Datasheet Omnipolar Detection Hall IC (Dual Outputs for both S and N Pole Polarity Detection) BU52075GWZ General Description Key Specifications The BU52075GWZ is omnipolar Hall IC incorporating a V Voltage Range: 1.65V to 3.6V DD polarity determination circuit that enables separate Operate Point: 9.5mT(Typ) operation (output) of both the South and North poles. Hysteresis: 0.9mT(Typ) The polarity judgment is based on the output processing Period: 50ms(Typ) configuration. Supply Current (AVG): 5.0A (Typ) This Hall IC product can be in tablets, smart phones, and Output Type: CMOS other applications in order to detect open and close of Operating Temperature Range: -40C to +85C the cover. And this Hall IC product can be in digital video cameras Package W(Typ) x D(Typ) x H(Max) and other applications involving display panels in order UCSP35L1 0.80mm x 0.80mm x 0.40mm to detect the front/back location or determine the rotational direction of the panel. Features Omnipolar Detection (Polarity Detection for both S and N Poles with Separate, Dual Outputs) Micro Power Operation (Small Current Using Intermittent Operation Method) Ultra-compact CSP4 Package (UCSP35L1) Polarity Judgment and Separate Output on both Poles (OUT1=S-pole Output OUT2=N-pole Output) High ESD Resistance 8kV(HBM) Applications Tablets, Smart Phones, Notebook Computers, Digital Video Cameras, Digital Still Cameras, etc. Typical Application Circuit, Block Diagram, Pin Configurations and Pin Descriptions V DD 0.1F B1 Adjust the bypass capacitor value TIMING as necessary, according to voltage LOGIC noise conditions, etc. HALL OUT1 B2 ELEMENT The CMOS output terminals GND enable direct connection to V DD the PC, with no external pull-up resistor required. A2 OUT2 A1 GND (TOP VIEW) (BOTTOM VIEW) Pin No. Pin Name Function A2 A1 A1 A2 A1 GND Ground A2 OUT2 Output (React to the north pole) B1 V Power supply DD B2 B1 B2 B1 B2 Output (React to the south pole) OUT1 Product structure : Silicon monolithic integrated circuit This product has no designed protection against radioactive rays . www.rohm.com TSZ02201-0M2M0F414030-1-2 2014 ROHM Co., Ltd. All rights reserved. 1/16 TSZ22111 14 001 17.Oct.2014 Rev.001 DYNAMIC OFFSET CANCELLATION SAMPLE & HOLD LATCH LATCH BU52075GWZ Contents General Description .................................................................................................................................................... 1 Features ....................................................................................................................................................................... 1 Applications ................................................................................................................................................................ 1 Key Specifications ...................................................................................................................................................... 1 Package W(Typ) x D(Typ) x H(Max) ........................................................................................................................ 1 Typical Application Circuit, Block Diagram, Pin Configurations and Pin Descriptions ...................................... 1 Absolute Maximum Ratings (Ta = 25C) ................................................................................................................... 3 Recommended Operating Conditions (Ta= -40C to +85C) ................................................................................... 3 Magnetic, Electrical Characteristics (Unless otherwise specified V =1.80V Ta=25C)...................................... 3 DD Measurement Circuit .................................................................................................................................................. 4 Typical Performance Curves ..................................................................................................................................... 5 Figure 6. Operate Point, Release Point vs Ambient Temperature ...................................................................... 5 Figure 7. Operate Point, Release Point vs Supply Voltage ................................................................................. 5 Figure 8. Period vs Ambient Temperature ............................................................................................................ 5 Figure 9. Period vs Supply Voltage ....................................................................................................................... 5 Figure 10. Supply Current vs Ambient Temperature ........................................................................................... 6 Figure 11. Supply Current vs Supply Voltage....................................................................................................... 6 Description of Operations .......................................................................................................................................... 7 Intermittent Operation at Power ON ....................................................................................................................... 10 Magnet Selection ...................................................................................................................................................... 10 Slide-by Position Sensing ........................................................................................................................................ 11 Position of the Hall Element (Reference) ............................................................................................................... 11 Footprint Dimensions (Optimize footprint dimensions to the board design and soldering condition) .......... 11 I/O Equivalence Circuit ............................................................................................................................................. 11 Operational Notes ..................................................................................................................................................... 12 Ordering Information ................................................................................................................................................ 14 Marking Diagrams ..................................................................................................................................................... 14 Physical Dimension, Tape and Reel Information ................................................................................................... 15 Revision History ....................................................................................................................................................... 16 www.rohm.com TSZ02201-0M2M0F414030-1-2 2014 ROHM Co., Ltd. All rights reserved. 2/16 TSZ22111 15 001 17.Oct.2014 Rev.001