电流传感器GT712LBDTR-05B

XBLW GT712 Hall Current Sensor Summary GT712 is a high-performance Hall effect current sensor that can more effectively measure AC (alternating current) or DC (direct current) current, and is widely used in industrial, consumer, and communication equipment. The GT712 series internally integrates a highly accurate and low-noise linear Hall circuit and a lowimpedance main current loop conductor. When the sampled current flows through the main current loop, the magnetic field it generates induces a corresponding electrical signal on the Hall circuit, which is then processed by the signal processing circuit to output a voltage signal, making the product output strictly proportional to the measured current value. The linear Hall circuit is manufactured using advanced BCDMOS process, which includes a high sensitivity Hall sensor, a preamplifier for the Hall signal, a high precision Hall temperature compensation unit, an oscillator, a dynamic offset elimination circuit, and an output module for the amplifier. In the absence of a magnetic field, the static output of the current sensor is 50% VCC. Under a power supply voltage of 5V, the sensor's static output can linearly change between 0.2~4.8V with the magnetic field, with a linearity of up to 0.4%. The dynamic offset elimination circuit integrated inside the GT712 ensures that the sensitivity of the sensor is not affected by external pressure and IC packaging stress. The GT712 is available in SOP8 package, with an operating temperature range of -40~150℃， and complies with RoHS standards. Main features  Working voltage: 4.5V～5.5V  Static common mode output point: 50% VCC  Wide measuring range: 5A/20A/30A  Isolation voltage: 2500V  High bandwidth: 120kHz  Output response time: 4μs (typical value)  Stability within operating range: 1.5% @ 25℃~150℃； 1% @ -40℃~25℃  Low-noise analog signal path  Strong anti-interference ability  Strong resistance to mechanical stress, magnetic field parametersStrong resistance to mechanical stress, magnetic field parameters are not shifted by external pressure  ESD (HBM): 5kV    Operating temperature: -40℃~150℃ RoHS certified: (EU) 2015 / 863 Proportional output, bidirectional current XBLWversion1.0 www.xinboleic.com Technical support:4009682003 1 / 15 XBLW GT712 Hall Current Sensor Application scope  Inverter current detection  Motor phase current detection (motor control)  Photovoltaic inverter  Battery Load Testing System  Current Transformer  Switching Power Supply  Overload Protection Device Order Information Product Model Package Type GT712LBDTR-05B SOP-8 GT712LBDTR-20A GT712LBDTR-20A XBLWversion1.0 Packing Packing Qty GT712LB 05B XXX XBLW Tape 3000PCS/Reel SOP-8 GT712LB 20A XXX XBLW Tape 3000PCS/Reel SOP-8 GT712LB 30A XXX XBLW Tape 3000PCS/Reel www.xinboleic.com Marking Technical support:4009682003 2 / 15 XBLW GT712 Hall Current Sensor Functional Block Diagra Pin Information Name Number Function Name Number Function IP+ 1 positive current input terminal GND 5 Ground/Programming Pin IP+ 2 positive current input terminal TEST 6 Factory Testing/Floating IP- 3 negative current input terminal OUT 7 Signal Output/Programming Pin IP- 4 negative current input terminal VCC 8 Power Supply/Programming Pin XBLWversion1.0 www.xinboleic.com Technical support:4009682003 3 / 15 XBLW GT712 Hall Current Sensor Limiting Parameter Using the device beyond its limiting parameters may cause instability of the chip's functions, and prolonged exposure to such conditions may damage the chip. Symbol Parameter Minimum value Power supply voltage VCC Output voltage VOUT Output current source IOUT (source) Output current sink IOUT (sink) Working Environment Temperature TA Storage Temperature TS Maximum Junction Temperature TJ Endurance EEPROM Programming cycle number Transient surge current at current sampling terminal Maximum value Unit - 6 V - VCC-0.5 V - 80 mA - 40 mA -40 150 ℃ -65 170 ℃ - 165 ℃ 200 - IP1pulse100ms cycle 100 A Electrostatic Discharge(ESD) parameters Symbol VESD Human Body Model (HBM) XBLWversion1.0 Execution Standard Maximum Value Unit JEDECJS-001-2017 5 kV www.xinboleic.com Technical support:4009682003 4 / 15 XBLW GT712 Hall Current Sensor Electrical parameters Symbol VCC Parameter Test conditions Minimum value - 4.5 5 5.5 V Operating voltage Typical Maximum Unit value value ICC Operating current TA=25℃， Output No Load 9 11.18 13 mA BW Built-in bandwidth Smallsignal： –3dB， CL=1nF， TA=25℃ - 120 - KHz TPO TTC TA=25℃， CL=1nF, Sensitivity 2mV/G, Constant Magnetic Field: 400Gs Power-on time Temperaturecompensated power-on time VUVLOH Undervoltage lockout threshold VUVLOL VPORH Reset voltage VPORL tPORR ISCLP Power-on reset release time TA=150℃， CL=1nF, Sensitivity 2mV/G, Constant Magnetic Field: 400Gs 100 - - us TA=25℃， Voltage rises, Device starts operating. 