HO 25-P/SP33

Current Transducer HO-P/SP33 series IPN = 6, 10, 25 A Ref: HO 6-P/SP33, HO 10-P/SP33, HO 25-P/SP33 For the electronic measurement of current: DC, AC, pulsed..., with galvanic separation between the primary and the secondary circuit. Features Applications ●● Hall effect measuring principle ●● AC variable speed drives ●● Multirange current transducer through PCB ●● Static converters for DC motor drives pattern lay-out ●● Battery supplied applications ●● Galvanic separation between primary and secondary circuit ●● Uninterruptible Power Supplies (UPS) ●● Insulated test voltage 4300 V ●● Switched Mode Power Supplies (SMPS) ●● Low power consumption ●● Power supplies for welding applications ●● Extremely low profile 12 mm ●● The solar inverter on DC side of the inverter (MPPT) ●● Fixed offset & sensitivity ●● Combiner box. ●● Over-current detect 2.63 × IPN (peak value) ●● Memory check. Standards ●● EN 50178: 1997 Special feature ●● IEC 61010-1: 2010 ●● Single power supply 3.3 V. ●● IEC 61326-1: 2012 ●● UL 508: 2010. Advantages ●● Small size and space saving Application Domain ●● Only one design for wide primary current range ●● Industrial. ●● High immunity to external interference ●● 8 mm creepage /clearance ●● Fast response. N°74.54.09.033.0, N°74.54.13.033.0, N°74.54.19.033.0 23October2014/Version 2 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice Page 1/12 www.lem.com  HO-P/SP33 series Absolute maximum ratings Parameter Symbol Unit Value Supply voltage (not operating) UC V 6.5 Primary conductor temperature TB °C 125 UESD kV 2 ESD rating, Human Body Model (HBM) Stresses above these ratings may cause permanent damage. Exposure to absolute maximum ratings for extended periods may degrade reliability. UL 508: Ratings and assumptions of certification File # E189713 Volume: 2 Section: 5 Standards ●● CSA C22.2 NO. 14-10 INDUSTRIAL CONTROL EQUIPMENT - Edition 11 - Revision Date 2011/08/01 ●● UL 508 STANDARD FOR INDUSTRIAL CONTROL EQUIPMENT - Edition 17 - Revision Date 2010/04/15 Ratings Parameter Symbol Primary involved potential Unit Value V AC/DC 600 Max surrounding air temperature TA °C 105 Primary current IP A According to series primary currents Secondary supply voltage UC V DC 3.3 Output voltage Vout V 0 to 3.3 Conditions of acceptability When installed in the end-use equipment, consideration shall be given to the following: 1 - These devices have been evaluated for overvoltage category III and for use in pollution degree 2 environment. 2 - A suitable enclosure shall be provided in the end-use application. 3 - The terminals have not been evaluated for field wiring. 4 - These devices have been evaluated for use in 105 °C maximum surrounding air temperature. 5 - The secondary (Sensing) circuit is intended to be supplied by a Isolated Secondary Circuit - Limited voltage circuit defined by UL 508 paragraph 32.5. The maximum open circuit voltage potential available to the circuit and overcurrent protection shall be evaluated in the end use application. 6 - These devices are intended to be mounted on a printed wiring board of end-use equipment. The suitability of the connections (including spacings) shall be determined in the end-use application. 7 - Any surface of polymeric housing have not been evaluated as insulating barrier. 