LFT61B27I 汽車開環(huán)型霍爾電流傳感器
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產(chǎn)品說明：LFT61B27I 汽車開環(huán)型霍爾電流傳感器的初、次級之間是絕緣的，可用于測量直流、交流和脈沖電流。 The LFT61B27I automotive curr...
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LFT61B27I 汽車開環(huán)型霍爾電流傳感器的初、次級之間是絕緣的，可用于測量直流、交流和脈沖電流。
The LFT61B27I automotive current sensor is an open loop device based on the measuring principle of the hall effect, with a galvanic isolation between primary and secondary circuit. It provides accurate electronic measurement of DC, AC or pulsed currents.
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特點 |
● 采用開環(huán)霍爾原理
● 供電電壓低
● + 5 V DC工作電源
● 電流測量范圍±300A
● 工作溫度范圍：- 40 °C?<?T°?< + 125 °C
● 高測量精度,高線性度
● 低溫漂，低零漂
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電參數(shù)??Electrical data(Ta=25℃±5℃,RL=10KΩ,CL=10000PF) |
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????????型號?Type |
LFT61B27I |
單位 Unit |
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額定輸入電流(Ipn) |
±300 |
A |
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測量電流范圍(Ip) |
±300 |
A |
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額定輸出電壓 |
Vout?= (VCC?/5) ·?(V0?+ 0.00667?·?Ip) |
V |
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零點電壓(V0) Zero voltage |
2.5VCC±15mV ?@25℃±5℃ 2.5VCC±30mV ?@-40～125℃ |
V |
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測量精度 measurement accuracy |
2% ?@25℃±5℃ 3% ?@-40～125℃ |
? |
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電源電壓(VCC) ? |
4.5～5.5 |
V |
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功耗電流 Power Consumption |
≤10 |
mA |
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磁失調(diào)電壓 |
±10 （經(jīng)過±Ipn循環(huán)） |
mV |
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響應(yīng)時間 |
≤10 ?@100A/μS, 10%-90%，@CL=1nF(已內(nèi)置1nF電容) ??????????? |
uS |
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絕緣電壓 |
2.0 ?@ 50HZ,AC,1min |
KV |
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應(yīng)用??Applications |
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l?轉(zhuǎn)向助力系統(tǒng)
l?ABS防抱死制動系統(tǒng)
l?轉(zhuǎn)速
l?點火系統(tǒng)
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結(jié)構(gòu)參數(shù)??Mechanical dimension(for reference only) |
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l?端子定義
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1 |
G |
電源與輸出公共端 |
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2 |
+ |
5V電源 |
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3 |
M |
傳感器輸出 |
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4 |
NC |
懸空 |
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測試原理示意圖?Schematic diagram of test principle |
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開環(huán)霍爾傳感器工作原理示意圖
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使用說明??Directions for use |
1.?當待測電流從傳感器穿過，即可在輸出端測得電壓大小。(注意：錯誤的接線可能導(dǎo)致傳感器損壞)
When the current will be measured goes through a sensor, the voltage will be measured at the output end.
(Note: The false wiring may result in the damage of the sensor)
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2.?傳感器的輸出幅度可根據(jù)用戶需要進行適當調(diào)節(jié)。
Customs can adjust output amplitude of the sensor?by needs.?
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3.?可按用戶需求定制不同額定輸入電流和輸出電壓的傳感器。
Custom design in the different rated input current and the output voltage are available.
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l?UL94-V0.
l?EN60947-1:2004
l?IEC60950-1:2001
l?EN50178:1998
l?SJ 20790-2000
l?IEC 60068-2
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總體參數(shù)??General date |
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數(shù)值?Value |
單位?Unit |
符號?Symbol |
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工作溫度?Operating temperature |
-40 to +125 |
oC |
TA |
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儲存溫度?Storage temperature |
-40 to +125 |
oC |
TS |
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毛重(約) ?Mass(approx) |
64 |
g |
M |
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特性圖???Characteristics chart |
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?????輸入電流-輸出電壓特性
current-Output Voltage characteristic ????????????????????
? ? ? ? ? ? ? ? ? ? ? ????
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LFT61B27I?汽車開環(huán)型霍爾電流傳感器的初、次級之間是絕緣的，可用于測量直流、交流和脈沖電流。
The LFT61B27I?automotive current sensor is an open loop device based on the measuring principle of the hall effect, with a galvanic isolation between primary and secondary circuit. It provides accurate electronic measurement of DC, AC or pulsed currents.
|
測試原理示意圖?Schematic diagram of test principle |
???
開環(huán)霍爾傳感器工作原理示意圖
 |
?
|
結(jié)構(gòu)參數(shù) Mechanical dimension(for reference only) |
l 端子定義
|
1 |
G |
電源與輸出公共端 |
|
2 |
+ |
5V電源 |
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3 |
M |
傳感器輸出 |
|
4 |
NC |
懸空 |
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