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TMP112AIDRLT Scheda tecnica(PDF) 9 Page - Texas Instruments |
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TMP112AIDRLT Scheda tecnica(HTML) 9 Page - Texas Instruments |
9 / 32 page Diode Temp. Sensor DS A/D Converter OSC Control Logic Serial Interface Config. andTemp. Register TMP112 Temperature SCL 1 3 6 4 ALERT SDA GND 2 5 V+ ADD0 9 TMP112 www.ti.com SBOS473F – MARCH 2009 – REVISED FEBRUARY 2018 Product Folder Links: TMP112 Submit Documentation Feedback Copyright © 2009–2018, Texas Instruments Incorporated 7 Detailed Description 7.1 Overview The TMP112 family of devices are digital temperature sensors that are optimal for thermal-management and thermal-protection applications. The TMP112 family is two-wire, SMBus, and I2C interface-compatible. The device is specified over an operating temperature range of –40°C to 125°C. Figure 8 shows a block diagram of the TMP112 family. Figure 9 shows the ESD protection circuitry contained in the TMP112 family. The temperature sensor in the TMP112 family is the chip itself. Thermal paths run through the package leads as well as the plastic package. The package leads provide the primary thermal path because of the lower thermal resistance of the metal. An alternative version of the TMP112 family is available. The TMP102 device has reduced accuracy, the same micro-package, and is pin-to-pin compatible. Table 1. Advantages of TMP112 family Versus TMP102 DEVICE COMPATIBLE INTERFACES PACKAGE SUPPLY CURRENT SUPPLY VOLTAGE (MIN) SUPPLY VOLTAGE (MAX) RESOLUTION LOCAL SENSOR ACCURACY (MAX) SPECIFIED CALIBRATION DRIFT SLOPE TMP112 family I2C SMBus SOT563 1.2 × 1.6 × 0.6 10 µA 1.4 V 3.6 V 12 Bit 0.0625°C 0.5°C: (0°C to 65°C) 1°C: (-40°C to 125°C) Yes TMP102 I2C SMBus SOT563 1.2 × 1.6 × 0.6 10 µA 1.4 V 3.6 V 12 Bit 0.0625°C 2°C: (25°C to 85°C) 3°C: (-40°C to 125°C) No 7.2 Functional Block Diagrams Figure 8. Internal Block Diagram |
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