8-L  ow voltage circuits are intended to be powered by a circuit derived from an isolating source (such as a transformer, optical isolator, limiting impedance or electro-mechanical relay) and having no direct connection back to the primary circuit (other than through the grounding means). Marking Only those products bearing the UL or UR Mark should be considered to be Listed or Recognized and covered under UL’s Follow-Up Service. Always look for the Mark on the product. Page 2/12 23October2014/Version 2 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice www.lem.com  HO-P/SP33 series Insulation coordination Parameter Symbol Unit Value Rms voltage for AC isolation test 50/60 Hz/1 min 1) Ud kV 4.3 Impulse withstand voltage 1.2/50 µs ÛW kV 8 Partial discharge extinction rms voltage @ 10 pC Ue V 1650 Clearance (pri. - sec.) dCI mm 8 Shortest distance through air Creepage distance (pri. - sec.) dCp mm 8 Shortest path along device body Comment V0 according to UL 94 Case material Comparative tracking index CTI V 600 Application example - - 600 V CAT III PD2 Reinforced insulation, non uniform field according to EN 50178 Application example - - 300 V CAT III PD2 Reinforced insulation, non uniform field according to IEC 61010 Application example - - 1000 V CAT III PD2 Simple insulation, non uniform field according to EN 50178, IEC 61010 Symbol Unit Min Ambient operating temperature TA °C -40 105 Ambient storage temperature TS °C -40 105 Environmental and mechanical characteristics Parameter Surrounding temperature according to UL 508 Mass Typ °C m g Max Comment 105 10 Note: 1) Voltage of Retention pins has to be consider. If it is same as primary electrical potential, insulation is no issue. If it is same as secondary electrical potental, insulation of primary bus bar has to be considered. Page 3/12 23October2014/Version 2 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice www.lem.com  HO-P/SP33 series Electrical data IPN = 6 A At TA = 25°C, UC = +3.3 V, NP = 1 turn, RL = 10 KΩ unless otherwise noted (see Min, Max, typ. definition paragraph in page 7). Parameter Symbol Unit Primary nominal rms current IPN A Primary current, measuring range IPM A Number of primary turns NP Supply voltage UC V Current consumption IC mA Reference voltage Vref V External reference voltage Vref V Output voltage range @ IPM Vout - Vref V Output voltage @ IP = 0 A Vout V Electrical offset voltage VOE mV Min Typ Comment Max 6 -20 20 1,2,3 3.14 3.3 3.46 25 1.636 1.65 1.664 Internal reference 0.5 1.85 @ UC = 3.3 ≈ 3.46 V 0.5 1.7 @ UC = 3.14 ≈ 3.3 V -1.15 1.15 Vref + VOE -7 7 ±170 -20 °C .. 85 °C Internal reference ±190 -40 °C .. 105 °C Internal reference ±0.14 -40 °C .. 105 °C Temperature coefficient of Vref TCVref ppm/K Temperature coefficient of VOE TCVOE mV/K Theoretical sensitivity Gth mV/A Sensitivity error εG % ±0.85 TCG ppm/K ±250 Linearity error 0 .. IPN εL % of IPN ±0.5 @ UC = 3.3 V Linearity error 0 .. IPM εL % of IPM ±0.8 @ UC = 3.3 V %/% ±0.4 Gain error per UC drift VOM mV ±3 Reaction time @ 10 % of IPN tra µs 2 di/dt = IPN/µs Response time @ 90 % of IPN tr µs 3.5 di/dt = IPN/µs Frequency bandwidth (-3 dB) BW kHz Output rms voltage noise (spectral density) (DC .. 100 kHz) eno µV/√Hz Output voltage noise (DC .. 20 MHz) Vno mVpp Temperature coefficient of G Gain error with respect to UC ±10 % Magnetic offset voltage @ IP = 0 after 2.5 × IPN Over-current detect V 460 mV/ IPN @ UC = 3.3 V 76.67 Factory adjustement 250 18.9 40 2.6 × IPN 2.9 × IPN 3.2 × IPN peak value Accuracy @ IPN X % of IPN ±1.35 εG + εL Accuracy @ IPN @ TA = +85 °C X % of IPN ±4.68 See formula note 1) Accuracy @ IPN @ TA = +105 °C X % of IPN ±5.79 See formula note 1) Note: 1) Accuracy @ IP and XTA = ± [X + (TCG/10000) · (TA - 25) + TCVOE · 100 · (TA -25) / (Gth · IP)]. Page 4/12 23October2014/Version 2 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice www.lem.com  HO-P/SP33 series Electrical data IPN = 10A At TA = 25°C, UC = +3.3 V, NP = 1 turn, RL = 10 KΩ unless otherwise noted (see Min, Max, typ. definition paragraph in page 7). Parameter Unit Primary nominal rms current IPN A Primary current, measuring range IPM A Number of primary turns NP Supply voltage UC V Current consumption IC mA Reference voltage Vref V External reference voltage Vref V Output voltage range @ IPM Vout - Vref V Output voltage @ IP = 0 A Vout V Electrical offset voltage VOE mV Temperature coefficient of Vref TCVref ppm/K Temperature coefficient of VOE TCVOE mV/K Theoretical sensitivity Gth mV/A Sensitivity error εG % ±0.85 TCG ppm/K ±250 Linearity error 0 .. IPN εL % of IPN ±0.5 @ UC = 3.3 V Linearity error 0 .. IPM εL % of IPM ±0.8 @ UC = 3.3 V %/% ±0.4 Gain error per UC drift VOM mV ±3 Reaction time @ 10 % of IPN tra µs 2 di/dt = IPN/µs Response time @ 90 % of IPN tr µs 3.5 di/dt = IPN/µs Frequency bandwidth (-3 dB) BW kHz Output rms voltage noise (spectral density) (DC .. 