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1、 SS3313 CMOS Omnipolar High Sensitivity Micropower Hall Switch 1 V3.10 Nov 1, 2013 Features Solid-State Reliability much better than reed switch Omnipolar, output switches with absolute value of North or South pole from magnet Wide operating voltage range from 3.5V to 24V High sensitivity for direct
2、 reed switch replace- ment applications Applications Solid state switch Speed detection Interrupter Magnet proximity sensor for reed switch re- placement 3 pin SOT23 (suffix SO) 3 pin SIP (suffix UA) General Description The SS3313 Omnipolar Hall effect sensor IC is fab- ricated from mixed signal CMO
3、S technology .It in- corporates advanced chopper-stabilization techniques to provide accurate and stable magnetic switch points. The output transistor of the SS3313 will be latched on (BOP) in the presence of a sufficiently strong South or North magnetic field facing the marked side of the package.
4、The output will be latched off (BRP) in the absence of a magnetic field. The chopper stabilized amplifier uses switched capac- itor techniques to eliminate the amplifier offset volt- age, which, in bipolar devices, is a major source of temperature sensitive drift. CMOS makes this ad- vanced techniqu
5、e possible. The CMOS chip is also much smaller than a bipolar chip, allowing very so- phisticated circuitry to be placed in less space. The small chip size also contributes to lower physical stress and less power consumption. Functional Block Diagram SS3313 CMOS Omnipolar High Sensitivity Micropower
6、 Hall Switch 2 V3.10 Nov 1, 2013 Glossary of Terms MilliTesla (mT), Gauss Units of magnetic flux density: 1mT = 10 Gauss RoHS Restriction of Hazardous Substances ESD Electro-Static Discharge Operating Point (BOP) Magnetic flux density applied on the branded side of the package which turns the output
7、 driver ON (VOUT = VDSon) Release Point (BRP) Magnetic flux density applied on the branded side of the package which turns the output driver OFF (VOUT = high) Pin Definitions and Descriptions SOT Pin SIP Pin Name Type Function 1 1 VDD Supply Supply Voltage pin 2 3 OUT Output Open Drain Output pin 3
8、2 GND Ground Ground pin Absolute Maximum Ratings Parameter Symbol Value Units Supply Voltage(operating) VDD 28 V Supply Current IDD 5 mA Output Voltage VOUT 28 V Output Curent IOUT 10 mA Operating Temperature Range TA -40 to 150 C Storage Temperature Rang TS -50 to 165 C ESD Sensitivity - 4000 V Exc
9、eeding the absolute maximum ratings may cause permanent damage. Exposure to absolute-maximum rated conditions for ex- tended periods may affect device reliability. SS3313 CMOS Omnipolar High Sensitivity Micropower Hall Switch 3 V3.10 Nov 1, 2013 DC Electrical Characteristics DC Operating Parameters:
10、 TA = 25C, VDD=5V. Parameter Symbol Test Conditions Min Typ Max Units Operating voltage VDD Operating 3.5 24 V Supply current IDD B BOP 0.5 V Output Leakage Current IOFF B BRP VOUT = 24V 1 10 A Output Rise Time tr RL = 1k, CL = 20pF 0.25 s Output Fall Time tf RL = 1k, CL = 20pF 0.25 s Maximum Switch
11、ing Frequency FSW - 10 KHz Package Thermal Re- sistance RTH Single layer (1S) Jedec board 301 C/W Magnetic Characteristics Operating Parameters: TA = 25C, VDD=5V DC. PARAMETER Symbol Min Type Max Units Operating Point Bop - +/-35 +/-60 Gs Release Point Brp +/-10 +/-20 - Gs Hysteresis Bhys - 15 - Gs
12、ESD Protection Human Body Model (HBM) tests according to: Mil. Std. 883F method 3015.7 Parameter Symbol Limit Values Unit Notes Min Max ESD Voltage VESD 2 4 kV ESD Precautions Electronic semiconductor products are sensitive to Electro Static Discharge (ESD). Always observe Electro Static Discharge c
13、ontrol procedures whenever handling semiconductor products. SS3313 CMOS Omnipolar High Sensitivity Micropower Hall Switch 4 V3.10 Nov 1, 2013 Installation Comments Consider temperature coefficients of Hall IC and magnetic , as well as air gap and life time variations. Observe temperature limits duri
14、ng wave soldering. Typical IR solder-reflow profile: No Rapid Heating and Cooling. Recommended Preheating for max. 2minutes at 150C Recommended Reflowing for max. 5seconds at 240C Application Information It is strongly recommended that an external bypass capacitor be connected (in close proximity to
15、 the Hall sensor) between the supply (VDD Pin) and ground (GND Pin) of the device to reduce both external noise and noise gener- ated by the chopper stabilization technique. As is shown in the following two figures, a 0.1F capacitor is typical. For reverse voltage protection, it is recommended to co
16、nnect a resistor or a diode in series with the VDD pin. When using a resistor, three points are important: - the resistor has to limit the reverse current to 50mA maximum (VCC / R1 50mA) - the resulting device supply voltage VDD has to be higher than VDD min (VDD = VCC R1*IDD) - the resistor has to withstand the power dissipated in reverse voltage condition (PD = VCC2/R1) When using a diod
