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參數(shù)資料
| 型號(hào)： | ZXCT1020E5TA |
| 廠商： | Diodes Inc |
| 文件頁(yè)數(shù)： | 2/14頁(yè) |
| 文件大?。?/td> | 1161K |
| 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(cè)方法： | 高端 |
| 精確度： | ±1% |
| 輸入電壓： | 2.5 V ~ 20 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類(lèi)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(yè)面： | 1478 (CN2011-ZH PDF) |
| 其它名稱(chēng)： | ZXCT1020E5DKR |
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ZXCT1020
Issue 1 - August 2007
2
www.zetex.com
?Zetex Semiconductors plc 2007
Absolute maximum ratings
NOTES:
(a) Subject to V
SENSE
+ never going 6V below V
B
.
(b)Subject to absolute maximum V
SENSE
not being exceeded.
(c) V
SENSE
is defined as the voltage difference across the sense resistor. and is the voltage across resistor R
SH
plus the
voltage between S+ and S-.
(d) V
SENSE
might need to be reduced when used with smaller values of R
SH
and at larger rails due to increased power dissipation.
Pin out information
Recommended operating conditions
Recommended resistor gain setting combinations
Voltage on V
B
with respect to GND pin
-0.5V to 20V
Voltage on S+
(a)
, S-
(b)
, OUT with respect to GND pin
-0.5V to V
B
+0.5V
V
SENSE
(c)
-0.5V to +2.5V
(d)
Junction temperature
-40癈 to125癈
Storage temperature
-55癈 to 150癈
Package power dissipation (T
amb
= 25癈) SOT23-5
300mW
Pin
Name
Pin function
1
S+
Positive sense input. Should be tied to positive side of sense resistor via
resistance (R
SH
) of the order of 150 to 1.5k.
2
GND
Ground and substrate connection of device.
3
OUT
Current output. A gain setting resistor (R
G
) referenced to GND should be
connected to this pin to set overall voltage gain of:
Gain = R
G
/R
SH
The resistance, R
G
, placed on out will set the ZXCT1020 output impedance equal
to R
G
. When driving low impedance loads both R
G
and R
SH
should be reduced.
4
V
B
Input voltage pin. Provides bias to current monitor and should be tied to the
rail whose current is being monitored.
5
S-
High impedance negative sense voltage input
Parameter
Min.
Max.
Units
V
SENSE+
Common-mode sense input range
2.5
20
V
V
B
Bias pin input voltage range
(*)
NOTES:
(*) For best performance V
B
and V
SENSE+
should be referred to the rail whose current is being measured.
2.5
20
V
V
SENSE
Differential sense Input voltage range
0
1.5
V
V
OUT
Output voltage range
0
V
SENSE-
- 1
V
R
SH
Shunt resistor value
120
2000
T
A
Ambient temperature range
-40
85
癈
Gain
R
SHUNT
R
GAIN
10
1.5k
15k
20
750
15k
50
300
15k
100
150
15k
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