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công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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TMP103 bảng dữ liệu(PDF) 6 Page - Texas Instruments |
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TMP103 bảng dữ liệu(HTML) 6 Page - Texas Instruments |
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6 / 24 page  I/O Control Interface SCL SDA Temperature Register Configuration Register T LOW Register T HIGH Register Pointer Register TMP103 0.01mF V+ GND 2 5 1 SCL 6 SDA To Two-Wire Controller TMP103 SBOS545A – FEBRUARY 2011 – REVISED MARCH 2011 www.ti.com APPLICATION INFORMATION GENERAL DESCRIPTION To maintain accuracy in applications that require air or surface temperature measurement, care should be The TMP103 is a digital output temperature sensor in taken to isolate the package from ambient air a wafer chip-scale package (WCSP) that is optimal temperature. for thermal management and thermal profiling. The TMP103 includes a two-wire interface that is POINTER REGISTER compatible with both I2C and SMBus interfaces. In addition, the TMP103 has the capability of executing Figure 7 shows the internal register structure of the multiple device access (MDA) commands that allow TMP103. The 8-bit Pointer Register of the device is multiple TMP103s to respond to a single global bus used to address a given data register. The Pointer command. MDA commands reduce communication Register uses the two LSBs to identify which of the time and power in a bus that contains multiple data registers should respond to a read or write TMP103 devices. The TMP103 is specified over a command. Table 1 identifies the bits of the Pointer temperature range of –40ºC to +125 ºC. Register byte. During a write command, P2 through P7 must always be '0'. Table 2 describes the pointer The TMP103 serial interface is designed to support address of the registers available in the TMP103. up to eight TMP103 devices on a single bus. The Power-up reset value of P1/P0 is '00'. By default, the TMP103 is offered with eight internal interface TMP103 reads the temperature on power-up. addresses. Each unique address option can be used as a location or temperature zone designator. The TMP103 responds to standard I2C/SMBus slave protocols that allow the internal registers to be written to or read from on an individual basis. The TMP103 also responds to MDA commands that allow all the devices on the bus to be written to or read from, without having to send the individual address and commands to each device. Pull-up resistors are required on SCL and SDA. A 0.01 μF bypass capacitor is also recommended, as shown in Figure 6. Figure 7. Internal Register Structure Table 1. Pointer Register Byte P7 P6 P5 P4 P3 P2 P1 P0 0 0 0 0 0 0 Register Bits Table 2. Pointer Addresses NOTE: SCL and SDA pins require pull-up resistors. P1 P0 REGISTER Figure 6. Typical Connections 0 0 Temperature Register (Read Only) 0 1 Configuration Register (Read/Write) The temperature sensor in the TMP103 is the chip itself. Thermal paths run through the package bumps 1 0 TLOW Register (Read/Write) as well as the package. The lower thermal resistance 1 1 THIGH Register (Read/Write) of metal causes the bumps to provide the primary thermal path. 6 Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated Product Folder Link(s): TMP103 |
Số phần tương tự - TMP103_15 |
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Mô tả tương tự - TMP103_15 |
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