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LM93 Datasheet(PDF) 89 Page - National Semiconductor (TI) |
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LM93 Datasheet(HTML) 89 Page - National Semiconductor (TI) |
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89 / 92 page  20068203 Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test conditions. Note 2: All voltages are measured with respect to GND, unless otherwise noted. Note 3: When the input voltage (VIN) at any pin exceeds the power supplies (VIN < (GND or AGND) or VIN > VDD, except for analog voltage inputs), the current at that pin should be limited to 10 mA. The 100 mA maximum package input current rating limits the number of pins that can safely exceed the power supplies with an input current of 10 mA to ten. Parasitic components and/or ESD protection circuitry are shown below for the LM93’s pins. Care should be taken not to forward bias the parasitic diode, D1, present on pins D+ and D−. Doing so by more than 50 mV may corrupt temperature measurements. An “U” in the table below indicates that the device is connected to the pin listed. D3 and the ESD Clamp are connected between V+ (VDD, AD_IN16) and GND. SNP stands for snap-back device. 20068204 Symbol Pin # D1 D2 D4 D5 D6 SNP R1 GPIO_0/TACH1 1 UU U 50 Ω GPIO_1/TACH2 2 UU U 50 Ω GPIO_2/TACH3 3 UU U 50 Ω GPIO_3/TACH4 4 UU U 50 Ω GPIO_4 / P1_THERMTRIP 5 UU U 50 Ω GPIO_5 / P2_THERMTRIP 6 UU U 50 Ω GPIO_6 7 UU U 50 Ω GPIO_7 8 UU U 50 Ω VRD1_HOT 9 UU VRD2_HOT 10 UU SCSI_TERM1 11 UU SCSI_TERM2 12 UU SMBDAT 13 UU SMBCLK 14 UU ALERT/XtestOut 15 UU RESET 16 UU AGND 17 Internally shorted to GND pin. V REF 18 UU REMOTE1– 19 UUUUU 50 Ω REMOTE1+ 20 UU UU 50 Ω REMOTE2– 21 UUUUU 50 Ω REMOTE+ 22 UU UU 50 Ω www.national.com 89 |
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