AH49E(AH49E-datasheet).pdf-资料库

LINEAR HALL-EFFECT IC AH49E General Description Features Preliminary Datasheet The AH49E is a small, versatile linear Hall-effect device that is operated by the magnetic field from a permanent magnet or an electromagnet. The output voltage is set by the supply voltage and varies in pro- portion 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 precision resistors to provide increased temperature stability and accuracy. The operating tem- perature range of these linear Hall sensors is -40oC to 85oC, appropriate for commercial, consumer and industrial applications. The AH49E is available in standard TO-92S package. · Miniature Construction · Power Consumption of 3.5mA at VCC=5V for Energy Efficiency · Single Current Sourcing Output · Linear Output for Circuit Design Flexibility · Low Noise Output Virtually Eliminates the Need for Filtering · A Stable and Accurate Output · Temperature Range of -40oC to 85oC · Responds to Either Positive or Negative Gauss Applications · Current Sensing · Motor Control · Position Sensing · Magnetic Code Reading · Ferrous Metal Detector · Vibration Sensing · Liquid Level Sensing · Weight Sensing TO-92S Figure 1. Package Type of AH49E Jun. 2008 Rev. 1. 1 BCD Semiconductor Manufacturing Limited 1

LINEAR HALL-EFFECT IC AH49E Pin Configuration Preliminary Datasheet Z3 Package (TO-92S ) 3 2 1 OUT GND VCC Figure 2. Pin Configuration of AH49E (Bottom View) Pin Description Pin Number Pin Name 1 2 3 VCC GND OUT Supply voltage Ground pin Output Function Jun. 2008 Rev. 1. 1 BCD Semiconductor Manufacturing Limited 2

LINEAR HALL-EFFECT IC AH49E Functional Block Diagram Preliminary Datasheet HALL Sensor Amplifier 1 3 2 VCC OUT GND 65µA Typ. Figure 3. Functional Block Diagram of AH49E Ordering Information AH49E - Circuit Type Package Z3: TO-92S E1: Lead Free G1: Green Blank: Bulk Package TO-92S Temperature Range -40 to 85oC Part Number Marking ID Lead Free AH49EZ3-E1 Green AH49EZ3-G1 Lead Free Green AH49E AH49G Packing Type Bulk BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant. Products with "G1" suffix are available in green package. Jun. 2008 Rev. 1. 1 BCD Semiconductor Manufacturing Limited 3

LINEAR HALL-EFFECT IC AH49E Absolute Maximum Ratings (Note 1) Preliminary Datasheet Parameter Supply Voltage Output Current Operating Temperature Storage Temperature Range ESD (Human Body Model) Symbol VCC IO TA TSTG Value 8 10 -40 to 100 -50 to 150 3000 Unit V mA oC oC V Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indi- cated under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum Ratings" for extended periods may affect device reliability. Recommended Operating Conditions Parameter Supply Voltage Symbol Operating Temperature VCC TOP Min 3.0 -40 Max 6.5 85 Unit V oC Jun. 2008 Rev. 1. 1 BCD Semiconductor Manufacturing Limited 4

LINEAR HALL-EFFECT IC AH49E Electrical Characteristics (VCC=5V, TA=25oC, unless otherwise specified.) Preliminary Datasheet Parameter Supply Current Quiescent Output Voltage Symbol Conditions ICC VNULL @ B=0GS Output Voltage Sensitivity B=0GS to ±1000GS Min 2.25 1.1 Typ 3.5 2.5 1.6 1.0 to (VCC-1.0) 0.8 to (VCC-0.8) Output Voltage Span Output Resistor Magnetic Field Range Linearity of Span Output Noise VOS RO B ±650 BW=10Hz to 10kHz Max 4.5 2.75 2.1 120 Unit mA V mV/GS V Ω GS % µV Typical Output Voltage B (Gauss) 60 ±1000 0.7 90 V 4.0 V 2.5 V 1.0 V -1000 -500 0 500 1000 Figure 4. The Transfer Characteristics of AH49E Transfer Characteristics (VCC=5V) When there is no ouside magnetic field (B=0GS), the quiescent output voltage is one-half the supply voltage in general. If a south magnetic pole approches to the front face (the side with marking ID) of the Halleffect sensor, the circuit will drive the output voltage higher. Contrary, a north magnetic pole will drive the output voltage lower. The variations of voltage level up or down are symmetrical. Greatest magnetic sensitivity is obtained with a supply voltage of 6V, but at the cost of increased supply current and a slight loss of output symmetry. So, it is not recommended to work in such condition unless the output voltage magnitude is a main issue. The output signal can be capacitively coupled to an amplifier for boosting further if the changing frequency of the magnetic field is high. Jun. 2008 Rev. 1. 1 BCD Semiconductor Manufacturing Limited 5

