LM75AIMX/NOPB National Semiconductor, LM75AIMX/NOPB Datasheet
LM75AIMX/NOPB
Specifications of LM75AIMX/NOPB
Available stocks
Related parts for LM75AIMX/NOPB
LM75AIMX/NOPB Summary of contents
Page 1
... The LM75A, LM75B and LM75C are available in an SOP-8 pacakage. The LM75B and LM75C are available in an MSOP-8 package. