—
40
50
30
—
5
90
—
—
—
—
VDC
V
INPUT CURRENT
Tc = –55°C TO +125°C
—
—
—
—
—
66
—
—
—
—
—
—
—
66
—
—
—
—
—
—
—
70
—
—
—
—
—
—
—
71
—
—
—
—
—
—
—
70
—
—
mA
5
5
5
INPUT RIPPLE
CURRENT
25
30
71
100
150
—
25
30
71
1.5
1.5
100
150
—
2.0
25
100
150
—
1.9
10
25 100
30 150
mA p-p
EFFICIENCY
LOAD FAULT
76
1.2 1.8
10
—
%
W
ms
3, 4
POWER DISSIPATION
RECOVERY
50% - 100% - 50%
TRANSIENT
1.5
12.5
2.0
25
SHORT CIRCUIT
STEP LOAD
1
4, 5
RESPONSE
—
—
100 250
100 250
—
—
100 250
100 250
—
—
150 375
200 500
—
—
200 500
200 500
—
—
—
—
—
—
mV pk
µs
RECOVERY
STEP LINE
RESPONSE
TRANSIENT
16 TO 40 V
IN
4, 5
—
—
50
50
150
150
—
—
50
50
150
150
—
—
80
200
—
—
50 125
50 125
—
—
—
—
—
—
mV pk
µs
40 TO 16 V
IN
100 250
RECOVERY
16 TO 40 V
IN
—
—
100 250
200 500
—
—
100 250
200 500
—
—
250 625
250 625
—
—
250 625
250 625
—
—
—
—
—
—
40 TO 16 V
IN
START-UP
Notes
DELAY
OVERSHOOT
—
—
10
0
25
50
—
—
10
0
25
50
—
—
3
0
10
120
—
—
3
0
10
150
—
—
—
—
—
—
ms
mV pk
1. MSA2860S specifications are at 25°Tc only, contact your Interpoint
representative for more information on over temperature specs.
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. Line regulation for /ES and non /ES 2805S models at 16 to 17 V and 110
°C to 125°C (case) is 5% (max).
V
is within 1% of V at final value.
OUT
IN
OUT
5. Transition time >10µs.
2
MSA SERIES
5 WATT
DC/DC CONVERTERS
Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, unless otherwise specified.
DUAL OUTPUT MODELS
MSA 2805D
MSA2812D
MSA2815D
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
—
500
800
—
208
333
—
167
267
mA
1
OUTPUT POWER
V
= 16 to 40 VDC
IN
Tc = –55°C to +125°C
—
—
—
—
5
—
—
—
5
—
—
—
5
W
OUTPUT RIPPLE VOLT.
10 kHz - 2 MHz
150
40
140
60
150
mV p-p
LINE REGULATION
Vin = 16 to 40 VDC
Tc = –55°C to +125°C
+V
—
—
10
40
25
75
—
—
10
40
50
—
—
10
40
50
OUT
mV
mV
–V
180
180
OUT
LOAD REGULATION
NO LOAD TO FULL
Tc = –55°C to +125°C
+V
—
—
10
50
50
—
—
10
50
50
—
—
10
50
50
OUT
–V
200
200
200
OUT
2
CROSS REGULATION
+P = 20 - 80 %, –P = 80 - 20%
O
O
—
—
10
5
20
8
—
—
8
15
6
—
—
7
3
15
6
–P = 20 - 80 %, +P = 80 - 20%
O
O
%
+P = 50 - 10 %, –P = 50%
O
O
3.7
–P = 50 - 10 %, +P = 50%
O
O
NO LOAD TO FULL
˜CONTINUOUS
INPUT VOLTAGE
Tc = –55°C to +125°
16
28
40
16
28
40
16
28
40
VDC
V
TRANSIENT 50 msec
NO LOAD
—
—
—
50
35
—
—
—
50
58
—
—
—
50
60
INPUT CURRENT
30
33
38
Tc = –55°C to +125°C
FULL LOAD
INHIBITED
—
—
—
—
68
248
3
—
5
—
—
—
—
69
235
3
—
5
—
—
—
—
70
235
3
—
5
mA
INPUT RIPPLE
CURRENT
10 kHz TO 10 MHz
Tc = –55°C to +125°C
25
30
72
80
160
—
25
30
75
100
150
—
25
30
75
100
150
—
mA p-p
%
EFFICIENCY
3, 4
LOAD FAULT
POWER DISSIPATION
SHORT CIRCUIT
—
—
1.3
—
1.8
50
—
—
1.3
1
1.7
10
—
—
1.3
1
1.6
10
W
RECOVERY
50% - 100% - 50% BALANCED
TRANSIENT
ms
STEP LOAD
4, 5
RESPONSE
—
—
—
—
150
100
—
—
300
200
750
500
—
—
300
500
750
mV
µs
RECOVERY
1250
4, 5
STEP LINE RESP.
16 TO 40 VDC
—
—
—
—
—
—
—
—
—
—
—
—
750
500
—
—
—
—
—
—
50
50
150
400
3
125
125
375
1000
10
—
—
—
—
—
—
150
100
250
800
3
375
250
625
2000
10
mV pk
µs
TRANSIENT
40 TO 16 VDC
16 TO 40 VDC
1200
1200
25
RECOVERY
40 TO 16 VDC
START-UP
DELAY
ms
OVERSHOOT
500
0
120
0
150
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. See Figures 15 and 16.
V
is within 1% of V at final value.
OUT
OUT
5. Transition time >10µs.
3
MSA SERIES
5 WATT
DC/DC CONVERTERS
PIN OUT
Pin
1
Single Output Dual Output
Positive Output Positive Output
Output Common Output Common
2
3
4
5
6
7
8
No connection
No connection
Inhibit
Negative Output
No connection
Inhibit
Positive Input
Input Common
Case Ground
Positive Input
Input Common
Case Ground
Squared corner and dot on top
of package indicate pin one.
