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參數資料
| 型號： | ADDC02805SA |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 28 V/66 W/100 W DC/DC Converters with Integral EMI Filter |
| 中文描述： | 28 V/66 W/100中西區區議會/ DC轉換器與積分EMI濾波器 |
| 文件頁數： | 16/18頁 |
| 文件大小： | 241K |
| 代理商： | ADDC02805SA |
ADDC02803SC/ADDC02805SA
REV. A
–16–
The pins of the converter are typically connected to the next
higher level assembly by bending them at right angles, either
down or up, and cutting them shorter for insertion in printed
circuit board through holes. In order to maintain the hermetic
integrity of the seals around the pins, a fixture should be used
for bending the pins without stressing the pin-to-sidewall seals.
It is recommended that the minimum distance between the
package edge and the inside of the pin be 100 mils (2.54 mm)
for the 40 mil (1.02 mm) diameter pins; 120 mils (3.05 mm)
from the package edge to the center of the pin as shown in
Figure 35.
0.100"
(2.54mm)
0.120"
(3.05mm)
Figure 35. Minimum Bend Radius of 40 Mil (1.02 mm)
Pins
1
2
10
11
17
16
15
14
13
12
ADDC02805SA
OR
ADDC02803SC
PS1
C1
+28VDC
28RTN
RLOAD
NOTE: VALUE OF C1 IS DEPENDENT ON SOURCE IMPEDANCE.
REFER TO SECTION ON SYSTEM INSTABILITY CONSIDERATIONS.
Figure 36. Typical Power Connections and External Parts for Converter
1
2
8
10
11
17
16
15
14
13
12
1
2
8
10
11
17
16
15
14
13
12
PS2
PS1
I
SHARE
C1
+28VDC
28RTN
+SENSE PS1
+SENSE PS2
–SENSE PS1
–SENSE PS2
RLOAD
V
OUT
+
V
OUT
–
NOTE: VALUE OF C1 IS DEPENDENT ON SOURCE IMPEDANCE.
REFER TO SECTION ON SYSTEM INSTABILITY CONSIDERATIONS.
ADDC02805SA
OR
ADDC02803SC
ADDC02805SA
OR
ADDC02803SC
Figure 37. Typical Connections for Paralleling Two Converters
MECHANICAL CONSIDERATIONS
When mounting the converter into the next higher level assembly,
it is important to ensure good thermal contact is made between
the converter and the external heat sink. Poor thermal connec-
tion can result in the converter shutting off, due to the tempera-
ture shutdown feature (Pin 9), or reduced reliability for the
converter due to higher-than-anticipated junction and case
temperatures. For these reasons the mounting tab locations
were selected to ensure good thermal contact is made near the
hot spots of the converter, which are shown in the shaded areas
of Figure 34.
Figure 34. Hot Spots (Shaded Areas) of DC/DC Converter
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