Datenblatt-Suchmaschine für elektronische Bauteile |
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MLX90615 Datenblatt(PDF) 9 Page - Melexis Microelectronic Systems |
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MLX90615 Datenblatt(HTML) 9 Page - Melexis Microelectronic Systems |
9 / 31 page MLX90615 Infra Red Thermometer 3901090615 Page 9 of 32 Data Sheet Rev 005 08 November 2013 0.5µV. As the device is factory calibrated any change of gain settings would require new calibration of object channel. 8.3.2 Power-On-Reset (POR) The Power On Reset (POR) is connected to the Vdd supply. The on-chip POR circuit provides an active level of the POR signal when the Vdd voltage rises above approximately 0.5V and holds the entire MLX90615 in reset until the Vdd is higher than the specified POR threshold VPOR. During the time POR is active, the POR signal is available as a weak open drain (active high) at the SDA pin. After the MLX90615 exits the POR state, the functions programmed in the EEPROM take control of that pin. 8.3.3 EEPROM A limited number of addresses in the EEPROM memory are of interest for the customer. The whole EEPROM can be read and written with the SMBus interface. The entire EEPROM content between addresses 0x04 and 0x0D must be kept unaltered or the factory calibration of the device will be lost. EEPROM (16X16) Name Address Write access PWM T min / SMBus slave address (SA) 0x00 Yes PWM T range 0x01 Yes Config 0x02 Yes Emissivity 0x03 Yes Melexis reserved (factory calibration) 0x04 Yes … … … Melexis reserved (factory calibration) 0x0D Yes ID number 0x0E No ID number 0x0F No Table 6 EERPOM table SMBus slave address : 7 LSBs (6...0) contains the SMBus slave address that the MLX90615 will respond to. Note that all MLX90615 will respond to SA=0x00 and therefore this value is useless in a network. Factory default SA is 0x5B, max 127 devices on one line SA=0x01 …0x7F PWM T min: 15 bit for the minimum temperature when PWM is used – right justified (factory default is 0x355B, which corresponds to +0.03°C) PWM T range: 15 bit range for the PWM signal temperature (TMAX – TMIN) – right justified (factory default is 0x09C4, which corresponds to a PWM range of 50.01°C). The Config register consist of control bits to configure the thermometer after POR: |
Ähnliche Teilenummer - MLX90615_13 |
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Ähnliche Beschreibung - MLX90615_13 |
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