1
8
2
3
4
5
6
BOTTOM VIEW
MSA
7
See page 7 for dimensions.
FIGURE 1: PIN OUT BOTTOM VIEW
SMD NUMBERS
STANDARD MICROCIRCUIT
DRAWING (SMD)
MSA SERIES
SIMILAR PART
MODEL NUMBERING KEY
5962-9309201HXC
IN PROCESS
MSA2805S/883
MSA285R2S/883
MSA2812S/883
MSA2815S/883
MSA2860S/883
MSA2812D/883
MSA2815D/883
MSA 28 12
D / 883
Base Model
5962-9309301HXC
5962-9309401HXC
5962-0052201HXC
5962-9308901HXC
5962-9309001HXC
Input Voltage
Output Voltage
(R = decimal point, 5R2 = 5.2 Vout)
Number of Outputs
(S = single, D = dual)
Screening
(Standard screening has no designator
in this position.)
For exact specifications for an SMD product, refer to the SMD
drawing. Call your Interpoint representative for status on
MSA SMD releases. “883” suffix indicates SMD similar part.
SMDs can be downloaded from:
http://www.dscc.dla.mil/programs/smcr
4
MSA 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)
MSA2805S EFFICIENCY
OUTPUT POWER (Watts)
MSA2815S EFFICIENCY
OUTPUT POWER (Watts)
MSA2812S 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
OUTPUT POWER (Watts)
MSA2815D EFFICIENCY
FREQUENCY (kHz)
MSA SERIES AUDIO REJECTION
16V TO 40V
MSA2805S 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%
MSA2805S TURN-ON INTO NO LOAD
MSA2805S STEP LOAD RESPONSE
MSA2805S STEP LOAD RESPONSE
FIGURE 8
FIGURE 9
FIGURE 10
50% to 10%
–P =2.5W
OUT
–P
=0.5W
OUT
V
90% to 10%
IN
+V
OUT
–V
OUT
10% to 90%
10% to 50%
200µs/div
16V TO 40V
100µs/div
10% 50%)
200µs/div
10% 90%
MSA2815D INPUT STEP LINE RESPONSE
MSA2815D +V STEP LOAD RESPONSE
MSA2815D +V STEP LOAD RESPONSE
O
O
FIGURE 12
FIGURE 13
FIGURE 11
5
MSA 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
2815D
OUT
OUT
0
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
MSA DUAL CROSS REGULATION
%)
OUT
OUT
MSA2815D TURN-ON INTO NO LOAD
COND. A: 50% LOAD +V; 10% to 50% –V
COND. B: 50% LOAD –V; 10% to 50% +V
MSA DUAL CROSS REGULATION
FIGURE 14
FIGURE 15
FIGURE 16
17
17
MSA2805S
16
MSA2815D
16
15
14
13
12
15
MSA2812S
14
13
MSA2812D
MSA2815S
12
1
2
3
4
5
6
1
2
3
4
5
6
OUTPUT POWER (Watts)
50 mV DROP
LOW LINE DROPOUT VS. LOAD
OUTPUT POWER (Watts)
50 mV DROP
LOW LINE DROPOUT VS. LOAD
FIGURE 17
FIGURE 18
6
MSA 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 20
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 19: CASE C MAXIMUM DIMENSIONS
BOTTOM VIEW CASE C1
MSA Series: Screening – Standard, ES, or 883
Projection Weld
Squared corner and dot on
top of case indicate pin one.
Seam Seal
0.932
(23.67)
1
8
2
3
7
4
5
0.025
(0.64)
dia.
6
0.132
(3.35)
0.000
FIGURE 20: 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.
7
MSA SERIES
5 WATT
DC/DC CONVERTERS
E
NVIRONMENTAL CREENING
S
TEST (125°C Products)
STANDARD
/ES
/883 (Class H)*
PRE-CAP INSPECTION
Method 2017, 2032
yes
yes
yes
TEMPERATURE CYCLE (10 times)
Method 1010, Cond. C, -65°C to 150°C
Method 1010, Cond. B, -55°C to 125°C
no
no
no
yes
yes
no
CONSTANT ACCELERATION
Method 2001, 3000 g
Method 2001, 500 g
no
no
no
yes
yes
no
BURN-IN
Method 1015, 160 hours at 125°C
96 hours at 125°C case (typical)
no
no
no
yes
yes
no
FINAL ELECTRICAL TEST MIL-PRF-38534, Group A
Subgroups 1 through 6: -55°C, +25°C, +125°C
Subgroups 1 and 4: +25°C case
no
yes
no
yes
yes
no
HERMETICITY TESTING
Fine Leak, Method 1014, Cond. A
Gross Leak, Method 1014, Cond. C
Gross Leak, Dip (1 x 10 )
no
no
yes
yes
yes
no
yes
yes
no
-3
FINAL VISUAL INSPECTION
Method 2009
yes
yes
yes
Test methods are referenced to MIL-STD-883 as determined by MIL-PRF-38534.
*883 products are built with element evaluated components and are 100% tested and guaranteed over
the full military temperature range of –55°C to +125°C.
Contact Information:
www.interpoint.com
Interpoint Headquarters USA
Phone: 1-800-822-8782
+425-882-3100
Interpoint UK
Phone: +44-1252-815511
Interpoint France
Phone: +33-134285455
Email:
poweruk@intp.com
Email:
powerfr@intp.com
Email:
power@intp.com
22021-001-DTS Rev C 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. MSA Series is a trademark of Interpoint.
Copyright © 1994 - 2001 Interpoint Corporation. All rights reserved.
8
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