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product name current sensor part no. gcbc100 - 2 b attention: modifications on specification, size, etc., may be carried out for improvement without notice. rev1. 5 e e c 2 8 march . 201 7 page : 1 / 16 alps electric co., ltd. current sensor for p w board mounting gcbc100 - 2 b data sheet r ev.1. 5 e ec 201 7 .0 3 . 28 alps electric co., ltd.
product name current sensor part no. gcbc100 - 2 b attention: modifications on specification, size, etc., may be carried out for improvement without notice. rev1. 5 e e c 2 8 march . 201 7 page : 2 / 16 alps electric co., ltd. table of contents 1. intro duction ................................ ................................ ................................ ................................ ... 3 2. features and advantages ................................ ................................ ................................ ............ 3 3. principle ................................ ................................ ................................ ................................ ......... 3 4. applica tions ................................ ................................ ................................ ................................ ... 3 5. block diagram and typical application ................................ ................................ ...................... 4 5.1. block diagram ................................ ................................ ................................ .......................... 4 5.2. typical application ................................ ................................ ................................ ................... 4 6. dimensions and terminal designation ................................ ................................ ....................... 7 7. operating characteristics ................................ ................................ ................................ ............ 8 7.1. absolute maximum ratings ................................ ................................ ................................ ..... 8 7.2. operating condition ................................ ................................ ................................ ................. 8 7.3. recommended operating condition ................................ ................................ ........................ 8 7.4. electrical characteristics (no load, vdd=5.0v, ta=25 c ) ................................ ...................... 8 7.5. electrical characteristics (rl=10k , vdd=5.0v, ta=25 c ) ................................ ..................... 9 7.6. start - up timing ................................ ................................ ................................ ........................ 10 7.6.1. start - up ................................ ................................ ................................ ........................... 10 7.6.2. low voltage detection ................................ ................................ ................................ ..... 10 7.7. influence from the ambient magnetic field ................................ ................................ ............. 11 8. characteristic definitions ................................ ................................ ................................ ........... 12 9. characteristic data ................................ ................................ ................................ ...................... 14 10. recommended soldering conditions ................................ ................................ ................... 15 10.1. ma nual soldering ................................ ................................ ................................ ............... 15 10.2. flow soldering ................................ ................................ ................................ .................... 15 11. referential land pattern ................................ ................................ ................................ ......... 15 12. extras ................................ ................................ ................................ ................................ ........ 16
product name current sensor part no. gcbc100 - 2 b attention: modifications on specification, size, etc., may be carried out for improvement without notice. rev1. 5 e e c 2 8 march . 201 7 page : 3 / 16 alps electric co., ltd. 1. introduction current sensor gcbc series is for use on the electronic measurement of dc, ac, or pulsed currents with no contact. 2. features and advantages ? coreless, small and lightweight(3g) design w ith high sensitivity magneto - resistive (mr) elements . ? low primary - conductor resistance: 60 ? . ? good linearity: 0.5%f.s. ? +5v single power supply . ? operating temperature: - 40 c ~ +105 c . ? dc and ac current measurement with quick response . 3. principle current sensor detects the magnetic induction generated by the primary current to be measured. in the module, mr element with c onditioning ic is located on the bus bar (path of the primary current). the magnetic field control board is arranged around bus bar and mr elem ent so that module output with high sensitivity can be made. on the other hand, the output error by outer magnetic field, which has no relationship to the magnetic induction of primary current, is decreased. fig. 3 - 1 principle of measurement fig. 3 - 2 the magnetic induction generated by the primary current (simulation) 4. applications motor drivers and general - purpose invert ers, pv inverter systems, server power supplies, packaged air - conditioning units, nc machine tools and other industrial and etc...
