ACS758xCB - Mantech Electronics

1 Application 1. The ACS758 outputs an analog signal, VOUT , that varies linearly with the uni- or bi-directional AC or DC primary sampled current , IP , within the range specified. CF is for optimal noise management, with values that depend on the Allegro ACS758 family of current sensor ICs provides economical and precise solutions for AC or DC current sensing. Typical applications include motor control, load detection and management, power supply and DC-to-DC converter control, inverter control, and overcurrent fault device consists of a precision, low-offset linear hall circuit with a copper conduction path located near the die. Applied current flowing through this copper conduction path generates a magnetic field which the hall IC converts into a proportional voltage. Device accuracy is optimized through the close proximity of the magnetic signal to the hall transducer. A precise, proportional output voltage is provided by the low-offset, chopper-stabilized BiCMOS hall IC, which is programmed for accuracy at the level immunity to current conductor dV/dt and stray electric fields, offered by Allegro proprietary integrated shield technology, guarantees low output voltage ripple and low offset drift in high-side, high voltage output of the device has a positive slope (>VCC / 2) when an increasing current flows through the primary copper conduction path (from terminal 4 to terminal 5), which is the path used for current sampling.

2 The internal resistance of this conductive path is 100 typical, providing low power loss. The thickness of the copper conductor allows survival of the device at high overcurrent conditions. The terminals of the ACS758-DS, Rev. 2 Thermally Enhanced, Fully Integrated, hall effect -Based linear current sensor IC with 100 current ConductorContinued on the next on the next Application+ or 5 FIP+IP 2 GND45 ACS75831 VIOUTVCCIPF eatures and Benefits Industry-leading noise performance through proprietary amplifier and filter design techniques Integrated shield greatly reduces capacitive coupling from current conductor to die due to high dV/dt signals, and prevents offset drift in high-side, high voltage applications Total output error improvement through gain and offset trim over temperature Small package size, with easy mounting capability Monolithic hall IC for high reliability Ultra-low power loss: 100 internal conductor resistance Galvanic isolation allows use in economical, high-side current sensing in high voltage systems to V, single supply operationPSSL eadformPFFL eadformPackage.

3 5-pin packageAdditional leadforms available for qualifying volumesT V AmericaCertificate Number:U8V 09 05 54214 021 Thermally Enhanced, Fully Integrated, hall effect -Based linear current sensor IC with 100 current ConductorACS758xCB2 Allegro MicroSystems, Northeast CutoffWorcester, Massachusetts 01615-0036 ; GuidePart Number1 PackagePrimary Sampled current , IP(A)SensitivitySens (Typ.)(mV/A)TOP ( C)Packing2 TerminalsSignal PinsACS758 LCB-050B-PFF-TFormedFormed 5040 40 to 150170 per bulk bagACS758 LCB-100B-PFF-TFormedFormed 10020 ACS758 KCB-150B-PFF-TFormedFormed 40 to 125 ACS758 KCB-150B-PSS-TStraightStraightACS758 ECB-200B-PFF-TFormedFormed 20010 40 to 85 ACS758 ECB-200B-PSS-TStraightStraight1 Additional leadform options available for qualified volumes2 Contact Allegro for additional packing path are electrically isolated from the signal leads (pins 1 through 3). This allows the ACS758 family of sensor ICs to be used in applications requiring electrical isolation without the use of opto-isolators or other costly isolation device is fully calibrated prior to shipment from the factory.

4 The ACS758 family is lead (Pb) free. All leads are plated with 100% matte tin, and there is no Pb inside the package. The heavy gauge leadframe is made of oxygen-free (continued)Features and Benefits (continued) 120 kHz typical bandwidth 3 s output rise time in response to step input current Output voltage proportional to AC or DC currents Factory-trimmed for accuracy Extremely stable output offset voltage Nearly zero magnetic hysteresisAbsolute Maximum RatingsCharacteristicSymbolNotesRatingUn itsForward Supply Voltage VCC8 VReverse Supply VoltageVRCC Voltage for Reinforced IsolationVWORKINGV oltage applied between pins 1-3 and 4-5; tested at 3000 VAC for 1 minute according to UL standard 60950-1353 VACF orward Output VoltageVIOUT28 VReverse Output VoltageVRIOUT Source current IOUT(Source)VIOUT to GND3mAOutput Sink current IOUT(Sink)VCC to VIOUT1mANominal Operating Ambient TemperatureTOPR ange E 40 to 85 CRange K 40 to 125 CRange L 40 to 150 CMaximum JunctionTJ(max)165 CStorage TemperatureTstg 65 to 165 CTypical Overcurrent Capabilities1,2 CharacteristicSymbolNotesRatingUnitsOver currentIPOCTA = 25 C, 1s duration, 1% duty cycle1200 ATA = 85 C, 1s duration, 1% duty cycle900 ATA = 150 C, 1s duration, 1% duty cycle600A1 Test was done with Allegro evaluation board.

