SS657 Unipolar Hall-Effect Digital Switch Packages Features and Benefits – – – – – – 4.5V to 6V Operation Miniature construction Low-Noise Output Magnetically Optimized Package Linear output for circuit design flexibility Temperature range of -40 °C to 150 °C 3 pin SIP (suffix UA) Functional Block Diagram Application Examples – – – – – 1 REG Motor control Magnetic code reading Ferrous metal detector Current sensing Position sensing 1 V cc 3 V out 3 2 2 GND General Description SS657 Linear Hall-effect sensor is small, versatile linear Hall-effect device that is operated by the magnetic field from a permanent magnet or an electromagnet. The linear sourcing output voltage is set by the supply voltage and varies in proportion to the strength of the magnetic field. The integrated circuitry features low noise output, which makes it unnecessary to use external filtering. It also includes thin film resistors to provide increased temperature stability and accuracy. The linear Hall sensor has an operating temperature range of -40 °C to 150 °C appropriate for commercial, consumer and industrial environments. Glossary of Terms MilliTesla (mT), Gauss RoHS Operating Point (B OP ) Release Point (B RP ) Units of magnetic flux density: 1mT = 10 Gauss Restriction of Hazardous Substances Magnetic flux density applied on the branded side of the package which turns the output driver ON (V OUT = V DSon ) Magnetic flux density applied on the branded side of the package which turns the output driver OFF (V OUT = high) 1 V2.10 May 1, 2012 SS657 Unipolar Hall-Effect Digital Switch Pin Definitions and Descriptions SOT Pin № Name Status Description 1 VDD P Power Supply 2 OUT P IC Ground 3 GND O Output Table 1: Pin definitions and descriptions Absolute Maximum Ratings Parameter Symbol Supply Voltage( operating) V CC Output Current I OUT Operating Temperature Range T A Storage Temperature Range TS Table 2: Absolute maximum ratings Value 8.0 20 -40 to 85 -65 to 150 Units V mA °C °C Electrical Characteristics DC Operating Parameters T A = 25℃, V CC = 5.0V Parameter Symbol Operating Voltage V CC Supply Current I CC Output Current I OUT Response Time T ack Quiescent Output Voltage VO Sensitivity △V OUT Min Output Voltage Max Output Voltage Table 3: Electrical Characteristics Test Conditions Min Operating Average 3.0 1.0 B = 0G T A =25°C B = -1500G B = 1500G 2.25 1.6 2 Typ 4.2 1.5 3 2.5 1.8 0.86 4.21 Max Units 6.5 8.0 V mA mA µs V mV/G V V 2.75 2.0 V2.10 May 1, 2012 SS657 Unipolar Hall-Effect Digital Switch Performance Characteristics 3 V2.10 May 1, 2012 SS657 Unipolar Hall-Effect Digital Switch Package UA, 3-Pin SIP: Ordering Information Part No. Pb-free Temperature Code Package Code Packing SS657EUA YES E (-40°C to 85°C) UA(TO-92) Bulk, 1000 pieces/bag SS657KUA YES E (-40°C to 125°C) UA(TO-92) Bulk, 1000 pieces/bag SS657LUA YES E (-40°C to150°C) UA(TO-92) Bulk, 1000 pieces/bag 4 V2.10 May 1, 2012