LINEAR HALL-EFFECT IC AH49E Typical Performance Characteristics Preliminary Datasheet ) ( V T U O V 5 4 3 2 1 0 VCC=5V No load -1000 -500 0 B(GS) 500 1000 ) ( V T U O V 5 4 3 2 1 0 B=0GS No load 2 3 4 6 7 8 5 VCC(V) Figure 5. Output Voltage vs. Magnetic Field Figure 6. Output Voltage vs. Supply Voltage ) ( V T U O V 5 4 3 2 1 0 VCC=5V B=0GS No load -50 0 50 TA(OC) 100 Figure 7. Output Voltage vs. Ambient Temperature Jun. 2008 Rev. 1. 1 BCD Semiconductor Manufacturing Limited 6

LINEAR HALL-EFFECT IC AH49E Mechanical Dimensions Preliminary Datasheet TO-92S Unit: mm(inch) ° 44 ° 46 0.710(0.028) 0.810(0.032) 4.000(0.157) 4.200(0.165) 2.200(0.087) 1.900(0.075) 1.480(0.058) 1.680(0.066) 1.350(0.053) 1.050(0.041) 3.080(0.121) 3.280(0.129) 2.200(0.087) 2.400(0.094) Package Sensor Location 0.440(0.017) TYP 13.500(0.531) 14.500(0.571) 1.270(0.050) TYP 0.380(0.015) TYP Jun. 2008 Rev. 1. 1 BCD Semiconductor Manufacturing Limited 7

IMPORTANT NOTICE BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any products or specifi- cations herein. BCD Semiconductor Manufacturing Limited does not assume any responsibility for use of any its products for any particular purpose, nor does BCD Semiconductor Manufacturing Limited assume any liability arising out of the application or use of any its products or circuits. BCD Semiconductor Manufacturing Limited does not convey any license under its patent rights or other rights nor the rights of others. MAIN SITE - Headquarters BCD Semiconductor Manufacturing Limited No. 1600, Zi Xing Road, Shanghai ZiZhu Science-based Industrial Park, 200241, China Tel: +86-21-24162266, Fax: +86-21-24162277 REGIONAL SALES OFFICE Shenzhen Office Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd., Shenzhen Office Room E, 5F, Noble Center, No.1006, 3rd Fuzhong Road, Futian District, Shenzhen, 518026, China Tel: +86-755-8826 7951 Fax: +86-755-8826 7865 - Wafer Fab Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd. 800 Yi Shan Road, Shanghai 200233, China Tel: +86-21-6485 1491, Fax: +86-21-5450 0008 Taiwan Office BCD Semiconductor (Taiwan) Company Limited 4F, 298-1, Rui Guang Road, Nei-Hu District, Taipei, Taiwan Tel: +886-2-2656 2808 Fax: +886-2-2656 2806 USA Office BCD Semiconductor Corp. 30920 Huntwood Ave. Hayward, CA 94544, USA Tel : +1-510-324-2988 Fax: +1-510-324-2788 IMPORTANT NOTICE BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any products or specifi-cations herein. BCD Semiconductor Manufacturing Limited does not assume any responsibility for use of any its products for anyparticular purpose, nor does BCD Semiconductor Manufacturing Limited assume any liability arising out of the application or useof any its products or circuits. BCD Semiconductor Manufacturing Limited does not convey any license under its patent rights orother rights nor the rights of others.- Wafer FabShanghai SIM-BCD Semiconductor Manufacturing Limited800, Yi Shan Road, Shanghai 200233, ChinaTel: +86-21-6485 1491, Fax: +86-21-5450 0008BCD Semiconductor Manufacturing LimitedMAIN SITEREGIONAL SALES OFFICEShenzhen OfficeShanghai SIM-BCD Semiconductor Manufacturing Co., Ltd. Shenzhen OfficeAdvanced Analog Circuits (Shanghai) Corporation Shenzhen OfficeRoom E, 5F, Noble Center, No.1006, 3rd Fuzhong Road, Futian District, Shenzhen 518026, China Tel: +86-755-8826 7951Fax: +86-755-8826 7865Taiwan OfficeBCD Semiconductor (Taiwan) Company Limited4F, 298-1, Rui Guang Road, Nei-Hu District, Taipei, TaiwanTel: +886-2-2656 2808Fax: +886-2-2656 2806USA OfficeBCD Semiconductor Corporation30920 Huntwood Ave. Hayward,CA 94544, U.S.ATel : +1-510-324-2988Fax: +1-510-324-2788- IC Design GroupAdvanced Analog Circuits (Shanghai) Corporation8F, Zone B, 900, Yi Shan Road, Shanghai 200233, ChinaTel: +86-21-6495 9539, Fax: +86-21-6485 9673BCD Semiconductor Manufacturing Limitedhttp://www.bcdsemi.com BCD Semiconductor Manufacturing Limited

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AH49E(AH49E-datasheet).pdf

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