5 The maximum allowed current is limited by TJ(max) more overcurrent profiles, please see FAQ on the Allegro website, Enhanced, Fully Integrated, hall effect -Based linear current sensor IC with 100 current ConductorACS758xCB3 Allegro MicroSystems, Northeast CutoffWorcester, Massachusetts 01615-0036 ; +IP VIOUTGNDVCC4 5321 Terminal List TableNumberNameDescription1 VCCD evice power supply terminal2 GNDS ignal ground terminal3 VIOUTA nalog output signal4IP+Terminal for current being sampled5IP Terminal for current being sampledFunctional Block DiagramPin-out DiagramAmpOutVCC+ to 5 VVIOUTGNDF ilterDynamic Offset FIP IP+Gain TemperatureCoefficientGainTrim ControlOffset TemperatureCoefficientOffsetTo all subcircuitsThermally Enhanced, Fully Integrated, hall effect -Based linear current sensor IC with 100 current ConductorACS758xCB4 Allegro MicroSystems, Northeast CutoffWorcester, Massachusetts 01615-0036 ; OPERATING CHARACTERISTICS1 valid at TOP = 40 C to 150 C and VCC = 5 V, unless otherwise specifiedCharacteristicSymbolTest CurrentICCO utput open DelaytPODTA = 25 C 10 sRise Time2trIP step = 60% of IP+, 10% to 90% rise time, TA = 25 C, COUT = nF 3 sPropagation Delay Time2tPROPTA = 25 C, COUT = nF 1 sResponse TimetRESPONSEM easured as sum of tPROP and tr 4 sInternal Bandwidth3 BWi 3 dB.

6 TA = 25 C, COUT = nF 120 kHzOutput Load ResistanceRLOAD(MIN)VIOUT to k Output Load CapacitanceCLOAD(MAX)VIOUT to GND 10nFPrimary Conductor ResistanceRPRIMARYTA = 25 C 100 Symmetry2 ESYMOver half-scale of Ip99100101%Quiescent Output Voltage4 VIOUT(Q)IP = 0 A, TA = 25 C VCC/2 VRatiometry2 VRATVCC = to V 100 %1 Device is factory-trimmed at 5 V, for optimal Characteristic Definitions section of this using the formula BWi = / (Q) may drift over the lifetime of the device by as much as 25 Enhanced, Fully Integrated, hall effect -Based linear current sensor IC with 100 current ConductorACS758xCB5 Allegro MicroSystems, Northeast CutoffWorcester, Massachusetts 01615-0036 ; PERFORMANCE CHARACTERISTICS1: TOP = 40 C to 150 C, VCC = 5 V, unless otherwise specifiedCharacteristicSymbolTest Sampled CurrentIP 50 50 ASensitivitySensTAFull scale of IP applied for 5 ms, TA = 25 C 40 mV/ASens (TOP)HTFull scale of IP applied for 5 ms, TOP = 25 C to 150 C mV/ASens (TOP)LTFull scale of IP applied for 5 ms,TOP = 40 C to 25 C 41 mV/ANoise2 VNOISETA= 25 C, 10 nF on VIOUT pin to GND 10 mVNonlinearityELINUp to full scale of IP , IP applied for 5 ms 1 1%Electrical Offset Voltage3 VOE(TA)IP = 0 A, TA = 25 C 5 mVVOE(TOP)HTIP = 0 A, TOP = 25 C to 150 C 15 mVVOE(TOP)LTIP = 0 A, TOP = 40 C to 25 C 35 mVMagnetic Offset ErrorIERROMIP = 0 A, TA = 25 C, after excursion of 50 A 100 mATotal Output Error4 ETOT(HT)Over full scale of IP , IP applied for 5 ms, TOP = 25 C to 150 C %ETOT(LT)

7 Over full scale of IP , IP applied for 5 ms, TOP = 40 C to 25 C 2 %1 See Characteristic Performance Data page for parameter distributions over temperature 3 sigma noise OE(TOP) drift is referred to ideal VIOUT(Q) = of IP. Output PERFORMANCE CHARACTERISTICS1: TOP = 40 C to 150 C, VCC = 5 V, unless otherwise specifiedCharacteristicSymbolTest Sampled CurrentIP 100 100 ASensitivitySensTAFull scale of IP applied for 5 ms, TA = 25 C 20 mV/ASens (TOP)HTFull scale of IP applied for 5 ms, TOP = 25 C to 150 C mV/ASens (TOP)LTFull scale of IP applied for 5 ms, TOP = 40 C to 25 C mV/ANoise2 VNOISETA= 25 C, 10 nF on VIOUT pin to GND 6 mVNonlinearityELINUp to full scale of IP , IP applied for 5 ms Offset Voltage3 VOE(TA)IP = 0 A, TA = 25 C 5 mVVOE(TOP)HTIP = 0 A, TOP = 25 C to 150 C 20 mVVOE(TOP)LTIP = 0 A, TOP = 40 C to 25 C 20 mVMagnetic Offset ErrorIERROMIP = 0 A, TA = 25 C, after excursion of 100 A 150 mATotal Output Error4 ETOT(HT)Over full scale of IP , IP applied for 5 ms, TOP = 25 C to 150 C %ETOT(LT)