100 MHz) eno µV/√Hz Output voltage noise (DC .. 20 MHz) Vno mVpp Temperature coefficient of G Gain error with respect to UC ±10 % Magnetic offset voltage @ IP = 0 after 2.5 × IPN Over-current detect Min Comment Symbol Typ Max 10 -25 25 1,2,3 V 3.14 3.3 3.46 25 1.636 1.65 1.664 Internal reference 0.5 1.85 @ UC = 3.3 ≈ 3.46 V 0.5 1.7 @ UC = 3.14 ≈ 3.3 V -1.15 1.15 Vref + VOE -5 5 ±170 -20 °C .. 85 °C Internal reference ±190 -40 °C .. 105 °C Internal reference ±0.080 -40 °C .. 105 °C 460 mV/ IPN, @ UC = 3.3 V 46 Factory adjustement 250 10.15 30 2.6 × IPN 2.9 × IPN 3.2 × IPN peak value Accuracy @ IPN X % of IPN ±1.35 εG + εL Accuracy @ IPN @ TA = +85 °C X % of IPN ±3.9 See formula note 1) Accuracy @ IPN @ TA = +105 °C X % of IPN ±4.75 See formula note 1) Note: 1) Accuracy @ IP and X TA = ± [X + (TCG/10000) · (TA - 25) + TCVOE · 100 · (TA -25) / (Gth · IP)]. Page 5/12 23October2014/Version 2 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice www.lem.com  HO-P/SP33 series Electrical data IPN = 25 A At TA = 25°C, UC = +3.3 V, NP = 1 turn, RL = 10 KΩ unless otherwise noted (see Min, Max, typ. definition paragraph in page 7). Parameter Symbol Unit Primary nominal rms current IPN A Primary current, measuring range IPM A Number of primary turns NP Supply voltage UC V Current consumption IC mA Reference voltage Vref V External reference voltage Vref V Output voltage range @ IPM Vout - Vref V Output voltage @ IP = 0 A Vout V Electrical offset voltage VOE mV Min Typ Comment Max 25 -62.5 62.5 1,2,3 3.14 3.3 3.46 25 1.636 1.65 1.664 Internal reference 0.5 1.85 @ UC = 3.3 ≈ 3.46 V 0.5 1.7 @ UC = 3.14 ≈ 3.3 V -1.15 1.15 Vref + VOE -6 6 ±170 -20 °C .. 85 °C Internal reference ±190 -40 °C .. 105 °C Internal reference Temperature coefficient of Vref TCVref ppm/K Temperature coefficient of VOE TCVOE mV/K Theoretical sensitivity Gth mV/A Sensitivity error εG % ±0.85 TCG ppm/K ±250 Linearity error 0 .. IPN εL % of IPN ±0.5 @ UC = 3.3 V Linearity error 0 .. IPM εL % of IPM ±0.8 @ UC = 3.3 V %/% ±0.4 Gain error per UC drift VOM mV ±4 Reaction time @ 10 % of IPN tra µs 2 di/dt = IPN/µs Response time @ 90 % of IPN tr µs 3.5 di/dt = IPN/µs Frequency bandwidth (-3 dB) BW kHz Output rms voltage noise (spectral density) (DC .. 100 MHz) eno µV/√Hz Output voltage noise (DC .. 20 MHz) Vno mVpp Temperature coefficient of G Gain error with respect to UC ±10 % Magnetic offset voltage @ IP = 0 after 2.5 × IPN Over-current detect V ±0.075 -40 °C .. 105 °C 460 mV/ IPN @ UC = 3.3 V 18.4 Factory adjustement 250 6.13 20 2.6 × IPN 2.9 × IPN 3.2 × IPN peak value Accuracy @ IPN X % of IPN ±1.35 εG + εL Accuracy @ IPN @ TA = +85 °C X % of IPN ±3.83 See formula note 1) Accuracy @ IPN @ TA = +105 °C X % of IPN ±4.66 See formula note 1) Note: 1) Accuracy @ IP and XTA = ± [X + (TCG/10000) · (TA - 25) + TCVOE · 100 · (TA -25) / (Gth · IP)]. Page 6/12 23October2014/Version 2 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice www.lem.com  HO-P/SP33 series Definition of typical, minimum and maximum values Minimum and maximum values for specified limiting and safety conditions have to be understood as such as well as values shown in “typical” graphs. On the other hand, measured values are part of a statistical distribution that can be specified by an interval with upper and lower limits and a probability for