Datasheet Digital Temperature Sensor IC BH1900NUX General Description Key Specifications The BH1900NUX is a digital temperature sensor IC Supply Voltage Range: 2.7V to 3.6V equipped with a two-wire serial interface. Its small Temperature Accuracy(-20C to +85C): 3.0C package, so it can be placed near the component which Operating Current: 75A (Typ) temperature is measured. Shutdown Current: 1A (Typ) This device has 3 address pins and it allows to connect Operating Temperature Range: -30C to +95C 8 devices on one bus. Features Package W(Typ) x D(Typ) x H(Max) Digital Output: Two-wire Serial Interface. VSON008X2030 2.00mm x 3.00mm x 0.60mm 8 Addresses. Thermostat Mode. Small package. Applications Smart phone, Tablet, LCD TV, notebook PC, portable game machine, and digital camera. VSON008X2030 Typical Application Circuit VDD SDA A0 SCL A1 BH1900NUX Host ALERT A2 GND When address pins are A2=L, A1=L, A0=H. Product structure : Silicon monolithic integrated circuit This product has no designed protection against radioactive rays . www.rohm.com TSZ02201-0M2M0F516010-1-2 2016 ROHM Co., Ltd. All rights reserved. 1/18 TSZ22111 14 001 26.Apr.2016 Rev.001 BH1900NUX Contents General Description ...................................................................................................................................................................... 1 Features ......................................................................................................................................................................................... 1 Applications .................................................................................................................................................................................. 1 Key Specifications ........................................................................................................................................................................ 1 Package ......................................................................................................................................................................................... 1 Typical Application Circuit ........................................................................................................................................................... 1 Pin Configuration .......................................................................................................................................................................... 3 Pin Description ............................................................................................................................................................................. 3 Block Diagram ............................................................................................................................................................................... 3 Absolute Maximum Ratings ......................................................................................................................................................... 4 Thermal Resistance ...................................................................................................................................................................... 4 Recommended Operating Conditions ........................................................................................................................................ 5 Electrical Characteristics ............................................................................................................................................................. 5 Typical Performance Curves ........................................................................................................................................................ 6 Figure 1. Operating Current vs Ambient Temperature ........................................................................................................... 6 Figure 2. Shutdown Current vs Ambient Temperature ........................................................................................................... 6 Figure 3. Temperature Error vs Ambient Temperature ........................................................................................................... 6 Two-wire Serial Interface Timing Characteristics ...................................................................................................................... 7 Two-wire Serial Communication .................................................................................................................................................. 8 Register Map ................................................................................................................................................................................. 9 Application Example .................................................................................................................................................................. 12 I/O equivalence circuit ................................................................................................................................................................ 13 Operational Notes ....................................................................................................................................................................... 14 Ordering Information .................................................................................................................................................................. 16 Marking Diagrams ....................................................................................................................................................................... 16 Physical Dimension, Tape and Reel Information ..................................................................................................................... 17 Revision History ......................................................................................................................................................................... 18 www.rohm.com TSZ02201-0M2M0F516010-1-2 2016 ROHM Co., Ltd. All rights reserved. 2/18 TSZ22111 15 001 26.Apr.2016 Rev.001