8 Over full scale of IP , IP applied for 5 ms, TOP = 40 C to 25 C %1 See Characteristic Performance Data page for parameter distributions over temperature 3 sigma noise voltage. 3V OE(TOP) drift is referred to ideal VIOUT(Q) = V. 4 Percentage of IP. Output Enhanced, Fully Integrated, hall effect -Based linear current sensor IC with 100 current ConductorACS758xCB6 Allegro MicroSystems, Northeast CutoffWorcester, Massachusetts 01615-0036 ; PERFORMANCE CHARACTERISTICS1: TOP = 40 C to 125 C, VCC = 5 V, unless otherwise specifiedCharacteristicSymbolTest Sampled CurrentIP 150 150 ASensitivitySensTAFull scale of IP applied for 5 ms, TA = 25 C mV/ASens (TOP)HTFull scale of IP applied for 5 ms, TOP = 25 C to 125 C mV/ASens (TOP)LTFull scale of IP applied for 5 ms, TOP = 40 C to 25 C mV/ANoise2 VNOISETA= 25 C, 10 nF on VIOUT pin to GND 4 mVNonlinearityELINUp to full scale of IP , IP applied for 5 ms 1 1%Electrical Offset Voltage3 VOE(TA)IP = 0 A, TA = 25 C 5 mVVOE(TOP)HTIP = 0 A, TOP = 25 C to 125 C 14 mVVOE(TOP)LTIP = 0 A, TOP = 40 C to 25 C 24 mVMagnetic Offset ErrorIERROMIP = 0 A, TA = 25 C, after excursion of 150 A 205 mATotal Output Error4 ETOT(HT)Over full scale of IP , IP applied for 5 ms, TOP = 25 C to 125 C %ETOT(LT)

9 Over full scale of IP , IP applied for 5 ms, TOP = 40 C to 25 C %1 See Characteristic Performance Data page for parameter distributions over temperature 3 sigma noise OE(TOP) drift is referred to ideal VIOUT(Q) = of IP. Output PERFORMANCE CHARACTERISTICS1: TOP = 40 C to 85 C, VCC = 5 V, unless otherwise specifiedCharacteristicSymbolTest Sampled CurrentIP 200 200 ASensitivitySensTAFull scale of IP applied for 5 ms, TA = 25 C 10 mV/ASens (TOP)HTFull scale of IP applied for 5 ms, TOP = 25 C to 85 C mV/ASens (TOP)LTFull scale of IP applied for 5 ms, TOP = 40 C to 25 C mV/ANoise2 VNOISETA= 25 C, 10 nF on VIOUT pin to GND 3 mVNonlinearityELINUp to full scale of IP , IP applied for 5 ms 1 1%Electrical Offset Voltage3 VOE(TA)IP = 0 A, TA = 25 C 5 mVVOE(TOP)HTIP = 0 A, TOP = 25 C to 85 C 15 mVVOE(TOP)LTIP = 0 A, TOP = 40 C to 25 C 25 mVMagnetic Offset ErrorIERROMIP = 0 A, TA = 25 C, after excursion of 200 A 230 mATotal Output Error4 ETOT(HT)Over full scale of IP , IP applied for 5 ms, TOP = 25 C to 85 C %ETOT(LT)

10 Over full scale of IP , IP applied for 5 ms, TOP = 40 C to 25 C %1 See Characteristic Performance Data page for parameter distributions over temperature 3 sigma noise voltage. 3V OE(TOP) drift is referred to ideal VIOUT(Q) = V . 4 Percentage of IP. Output Enhanced, Fully Integrated, hall effect -Based linear current sensor IC with 100 current ConductorACS758xCB7 Allegro MicroSystems, Northeast CutoffWorcester, Massachusetts 01615-0036 ; Performance DataData taken using the ACS758 LCB-50 BAccuracy DataMeanTypical Maximum LimitTypical Minimum Limit3020100-10-20-30-40-50 50100125150500-252575 50100125150500-252575 50100125150500-252575 50100125150500-252575 50100125150500-252575 (mV)ELIN (%)Sens (mV/A)ESYM (%)ETOT (%)TA ( C)TA ( C)TA ( C)TA ( C)TA ( C) 140120100806040200 IERROM (mA)TA ( C) Electrical Offset Voltage versus Ambient TemperatureNonlinearity versus Ambient Temperature Sensitivity versus Ambient TemperatureTotal Output Error versus Ambient TemperatureMagnetic Offset Error versus Ambient TemperatureSymmetry versus Ambient Temperature Thermally Enhanced, Fully Integrated, hall effect -Based linear current sensor IC with 100 current ConductorACS758xCB8 Allegro MicroSystems, Northeast CutoffWorcester, Massachusetts 01615-0036.