lm73cimkx-1 National Semiconductor Corporation, lm73cimkx-1 Datasheet
lm73cimkx-1
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lm73cimkx-1 Summary of contents
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... Applications n Portable Electronics n Notebook Computers n Automotive n System Thermal Management n Office Electronics Typical Application registered trademark of Philips Electronics N.V. Corporation © 2006 National Semiconductor Corporation Key Specifications j Supply Voltage j Supply Current 2 C ® inter- ± ...
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Simplified Block Diagram Connection Diagram www.national.com SOT23-6 20147802 TOP VIEW 2 20147801 ...
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... Ordering Information Package Part Number Marking LM73CIMK-0 T730 LM73CIMKX-0 T730 LM73CIMK-1 T731 LM73CIMKX-1 T731 Note 1: Available in RoHS-compliant packages. More details at www.national.com. Pin Descriptions Label Pin # Type ADDR 1 Logic Input, three levels GND 2 Ground V 3 Power DD SMBCLK 4 CMOS Logic Input ALERT 5 Open-Drain ...
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Absolute Maximum Ratings Supply Voltage Voltage at Any Pin −0 Input Current at Any Pin (Note 3) Storage Temperature ESD Susceptibility (Note 5) Human Body Model Machine Model Soldering process must comply with National Semiconductor’s Reflow Temperature ...
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Logic Electrical Characteristics DIGITAL DC CHARACTERISTICS Unless otherwise noted, these specifications apply for V all other limits +25˚C, unless otherwise noted Symbol Parameter SMBDAT, SMBCLK INPUTS V Logical “1” Input Voltage IH V ...
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Note 2: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. DC and AC electrical specifications do not apply when operating the device beyond its rated operating conditions. Note 3: When the input voltage (V ) ...
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Typical Performance Characteristics Accuracy vs. Temperature Shutdown Current vs.Temperature Operating Current vs. Temperature 20147820 Typical Output Noise 20147822 7 20147821 20147823 www.national.com ...
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Functional Description The LM73 is a digital temperature sensor that senses the temperature of its die using a sigma-delta analog-to-digital converter and stores the temperature in the Temperature Register. The LM73’s 2-wire serial interface is compatible 2 with SMBus ...
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Functional Description 13-bit (12-bit plus sign) Temperature Digital Output Binary +150˚C 0100 1011 0000 0000 +25˚C 0000 1100 1000 0000 +1˚C 0000 0000 1000 0000 +0.0625˚C 0000 0000 0000 1000 0˚C 0000 0000 0000 0000 −0.0625˚C 1111 1111 1111 ...
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Functional Description FIGURE 1. ALERT Temperature Response cleared when temperature crosses T FIGURE 2. ALERT Temperature Response cleared by writing a "1" to the ALERT Reset Bit. www.national.com (Continued) 1.6 COMMUNICATING with the LM73 The data registers in the ...
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Functional Description (a) Typical Read from a 2-Byte Register with Preset Pointer (b) Typical Pointer Set Followed by Immediate Read of a 2-Byte Register (c) Typical Read from a 1-Byte Register with Preset Pointer (d) Typical Pointer Set Followed ...
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Functional Description www.national.com (Continued) (a) Typical 1-Byte Write (b) Typical 2-Byte Write FIGURE 4. Writing to the LM73 12 20147814 20147815 ...
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LM73 Registers The LM73’s internal registers are selected by the Pointer register. The Pointer register latches the last location that it was set to. The pointer register and all internal registers are described below. All registers reset at device ...
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LM73 Registers (Continued) 2.2 TEMPERATURE DATA REGISTER Pointer Address 00h (Read Only) Reset State: 7FFCh (+255.96875˚C) One-Shot State: 8000h (-256˚C) D15 D14 SIGN 128˚ 1˚C 0.5˚C Bits Name Description 15:2 Temperature Data Represents the temperature that was ...
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LM73 Registers (Continued) 2.5 T LOWER-LIMIT REGISTER LOW Pointer Address 03h (R/W) Reset State: 8000h (–256˚C) D15 D14 D13 SIGN 128˚C 64˚ 1˚C 0.5˚C 0.25˚C Bits Name Description 15:5 Lower-Limit If the measured temperature that is ...
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LM73 Registers (Continued) 2.7 IDENTIFICATION REGISTER Pointer Address 07h (Read Only) Reset State: 0190h D15 D14 Bits Name Description 15:8 Manufacturer Always returns 01h to uniquely identify the manufacturer as National Semiconductor Identification ...
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Application Hints 3.1 THERMAL PATH CONSIDERATIONS To get the expected results when measuring temperature with an integrated circuit temperature sensor like the LM73 important to understand that the sensor measures its own die temperature. For the LM73, ...
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... Deutsch Tel: +49 (0) 69 9508 6208 English www.national.com Français Tel: +33 ( 8790 6-Lead Thin-SOT23, Order Number LM73CIMK or LM73CIMKX NS Package Number MK06A 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system affect its safety or effectiveness ...