ACS712
Fully Integrated, Hall Effect-Based Linear Current Sensor IC with 2.1 kVRMS Voltage Isolation and a Low-Resistance Current Conductor全集成，霍爾效應(yīng)的線性電流傳感器IC，具有2.1 kVRMS電壓絕緣及低電阻電流導(dǎo)體
Features特點(diǎn)
- Low-noise analog signal path低噪聲模擬信號路徑
- Device bandwidth is set via the new FILTER pin器件的帶寬是通過設(shè)置新的篩選器引腳
- 5 μs output rise time in response to step input current 5μs的輸出響應(yīng)上升時(shí)間步輸入電流
- 80 kHz bandwidth 80 kHz帶寬
- Total output error 1.5% at T A = 25°C總輸出錯(cuò)誤1.5％在T = 25℃
- Small footprint, low-profile SOIC8 package小尺寸，低厚度SOIC8封裝
- 1.2 mΩ internal conductor resistance 1.2mΩ的內(nèi)部導(dǎo)體電阻
- 2.1 kV RMS minimum isolation voltage from pins 1-4 to pins 5-8 2.1千伏RMS從引腳1-4最小絕緣電壓引腳5-8
- 5.0 V, single supply operation 5.0 V，單電源供電
- 66 to 185 mV/A output sensitivity 66至185 mV / A輸出靈敏度
- Output voltage proportional to AC or DC currents輸出電壓成正比的交流或直流電流
- Factory-trimmed for accuracy工廠校準(zhǔn)的準(zhǔn)確性
- Extremely stable output offset voltage極度穩(wěn)定的輸出偏移電壓
- Nearly zero magnetic hysteresis幾乎為零的磁滯
- Ratiometric output from supply voltage電源電壓的成比例輸出
Description說明
The Allegro? ACS712 provides economical and precise solutions for AC or DC current sensing in industrial, commercial, and communications systems.在Allegro ? ACS712提供，以及通信系統(tǒng)經(jīng)濟(jì)和精確的解決方案的商業(yè)，交流或直流電流檢測工業(yè)。 The device package allows for easy implementation by the customer. Typical applications include motor control, load detection and management, switched-mode power supplies, and overcurrent fault protection.該器件封裝便于客戶輕松實(shí)施的。典型應(yīng)用包括電動(dòng)機(jī)控制，載荷檢測和管理，開關(guān)式電源和過電流故障保護(hù)。 The device is not intended for automotive applications.該設(shè)備不適合汽車應(yīng)用。
The device consists of a precise, low-offset, linear Hall sensor circuit with a copper conduction path located near the surface of the die.該器件具有精確的低偏置線性霍爾傳感器電路的死與銅的表面?zhèn)鲗?dǎo)路徑附近。 Applied current flowing through this copper conduction path generates a magnetic field which is sensed by the integrated Hall IC and converted into a proportional voltage.外加電流路徑流經(jīng)該銅制電流產(chǎn)生的磁場是感覺到被集成霍爾IC及電壓轉(zhuǎn)換成比例。 Device accuracy is optimized through the close proximity of the magnetic signal to the Hall transducer.器件精確度優(yōu)化，通過將磁性信號靠近的規(guī)定向霍爾傳感器。 A precise, proportional voltage is provided by the low-offset, chopper-stabilized BiCMOS Hall IC, which is programmed for accuracy after packaging.精確的，成比例的電壓由低偏移，斬波穩(wěn)定的BiCMOS霍爾IC，這是包裝之后進(jìn)行編程的準(zhǔn)確性。
The output of the device has a positive slope (>V IOUT(Q) ) when an increasing current flows through the primary copper conduction path (from pins 1 and 2, to pins 3 and 4), which is the path used for current sensing.該器件的輸出具有正斜率（“V 輸出電流（Q）的 ）當(dāng)越來越多的電流感應(yīng)電流流經(jīng)的主要銅制電流路徑（從引腳1和2，到引腳3和4）所使用的路徑，這是。 The internal resistance of this conductive path is 1.2 mΩ typical, providing low power loss.該傳導(dǎo)通路的內(nèi)電阻為1.2mΩ的這個(gè)典型，具有較低的功率損耗。 The thickness of the copper conductor allows survival of the device at up to 5× overcurrent conditions.售票員厚度的銅允許5 ×的過電流條件下生存的設(shè)備高達(dá)。 The terminals of the conductive path are electrically isolated from the sensor IC leads (pins 5 through 8).傳導(dǎo)通路的接線端的是電氣隔離的傳感器芯片引腳（引腳5到8）。 This allows the ACS712 current sensor IC to be used in applications requiring electrical isolation without the use of opto-isolators or other costly isolation techniques.這使得ACS712電流傳感器是采用技術(shù)隔離在其他昂貴的應(yīng)用要求或未經(jīng)使用的電氣隔離光電隔離器。
The ACS712 is provided in a small, surface mount SOIC8 package.該ACS712采用小型的表面安裝SOIC8封裝。 The leadframe is plated with 100% matte tin, which is compatible with standard lead (Pb) free printed circuit board assembly processes.引腳架鍍以100％霧錫，這是流程兼容與標(biāo)準(zhǔn)無鉛（Pb）印刷電路板組裝。 Internally, the device is Pb-free, except for flip-chip high-temperature Pb-based solder balls, currently exempt from RoHS.在內(nèi)部，該器件是無鉛，除倒裝芯片的高溫含鉛焊球，目前符合RoHS豁免。 The device is fully calibrated prior to shipment from the factory.該設(shè)備完全出廠前校準(zhǔn)的。 Allegros products are not to be used in life support devices or systems, if a failure of an Allegro product can reasonably be expected to cause the failure of that life support device or system, or to affect the safety or effectiveness of that device or system. Allegro的產(chǎn)品不得用于生命支持設(shè)備或系統(tǒng)，如果一個(gè)產(chǎn)品失敗的快板可以合理地預(yù)期會(huì)導(dǎo)致系統(tǒng)發(fā)生故障，生命支持設(shè)備或，或影響到安全或系統(tǒng)的有效性該設(shè)備或。