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TMP422 Arkusz danych(PDF) 7 Page - Burr-Brown (TI) |
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TMP422 Arkusz danych(HTML) 7 Page - Burr-Brown (TI) |
7 / 26 page www.ti.com APPLICATION INFORMATION 0.1 F m 10kW (typ) 10kW (typ) TMP421 DXP DXN V+ 8 7 6 5 2 1 R S (2) R S (2) C DIFF (3) C DIFF (3) R S (2) R S (2) GND SCL SDA +5V SMBus Controller Diode-connectedconfiguration : (1) SeriesResistance Transistor-connectedconfiguration: (1) (1)Diode-connectedconfigurationprovidesbettersettlingtime. Transistor-connectedconfigurationprovidesbetterseriesresistancecancellation. (2)R shouldbe<1.5kW inmostapplications. S (3)C shouldbe<1000pFinmostapplications. DIFF NOTES: A1 A0 4 3 TMP422 DX1 (4) DX2 (4) 5 2 1 R S (2) R S (2) C DIFF (3) C DIFF (3) R S (2) R S (2) GND Diode-connectedconfiguration : (1) SeriesResistance Transistor-connectedconfiguration: (1) (1)Diode-connectedconfigurationprovidesbettersettlingtime. Transistor-connectedconfigurationprovidesbetterseriesresistancecancellation. (2)R shouldbe<1.5kW inmostapplications. (3)C shouldbe<1000pFinmostapplications. (4)TMP422SMBusslaveaddressis whenconnectedasshown. 1001100 S DIFF NOTES: DX3 (4) DX4 (4) 4 3 R S (2) R S (2) C DIFF (3) 0.1 F m 10kW (typ) 10kW (typ) V+ 8 7 6 SCL SDA +5V SMBus Controller DXP1 DXN1 DXP2 DXN2 TMP421 TMP422 SBOS398A – JULY 2007 – REVISED SEPTEMBER 2007 For proper remote temperature sensing operation, the The TMP421 (two-channel) and TMP422 TMP421 requires only a transistor connected (three-channel) are digital temperature sensors that between DXP and DXN; the TMP422 requires combine a local die temperature measurement transistors connected between DX1 and DX2 and channel and one or two remote junction temperature between DX3 and DX4. . The SCL and SDA interface measurement channels in a single SOT23-8 package. pins require pull-up resistors as part of the The TMP421/22 are Two-Wire- and SMBus communication bus. A 0.1 μF power-supply bypass interface-compatible and are specified over a capacitor is recommended for good local bypassing. temperature range of –40 °C to +125°C. The Figure 11 shows a typical configuration for the TMP421/22 contain multiple registers for holding TMP421, and Figure 12 for the TMP422. configuration information and temperature measurement results. Figure 11. TMP421 Basic Connections Figure 12. TMP422 Basic Connections Copyright © 2007, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Link(s): TMP421 TMP422 |
Podobny numer części - TMP422 |
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Podobny opis - TMP422 |
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