LM95235EVAL/NOPB National Semiconductor, LM95235EVAL/NOPB Datasheet
LM95235EVAL/NOPB
Specifications of LM95235EVAL/NOPB
Related parts for LM95235EVAL/NOPB
LM95235EVAL/NOPB Summary of contents
Page 1
... LM95235 Evaluation Board User’s Guide © Copyright 2006 National Semiconductor Corporation 1 Revision A April 14, 2006 www.national.com ...
Page 2
... Introduction 2.0 Quick Start 3.0 Functional Description 4.0 Software Installation and Operation 5.0 Electrical and Mechanical Specifications 5.1 Electrical Specifications 5.2 Electrical Schematic 5.3 Evaluation Board Layout 5.4 Bill of Materials 5.5 Mechanical Specifications © Copyright 2006 National Semiconductor Corporation Table of Contents ...
Page 3
... SensorEval Version 1.1.0a or later, Evaluation Board CD containing: a. The SensorEval.exe executable program used to run the LM95235 Evaluation Board softcopy of this User’s Guide c. A readme.txt file with useful information about the program softcopy of the SensorEval Software manual. © Copyright 2006 National Semiconductor Corporation References 3 www.national.com ...
Page 4
... VDC +3.3 VDC Voltage Regulator Circuit © Copyright 2006 National Semiconductor Corporation The block diagram below describes the LM95235 SensorEval Evaluation Board itself. The USB input provides the +5.0 VDC power to the board, which is regulated down to 3.3 VDC to power the IC’s. The EEPROM is programmed at the factory with a unique ID code for this particular board ...
Page 5
... Select LM95235 and click on Open button. 4. The next screen (first screen after the first run of the program) will look like this: © Copyright 2006 National Semiconductor Corporation Select the LM95235 Evaluation Board. Click OK. 5. The next screen will look like this: Make sure that “ ...
Page 6
... The user can experiment with the Mask settings. Also the user can change the conversion rate. The next screen shows the possibilities for the Conversion Rate. © Copyright 2006 National Semiconductor Corporation . The user can also select the 3904 diode or the processor thermal diode called “ ...
Page 7
... An example is shown below 9. If the user selects the Start Log button the following screen will appear. The user then enters the filename that he chooses to log the data into. © Copyright 2006 National Semiconductor Corporation 7 www.national.com ...
Page 8
... Quick Start Diagram Important! NO EXTERNAL POWER SUPPLY OR SIGNAL INPUTS ARE REQUIRED! USB Cable to Computer Computer with SensorEval software loaded © Copyright 2006 National Semiconductor Corporation National Semiconductor LM95235 Evaluation Board Rev N/C TCRIT# N/C OS/A0 SCL SDA LM95235 +3.3 JP2 ...
Page 9
... Do not apply any external power or signals to any of the pins on these headers! © Copyright 2006 National Semiconductor Corporation Power to the LM95235 Evaluation Board is taken from the USB 5-Volt line. This +5 VDC is the input to the on-board LM2950 low dropout voltage regulator, which regulates the output voltage to +3.3 VDC ...
Page 10
... The installation process will put an icon on the PC desktop so that the SensorEval program will run when the icon is double-clicked. © Copyright 2006 National Semiconductor Corporation 4.2 Operation Follow the following procedure for operation the LM95235 Evaluation Board using the SensorEval software: 1. Run the SensorEval program by either double- ...
Page 11
... SCL 2 A2 SCL SCL SDA Vss SDA SDA © Copyright 2006 National Semiconductor Corporation +5.0 ± 0.1 V, 100 mA max. + 3.3 VDC Use a 0.1 uF capacitor for each Vcc pin of U2 and Reserved_6 pin 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF Y1 12 MHz ...
Page 12
... Evaluation Board Layout Figure 5.3 Layout diagram of the LM95235 Evaluation Board © Copyright 2006 National Semiconductor Corporation (Note: socket and socket area not stuffed.) 12 www.national.com ...
Page 13
... © Copyright 2006 National Semiconductor Corporation Part Capacitor, SMD, ceramic, 0.1uF Capacitor, SMD, ceramic Capacitor, SMD, ceramic, 2.2 uF Capacitor, SMD, ceramic, 100 pF Connector, USB-B HEADER 2x2 Filter, 1uH, Stewart MI1206K900R-00 Transistor, SMD, MMBT3904/SOT Resistor, SMD, 0 Ohms Resistor, SMD, 1M Resistor, SMD, 22 Ohms Resistor, SMD, 1 ...
Page 14
... Operating Mechanical and Environmental Specifications Minimum Temperature 5.4.2 Evaluation Board Basic Dimensions 5.4.3 Electrostatic Discharge (ESD) Precautions The user shall use ESD precautions as specified in National Semiconductor ESD control document (SC)CSI-3-038 available through www.national.com © Copyright 2006 National Semiconductor Corporation Typical 0°C 25° ...
Page 15
... BANNED SUBSTANCE COMPLIANCE National Semiconductor certifies that the products and packing materials meet the provisions of the Customer Products Stewardship Specification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification (CSP-9- 111S2) and contain no ‘‘Banned Substances’’ as defined in CSP-9-111S2. ...