SLSS360-3

SLSS360 High Voltage Hall Effect Switch Sensor 1. Introduction SLSS360 Hall-Effect bipolar sensor, employed with high voltage bipolar technology, has been designed purposely for automotive and industrial applications, and operates with supply voltages from 3.8 V to 60 V in temperature range from -40 °C up to 150 °C. SLSS360 is available in SMD-package SOT23 and in the leaded version TO92S. 2. Features – Operates from 3.8 V to 60 V supply voltage – Overvoltage protection capability up to 80 V – Highest ESD performance up to ±4kV – Short-circuit protected open-drain output – Wide temperature range from -40 °C to 150 °C – Ideal sensor for applications in extreme automotive and industrial environments – Tiny SOT23 package and TO92S package 3. Potential Applications – Brushless DC motor commutation – Speed measurement – Revolution counting – Angular position detection – Proximity detection 4. Block Diagram The circuit includes temperature compensated voltage regular, Hall plate, signal amplifier and hysteresis comparator in single silicon chip. The regulated voltage provides the reference voltage for the hall plate. A magnetic field perpendicular to the sensor surface generates a hall voltage, which is amplified and then sent to a hysteresis comparator. VSUP Voltage Regulator RL VREF OUT Hall Plate AMP GND www.slkormicro.com 1 SLSS360 5. Pin Description GND 2 1 2 VSUP GND 3 VOUT 1 3 VSUP VOUT TO92S SOT23 6. Ordering information Partnumber package Packing Ambient, TA SLSS360-9 TO92S Bulk, 1000 pieces/bag -40℃ to 150℃ SLSS360-3 SOT23 Reel, 3000pieces/reel -40℃ to 150℃ 7. Pin assignment SOT23-3LPin TO92SPin number number 1 2 3 Name Function 1 2 VSUP GND 3 VOUT Power supply Ground Open collector with a internal pull-up resistor 8. Absolute Maximum Ratings Parameters Power supply Voltage Output voltage Output current sink Operating ambient temperature Storage temperature www.slkormicro.com Symbol VSUP VOUT Isink Min -0.5 -0.5 0 Max 80 80 40 Units V V mA Ta -40 150 ˚C Tstg -50 165 ˚C 2 SLSS360 High Voltage Hall Effect Switch Co.,Ltd 9. Electrical and magnetic characteristics(Ta=25˚C) Symbol Parameter Electrical characteristics VSUP Supply voltage ISUP Ile Supply current Leakage current Output saturation voltage Vsat Test conditions Min. Typ. Max. 3.8 Units 60 V Off state 8 10 mA uA On state 0.4 V 4.8 Tr Output rise time Rload=1kohms Cload=20pF 1 uS Tf Output fall time Rload=1kohms Cload=20pF 1.5 uS RL Built-in pull-up resistor Kohm 10 Magnetic characteristics Bop Operate point Brp Release point Bhys Hysteresis Rload=1kohms Cload=20pF 10 25 40 Gauss -40 -25 -10 Gauss 50 Gauss 10.Magnetoelectric conversion characteristics Apply a magnetic field greater than Bop on the seal side of TO92S package (near the South Pole), and the output becomes low;Apply a magnetic field less than Brp (near the North Pole) and the output becomes high.When the chip is first powered on, if the magnetic field is between the Bop and the Brp, the output state is in an undefined state (high or low).The magnetic field polarity of the operating and releasing points of SOT23-3L package is opposite to that of TO92S.See below. Output Voltage VOH BHYS VOL Brp VOUT=low www.slkormicro.com VOUT=high 0 Bop TO92S output state 3 B SLSS360 High Voltage Hall Effect Switch Alfa Electronics Co.,Ltd Output Voltage VOH BHYS VOL Brp VOUT=low VOUT=high 0 Bop SOT23-3L output state 11. Application Circuit Typical application circuit (see Fig. below) VSUP RL OUT GND An example of typical application circuit For applications with disturbances on the supply line or radiated disturbances, a series resistor RV and two capacitors CP and CL all placed close to the sensor are recommended (see Fig. below). For example: RV =100 ohms, CP = 4.7 nF, and CL = 1 nF. www.slkormicro.com B 4 SLSS360 High Voltage Hall Effect Switch Alfa Electronics Co.,Ltd VSUP RV RL OUT CP CL GND GND Example of application circuit 2 12. Outline dimensions symbol Size (mm) minimum maximum 1.42 1.67 0.056 0.066 A1 0.66 0.86 0.026 0.034 b 0.35 0.56 0.014 0.022 0.55 0.016 0.022 0.51 0.014 0.02 0.154 0.165 3.27 0.117 0.129 3.28 0.114 0.129 C D D1 5 minimum A b1 www.slkormicro.com maximum Size (in inches) 0.4 0.36 3.9 2.97 4.2 E 2.9 e 1.270 TYP e1 2.44 2.64 0.096 0.104 L 13.5 15.5 0.531 0.61 x 2.025TYP 0.080TYP y 1.545TYP 0.061TYP z 0.500TYP 0.020TYP θ 45˚TYP 0.050 TYP 45˚TYP SLSS360 SLSS360 package outline Size (mm) symbol Min. Max. Min. Max. A 1.05 1.25 0.041 0.049 A1 0 0.1 0 0.004 A2 1.05 1.15 0.041 0.045 b 0.3 0.5 0.012 0.02 c 0. 100 0.2 0.004 0.008 D 2.82 3.02 0.111 0.119 E 1.5 1.7 0.059 0.067 E1 2.65 2.95 0.104 0.116 e 6 0.950 TYP 0.037 TYP e1 1.8 2 0.071 0.079 L 0.3 0.6 0.012 0.024 x 1.460TYP 0.057TYP y 0.800TYP 0.032TYP z 0.600TYP 0.024TYP θ www.slkormicro.com Size (inches) 0˚ 8˚ 0˚ 8˚