Datasheet Omnipolar Detection Hall IC (Dual Outputs for both S and N Pole Polarity Detection) BU52271NUZ General Description Key Specifications The omnipolar detection Hall IC incorporating a polarity V Voltage Range: 1.65 V to 3.60 V DD determination circuit enables separate operation (output) Operate Point: 1.7 mT(Typ) of both the South and North poles. Using a magnet and Hysteresis: 0.4 mT(Typ) the device, detection of open and close of the cover are Period: 50 ms(Typ) possible in tablets, smart phones, and other applications Supply Current(Average): 4.4 A (Typ) and detection of front/back side or rotational direction are Output Type: CMOS possible in digital video cameras and other applications Operating Temperature Range: -40 C to +85 C involving display panels. Package W(Typ) x D(Typ) x H(Max) VSON04Z1114A 1.10 mm x 1.40 mm x 0.40 mm Features Omnipolar Detection (OUT1=S-pole Detection OUT2=N-pole Detection) Micro Power Operation (Small Current Using Intermittent Operation Method) Ultra-compact Package Applications Tablets, Smart Phones, Notebook Computers, Digital Video Cameras, Digital Still Cameras, etc. Typical Application Circuit and Block Diagram VDD 0.1 F Adjust the bypass capacitor value as necessary, according to power TIMING supply noise conditions, etc. LOGIC OUT1 GND VDD OUT2 HALL ELEMENT GND Pin Descriptions Pin Configurations Pin No. Pin Name Function TOP VIEW VDD OUT2 (Note 1) 1 VDD Power supply 1 4 2 GND Ground 3 OUT1 Output (Detect the south pole) EXP-PAD 3 4 2 OUT2 Output (Detect the north pole) GND OUT1 The EXP-PAD connect to GND - or floating. EXP-PAD No connection internally. (Note 1) Dispose a bypass capacitor between VDD and GND. Product structure : Silicon integrated circuit This product has no designed protection against radioactive rays .w ww.rohm.com TSZ02201-0M2M0F418070-1-2 2018 ROHM Co., Ltd. All rights reserved. 1/16 TSZ22111 14 001 29.Nov.2018 Rev.001 DYNAMIC OFFSET CANCELLATION SAMPLE & HOLD LATCH LATCH BU52271NUZ Contents General Description ................................................................................................................................................................ 1 Features ................................................................................................................................................................................. 1 Applications ............................................................................................................................................................................ 1 Key Specifications ................................................................................................................................................................... 1 Package ................................................................................................................................................................................. 1 Typical Application Circuit and Block Diagram .......................................................................................................................... 1 Pin Descriptions ...................................................................................................................................................................... 1 Pin Configurations ................................................................................................................................................................... 1 Absolute Maximum Ratings ..................................................................................................................................................... 3 Thermal Resistance ................................................................................................................................................................ 3 Recommended Operating Conditions ...................................................................................................................................... 4 Magnetic, Electrical Characteristics ......................................................................................................................................... 4 Measurement Circuit ............................................................................................................................................................... 5 Typical Performance Curves .................................................................................................................................................... 6 Figure 5. Operate Point, Release Point vs Ambient Temperature ........................................................................................... 6 Figure 6. Operate Point, Release Point vs Supply Voltage .................................................................................................... 6 Figure 7. Period vs Ambient Temperature ............................................................................................................................. 6 Figure 8. Period vs Supply Voltage ....................................................................................................................................... 6 Figure 9. Supply Current vs Ambient Temperature ................................................................................................................ 7 Figure 10. Supply Current vs Supply Voltage ........................................................................................................................ 7 Description of Operations ........................................................................................................................................................ 8 Intermittent Operation at Power ON ....................................................................................................................................... 11 Magnet Selection .................................................................................................................................................................. 11 Position of the Hall Element................................................................................................................................................... 11 Output Equivalence Circuit .................................................................................................................................................... 11 Operational Notes ................................................................................................................................................................. 12 Ordering Information ............................................................................................................................................................. 14 Marking Diagrams ................................................................................................................................................................. 14 Physical Dimension and Packing Information ......................................................................................................................... 15 Revision History .................................................................................................................................................................... 16 www.rohm.com TSZ02201-0M2M0F418070-1-2 2018 ROHM Co., Ltd. All rights reserved. 2/16 TSZ22111 15 001 29.Nov.2018 Rev.001