Low-cost Digital Bipolar Hall-effect Sensor ICs, 32312814 Issue A SS41F, SS41G Datasheet FEATURES Small, leaded, flat TO-92-style package allows for a compact PCB layout Wide operating voltage range of 4.5 Vdc to 24 Vdc allows these sensors to be used in a variety of applications Current consumption of only 5 mA max. at 4.5 Vdc for energy efficiency Bipolar magnetics for ring magnet applications with alternating North and South poles Robust design: Will operate up to 150 C 302 F RoHS-compliant materials meet Directive 2002/95/EC POTENTIAL APPLICATIONS Transportation DESCRIPTION Speed and RPM sensing Commutation and control of electric motors used in The SS41F and SS41G are small, versatile digital Hall-effect transportation devices that are operated by the magnetic field from a permanent magnet or an electromagnet, and are designed to Industrial and Commercial respond to alternating North and South poles. Flow-rate sensing for appliances Tachometer counter pickup A built-in regulator provides enhanced stability of operation Brushless dc motor commutation over 4.5 Vdc to 24 Vdc supply voltage range, and internal Motor and fan control for commercial, consumer or industrial circuitry is designed to prevent sensor damage in case the equipment supply voltage polarity is accidentally reversed. Medical The open-collector sinking output voltage is easily interfaced Any medical equipment or instruments using electric motors with a wide variety of electronic circuits. The SS41F is factory tested at 25 C 77 F and the SS41G is factory tested at both 25 C 77 F and 125 C 257 F . PORTFOLIO The SS41F, SS41G are part of Honeywells family of low-cost Both products are designed for high volume applications. digital bipolar Hall-effect sensor ICs, including: These products are available in one package style: SS30AT, SS40A, SS50AT SS41F, SS41G : Flat TO-92-style package with straight leads SS311PT, SS411P in bulk packaging which allows for a compact PC board SS411A, SS413A layout SS51T, SS511AT, SS513AT Sensing and Productivity SolutionsLow-cost Digital Bipolar Hall-effect Sensor ICs, SS41F, SS41G Table 1. SS41F Electrical and Environmental Specifications (At V = 4.5 Vdc to 24.0 Vdc, 20 mA load, T = 25 C 77 F except where otherwise specified. supply A Characteristic CCondition Min. Typ. Max. Unit Supply voltage 4.5 24.0 Vdc Supply current 6.8 10.0 mA Output current 20.0 mA V at 15 mA V = 12 Vdc, Bop >170 0.4 V sat supply < Output leakage current V = 24 Vdc, Brp -170 10.0 uA supply Rise time V = 4.5 Vdc 0.5 1.5 us supply Fall time V = 4.5 Vdc 0.2 1.5 us supply Magnetic characteristics: operate (Bop) 40 150 Gauss release (Brp) -150 -40 differential 40 Operating temperature -40 -40 150 302 C F Storage temperature -40 -40 150 302 C F ESD (Human Body Model) per JEDEC JS-001 3-3 +3 kV Soldering temperature and time PC board wave soldering process: 250 C to 260 C 482 F to 500 F for 3 s max. Table 2. SS41G Electrical and Environmental Specifications (At V = 4.5 Vdc to 24.0 Vdc, 20 mA load, T = -40 C to 150 C -40 F to 302 F except where otherwise specified. supply A Characteristic CCondition Min. Typ. Max. Unit Supply voltage 4.5 24.0 Vdc Supply current: ouptut off 6.8 10.0 mA output on 11.3 Output current 20.0 mA V at 20 mA V = 12.0 Vdc, Brp >170, 25 C 77 F 0.4 V sat supply < Output leakage current V = 24.0 Vdc, Brp -170 10.0 A supply Rise time 25 C 77 F 0.5 1.5 s Fall time 25 C 77 F 0.2 1.5 s Magnetic characteristics: operate (Bop) 40 150 25 C 77 F operate (Bop) 250 Gauss release (Brp) -140 -40 25 C 77 F release (Brp) -250 differential 40 Operating temperature -40 -40 150 302 C F Storage temperature -40 -40 150 302 C F ESD (Human Body Model) per JEDEC JS-001 --3 +3 kV Soldering temperature and time PC board wave soldering process: 250 C to 260 C 482 F to 500 F for 3 s max. NOTICE NOTICE CAUTION ELECTROSTATIC These Hall-effect sensor ICs may have an The magnetic field strength (Gauss) SENSITIVE initial output in either the ON or OFF state required to cause the switch to change DEVICES if powered up with an applied magnetic state (operate and release) will be as DO NOT OPEN OR HANDLE EXCEPT AT A field in the differential zone (applied specified in the magnetic characteristics. STATIC FREE WORKSTATION magnetic field >Brp and <Bop). Honeywell To test the switch against the specified ESD SENSITIVITY: recommends allowing 10 s after supply limits, the switch must be placed in a CLASS 2 voltage has reached 3 V for the output uniform magnetic field. voltage to stabilize. Sensing and Productivity Solutions 2