MLX90615
MLX90615
MLX90615
- No tags were found...
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
<strong>MLX90615</strong>Infra Red Thermometer11 Applications Information11.1 Use of the <strong>MLX90615</strong> thermometer in SMBus configuration+3.3VR1R2U2MCUVdd21 <strong>MLX90615</strong>SDA U1/PWMVss4SMBusVddSDASCLC10.1uFSCL3GNDFigure 18: Connection of <strong>MLX90615</strong> to SMBus.<strong>MLX90615</strong> has diode clamps SDA/SCL to Vdd so it is necessary to provide <strong>MLX90615</strong> with power in ordernot to load the SMBus lines.11.2 Use of multiple <strong>MLX90615</strong>s in SMBus configuration+3.3VI1I2R1R2U1MCUVdd2C10.1uF1 <strong>MLX90615</strong>SDA U2/PW MSCL3Vss4Ipu1Ipu2Current source or resistorpull-ups of the busSMBusVddSDASCLGNDVdd2C20.1uF1 <strong>MLX90615</strong>SDA U3/PW MSCL3Vss4SDAC3Cbus1Cbus2C4Figure 19: Use of multiple <strong>MLX90615</strong> devices in SMBus networkThe <strong>MLX90615</strong> supports a 7-bit slave address in EEPROM, thus allowing up to 127 devices to be read viatwo common wires. Current source pull-ups may be preferred with higher capacitive loading on the bus (C3and C4 represent the lines’ parasitics), while simple resistive pull-ups provide the obvious low costadvantage.SCL3901090615 Page 22 of 30 Data SheetRev 00128/Aug/2008
Change language