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參數資料
| 型號： | ZXCT1081E5TA |
| 廠商： | Diodes Inc |
| 文件頁數： | 9/11頁 |
| 文件大小： | 285K |
| 描述： | IC CURRENT MONITOR 3% SOT23-5 |
| 標準包裝： | 1 |
| 功能： | 電流監控器 |
| 檢測方法： | 高端 |
| 精確度： | ±3% |
| 輸入電壓： | 3 V ~ 40 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 |
| 供應商設備封裝： | SOT-23-5 |
| 包裝： | 標準包裝 |
| 產品目錄頁面： | 1478 (CN2011-ZH PDF) |
| 其它名稱： | ZXCT1081E5DKR |
ZXCT1081
ZXCT1081
Document number: DS32102 Rev. 1 - 2
9 of 11
www.diodes.com
March 2010
?Diodes Incorporated
Product Line of
Diodes Incorporated
R
SENSE
C
D
R
LIM
ZXCT1081
SENSE
+
SENSE
-
Figure 2 Protection/Error Sources for ZXCT1081
Capacitor CD provides high frequency transient decoupling when used with R
LIM
; typical values are of the order 10pF.
For best performance R
SENS
E should be connected as close to the SENSE+ (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 ZXCT1081 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 ZXCT1081 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 Zetex 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
OUT
= (V
SENSE
) xG + V
O(10)
Alternatively the load current can be expressed as:
I
L
=
V
OUT
V
O 10
GxR
SENSE
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相關代理商/技術參數 |
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| 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 |
| ZXCT1082E5TA | 功能描述:電流和電力監控器、調節器 2.7V TO 60V 0.6uA EXT GAIN RoHS:否 制造商:STMicroelectronics 產品: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 安裝風格:SMD/SMT 封裝 / 箱體:HPSO-8 封裝:Reel |
| ZXCT1083 | 制造商:DIODES 制造商全稱:Diodes Incorporated 功能描述:PRECISION HIGH VOLTAGE HIGH-SIDE CURRENT MONITORS |
| ZXCT1083E5TA | 功能描述:電流和電力監控器、調節器 HI-SIDE CURR MONITOR 1MA 2.7-60 1.23 RoHS:否 制造商:STMicroelectronics 產品: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 安裝風格:SMD/SMT 封裝 / 箱體:HPSO-8 封裝:Reel |
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