DCH1205S [CRANE]
Analog Circuit, Hybrid, MDIP16,;型号: | DCH1205S |
厂家: | Crane Aerospace & Electronics. |
描述: | Analog Circuit, Hybrid, MDIP16, |
文件: | 总4页 (文件大小:75K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
FEATURES
DCH SERIES
3 WATT
DC/DC CONVERTERS
5, 12, OR 28 VOLT NPUT
• –55°C to 100°C
• 4 to 6.5, 9 to 15, or
20 to 32 VDC input
• Fully isolated
I
MODELS
VDC OUTPUT
• Output regulated from
input side
SINGLES
DUALS
±12
±15
• 100 kHz typical switching
frequency
5
12
28
• Topology –
±28
Push-Pull DC/DC Converter
• Up to 75% efficiency
• No minimum load
• Output capacitor suggested
Size (max.): 0.975 x 0.800 x 0.350 inches (24.77 x 20.32 x 8.89 mm)
See section B8, case A3, for dimensions.
Weight:
20 grams typical
Screening: Standard or ES. See Section C2 for screening options,
see Section A5 for ordering information.
DESCRIPTION
Figure 1 shows a standard connection scheme for a dual output
model. Users may also elect to use a dual output device to provide
a single output at double the rated output voltage. The double
voltage connection is achieved by leaving the normal output
common pin (Pin 15) unconnected and using either the positive or
negative Vout pin for the output common connection.
The DCH Series™ offers isolated, unregulated DC/DC converters
with up to 3 watts of output power in a low profile (0.350 max.) metal
package. Single and dual output models are available with input
voltages of 5, 12, or 28 VDC. DCH Series converters operate over
a –55°C to +100°C temperature range.
DCH Series converters use a non-saturating core circuit operating
at a frequency of approximately 100 kHz, which reduces reflected
input ripple and minimizes EMI/RFI problems. For applications
requiring MIL-STD-461C, CEO3, reflected input ripple levels, refer
to Section B5 or contact your Interpoint representative for matching
EMI filters.
On all DCH Series models, a tantalum capacitor with a minimum
value of 22 µF and an appropriate voltage rating should be
connected between the output common and the output line(s) to
minimize output ripple.
Positive
Input
Positive
Output
FIGURE 1:
+
+
Load
Load
DUAL DCH CONVERTER
28 V
Output Common
WITH EXTERNAL CAPACITORS
Input
Common
Negative
Output
Typical Performance Curves: 25°C Tc ,nominal Vin
Efficiency
DCH2805S
Output Current vs Output Voltage
DCH2805S
Efficiency
DCH1215D
Output Current vs Output Voltage
DCH1215D
FIGURE 2
FIGURE 3
FIGURE 4
FIGURE 5
B4-31
DCH SERIES
3 WATT
DC/DC CONVERTERS
ABSOLUTE MAXIMUM RATING
TYPICAL CHARACTERISTIC
Output Voltage Tolerance (Full Load)
• 5 volt output models ±0.25
Output Power
• 3 watts
Lead Soldering Temperature (10 sec per lead)
• 300°C
Storage Temperature Range (Case)
• –55°C to +125°C
• 12 volt output models ±0.4
• 15 volt output models ±0.5
• 28 volt output models ±0.6
Line Regulation
• Output is directly proportional to input voltage.
Output Voltage Temperature Coefficient
• 0.02%/°C maximum
RECOMMENDED OPERATING CONDITION
Input Voltage Range (VDC)
Converter Frequency
• 5 volt input models 4.0 to 6.5
• 12 volt input models 9.0 to 15.0
• 28 volt input models 20.0 to 32.0
Case Operating Temperature (Tc)
• –55°C to +100°C full power
• 100 kHz typical
Isolation
• 100 megohm minimum at 500 V
Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, unless otherwise specified.
OUTPUT
CURRENT
TC = –55°C
TO +100°C
OUTPUT
POWER
LOAD
REGULATION
50% TO
MODEL
INPUT
OUTPUT
EFFICIENCY
FULL LOAD
INPUT
OUTPUT
1
2
2
NUMBER
VOLTAGE
VOLTAGE
TC = –55°C
TO +100°C
CURRENT
RIPPLE
FULL LOAD
10% LOAD
MAX
NOMINAL
VDC
NOMINAL
VDC
MAX
mA
MAX
W
MIN
%
TYP
mV
MAX
mA
mVp-p
DCH0505S
DCH0512S
DCH0512D
DCH0515D
DCH1205S
DCH1212S
DCH1228S
DCH1212D
DCH1215D
DCH1228D
DCH2805S
DCH2812S
DCH2812D
DCH2815D
5
5
400
208
2.0
2.5
2.5
2.5
2.5
3.0
3.0
3.0
3.0
3.0
2.5
3.0
3.0
3.0
67
72
72
72
70
72
75
72
72
75
68
75
75
75
470
830
830
830
500
440
870
440
440
870
450
375
375
375
220
250
250
250
110
70
300
200
100
100
300
200
300
100
100
200
300
200
100
100
5
12
5
±12
±15
5
±104
±83
5
12
12
12
12
12
12
28
28
28
28
500
12
250
28
107
110
110
110
110
50
±12
±15
±28
5
±125
±100
±53
500
12
250
50
±12
±15
±125
±100
50
50
Notes
1. Nominal output voltage is correct only for nominal input voltage. Output voltage changes in proportion to input voltage.
