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參數(shù)資料
| 型號： | MHV283R3S |
| 廠商： | CRANE ELECTRONICS INC |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | DC/DC CONVERTERS 28 VOLT INPUT |
| 中文描述： | 1-OUTPUT 10 W DC-DC REG PWR SUPPLY MODULE |
| 文件頁數(shù)： | 5/14頁 |
| 文件大小： | 219K |
| 代理商： | MHV283R3S |
TRIM – SINGLE OUTPUT MODELS ONLY
Formula Values by Model
3.3V
5V
A
3.7
3.7
B
10
10
12V
14
30
15V
18.2
30
PoInput
0
o
180
o
CoInput
Sync.
Positive
Output
Positive
Negative
Feedback Isolator
Feedback Isolator
PWM CM
Controller
PWM CM
Controller
Trim down: R
T
(k
) =
(
(V
o
–
2.5)
)
A
–
B
V
o nominal
–
V
0
Trim up:
R
T
(k
) =
(
2.5A
)
–
B
V
o
–
V
o nominal
V
o
= desired output voltage
Positive Input
1
10
Input Common
MHV
2
4
Case*
*The case ground connection should be as low an impedance as possible to minimize EMI.
Direct contact of baseplate to chassis ground provides the lowest impedance.
Chassis Ground
6, 7, 8
Positive Input
1
5
28V
Input Common
FMC-461
or FMH-461
EMI FILTER
Positive Output
Output Common
3
M
ODEL
% V
OUT
N
OMINAL
106
102
R
TRIM (
(R
T
) k ohms
110
95
90
80
MHV283R3S
MHV2805S
MHV2812S
MHV2815S
18
36
128
4
n/a
n/a
8
20
81
23
5
n/a
n/a
19
116
177
67
11
0.3
21
122
255
104
28
5
MHV SERIES
15 WATT
DC/DC C
ONVERTERS
DIAGRAMS
F
IGURE
1: MHV T
RIPLE
B
LOCK
D
IAGRAM
F
IGURE
3: EMI F
ILTER
C
ONNECTION
Positive Input
1
9
2
10
28V
Sync In
Inhibit (pin 8 on triple
output models)
Input Common
MHV
F
IGURE
4: MHV S
INGLE
O
UTPUT
T
RIM
Notes
If calculated result is a negative value, the desired output voltage is outside the allowed trim range.
Calculated values of R
are ±15%.
When trimming up, do not exceed the maximum output power.
When trimming down, do not exceed the maximum output current.
Calculated Trim
Quick Reference Trim Table
3
TRIM
R
T
5
4
+V
O
OUTPUT
COMMON
MHV
SINGLE
OUTPUT
TRIM DOWN
TRIM UP
F
IGURE
2:T
YPICAL
C
ONNECTIONS
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| MHV283R3S/883 | 制造商:CRANE 制造商全稱:CRANE 功能描述:MHV Single, Dual and Triple DC/DC Converters |
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