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參數資料
| 型號： | ZXCT1032N8TA |
| 廠商： | Diodes Inc |
| 文件頁數： | 7/10頁 |
| 文件大?。?/td> | 340K |
| 描述： | IC CURRENT MONITOR 8SOIC |
| 標準包裝： | 1 |
| 功能： | 電流監控器 |
| 檢測方法： | 高端 |
| 輸入電壓： | 9.5 V ~ 21 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應商設備封裝： | 8-SOP |
| 包裝： | 標準包裝 |
| 產品目錄頁面： | 1478 (CN2011-ZH PDF) |
| 其它名稱： | ZXCT1032N8DKR |
ZXCT1032
Issue 4 - June 2007
7
www.zetex.com
?Zetex Semiconductors plc 2007
2 The output voltage also increases due to the load current powering up the load and charging
any capacitance. After the initial soft start (load current stabilizing) the timing capacitor
charges up to 4V and the device enters its normal mode of operation. The external MOSFET
will be now fully enhanced minimizing any serial voltage drop.
The ZXCT1032 has now entered its over-current detector mode; it is effectively transparent
to the load until the current monitor output exceeds the trip point.
3 Fuse operation is provided by the trip comparator whose threshold voltage is set by V
ISET
(internally nominally 2.1V, although this threshold can easily be overdriven). As the load
current increases, so does the monitor voltage. When the current monitor output voltage
exceeds V
ISET
, the trip comparator output goes high and sets the latch with the following
results:
a The output drive is disabled.
b The open collector Flag output goes low to indicate a fault condition.
c The 200A current source is turned off and C
T
starts to discharge slowly via a 3.3A current
source.
ZXCT1032 Normal Operation
0
2
4
6
8
10
12
14
16
18
20
0
5
10
15
20
Time ms
0
0.2
0.4
0.6
0.8
1
AD
IN+
= 18V
SENSE
= 0.2?/DIV>
T
= 220nF
ISET
= 2.1V
rip current = 1A
10*V
SENSE
I ET
L AD
ZXCT1032 Timing in over-current condition
0
0.5
1
1.5
2
2.5
0
5
1
0
0
1
0
5
0
Time (ms)
0
0.5
1
1.5
2
2.5
V
IN+
= 18 V
R
SENSE
= 0.2
I
LOAD
> 1 A
C
T
= 220 nF
V
ISET
= 2.1 V
Trip current = 1 A
V
ISET
V
CT
I
LOAD
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相關代理商/技術參數 |
參數描述 |
|---|---|
| ZXCT1032N8TA-CUT TAPE | 制造商:DIODES 功能描述:ZXCT1032 Series 2.5 uA 9.5 to 21 V Controller and Electronic Fuse - SOIC-8 |
| ZXCT1041 | 制造商:ZETEX 制造商全稱:ZETEX 功能描述:Bidirectional precision high-side current monitor |
| ZXCT1041E5TA | 功能描述:電流和電力監控器、調節器 Bi-Direct High Side 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 |
| ZXCT1050 | 制造商:DIODES 制造商全稱:Diodes Incorporated 功能描述:Precision wide input range current monitor |
| ZXCT1050E5TA | 功能描述:電流和電力監控器、調節器 Wide CMR Curr. Mon. 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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