LA02P021S03

LA02P CURRENT SENSORS 1/5 6 1601 Magnetic Proportion System / Compact size and High-speed response. Vcc = +3.3V LA02P Series RoHS ABSOLUTE MAXIMUM RATINGS Parameters Symbol Unit Value VDD V 6.5 ― ℃ 120 Iout mA ±1 ― kV 2 Supply voltage Jumper temperature Output current ESD rating （HBM: Human Body Model） Comment Recommend ; < ± 0.5mA C=100pF，R=1.5k Ω ISOLATION CHARACTERISTICS Parameters Symbol lnsulation voltage Vd Unit Value V ≧ AC3000V，50/60Hz，for 1minute (Sensing current 0.5mA) Comment Primary ⇔ Secondary Impulse withstand voltage Primary ⇔ Secondary Input waveform： ・Front time　1.2µs ・Time to half value　50µs ・single Vw kV 6 Clearance distance dCi mm 13.3 Primary ⇔ Secondary Creepage distance dCp mm 13.3 Primary ⇔ Secondary ― ― UL94 V-0 CTI V 150 Case material Comparative Tracking Index； （CTI） ENVIRONMENTAL AND MECHANICAL CHARACTERISTICS Parameters Value Symbol Unit Ambient operating temperature Ta ℃ － 40 ＋ 110 Ambient storage temperature TS ℃ － 40 ＋ 150 Mass m g 5.5 Internal magnetic core ― ― Ferrite MIN TYP Comment MAX SPECIFICATIONS Ta=+25℃， VDD=+3.3V， RL≧10MΩ Parameters Measurement current range Symbol Unit Value MIN TYP MAX LA02P021S03 － 21 21 LA02P035S03 － 35 35 － 54 54 － 85 85 LA02P054S03 If A LA02P085S03 51 Comment LA02P CURRENT SENSORS SPECIFICATIONS 2/5 6 1601 Ta=+25℃， VDD=+3.3V， RL≧10MΩ Parameters Maximum primary current（RMS） Symbol Unit Value MIN TYP MAX 2.97 3.3 3.63 Ip（RMS）max A Supply Voltage VDD V Number of primary turns Np T １ Primary Jumper resistance Rp mΩ 0.1 Current consumption（at If） IDD mA Offset voltage（at If=0A） ― 1.650 1.664 (1.565) 1.650 (1.735) (1.593) 1.650 (1.707) LA02P054S03 (1.608) 1.650 (1.692) LA02P085S03 (1.618) 1.650 (1.682) LA02P021S03 Vof V LA02P054S03 TCVof ± 3.5 ± 2.5 LA02P021S03 LA02P035S03 G LA02P054S03 mV/A LA02P085S03 Temperature coefficient 1 of Sensitivity （at Ta= － 40 ～＋ 110℃，Variation ratio to G（Ta=35℃） ） TCG1 Output Linearity（at 0... If） Output noise voltage 61.1 62.5 63.9 36.7 37.5 38.3 23.9 24.5 25.1 15.1 15.5 15.9 % εL %F.S. VNRMS mVrms VG-R ％ Ratiometric error of sensitivity Ratiometric error of offset voltage ± 0.4 －1 1 1.7 －1 1 LA02P021S03 － 0.8 0.8 LA02P035S03 － 0.6 0.6 － 0.6 0.6 － 0.6 0.6 LA02P054S03 Reference value after the flow soldering and over the lifetime of this product. ± 5.5 mV LA02P085S03 Sensitivity At factory shipment ± 9.0 LA02P021S03 LA02P035S03 ＊1 10 1.636 LA02P035S03 Temperature drift of offset voltage （at Ta= － 40 ～＋ 110℃，Variation from Vof （Ta=35℃），Ip=0A） 50 Comment Vof-R %F.S. LA02P085S03 Response time 1（at 90% of If ） Frequency bandwidth（－ 3dB） tr µs 1 CL=100pF BW kHz 300 CL=100pF ＊ 1 When Ip(RMS)max is bigger than the value of If, Ip(RMS)max restricts it to the value of If. STANDARDS IEC60950 ，UL508 ，CSA C22.2 No. 14 ※ Please refer to the another sheet about conditions of UL Recognition. FUNCTIONAL BLOCK DIAGRAM 52 LA02P CURRENT SENSORS 3/5 6 1601 CHARACTERISTIC CURVE (TYP) AND PRIMARY CURRENT DERATING CURVE Conditions：Mounted on the test board complying with the EIA/JEDEC Standards (EIA/JESD51.) CHARACTERISTICS DEFINITIONS ・Sensitivity G ［mV/A］ ， Offset voltage Vof ［V］ Sensitivity （G） is defined as slope of the approximate straight line by least squares method, using the data of the output voltage （Vout） when sweeping the measured current Ip at rated current range. Also Offset voltage （Vof） is defined as the intercept of the approximate straight line. ・Output linearity ε［％］ L Output linearity （εL） is defined as the ratio of maximum error voltage （Ve） to the full scale （F.S.）, where Vd is maximum difference between the Output voltage （Vout） and the approximate straight line calculated in the sensitivity and offset voltage definition； εL＝Ve／F.S.×100 ・When Ip(RMS)max is bigger than the value of If, Ip(RMS)max restricts it to the value of If. ・Ratiometric error of sensitivity VG-R ［％］ ， ratiometric error of Offset voltage Vof-R ［％］ Output of LA02P Series is ratiometric. Sensitivity （G） and Offset voltage （Vof） are proportional to Supply voltage （VDD） . ・Ratiometric error is defined as follows in the supply voltage range （2.97V＜VDD1＜3.63V） ; VG-R ＝100× ［ （G （VDD＝VDD1） ／G （VDD＝3.3V） ） － （VDD1／3.3） ］ ／ （VDD1／3.3） Vof-R ＝100× ［Vof （VDD＝VDD1） －Vof （VDD＝3.3V） × （VDD1／3.3） ］ ／F.S. 53 LA02P CURRENT SENSORS 4/5 TERMINAL DESCRIPTIONS Terminal number ① DATA_IO ② VDD ③ VSS ④ Vout ⑤ SCLK ⑥P ⑦N Test pin（connect to GND) Power supply（3.3V） GND（0V） Analog output Test pin（connect to GND) Input Output DIMENSIONS (mm) Terminals：Cu Plating for Terminals：Sn （100％） Package：RoHS compliant, halogen free Note1）The tolerances of dimensions without any mention are ± 0.1mm. RECOMMENDED THROUGH-HOLE LAYOUTS (mm) Note）If 2 or more trace layers are used as the current path, please make enough number of through-holes to flow current between the trace layers. 