WSH315 Linear Hall Effect Sensor IC Features: Wide operating range 3.0~12V, -40℃~125℃ Flat Response to 23kHz High Sensitivity 1.5 mV/Gauss Wide output voltage range 0.2~4.8V (at Vdd=5V) Low temperature drift ± 0.2 mV/℃ Wide sensible magnetic field range on different supplied voltage ±1,500 Gauss on 5V supplied voltage ±3,000 Gauss on 12V supplied voltage. Low operating current 3mA Two package styles TO-92S/SOT-23 available. Functional Description : The WSH315 is a new version of WSH135 with better measuring range and thermal shift. It integrates Hall sensing element, linear amplifer, sensitivity controller and emitter follower output stage.It accurately tracks extremely small change in magnetic flux density –generally too small to operate Hall effect switch. W315 can be applied as current sensor, tooth sensor, proximity detectors and motion detectors. As sensitive monitor of magnetic flux, it can effectively measure a system’s performance with negligible system loading while providing isolation from contaminated and electrically noisy environments. Winson reserves the right to make changes to improve reliability or manufacturability. ©Winson, 2017/4/7 Page 1 WSH315 Electrical Characteristics: Characteristic Supply Voltage Symbol Vcc Supply Current Isupply Quiescent Vout V0G Sensitivity △Vout Bandwidth BW Measurable Guass Range Temperature Drift MGR △Vout (T=+25˚C, Vdd=5.0V ) Test Conditions Min 3.0 ─ Typ B=0 Gauss B=0 G (Grade A) B=0 G (Grade B) B= 0 to ± 500 G Vdd=5V Vdd=12V B=0 Gauss ─ Max 12 Units V ─ 3.0 5.0 mA 2.45 2.35 1.2 2.5 2.5 1.5 2.55 2.65 1.8 V V mV/G － 23 － kHz － － － ±1500 ±3000 ±0.2 － － － Guass mV/℃ 1. All output-voltage measurements are made with a voltmeter having an input impedance of at least 100kΩ 2. Do not apply any load on output pin, it will degrade IC’s performance. Winson reserves the right to make changes to improve reliability or manufacturability. ©Winson, 2017/4/7 Page 2 WSH315 Package Information: TO92S: SOT23: Winson reserves the right to make changes to improve reliability or manufacturability. ©Winson, 2017/4/7 Page 3 WSH315 Electrical Characteristic Diagram: WSH315 Sensitivity standardization of 30℃ VS. Temperature 1.200 1.000 0.800 0.600 0.400 0.200 0.000 比值 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 0.841 0.905 0.939 0.968 0.990 0.996 0.996 1.000 0.988 0.980 0.949 0.930 0.902 0.873 0.835 0.800 0.764 WSH315 Vout vs. Magnetic field with Vdd 5V 6.000 5.000 y = 0.0015x + 2.4812 R² = 0.9993 4.000 V 3.000 2.000 1.000 0.000 -2500 N -2000 -1500 -1000 -500 0 500 1000 1500 2000 S G 2500 WSH315 Vout vs. Magnetic field with Vdd 3.3V 3.500 3.000 y = 0.0013x + 1.6911 R² = 0.9988 2.500 2.000 V 1.500 1.000 0.500 0.000 -1800 -1600 -1400 -1200 -1000 -800 -600 -400 -200 0 200 400 600 800 1000 1200 1400 1600 1800 G N Winson reserves the right to make changes to improve reliability or manufacturability. ©Winson, 2017/4/7 Page 4 S ˚C WSH315 WSH315 Sensitivity vs. Vdd 2 1.9 1.8 1.7 1.6 mV/G 1.5 1.4 1.3 1.2 1.1 1 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 V WSH315 current vs.Vdd 5.500 5.000 4.500 mA 4.000 3.500 3.000 2.500 2.000 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 10.0 11.0 12.0 13.0 V WSH315 Vout vs. Vdd 7.000 6.000 5.000 V 4.000 3.000 2.000 1.000 3.0 4.0 5.0 6.0 7.0 8.0 9.0 V Winson reserves the right to make changes to improve reliability or manufacturability. ©Winson, 2017/4/7 Page 5