2. Output ripple results require the connection of a tantalum capacitor (22 µF minimum) across each output.
PIN OUT
Pin
1
Designation
Positive Input
No Connection
Input Common
No Connection
Case
Dot on top of cover
indicates pin one.
MODEL NUMBERING KEY
2
DCH 28 12 D / ES
3
Base Model
1
2
3
8
9
8
Input Voltage
9
Output Voltage
BOTTOM VIEW
DCH
1
1
Number of Outputs
(S = single, D = dual)
14
15
16
Negative Output
Output Common
Positive Output
16 15 14
Screening
(Standard screening has no designator
in this position.)
Note
See Section B8, case A3, for dimensions
1. Pins 14 and 15 are connected
internally on single output
models.
FIGURE 6: PIN OUT
24600-001-DTS Rev A
DQ# 1024
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. DCH Series is a trademark of Interpoint.
Copyright © 1991 - 1999 Interpoint. All rights reserved.
B4-32
CASE A
CASES
Dot on top of case
indicates pin one.
BOTTOM VIEW CASE A1
FMSA EMI Filter: Screening – Standard, ES, or 883
STF EMI Filter: Screening – Space Standard, H, or K
Projection Weld
CASE A
BOTTOM VIEW
See Figures 2 - 4
Seam Seal
Squared corner and dot on
top of case indicate pin one.
0.800 max
(20.32)
0.697
for pin configurations.
(17.70
1
8
2
6
3
4
0.397
(10.08)
0.975 max
(24.77)
0.097
(2.46)
0.000
7
5
Materials
Header
Kovar/Nickel/Gold
(Case A3, Kovar/Nickel)
Kovar/Nickel
Kovar/Nickel/Gold,
matched glass seal
Cover
Pins
0.018 ± 0.002 dia.
(0.46 ± 0.05)
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
FIGURE 2: CASE A1
BOTTOM VIEW CASE A2
MCH Series: Screening – Standard, ES, or 883
SLH Series: Screening – Space Standard, H, or K
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.
Projection Weld
Seam Seal
Squared corner and dot on
top of case indicate pin one.
0.697
(17.70
1
7
2
3
4
5
FIGURE 1: CASE A MAXIMUM DIMENSIONS
0.018 ± 0.002 dia.
(0.46 ± 0.05)
0.097
(2.46)
0.000
6
FIGURE 3: CASE A2
BOTTOM VIEW CASE A3
DCH Series: Screening – Standard or ES
Seam Seal
Projection Weld
Dot on top of case
indicates pin one.
0.697
(17.70
1
2
3
8
0.018 ± 0.002 dia.
(0.46 ± 0.05)
0.097
(2.46)
0.000
9
16 15 14
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.
FIGURE 4: CASE A3
B8-6
QA SCREENING
85°C PRODUCTS
85°C PRODUCTS
TEST (85°C Products excluding HR products)
STANDARD
/ES
yes
yes
yes
yes
yes
PRE-CAP INSPECTION
Method 2017
yes
no
TEMPERATURE CYCLE (10 times)
Method 1010, Cond. B, -55°C to 125°C
CONSTANT ACCELERATION
Method 2001, 500 g
no
BURN-IN
96 hours at 70°C ambient (typical)
FINAL ELECTRICAL TEST MIL-PRF-38534, Group A
Subgroups 1 and 4: +25°C case
HERMETICITY TESTING
no
yes
Fine Leak, Method 1014, Cond. A
Gross Leak, Method 1014, Cond. C
no
no
yes
yes
no
-3
Gross Leak, Dip (1 x 10 )
yes
FINAL VISUAL INSPECTION
Method 2009
yes
yes
Test methods are referenced to MIL-STD-883 as determined by MIL-PRF-38534.
Applies to the following products:
MFW Series
MTW Series
MHE/MLP Series
MHL Series
MRH Series
MTO Series
MSR Series
DCH Series
FM/FMA/FMB EMI Filters
MSF EMI Filter
C2-12
相关型号:
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