product name current sensor part no. gcbc100 - 2 b attention: modifications on specification, size, etc., may be carried out for improvement without notice. rev1. 5 e e c 2 8 march . 201 7 page : 4 / 16 alps electric co., ltd. 5. block diagram and typical application 5.1. block diagram fig. 5 - 1 block diagram of the module 5.2. typical application r efer to chapter 7.3 for the recommended operating condition of the load. (1) basic connection fig. 5 - 2 basic connection * current sensor has a lpf with c oefficients described in above figure. * refer electrical characteristics to c hapter 7.4 , if rl can be regarded as no - load.
product name current sensor part no. gcbc100 - 2 b attention: modifications on specification, size, etc., may be carried out for improvement without notice. rev1. 5 e e c 2 8 march . 201 7 page : 5 / 16 alps electric co., ltd. (2) 3.3v input for a/d fig. 5 - 3 3.3v input for a/d * use step down resistance to divide output voltage of the current sensor, i f input voltage of a/ d is 3.3v . (3) external filter circuit fig. 5 - 4 external filter circuit * m ount a lpf, i f necessary . * note that two - stage lpf conf iguration due to connect an externally lpf, since a cu rrent sensor has a built - in lpf . (4) e xternal filter circuit ( in multiple ) fig. 5 - 5 external filter circuit ( in multiple ) * mount an op - amp buffer, if necessary.
product name current sensor part no. gcbc100 - 2 b attention: modifications on specification, size, etc., may be carried out for improvement without notice. rev1. 5 e e c 2 8 march . 201 7 page : 6 / 16 alps electric co., ltd. (5) output treatment for the unknown state start u p t ime is ne cessary for this product. during that time, output signal becomes hi - z. if you want to fix the output voltage during that timing , p lease see below as your reference . ? pull - up fig. 5 - 6 pull - up * fix the potential to 5v in the period of the hi - z, i f it is necessary to keep +5v during start - up or low volta ge detection as a n output signal . * r efer to c hapter 7.6 regarding st art - up timing. * note that o utput load rl of the current sensor is not less than 10k. voltage vout of the output is the resistance divider ratio o f the 100 of built - in filter, i f connect a pull - up resistor. therefore, t he use of precision resistors, such a s 1% so that the error variation of the resistance partial pressure is not increased. ? pull - down fig. 5 - 7 pull - down * fix the potential to 0 v in the period of the hi - z, i f it is necessary to keep 0v during start - up or low volta ge detection as a n output signal . * r efer to c hapter 7.6 regarding start - up timing. * note that o utput load rl of the current sensor is not less than 10k. voltage vout of the output is the resistanc e divider ratio o f the 100 of built - in filter, i f connect a pull - up resistor. therefore, t he use of precision resistors, such as 1% so that the error variation of the resistance partial pressure is not increased. * refer electrical characteristics to c hapte r 7.5 , if rl can be regarded as 10k .
product name current sensor part no. gcbc100 - 2 b attention: modifications on specification, size, etc., may be carried out for improvement without notice. rev1. 5 e e c 2 8 march . 201 7 page : 7 / 16 alps electric co., ltd. 6. dimensions and terminal designation attention: sensor size may be changed. fig. 6 - 1 dimensions table 6 - 1 terminal list table no. name description 1 vout signal output 2 gnd ground 3 vdd +5v power supply 4 n primary current terminal ( - ) 5 p primary current terminal (+) fig. 6 - 2 pin assignment 5 4 3 2 1 unit [mm] current flow direction
product name current sensor part no. gcbc100 - 2 b attention: modifications on specification, size, etc., may be carried out for improvement without notice. rev1. 5 e e c 2 8 march . 