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參數(shù)資料
| 型號： | ZXCT1011E5TA |
| 廠商： | Diodes Inc |
| 文件頁數(shù)： | 7/8頁 |
| 文件大?。?/td> | 289K |
| 描述： | IC CURRENT MONITOR 1% SOT23-5 |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 功能： | 電流監(jiān)控器 |
| 檢測方法： | 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： | ZXCT1011E5DKR |
ZXCT1011
Issue 1- July 2005
7
www.zetex.com
?Zetex Semiconductors plc 2005
Application information (cont.)
Minimum operating voltage
The minimum operating voltage of the ZXCT1011 is 2.5V and is defined as the difference between
V
sense+
and the I
out
pin. It must be ensured that sufficient headroom is given for the operation of
the device when considering R
out
.
Figure 2 Considerations for supply rail
Voltage across device 2.5V
V
in
- V
out
2.5V
Where V
out
= I
out
x R
out
At low supply voltages and high Vsense measurements, special care must be taken to ensure the
correct operation.
The circuit in figure 2.0 shows a ZXCT1011 operating from 10V supply rail. The minimum
operating voltage of the ZXCT1011 is 2.5V. This allows a maximum output voltage of 7.5V to be
set at V
out
. A 3k resistor on the output would draw a maximum 2.5mA from Iout. - See minimum
usable supply voltage graph on page 4.
V
sense+
ZXCT
1011
sense-
V
V
in
R
sense
load
To
I
out
2
5
4
3.3K
V
out
R
shunt
3
R
R
shunt
120R
= 10V
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