measured values to lie within this interval. Unless otherwise stated (e.g. “100 % tested”), the LEM definition for such intervals designated with “min” and “max” is that the probability for values of samples to lie in this interval is 99.73 %. For a normal (Gaussian) distribution, this corresponds to an interval between -3 sigma and +3 sigma. If “typical” values are not obviously mean or average values, those values are defined to delimit intervals with a probability of 68.27 %, corresponding to an interval between -sigma and +sigma for a normal distribution. Typical, maximal and minimal values are determined during the initial characterization of a product. Page 7/12 23October2014/Version 2 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice www.lem.com  HO-P/SP33 series Maximum continuous DC primary current 62.5 40 50 30 37.5 IP (A) IP (A) 50 20 10 12.5 15A 6 HO 0 0 25 25 50 75 TA(℃) 100 15A 10 HO 0 125 0 25 50 75 TA(℃) 100 125 100 IP (A) 75 50 25 HO 25 0 0 25 50 75 TA(℃) 100 125 Figure 1: IP vs TA for HO series Important notice: whatever the usage and/or application, the primary conductor temperature shall not go above the maximum rating of 125 °C as stated in page 2 of this datasheet. Page 8/12 23October2014/Version 2 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice www.lem.com  HO-P/SP33 series Measuring range with external reference voltage 50 40 30 Upper limit: IP = -10 × Vref +45 (Vref = 0.5 .. 2.65 V) Lower limit: IP = -10 × Vref +5 (Vref = 0.5 .. 2.65 V) Upper limit: IP = -12.5 × Vref +56.25 (Vref = 0.5 .. 2.65 V) Lower limit: IP = -12.5 × Vref +6.25 (Vref = 0.5 .. 2.65 V) Upper limit: TA = 105 °C IP = 75 (Vref = 0.5 ..2.1 V) IP = 31.25 × Vref +140.63 (Vref = 2.1 .. 2.65 V) TA = 85 °C IP = 80 (Vref = 0.5 ..1.94 V) IP = 31.25 × Vref +140.63 (Vref = 1.94 .. 2.65 V) TA = 60 °C IP = 90 (Vref = 0.5 ..1.62 V) IP = 31.25 × Vref +140.63 (Vref = 1.62 .. 2.65 V) TA = 25 °C IP = 95 (Vref = 0.5 ..1.46 V) IP = 31.25 × Vref +140.63 (Vref = 1.46 .. 2.65 V) Lower limit: IP = -31.25 × Vref +15.63 (Vref = 0.5 .. 2.65 V) IP (A) 20 10 0 -10 -20 HO 6 -30 IP (A) 0.5 60 50 40 30 20 10 0 -10 -20 -30 -40 1 1.5 2 Vref (V) 2.5 HO 10 0.5 1 1.5 2 Vref (V) 2.5 120 90 Ip (A) 60 25℃ 60℃ 85℃ 105℃ 30 0 -30 -60 -90 HO 25 0.5 1 1.5 2 Vref (V) 2.5 Example with Vref = 0.5 V: ●● The 6 A version has a measuring range from 0 A to 40 A ●● The 10 A version has a measuring range from 0 A to 50 A ●● The 25 A version has a measuring range from 0 A to 75 A at TA = 105 °C Example with Vref = 1.5 V: ●● The 6 A version has a measuring range from -10 A to 30 A ●● The 10 A version has a measuring range from -18.7 A to + 56.3 A ●● The 25 A version has a measuring range from -31.2 A to + 80 A at TA = 85 °C 23October2014/Version 2 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice Page 9/12 www.lem.com  HO-P/SP33 series PCB Footprint Assembly on PCB • Recommended PCB hole diameter • Maximum PCB thickness • Wave soldering profile No clean process only 1.5 mm for retention pin 0.9 mm for secondary pin 2.4 mm maximum 260 °C, 10 s Safety This transducer must be used in limited-energy secondary circuits according to IEC 61010-1. This transducer must be used in electric/electronic equipment with respect to applicable standards and safety requirements in accordance with the manufacturer’s operating instructions. Caution, risk of electrical shock. When operating the transducer, certain parts of the module can carry hazardous voltage (e.g. primary bus bar, power supply). Ignoring this warning can lead to injury and/or cause serious damage. This transducer is a build-in device, whose conducting parts must be inaccessible after installation. A protective housing or additional shield could be used. Main supply must be able to be disconnected. Page 10/12 23October2014/Version 2 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice