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型号： AEH30A24-6
元件分类： 电源模块
英文描述： 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
文件页数： 19/38页
文件大小： 517K
代理商： AEH30A24-6
A
A
A E
E
E H
H
H 2
2
2 4
4
4 V
V
V IIIIn
n
n p
p
p u
u
u tttt H
H
H a
a
a llllffff--B
B
B rrrriiiic
c
c k
k
k S
S
S e
e
e rrrriiiie
e
e s
s
s P
P
P o
o
o w
w
w e
e
e rrrr C
C
C o
o
o n
n
n v
v
v e
e
e rrrrtttte
e
e rrrrs
s
2
2 ....5
5
5 V
V
V,,,, 3
3
3 ....3
3
3 V
V
V,,,, 5
5
5 V
V
V S
S
S iiiin
n
n g
g
g lllle
e
e O
O
O u
u
u ttttp
p
p u
u
u tttt,,,, 5
5
5 0
0
0 --1
1
1 5
5
5 0
0
0 W
W
-26-
USA
Europe
Asia
TEL:
1-760-930-4600
44-(0)1384-842-211
852-2437-9662
FAX:
1-760-930-0698
44-(0)1384-843-355
852-2402-4426
www.astec.com
imum overvoltage trip point. Note that at ele-
vated output voltages the maximum power
rating of the module remains the same, and
the output current capability will decrease
correspondingly.
Output T
Output Trimming
rimming
Users can increase or decrease the output volt-
age set point of a module by connecting an
external resistor between the TRIM pin and
either the SENSE (+ ) or SENSE ( - ) pins. The
trim resistor should be positioned close to the
module. If not using the trim feature, leave
the TRIM pin open.
Trimming up by more than 10% of the nominal
output may damage the converter or trig the
OVP protection. Trimming down more than
10% can cause the converter to regulate
improperly. Trim down and trim up circuits and
the corresponding configuration are shown in
Figure 10 to Figure 15 next page.
Note that at elevated output voltages the
maximum power rating of the module
remains the same, and the output current
capability will decrease correspondingly.
Vo(100+y)
Radj-up =
(100+2y)
1.26y
y
-
+Vin
-Vin
CNT
Case
+Vout
-Vout
Sense(+)
Trim
Sense(–)
Radj-up
RLOAD
Where y is the adjusting percentage of the voltage.
0 < y < 10
Radj-up is in k
.
Fig.10 Circuit and Equation to Trim Up
0
10
20
30
40
50
60
70
80
90
100
01
234
5
678
9
10
% Change In Output Voltage (y)
Adjustment
Resistor
Value
(k
)
Fig.12 Resistor Selection for 2.5Vout Trim Up
% Change In Output Voltage y
Adjustment
Resistor
Value
(k
)
0
20
40
60
80
100
120
140
160
180
200
01
23
45
67
89
10
Fig.13 Resistor Selection for 3.3Vout Trim Up
% Change In Output Voltage (y)
Adjustment
Resistor
Value
(k
)
0
30
60
90
120
150
180
210
240
270
300
012
3
4567
89
10
Fig.14 Resistor Selection for 5Vout Trim Up
Radj-down =
where y is the adjusting percentage of the voltage.
0 < y < 10
Radj-down is in k
.
Radj-down
RLOAD
100
y
- 2
+Vin
-Vin
CNT
Case
+Vout
-Vout
Sense(+)
Trim
Sense(–)
Fig.11 Circuit and Equation to Trim Down
% Change In Output Voltage (y)
Adjustment
Resistor
Value
(k
)
0
10
20
30
40
50
60
70
80
90
100
01
23
456
78
9
10
Fig.15 Resistor Selection for Trim Down
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