201 7 page : 8 / 16 alps electric co., ltd. 7. operating characteristics 7.1. absolute maximum ratings no parameter symbol min typ max unit note 1 supply voltage vdd - 0.3 5.5 v vdd pin 2 output current (vout pin ) iout - 1.1 1.1 ma vout pin, continuously iout - 40 40 ma vout pin, pulse width 1 s , period 1khz 3 st o rage temperature ts - 40 105 c 4 storage ambient magnetic field bs - 8 8 mt 5 maximum current ( over current ) ipoc - 110 110 a 6 maximum continuous current irmcnt - 50 50 a 7.2. operating conditio n no parameter symbol min typ max unit note 1 supply voltage vdd 4.85 5.00 5.15 v 3%(5.0v 0.15v) 2 primary current measuring range ir - 100 100 a dc 100a 3 operating temperature ta - 40 105 c 7.3. recommended operating condition no parameter symbol min typ max unit note 1 output current iout - 0.5 0.5 ma vout pin 2 load capacity cl 100 pf vout pin 7.4. electrical characteristics ( no load, vdd=5.0v, ta=25 c ) no parameter symbol min typ max unit note 1 offset voltage ( * 1) vof 2.500 v vdd 1/2 2 offset thermal drift tcvof 0.3 mv/ c - 40 ~ +105 c 3 sensitivity ( * 2) vo 20.0 mv/a 4 sensitivity temperature drift tcvo 0.02 %/ c - 40 ~ +105 c 5 linearity e l 0.2 %fs fs=full scale 6 response time tr 1 s input current : di/dt=100a/ s, 80% response 7 current consumption iddmax 18 ma 8 isolation voltage vins 1500 v ac 50/60hz,60s sensor unit 9 insulation resistance rins 500 m dc500v signal terminal batch with bus bar 10 hysteresis error of vof ( * 3) voh 3 mv primary current measuring range 11 primary conductor resistance ( * 3) r 1 60 ?
product name current sensor part no. gcbc100 - 2 b attention: modifications on specification, size, etc., may be carried out for improvement without notice. rev1. 5 e e c 2 8 march . 201 7 page : 9 / 16 alps electric co., ltd. 7.5. electrical characteristics ( rl=10k , vdd=5.0v, ta=25 c ) no parameter symbol min typ max unit note 1 offset voltage ( * 1, * 3) vof 2.475 v vdd=+5.00v 3 sensitivity ( * 2, * 3) vo 19.8 mv/a note: only ch aracteristics no.1 and 3 are different from no - load. * 1 offset voltage will change in ratiometric to supply voltage. * 2 sensitivity does not change in the ratiometric to the supply voltage. * 3 reference only. fig. 7 - 1 current vs. output voltage vdd 1/2vdd + 10 0a - 10 0 a 4000mv (typ.) primary current output voltage 0
product name current sensor part no. gcbc100 - 2 b attention: modifications on specification, size, etc., may be carried out for improvement without notice. rev1. 5 e e c 2 8 march . 201 7 page : 10 / 16 alps electric co., ltd. 7.6. start - up timing 7.6.1. s tart - up this current sensor has a c onditioning ic . c onditioning ic will start the start up sequence under operation voltage after power supply is turned on. the transition to the normal state through the start - up time , vout output will output a valid voltage . 7.6.2. l ow voltage detection if the supply voltage drops to the operation voltage by instantaneous power failure, output signal will be stopped and become a hi - z by low voltage detention. to returns from the instantaneous power failure state, c onditioning ic will restart the operation with operation voltage. transition to the normal state through the start - up time , vout output will output a valid voltage . during t ransition time to the norm al operation, vout signal has some variation (flapping) as a n output signal , since closed loop of magnetic equilibrium expression is controlled by feedback to be equilibrium. start up timing no parameter symbol min typ max unit note 1 operation start vol tage vopu 4.05 4.4 4.75 v 2 operation stop voltage vopl 3 3.5 4.5 v 3 start - up time tstup 1 30 ms fig. 7 - 2 start up timing
product name current sensor part no. gcbc100 - 2 b attention: modifications on specification, size, etc., may be carried out for improvement without notice. rev1. 5 e e c 2 8 march . 201 7 page : 11 / 16 alps electric co., ltd. 7.7. influence from the ambient magnetic field this current sensor uses a magnetic sensor for a current detecting . it is influenc ed by ambient magnetic field . reference information to minimize the influence from the a mbient magnetic are described below. ? the transformer and the inductor generate the leakage flux , i t is affected by the accuracy of the current sensor by the leakage flux. it especially most affected to the magnetic flux of the x - axis direction. please de cide component location after your evaluation. ? if the current path running parallel in close to the current sensor, t he accuracy of the current sensor is affected by magnetic flux from the another current path. it especially most affect ed to the magnetic flux of the y - axis direction. please decide pcb pattern design after your evaluation. fig. 7 - 3 direction of the magnetic flux z - axis x - axis y - axis