4.1 V TA=25℃， Voltage drops, Device stops operating. 3.8 V TA=25℃， VCC rises. - 4.1 - V TA=25℃，VCC drops. - 3.8 - V TA=25℃，VCC rises. - 10 - us Maximum current source 80 ISCLN Maximum sink current - VOL Analog output saturation low level RL>=4.7KΩ VOH Analog output saturation high level RL>=4.7KΩ XBLWversion1.0 300 us www.xinboleic.com - 40 mA - 0.5 VCC-0.3 Technical support:4009682003 - mA V 4.97 V 5 / 15 XBLW GT712 Hall Current Sensor CL RL ROUT Output load capacitance VOUTtoGND Output load resistance 0.5 1 nF VOUTtoGND 10 - KΩ VOUTtoVCC 10 KΩ - 9 Ω Output resistance - Rise time TA=25°C, constant magnetic field 400Gs, CL=1nF, sensitivity 2mV/Gs. Transmission delay TA=25°C, constant magnetic field 400Gs, CL=1nF, sensitivity 2mV/Gs. Response time TA=25°C, constant magnetic field 400Gs, CL=1nF, sensitivity 2mV/Gs. - 4 5 us VN Noise TA=25°C, CL=1nF, sensitivity 2mV/Gs, BWf=Bwi. - 14.1 - mVp-p RP Main Current End Resistance 1.5 1.8 mΩ Elin Linear Error TA=25°C, CL=1nF, sensitivity 2mV/Gs, BWf=Bwi. - 0.4 Voq Quiescent Point TA=25°C, CL=1nF, sensitivity 2mV/Gs, BWf=Bwi. 2.485 2.500 tR TPD TRESP XBLWversion1.0 www.xinboleic.com - 5.5 - 4.5 Technical support:4009682003 us us % 2.515 V 6 / 15 XBLW GT712 Hall Current Sensor Accuracy parameter GT712LBDTR-05B Parameter. Condition Symbol. current range IP Zero Current Output Temperature Coefficient ΔVOUT(Q) Total Output Error ETOT Output Noise VNOISE(PP) Sensitivity Sensitivity Temperature Coefficient Unit ±5 A 0.26 mV/℃ -3.0 3.0 46 ΔSens Full Current Range TA=150°C, TA=40°C relative to 25°C Parameter Symbol Condition Current Range IP Sens Minimum Typical Maximum value value value 180 185 % mV 190 mV/A 0 %/℃ Minimum Typical Maximum value value value Unit GT712LBDTR-20A -20 Zero Current Output Temperature Coefficient ΔVOUT(Q) 20 0.26 Total Output Error ETOT Output Noise VNOISE(PP) Sensitivity Sensitivity Temperature Coefficient Sens ΔSens XBLWversion1.0 www.xinboleic.com -3.0 mV/℃ 3.0 30 Full Current Range TA=150°C, TA=-40°C relative to 25°C 96 100 0 Technical support:4009682003 A % mV 104 mV/A %/℃ 7 / 15 XBLW GT712 Hall Current Sensor GT712LBDTR-30A Parameter Symbol Current Range IP Condition Minimum Typical Maximum value value value -30 Zero Current Output Temperature Coefficient ΔVOUT(Q) 30 0.26 Total Output Error ETOT Sensitivity Sens Full Current Range Thermal coefficient of sensitivity ΔSens TA=150℃， TA=-40℃ ， relative to 25℃ Output Noise VNOISE(PP) -3.0 64 66.6 Unit A mV/℃ 3.0 % 69 mV/A 0 %/℃ 20 mV Feature definition 1.Power-on Time - TPO Power-on time: The time taken for the power supply to reach thePower-on time: The time taken for the power supply to reach the minimum operating voltage VCCM IN is t1; the time taken for the output to reach 90% of its steady value under an external magnetic field is t2. The difference between these two times is the power-on time. Figure 1: Definition of Power-on Time XBLWversion1.0 www.xinboleic.com Technical support:4009682003 8 / 15 XBLW GT712 Hall Current Sensor 2.Temperature Compensated Power-on Time - TTC After power-on, temperature trimming time is required before valid temperature compensation output. 3.Transmission Delay - TPD The time difference between the output reaching 20% of its final value when the external magnetic field reaches 20% of its final value. 4.Rise time - TR The time difference between the rise of the chip output level from 10% to 90%. Figure 3: Definition of Rise Time XBLWversion1.0 www.xinboleic.com Technical support:4009682003 9 / 15 XBLW GT712 Hall Current Sensor 5. Response Time - TRESP The time difference between when the external magnetic field applied to the chip reaches 80% of its final value and when the corresponding output value also reaches 80%. 6. Static Voltage Output - VOQ Under the condition that the power supply voltage of the chip and the ambient temperature are within the operating range, and the measured current is 0, the output of the chip is... Note: Prolonged operation at the maximum rated value may affect the reliability of the device. Exceeding the maximum rated value may damage the device. 7. Static Voltage Output Error - VOE The difference between the actual output voltage of the sensor and the ideal output voltage power supply when the measured current value is zero. In proportional output mode with power supply, the static voltage output error is the difference between the actual output error and VCC / 2. 