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參數(shù)資料
| 型號： | ZXCT1080E5TA |
| 廠商： | Diodes Inc |
| 文件頁數(shù)： | 9/11頁 |
| 文件大?。?/td> | 166K |
| 描述： | IC CURRENT MONITOR 3% SOT23-5 |
| 特色產(chǎn)品： | ZXCT1080 - Current Monitor |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 功能： | 電流監(jiān)控器 |
| 檢測方法： | 高端 |
| 精確度： | ±3% |
| 輸入電壓： | 3 V ~ 60 V |
| 電流 - 輸出： | 1mA |
| 工作溫度： | -40°C ~ 125°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)品目錄頁面： | 1478 (CN2011-ZH PDF) |
| 其它名稱： | ZXCT1080E5DKR |
ZXCT1080
HIGH VOLTAGE HIGH-SIDE CURRENT MONITOR
ZXCT1080
Document number: DS33454 Rev. 4 - 2
9 of 11
www.diodes.com
December 2011
?Diodes Incorporated
Application Information (cont.)
Fig. 21 Protection/Error Sources for ZXCT1080
Capacitor C
D
provides high frequency transient decoupling when used with R
LIM
; typical values are of the order 10pF.
For best performance R
SENSE
should be connected as close to the S+ (and SENSE) pins; minimizing any series resistance
with R
SENSE
.
When choosing appropriate values for R
SENSE
a compromise must be reached between in-line signal loss (including potential
power dissipation effects) and small signal accuracy.
Higher values for R
SENSE
gives better accuracy at low load currents by reducing the inaccuracies due to internal offsets. For
best operation the ZXCT1080 has been designed to operate with V
SENSE
of the order of 50mV to 150mV.
Current monitors' basic configuration is that of a unipolar voltage to current to voltage converter powered from a single supply
rail. The internal amplifier at the heart of the current monitor may well have a bipolar offset voltage but the output cannot go
negative; this results in current monitors saturating at very low sense voltages.
As a result of this phenomenon the ZXCT1080 has been specified to operate in a linear manner over a V
SENSE
range of
10mV to 150mV range, however it will still be monotonic down to V
SENSE
of 0V.
It is for this very reason that Diodes has specified an input offset voltage (V
O(10)
) at 10mV. The output voltage for any V
SENSE
voltage from 10mV to 150mV can be calculated as follows:
( )
V
G
V
V
10
SENSE
OUT
+
?/DIV>
=
Alternatively the load current can be expressed as:
( )
GxR
V
V
I
SENSE
10
O
OUT
L
=
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| ZXCT1081 | 制造商:DIODES 制造商全稱:Diodes Incorporated 功能描述:HIGH VOLTAGE HIGH-SIDE CURRENT MONITOR |
| ZXCT1081_0704 | 制造商:ZETEX 制造商全稱:ZETEX 功能描述:High voltage high-side current monitor |
| ZXCT1081E5TA | 功能描述:電流和電力監(jiān)控器、調(diào)節(jié)器 7-40V Input 80uA 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 |
| ZXCT1081E5TA-CUT TAPE | 制造商:DIODES 功能描述:ZXCT1080 Series 500 kHz 80 uA 4.5 to 12 V High-Side Current Monitor - SOT-23-5 |
| ZXCT1082 | 制造商:DIODES 制造商全稱:Diodes Incorporated 功能描述:PRECISION HIGH VOLTAGE HIGH-SIDE CURRENT MONITORS |
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