product name current sensor part no. gcbc100 - 2 b attention: modifications on specification, size, etc., may be carried out for improvement without notice. rev1. 5 e e c 2 8 march . 201 7 page : 12 / 16 alps electric co., ltd. 8. characteristic definitions the contents of the main characteristics are sho wn below. standard conditions and the standard state in each item are defined below. ? standard condition : ambient temperature 25 c ? the state of the standard : supply voltage ( dc+ 5 .00 v) with no load. (1) offset voltage t he output voltage when the primary curren t is 0a. (2) offset thermal drift ch ange of the offset voltage within the range of the operating temperature. the value is the amount of the change per 1 degree calculated with the output at 25 degrees as the reference. (3) sensitivity the s lope of the estimated output. the least squares method from the output voltages for the primary current within rating is used. (4) sensitivity temperature drift change of the gain within the operating temperature range. the value is the ratio of the change per 1 degree calculated with the gain at 25 degrees as the reference. (5) linearity the error of the output voltage between measured and estimated. the least squares method from the output voltages at rated primary current, its half current, 0a(offset voltage), is used. the value is calculated using equation ; non linearity = { ( measured vout - estimated vout ) / ( output voltage at positive maximum current of measurement current range - output voltage at negative maximum current of measurement current range ) } 100 ( %fs ) fig. 8 - 1 non li nearity vout +10 0a - 100 a primary current 0 vout C estimated vout
product name current sensor part no. gcbc100 - 2 b attention: modifications on specification, size, etc., may be carried out for improvement without notice. rev1. 5 e e c 2 8 march . 201 7 page : 13 / 16 alps electric co., ltd. (6) response time fig. 8 - 2 shows the response time of output (dt) when primary current is square wave which have 100a/us rise/fall time. response time is defined as the time between 80% change point of input wave and output. fig. 8 - 2 response time (7) current consumption the bus bar rating pass an electric current this cur rent consumption measure . (8) isolation voltage 1500v in the ac voltage, 50hz, and 60sec are impressed to the bus bar with the control terminal batch under . (9) insulation resistance it measures between the control terminal batch and the bus bar with meg ohm met er (dc500v) under the standard condition . (10) hysteresis absolute value of the difference of the output when the primary current is 0a between after rated positive primary current is added and negative one is added. 80% 80% dt
product name current sensor part no. gcbc100 - 2 b attention: modifications on specification, size, etc., may be carried out for improvement without notice. rev1. 5 e e c 2 8 march . 201 7 page : 14 / 16 alps electric co., ltd. 9. characteristic data example of typical c haracteristics . fig. 9 - 1 output voltage fig. 9 - 2 l inearity fig. 9 - 3 consumption current fig. 9 - 4 response time fig. 9 - 5 offset voltage vs. temp e rature fig. 9 - 6 gain vs. temp e rature 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 -120 -100 -80 -60 -40 -20 0 20 40 60 80 100 120 primary current (a) output voltage (v) -1.0 -0.8 -0.6 -0.4 -0.2 0.0 0.2 0.4 0.6 0.8 1.0 -120 -100 -80 -60 -40 -20 0 20 40 60 80 100 120 primary current (a) linearity (%fs) 0 2 4 6 8 10 12 14 16 18 20 -120 -100 -80 -60 -40 -20 0 20 40 60 80 100 120 primary current (a) consumption current (ma) 1 2 3 4 5 6 7 8 9 10 -5 0 5 10 15 20 25 time (usec) output voltage (v) -200 -150 -100 -50 0 50 100 150 200 250 current probe (a) output voltage current probe 80%response 0.5sec 2.30 2.35 2.40 2.45 2.50 2.55 2.60 2.65 2.70 -50 -25 0 25 50 75 100 125 temperature (deg.c) offset voltage(v) offset drift: -0.02/+0.28mv/deg.c 18.0 18.5 19.0 19.5 20.0 20.5 21.0 21.5 22.0 -50 -25 0 25 50 75 100 125 temperature (deg.c) gain (mv/a) gain drift: +0.02/+0.01%/deg.c
