LM95071CIMF/NOPB National Semiconductor, LM95071CIMF/NOPB Datasheet

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LM95071CIMF/NOPB

Manufacturer Part Number
LM95071CIMF/NOPB
Description
IC TEMP SENSOR 13BIT SOT23-5
Manufacturer
National Semiconductor
Series
PowerWise®r
Datasheet

Specifications of LM95071CIMF/NOPB

Function
Temp Monitoring System (Sensor)
Topology
ADC (Sigma Delta), Comparator, Register Bank
Sensor Type
Internal
Sensing Temperature
-40°C ~ 150°C
Output Type
MICROWIRE™, SPI™
Output Alarm
No
Output Fan
No
Voltage - Supply
2.4 V ~ 5.5 V
Operating Temperature
-40°C ~ 150°C
Mounting Type
Surface Mount
Package / Case
SOT-23-5, SC-74A, SOT-25
For Use With
LM95071EVAL - BOARD EVALUATION LM95071
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
LM95071CIMF
LM95071CIMFTR

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LM95071CIMF/NOPB
Manufacturer:
TI/德州仪器
Quantity:
20 000
Company:
Part Number:
LM95071CIMF/NOPB
Quantity:
30 000
© 2005 National Semiconductor Corporation
LM95071
SPI/MICROWIRE 13-Bit Plus Sign Temperature Sensor
General Description
The LM95071 is a low-power, high-resolution digital tem-
perature sensor with an SPI and MICROWIRE compatible
interface, available in the 5-pin SOT23. The host can query
the LM95071 at any time to read temperature. Its low oper-
ating current is useful in systems where low power consump-
tion is critical.
The LM95071 has 13-bit plus sign temperature resolution
(0.03125˚C per LSB) while operating over a temperature
range of −40˚C to +150˚C.
The LM95071’s 2.4V to 5.5V supply voltage range, fast
conversion rate, low supply current, and simple SPI interface
make it ideal for a wide range of applications.
Applications
n System Thermal Management
n Portable Electronic Devices
n Personal Computers
n Disk Drives
n Office Electronics
n Electronic Test Equipment
Simplified Block Diagram
TRI-STATE
®
is a registered trademark of National Semiconductor Corporation.
DS201065
Features
n Small SOT23-5 package saves space
n Shutdown mode conserves power between temperature
n Operates over a full −40˚C to +150˚C range
n SPI and MICROWIRE Bus interface
Key Specifications
j
j
j
j
readings
Supply Voltage
Supply Current
Temperature
Temperature
Accuracy
Resolution
−40˚C to 150˚C
20106501
0˚C to 70˚C
shutdown
operating
February 2005
www.national.com
2.4V to 5.5V
280 µA (typ)
±
±
0.03125 ˚C
6 µA (typ)
1˚C (max)
2˚C (max)

Related parts for LM95071CIMF/NOPB

LM95071CIMF/NOPB Summary of contents

Page 1

... Disk Drives n Office Electronics n Electronic Test Equipment Simplified Block Diagram TRI-STATE ® registered trademark of National Semiconductor Corporation. © 2005 National Semiconductor Corporation Features n Small SOT23-5 package saves space n Shutdown mode conserves power between temperature readings n Operates over a full −40˚C to +150˚C range ...

Page 2

Connection Diagram Ordering Information Order Number Top Mark LM95071CIMFX T18C Pin Descriptions Pin Symbol Name Number 1 CS Chip Select input 2 GND Ground 3 SI/O Serial Input/Output 4 SC Serial bus clock 5 V Positive Supply Voltage DD Typical ...

Page 3

Absolute Maximum Ratings Supply Voltage Voltage at any Pin Input Current at any Pin (Note 2) Storage Temperature ESD Susceptibility (Note 4) Human Body Model Machine Model Soldering process must comply with National Semiconductor’s Reflow Temperature Profile specifications. Refer to ...

Page 4

Logic Electrical Characteristics SERIAL BUS DIGITAL SWITCHING CHARACTERISTICS Unless otherwise noted, these specifications apply for V to 5.5V (Note 6); C (load capacitance) on output lines = 100 pF unless otherwise specified. Boldface limits apply for ...

Page 5

Logic Electrical Characteristics Notes Note 1: 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 2: When the ...

Page 6

Electrical Characteristics FIGURE 5. Temperature-to-Digital Transfer Function (Non-linear scale for clarity) TRI-STATE Test Circuit www.national.com 20106508 20106507 FIGURE 6. 6 ...

Page 7

Typical Performance Characteristics Static Supply Current vs. Temperature Conversion Time vs Temperature MaximumTemperature Error 20106525 Typical Output Noise at 30˚C 20106527 7 20106526 20106529 www.national.com ...

Page 8

... FF hex for shutdown www.national.com Another code may place the part into a test mode. Test modes are used by National Semiconductor to thoroughly test the function of the LM95071 during production testing. Only eight bits have been defined above since only the last eight transmitted are detected by the LM95071, before CS is taken HIGH ...

Page 9

... Note: setting D0-D15 to any other values may place the LM95071 into a manufacturer’s test mode, upon which the LM95071 will stop responding as described. These test modes are to be used for National Semiconductor production testing only. See Section 1.2, Serial Bus Interface, for a complete discussion. ...

Page 10

Serial Bus Timing Diagrams a) Reading Continuous Conversion - Single Eight-Bit Frame b) Reading Continuous Conversion - Two Eight-Bit Frames www.national.com 20106514 c) Writing Shutdown Mode d) Writing Conversion Mode FIGURE 7. Timing Diagrams 10 20106515 20106518 20106522 ...

Page 11

Application Hints 3.1 THERMAL PATH CONSIDERATIONS To get the expected results when measuring temperature with an integrated circuit temperature sensor like the LM95071 important to understand that the sensor mea- sures its own die temperature. For the ...

Page 12

Physical Dimensions www.national.com inches (millimeters) unless otherwise noted LM95071Top View SOT23-5 Package NS Package Number MF05A 12 ...

Page 13

... BANNED SUBSTANCE COMPLIANCE National Semiconductor certifies that the products and packing materials meet the provisions of the Customer Products Stewardship Specification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification (CSP-9-111S2) and contain no ‘‘Banned Substances’’ as defined in CSP-9-111S2. ...

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