LM73CIMK-0/NOPB National Semiconductor, LM73CIMK-0/NOPB Datasheet
LM73CIMK-0/NOPB
Specifications of LM73CIMK-0/NOPB
LM73CIMK-0TR
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LM73CIMK-0/NOPB Summary of contents
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... Notebook Computers ■ Automotive ■ System Thermal Management ■ Office Electronics Typical Application registered trademark of Philips Electronics N.V. Corporation © 2009 National Semiconductor Corporation LM73 Key Specifications ■ Supply Voltage ■ 2 C® inter- Supply Current ■ Temperature ...
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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 CMOS Logic Input (three levels) GND 2 Ground V 3 Power DD SMBCLK 4 CMOS Logic Input ALERT ...
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Absolute Maximum Ratings Supply Voltage Voltage at SMBCLK and SMBDAT pins Voltage at All Other Pins (V Input Current at Any Pin (Note 3) Storage Temperature ESD Susceptibility (Note 5) Human Body Model Machine Model Soldering process must comply with ...
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Logic Electrical Characteristics DIGITAL DC CHARACTERISTICS Unless otherwise noted, these specifications apply for V other limits +25°C, unless otherwise noted Symbol Parameter SMBDAT, SMBCLK INPUTS V Logical “1” Input Voltage IH V Logical ...
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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 with SMBus 2.0 ...
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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 1000 −1°C 1111 ...
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FIGURE 2. ALERT Temperature Response cleared by writing a "1" to the ALERT Reset Bit. 1.6 COMMUNICATING WITH THE LM73 The data registers in the LM73 are selected by the Pointer Register. At power-up the Pointer Register is set to ...
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Typical Pointer Set Followed by Immediate Read of a 1-Byte Register. 1.7 SHUTDOWN MODE Shutdown Mode is enabled by writing a “1” to the Full Power Down Bit, Bit 7 of the Configuration Register, and holding it high for ...
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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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TEMPERATURE DATA REGISTER Pointer Address 00h (Read Only) Reset State: 7FFCh (+255.96875°C) One-Shot State: 8000h (-256°C) D15 D14 D13 SIGN 128°C 64° 1°C 0.5°C 0.25°C Bits Name Description 15:2 Temperature Data Represents the temperature that was ...
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T UPPER-LIMIT REGISTER HIGH Pointer Address 02h (R/W) Reset State: 7FE0h (+255.75°C) D15 D14 SIGN 128° 1°C 0.5°C Bits Name Description 15:5 Upper-Limit If the measured temperature that is stored in this register exceeds this user-programmable upper ...
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... Bits Name Description 15:8 Manufacturer Always returns 01h to uniquely identify the manufacturer as National Semiconductor Corporation. Identification Byte 7:4 Product Identification Always returns 9h to uniquely identify this part as the LM73 Temperature Sensor. Nibble 3:0 Die Revision Step Always returns 0h to uniquely identify the revision as level zero. ...
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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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... Physical Dimensions inches (millimeters) unless otherwise noted 6-Lead Thin-SOT23, Order Number LM73CIMK or LM73CIMKX NS Package Number MK06A 17 www.national.com ...
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