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參數(shù)資料
| 型號： | L6615N |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDIP8 |
| 封裝： | MINI, DIP-8 |
| 文件頁數(shù)： | 9/20頁 |
| 文件大小： | 394K |
| 代理商： | L6615N |
17/20
L6615
Figure 16. Offset Trimming
Because of the tolerance of the output voltage, it is not possible to delete completely the effect of the offset
on CGA pin on all the allowed output voltage range: if the trimming operation is performed at VOUT(MIN),
then on pin CGA the maximum residual voltage will be present at VOUT(MAX) and its value will be:
To simplify the procedure, the following step-by step process can be used:
s
a trimmer has to be placed between sense pins of each section: the value of the trimmer resistance
must be at least one order of magnitude higher than RG and it has to be set at one half of its range
(
δ=0.5);
s
once the application is running at a load defined by the designer based on the required sharing
accuracy, the master section has to be located;
s
on the slave sections it is then necessary to operate on the trimmer to make equal the output currents.
REFERENCE
[1] "L6910 - Adjustable step down controller with synchronous rectification" (Datasheet)
[2] "L6911 - 5 bit programmable step down controller with synchronous rectification" (Datasheet
I
LOAD
L6615
CS-
CS+
R
CGA
R
G
R
G
δ R
K
(1-δ) R
K
V
OUT+VSENSE
V
OUT
+
_
R
SNS
I
G
V
M
V
P
I
LOAD
L6615
CS-
CS+
R
CGA
R
G
R
G
δ R
K
(1-δ) R
K
V
OUT+VSENSE
V
OUT
+
_
R
SNS
I
G
V
M
V
P
R
CGA
V
OUT MAX
() VOUT MIN
()
–
()
12
δ
OPT
–
δ
OPT
R
K
δ
OPT
R
K
–
R
G
–
()
-----------------------------------------------------------------------------
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相關代理商/技術參數(shù) |
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|---|---|
| L6622-01 | 制造商:HAMAMATSU 制造商全稱:Hamamatsu Corporation 功能描述:130 KV MICROFOCUS X-RAY SOURCE |
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| L6-6330 | 制造商: 功能描述: 制造商:undefined 功能描述: |
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| L6668 | 功能描述:電流型 PWM 控制器 SMART PRIMARY CONTROLLER RoHS:否 制造商:Texas Instruments 開關頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
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