www.lem.com  HO-P/SP33 series Performance parameters definition Ampere-turns and amperes IP (DC) The transducer is sensitive to the primary current linkage ΘP (also called ampere-turns). IP1 ΘP = NP·IP (At) Where NP is the number of primary turn (depending on the connection of the primary jumpers) 0A Caution: As most applications will use the transducer with only one single primary turn (NP = 1), much of this datasheet is written in terms of primary current instead of current linkages. However, the ampere-turns (At) unit is used to emphasis that current linkages are intended and applicable. -IP1 t1 t t2 Ip(t 3) Ip(3) Figure 2: C  urrent cycle used to measure magnetic and electrical offset (transducer supplied) Transducer simplified model Electrical offset The static model of the transducer at temperature TA is: Vout = G·ΘP + overall error (mV) In which error = εG ·ΘP·G + εL··ΘP·G + TCG·(TA-25)·ΘP·G + VOE + TCVOE·(TA-25) (mV) The electrical offset VOE can either be measured when the ferro-magnetic parts of the transducer are: With: ΘP = NP·IP : p  rimary current linkage (At) ΘP max :m  ax primary current linkage applied to the Vout TA VOE TCVOE G TCG εG εL transducer (A/t) : output voltage (V) : ambient operating temperature (°C) : electrical offset voltage (V) : temperature coefficient of VOE (mV/K) : sensitivity of the transducer (V/At) : temperature coefficient of G (%/K) : sensitivity error (%) : linearity error for ΘP (%) This model is valid for primary ampere-turns ΘP between -ΘP max and +ΘP max only. Sensitivity and linearity To measure sensitivity and linearity, the primary current (DC) is cycled from 0 to IP, then to - IP and back to 0 (equally spaced IP/10 steps). The sensitivity G is defined as the slope of the linear regression line for a cycle between ± IPN. The linearity error εL is the maximum positive or negative difference between the measured points and the linear regression line, expressed in % of IPN. Magnetic offset The magnetic offset voltage VOM is the consequence of a current on the primary side (“memory effect” of the transducer’s ferromagnetic parts). It is measured using the following primary current cycle. VOM depends on the current value IP1 (IP1>IPM). V = OM V (t ) − V (t ) 2 out 1 out 2 ●● completely demagnetized, which is difficult to realize, ●● or in a known magnetization state, like in the current cycle shown in figure 2. V = OE V (t ) + V (t ) 2 1 out out 2 Using the current cycle ... (shown T ) = ... (Tin) −figure ... (25 °18, C) the electrical offset is: Note: the transducer has to be demagnetized prior to the application of the current cycle (for example with a demagnetization tunnel). OE OT OE Overall accuracy The overall accuracy at 25 °C XG is the error in the - IPN .. + IPN range, relative to the rated value IPN. It includes: ●● the electrical offset VOE ●● the sensitivity error εG ●● the linearity error εL (to IPN) (%) Response and reaction times The response time tr and the reaction time tra are shown in figure 18. Both depend on the primary current di/dt. They are measured at nominal ampere-turns. I 100 % 90 % Vout Ip tr 10 % tra t Figure 3: Response time tr and reaction time tra Page 11/12 23October2014/Version 2 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice www.lem.com  HO-P/SP33 series Dimensions HO 6-P/SP33, HO 10-P/SP33, HO 25-P/SP33 (in mm) Operation principle OUT 1 2 47nF 5Ω 3 4.7nF 200Ω 4 47nF >10kΩ 5 Ip +Uc 0V Vout Vref (IN/OUT) OCD IN +Uc 0V Vout Vref (IN/OUT) OCD dCI dCp Remarks ·There are 6 retention pins which have to be used only for retention as well as into the section called “Assembly on PCB”. ·The pimary conductor to be measured should go through the aperture 8 × 8 mm. Page 12/12 23October2014/Version 2 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice www.lem.com