8. Sensitivity Sensitivity indicates the change value of sensor output per 1A change of measured current, with the unit of mV/A. The calculation method is to pass through the positive full-scale current and negative fullscale current, and divide the difference between the output voltage at 2 points of the sensor by the difference between the positive full-scale current and negative full-scale current, which is the sensitivity of the sensor. The specific calculation formula is as follows: SENS = (Vout(IPma0) − Vout(Inma0))/(IPma0 − Inma0） Here, IPma0 and Inma0 are the positive full-scale current and negative full-scale current respectively, Vout(IPma0) and Vout(Inma0) are the analog output voltages of the sensor when passing through the positive full-scale current and negative full-scale current respectively. XBLWversion1.0 www.xinboleic.com Technical support:4009682003 10 / 15 XBLW GT712 Hall Current Sensor 9. Global Error Budget - ETOT This error value represents the maximum error of the sensor under various environmental conditions, which is equal to the absolute value of the measurement error within each temperature range, divided by the maximum output dynamic range of the sensor, over the full current measurement range. It can be expressed as follows: ETOT(IP)=Ma0(Vout –Vout_ idea)/(Vout(IPma0)-Voq) Here, Ma0 (Vout – Vout _ idea) represents the maximum error within the measurementHere, Ma0 (Vout – Vout _ idea) represents the maximum error within the measurement range and (Vout (IPma0) -Voq) represents the maximum output dynamic range of the sensor. 10. Non-linearity error - ELIN Due to the non-ideal characteristics of the sensor, the output voltageDue to the non-ideal characteristics of the sensor, the output voltage is not completely linear with the measured current in practical applications. After linear fitting by least squares method, the linearity error of the sensor can be obtained by dividing the maximum output error of the sensor by its dynamic range, i.e. ELIN (IP) = ∆Vout / (Vout (IPma0) -Voq). Here, ∆Vout is the maximum linearity error within the measuring range of the sensor. XBLWversion1.0 www.xinboleic.com Technical support:4009682003 11 / 15 XBLW GT712 Hall Current Sensor Characteristic curve XBLWversion1.0 www.xinboleic.com Technical support:4009682003 12 / 15 XBLW GT712 Hall Current Sensor Typical Application Circuit The typical application circuit of GT712 includes a filter capacitor CVcc between VCC and ground, as well as an optional filter capacitor CVout between the output and ground. At the input end of the measured current, pins 1 and 2 are shorted together to serve as the input end of the measured current, while pins 3 and 4 are shorted together to serve as the output end of the measured current. The analog output signal of the sensor is perfectly proportional to the AC/DC current being measured. Typical application circuit 3-Phase Motor Control Application Circuit XBLWversion1.0 www.xinboleic.com Technical support:4009682003 13 / 15 XBLW GT712 Hall Current Sensor Encapsulate data Dimensions (mm) Symbol A A1 A2 b c D e E E1 L θ XBLWversion1.0 Minimum value Dimensions (inches) Maximum value 1.350 0.100 1.350 0.330 0.170 4.800 1.750 0.250 1.550 0.510 0.250 5.000 1.270（BSC） 5.800 6.200 3.800 4.000 0.400 1.270 0° 8° www.xinboleic.com Minimum value Maximum value 0.530 0.004 0.053 0.013 0.007 0.189 0.069 0.010 0.061 0.020 0.010 0.197 0.050（BSC） 0.228 0.150 0.016 0° Technical support:4009682003 0.224 0.157 0.050 8° 14 / 15 XBLW GT712 Hall Current Sensor Declaration Shenzhen Xinbole Electronics Co., Ltd. reserves the right to modify the product manual without prior notice! Customers are advised to confirm if the information received is the latest version and verify the completeness of related information before placing an order. Under certain conditions, any semiconductor product may fail or malfunction. It is the buyer's responsibility to comply with safety standards and take appropriate safety measures when designing systems and manufacturing complete machines using products from Shenzhen Xinbole Electronics Co., Ltd. to avoid potential risks of failure that may cause personal injury or property damage. This document is for reference only, and the actual use should be based on the application test results. Product performance improvement is endless. Shenzhen Xinbole Electronics Co., Ltd. will sincerely provide customers with integrated circuit products with better performance and higher quality. XBLWversion1.0 www.xinboleic.com Technical support:4009682003 15 / 15