參數(shù)資料
型號(hào)： ZXCT1009T8
廠商： ZETEX PLC
元件分類： 電源管理
英文描述： HIGH-SIDE CURRENT MONITOR
中文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8
封裝： SOT-223, 8 PIN
文件頁(yè)數(shù)： 5/8頁(yè)
文件大小： 216K
代理商： ZXCT1009T8
ISSUE 3 - APRIL 2001
ZXCT1009
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
out1
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
V
in
Vin
Iout
Load
V
out
R
sense
R
load
R
out
ZXCT1009
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
(
θ
ja), maximum junction temperature (Tjmax), and
ambient temperature (Tamb), according to the
expression:
P
max
= (Tj
max
–
T
amb
) /
θ
ja
The device power dissipation, P
D
is given by the
expression:
P
D
=I
out
.(V
in
-V
out
) Watts
SM8
SOT23
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
相關(guān)PDF資料
PDF描述
ZXCT1010 ENHANCED HIGH-SIDE CURRENT MONITOR
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ZXCT1022 LOW OFFSET HIGH-SIDE CURRENT MONITOR
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ZXCT1009T8TA 功能描述:電流和電力監(jiān)控器、調(diào)節(jié)器 High Side Crnt Mtr RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Current Regulators 電源電壓-最大:48 V 電源電壓-最小:5.5 V 工作溫度范圍:- 40 C to + 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HPSO-8 封裝:Reel
ZXCT1010 制造商:ZETEX 制造商全稱:ZETEX 功能描述:Enhanced high-side current monitor
ZXCT1010_06 制造商:ZETEX 制造商全稱:ZETEX 功能描述:Enhanced high-side current monitor
ZXCT1010E 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC
ZXCT1010E5 制造商:Diodes Incorporated 功能描述:CURRENT MONITOR 1010 SOT-23-5-5 制造商:Diodes Incorporated 功能描述:CURRENT MONITOR, 1010, SOT-23-5-5 制造商:Diodes Incorporated 功能描述:IC HIGHSIDE CURRENT MONITOR 10mA SOT23-5; Supply Voltage:20V; Digital IC Case Style:SOT-23; No. of Pins:5; No. of Regulated Outputs:1; Operating Temperature Min:-40C; Operating Temperature Max:85C; Filter Terminals:Surface Mount ;RoHS Compliant: Yes
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