參數(shù)資料
型號(hào): ZXCT1010E5TA
廠商: Diodes Inc
文件頁(yè)數(shù): 5/9頁(yè)
文件大小: 184K
描述: IC CURRENT MONITOR 1% SOT-23-5
產(chǎn)品培訓(xùn)模塊: Designing with Zetex Current Monitors
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: 10mA
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: SC-74A,SOT-753
供應(yīng)商設(shè)備封裝: SOT-23-5
包裝: 標(biāo)準(zhǔn)包裝
產(chǎn)品目錄頁(yè)面: 1478 (CN2011-ZH PDF)
其它名稱: ZXCT1010DKR
ISSUE 10 - JULY 2007
ZXCT1010
5
The following lines describe 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 ohms.
2)Choose R
out
to give V
out
= 100mV, when V
sense
=
100mV.
Rearranging
1
for R
out
gives:
R
out
= V
out
/(V
sense
x 0.01)
R
out
= 0.1 / (0.1 x 0.01) = 100 ?/DIV>
TYPICAL CIRCUIT APPLICATION
POWER DISSIPATION
The maximum allowable power dissipation of the
device for normal operation (Pmax), is a function of
the package junction to ambient thermal resistance
(竕a), maximum junction temperature (Tjmax), and
ambient  temperature  (Tamb),  according  to  the
expression:
P
max
= (Tj
max
 T
amb
) / ?/DIV>
ja
The device power dissipation, P
D
is given by the
expression:
P
D
=I
out
.(V
in
-V
out
) Watts
Where R
load
represents any load including DC motors,
a charging battery or further circuitry that requires
monitoring,  R
sense
can  be  selected  on  specific
requirements of accuracy, size and power rating.
APPLICATIONS INFORMATION
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