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參數(shù)資料
| 型號(hào)： | ZXCT1008FTA |
| 廠商： | Diodes Inc |
| 文件頁(yè)數(shù)： | 4/8頁(yè) |
| 文件大?。?/td> | 511K |
| 描述： | IC CURRENT MONITOR 1% SOT23-3 |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 功能： | 電流監(jiān)控器 |
| 檢測(cè)方法： | 高端 |
| 精確度： | ±1% |
| 輸入電壓： | 2.5 V ~ 20 V |
| 電流 - 輸出： | 5mA |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類(lèi)型： | 表面貼裝 |
| 封裝/外殼： | TO-236-3，SC-59，SOT-23-3 |
| 供應(yīng)商設(shè)備封裝： | SOT-23-3 |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 產(chǎn)品目錄頁(yè)面： | 1478 (CN2011-ZH PDF) |
| 其它名稱(chēng)： | ZXCT1008FDKR |
ZXCT1008
Document number: DS33441 Rev. 6 - 2
4 of 8
www.diodes.com
January 2014
?Diodes Incorporated
ZXCT1008
Product Line of
Diodes Incorporated
Typical Characteristics (cont.)
Power Dissipation
The maximum allowable power dissipation of the device for normal
operation (P
MAX
), is a function of the package junction to ambient thermal
resistance (?/DIV>
JA
), maximum junction temperature (T
JMAX
), and ambient
temperature (T
AMB
), according to the
expression:
P
MAX
= (T
JMAX
T
AMB
) / ?/DIV>
JA
The device power dissipation, P
D
is given by the expression:
P
D
= I
OUT
(V
IN
-V
OUT
) W
Application Information
The following text describes how to scale a load current to an
output voltage.
V
SENSE
= V
IN
- V
LOAD
V
OUT
= 0.01 x V
SENSE
x R
OUT
1
E.g.
A 1A current is to be represented by a 100mV output voltage:
1) Choose the value of R
SENSE
to give 50mV >
V
SENSE
> 500mV at full load.
For example V
SENSE
= 100mV at 1.0A.
R
SENSE
= 0.1/1.0 => 0.1&.
2) Choose R
OUT
to give V
OUT
= 100mV, when
V
SENSE
= 100mV.
Rearranging
1
for Rout gives:
R
OUT
= V
OUT
/(V
SENSE
x 0.01)
R
OUT
= 0.1 / (0.1 x 0.01) = 100&
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