54 6 1601 LA02P CURRENT SENSORS 5/5 6 1601 TYPICAL APPLICATION （a）Please be placed the bypass capacitor 0.1μF as close as possible to the VDD and VSS pins of LA02P Series. （b）LA02P Series have a ratiometric output.　When received output by the A / D converter , it is possible to reduce the A / D 　 conversion error due to supply voltage fluctuations by setting a common voltage level of the A / D converter and supply voltage. 　 The resistive divider with R1 and R2 is required, if the reference voltage of the A / D converter is lower than ＋ 3.3V. （c）If necessary, please insert a low-pass filter to Vout. TYPE DESIGNATION ① Model（4 figures） LA02：Series ② Mounting configuration（1 figure） P：PCB Mounting type ③ Measurement current range（3 figures） Ex）035：35A 085：85A ④ Control power supply type（1 figure） S：Single supply ⑤ Power supply voltage（2 digits） RELIABILITY TEST Tested samples are pretreated as below before each reliability test: Desiccation : 125℃ /24h → Moisture Absorption : 85℃ /85%RH/168h → Flow : 1 time (260℃ , 10s) Criterion for determining Products whose drifts before and after the reliability tests do not exceed the values below are considered to be in spec. Sensitivity G (Ta=25℃ ) ：Within ± 1.5% (All model) Offset Voltage Vof (Ta=25℃ ) ：Within ± 100mV（LA02P021S03), Within ± 66mV（Other model) Output Linearity εL (Ta=25℃ ) ：Within ± 1% (All model) 55 Notices CURRENT SENSORS 1/1 3 1510 Important Notice 7. This product is not designed to resist radiation. 1. The content of this information is subject to change without vehicle equipment, safety devices, and so on) in which ・U se in liquids such as water, oil, chemical solutions, or organic solvents, and use in locations where the product will be exposed to such liquids. ・U se that involves exposure to direct sunlight, outdoor exposure, or dusty conditions. ・Use in locations where corrosive gases such as sea winds, Cl2, H2S, NH3, SO2, or NO2, are present. (Some product improves durability) ・U se in environments with strong static electricity or electromagnetic radiation. ・Use that involves placing inflammable material next to the product. ・Use of this product either sealed with a resin filling or coated with resin. ・Use of water or a water soluble detergent for flux cleaning. ・Use in locations where condensation is liable to occur. extremely high quality and high reliability is required, or if 8. D o not use or otherwise make available the TAMUTA the malfunction or failures of product could be cause loss of products or the technology described in this document for any human life, bodily injury. military purposes, including without limitation, for the design, prior notice for the purpose of improvements, etc. Ensure that you are in possession of the most up-to-date information when using this product. 2. T his product is intended to be used in general electronics applications (electric home appliances, business equipment, information equipment, communication terminal equipment, measuring devices, industrial equipment, and so on). This product is neither intended nor warranted for use in following equipment or devices: Special application (such as for medical devices, transportation equipment, traffic signal control equipment, fire and crime prevention equipment, aeronautics and space devices, nuclear power control, fuel control, in- Tamura Corporation shall not be held responsible for any development, use, stockpiling or manufacturing of mass damage incurred by customers or any third party when products destruction weapons (e.g. nuclear, chemical, or biological are used in special application, unless specifically permitted in weapons or missile technology products). When exporting this document. and re-exporting the products or technology described in this document, you should comply with the applicable export control 3. Tamura Corporation constantly strives to improve quality and laws and regulations and follow the procedures required by reliability, but malfunction or failures are bound to occur with such laws and regulations including, without limitation, Japan some probability in current sensor. To ensure that failures do -Foreign Exchange and Foreign Trade Control Law and U.S.