WSH135 Features: Wide operating range 3.0~12V, -20 ~8 Flat Response to 23kHz Low noise output Wide sensible magnetic field range on different supplied voltage ±1,500 Guass on 5V supplied voltage ±4,500 Guass on 12V supplied voltage. Low operating current 3mA Two package styles TO-92S/SOT-23 available. Functional Description : The WSH135 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. WSH135 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, 2006/2/21 WSH135 Characteristic Supply Voltage Supply Current Quiescent Vout Sensitivity Bandwidth Measurable Guass Range Symbol Vcc Isupply Vout Test Conditions B=0 Guass B=0 Guass B= 0 to Min (T=+25˚C, Vdd=5.0V ) Typ Max Units V mA 2.5 mV/G Vdd=5V Vdd=12V All output-voltage measurements are made with a voltmeter having an input impedance of at least 100 Winson reserves the right to make changes to improve reliability or manufacturability. ©Winson, 2006/2/21 kHz Guass WSH135 TO92S: Winson reserves the right to make changes to improve reliability or manufacturability. ©Winson, 2006/2/21 WSH135 Output Null Volta ge vs. Supply Volta ge 7.0 6.0 5.0 4.0 3.0 2.0 1.0 3 4 5 6 7 8 9 10 11 12 Supply Voltage Supply Current vs. Supply Voltage 6 5.5 5 4.5 4 3.5 3 2.5 2 3 4 5 6 7 8 9 10 11 12 Supply Voltage Device Sensitivity vs. Supply Voltage 2 1.8 1.6 1.4 1.2 1 0.8 0.6 0.4 0.2 0 3 4 5 6 7 8 9 10 11 Supply Voltage Winson reserves the right to make changes to improve reliability or manufacturability. ©Winson, 2006/2/21 12 WSH135 Measurable Magnetic Flux vs. Supply Voltage 6,000 5,000 4,000 3,000 2,000 1,000 0 3 4 5 6 7 8 9 10 11 12 Supply Voltage Output Voltage vs. Temperature 4.0 3.5 3.0 S 500G 0G 2.5 N 500G 2.0 1.5 1.0 -20 -10 0 10 20 30 40 50 60 70 80 90 100 Tem perature Winson reserves the right to make changes to improve reliability or manufacturability. ©Winson, 2006/2/21