參數(shù)資料
型號: ZXCT1008FTA
廠商: Diodes Inc
文件頁數(shù): 5/8頁
文件大?。?/td> 511K
描述: IC CURRENT MONITOR 1% SOT23-3
標準包裝: 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: TO-236-3,SC-59,SOT-23-3
供應(yīng)商設(shè)備封裝: SOT-23-3
包裝: 標準包裝
產(chǎn)品目錄頁面: 1478 (CN2011-ZH PDF)
其它名稱: ZXCT1008FDKR
 
ZXCT1008  
Document number: DS33441 Rev. 6 - 2 
5 of 8
www.diodes.com
January 2014
?Diodes Incorporated 
ZXCT1008
 Product Line of
Diodes Incorporated
 
Application Information (cont.) 
 
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.
 
n additional resistor, R
LIM
 can be added in series with R
OUT
 (as
below), to limit the current from I
OUT
. Any circuit connected to V
OUT
 
will be protected from input voltage transients. This can be of
particular use in automotive applications where load dump and other
common transients need to be considered. The Zener Z1 provides
additional protection for local dump, reverse battery and high
voltage transient incidents.
 
ssuming the worst case condition of V
OUT
 = 0V; providing a low
impedance to a transient, the minimum value of R
LIM
is given by:
 
  R
LIM(min)
 = (V
PK
  V
MAX)/IPK
 
 
V
PK
 = Peak transient voltage to be withstood
V
MAX
 = Maximum working voltage = 20V
I
PK
 = Peak output current = 40mA
 
The maximum value of R
LIM
 is set by V
IN(MIN)
, V
OUT(MAX)
and the
dropout voltage (see transfer characteristic on page 3) of the
ZXCT1008:
 
  R
LIM(MAX)
= R
OUT
[V
IN(MIN)
  (V
DP
 + V
OUT(MAX)
)]/V
OUT(MAX)
 
 
V
I
N(MIN)
= Minimum Supply Operating Voltage
V
DP
 = Dropout Voltage
V
OUT(MAX)
= Maximum Operating Output Voltage
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  Typical Automotive Circuit Application
ZXCT1008
VSENSE+
VSENSE-
IOUT
RSENSE
Rlim
R
Vin
To load
Vout
Rload
Z1
 
Figure 1.0
ZXCT1008 with additional current limiting Resistor R
LIM
 and Zener
Z1.
 
 
 
 
 
 
 
 
 
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