參數(shù)資料
型號: APA18T12
英文描述: HEADER,ST MALE,1RW,36PIN, .1"CTR,.025"PST,.23"GOLD TAIL
中文描述: 12Vin,75Watts,非隔離直流-直流轉(zhuǎn)換器的SIP波蘭
文件頁數(shù): 12/17頁
文件大?。?/td> 334K
代理商: APA18T12
Model: APA18T12 Series
Date: June 2004
SH 12 OF 17
Technical Reference Note
APA18T12 DC - DC Series
Preliminary
APPENDIX A6: OUTPUT TRIM REQUIREMENT
Output voltage adjustment is accomplished by connecting an external resistor between the Trim Pin and Ground
Pin terminals. Resistance and Output voltage relationship is established by Equation 1. If Trim pin is left open –
default V
O
= 0.75V
TRIM-UP EQUATION:
1000
75
.
10500
=
Vo
Rtrim
Where R
trim
is the resistance value in ohms and V
O
is the output voltage desired.
SENSE
Co2
Rtrim
LOAD
GND
TRIM
Co1
Vo
APA18
Figure 7. Trim UP test configuration (Pin Side Up)
V
O, set
(V)
0.75
1.2
1.5
1.8
2.5
3.3
5.0
Rtrim (
K.)
Open
22.33
13.0
9.0
5.0
3.12
1.47
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