- not cause accidents resulting in injury or death, fire accidents, Export Administration Regulations. The TAMURA products social damage, and so on, users are to thoroughly verify the and related technology should not be used for or incorporated safety of their designs in devices and/or systems. into any products or systems whose manufacture, use, or sale is prohibited under any applicable domestic or foreign laws or 4. The operation examples and circuit examples shown in this regulations. information are for reference purposes only, and Tamura Corporation disclaims all responsibility for any violations of 9. Please contact your TAMURA sales office for details as to industrial property rights, intellectual property rights and any environmental matters such as the RoHS compatibility of other rights owned by Tamura Corporation or third parties that Product. Please use TAMURA products in compliance with all these may entail. applicable laws and regulations that regulate the inclusion or 5. T he circuit examples and part constants listed in these use of controlled substances, including without limitation, the specifications are provided as reference for the verification EU RoHS Directive. TAMURA assumes no liability for damages of characteristics. The user is to perform design, verification, or losses occurring as a result of your noncompliance with and judgment under his or her own responsibility, taking into applicable laws and regulations. account the various conditions. 10. T  AMURA assumes no liability for damages or losses incurred by you or third parties as a result of unauthorized use of TAMURA 6. T he products are designed for use in environments where products. consumer electronics are commonly used. It is not designed for use in special environments such as listed below, and if such 11. T his document and any information herein may not be use is considered, the user is to perform thorough safety and reproduced in whole or in part without prior written permission reliability checks under his/her responsibility. from TAMURA. 9 Appli note CURRENT SENSORS 1/1 1 1412 Application notes 1. T he sensor uses polar electronic components. When the 1. High frequency primary current may result in excessive heating polarity of the power supply is mistaken, the sensor is damaged. in iron magnetic core and cause damage to internal circuitry; 2. Static electricity or excessive voltage can increase an offset for high frequency applications select current sensor with ferrite voltage in the Hall element, and cause offset voltage to change. core material. 2. If the measured current exceeds the rated current, magnetic Please exercise care in handling and application. core saturation will occur and the output voltage signal will not 3. In order to prevent the influence of noise, the use of twisted be linearly proportional to the measured current. cable or shielded cable for the output line is recommended 4. If using this device within a magnetic field generated by other devices, the specified accuracy may not be obtainable. 5. O ur products（several models are excluded ）are adjusted 1. For closed loop current sensors please insure the power supply with the trimming method by the measurement condition voltage is balanced, symmetrical, and, applied simultaneously （Load resistance, Power supply voltage）of specification to avoid potential increase in DC offset error. sheets. Therefore, characteristics（Offset, Output, etc.）and its 2. Maximum rated current measurement duration is timedependent. deviation may be changed in different circuit conditions from Maximum rated current applied in excess of the time limit can the measurement condition. All change characteristic items are result in damage to internal electronic circuitry; please consult not indicated on specification sheets. Tamura for assistance. 6. The performance of current sensors with through-hole（aperture） 3. When using a measurement resistor to convert current output is dependent on the position of the primary conductor. Tamura to voltage output select a resistor with stable temperature specifications are based on a primary conductor completely characteristic to insure accuracy of the output voltage. filling the through-hole（aperture）area. 4. Compensation current supplied to the secondary winding varies 7. T  he current sensor rated current in DC Amps. in proportion to the measured current based on the conversion 8. Please use mating connector with equivalent terminal plating ratio.（If/KN; KN ＝ secondary turns）Please insure the PSU material to insure proper operation and avoid possibility of has required current capacity to supply compensation current ‘galvanic corrosion’. to the secondary winding. 9. P lease do not store in high-temperature and high-humidity storage environment. Please use it after confirming soldering when it is kept for six months or more.（product soldered with 1. Compensation current supplied to the secondary winding varies substrate） 10. W e recommend performing a zero offset adjustment by in proportion to the measured current. Please insure the PSU measuring the offset voltage at startup. In continuously has required current capacity to supply compensation current to the secondary winding. operation for a few months, or at change of ambient temperature or humidity is large, we recommend regularly 2. T here is 450kHz ripple voltage present on the output and performing a zero offset adjustment at being idling（it is clear reference output voltage signals . An external capacitor maybe that the current is not apply）. added if necessary. 7