product name current sensor part no. gcbc100 - 2 b attention: modifications on specification, size, etc., may be carried out for improvement without notice. rev1. 5 e e c 2 8 march . 201 7 page : 15 / 16 alps electric co., ltd. 10. recommended soldering conditions 10.1. manual s oldering te mperature 350 5 c time 3 sec . max. number of time s 2 time s max. note: the rise in heat of current sensor is influenced by the solder trowel and the mounting substrate. please control so that the temperature of the primary current terminal does not excee d 260 c , when the above - mentioned condition s are impossible. 10.2. flow soldering preheating substrate surface temperature 120 c preheat time 60 sec . soldering soldering tank temperature 260 5 c soldering portion temperature 220 c min. 3sec . min . soldering time 10sec . max. 11. referential land pattern re ferential land pattern is shown here. fig. 11 - 1 referential land pattern unit: mm
product name current sensor part no. gcbc100 - 2 b attention: modifications on specification, size, etc., may be carried out for improvement without notice. rev1. 5 e e c 2 8 march . 201 7 page : 16 / 16 alps electric co., ltd. 12. extras ? all information described in this document is intended only as guidan ce to explain operation and how to use this product, and we do not warrant that this information is not infringe any intellectual property rights of us and any third party and other rights. ? in case of using all information described in this document, you a gree that you are solely judgment and responsible for it. therefore, you must be in any way responsible or liable for any damages, expenses or losses incurred by you or third parties arising from the use of this information. ? absolute maximum rating is the value that should not be exceeded. when used beyond the conditions in one item, breakage or shift of the characteristics without lead to damage, may affect the reliability and life. in addition, normal operation is not guaranteed. ? electrical characteristic s may not be guaranteed, if use more than the operating conditions or the recommended operating conditions. ? the characteristics on this datasheet are the example with no load and 10kohm pull - down. please note that output voltage varies depending on the loa d resistance. ? the primary current must be below rating. the residual output may cause when the current over rating is added. ? do not expose the product to strong magnetic field. the residual output may cause . ? do not use the product if it is fallen. the resi dual output may cause . ? damage may occur by unusual heat when large or constant primary current is added. the amount of heat depends on the current and heat radiation. ? the control wire should be set as short as possible to avoid the outside noise. ? before de termine p lacement and wiring of any parts , please be fully evaluated. magnetic flux leaking from the adjacent magnetic parts and magnetic flux generated from the pattern of the p wb which a large current flows, adversely affect the electrical characteristic s. ? for the export of products which are controlled items subject to foreign and domestic export laws and regulations, you must obtain approval and/or follow the formalities of such laws and regulations. ? products must not be used for military and/or antisoc ial purposes such as terrorism, and shall not be supplied to any party intending to use the products for such purposes. ? unless provided for otherwise, the products have been designed and manufactured for application in equipment and devices which are sold to end users in the market, including audio - visual (av) equipment, electrical home appliances, office machines, information and communication equipment, and amusement equipment. the products are not intended for use in, and must not be used for, any applic ation for nuclear equipment, driving equipment for aerospace or any other unauthorized use. ? with the exception of the abovementioned prohibited applications, please contact an alps sales representative and/or evaluate the total system regarding applicabili ty for applications involving high levels of safety and liability such as medical equipment, burglar alarm equipment, disaster prevention equipment and undersea equipment. please also incorporate fail - safe design, protection and redundant circuitry, malfun ction protection, and/or fire protection into the complete system to ensure safety and reliability of the total system. ? before using products which were not specifically designed for use in automotive applications, please contact an alps sales representati ve.

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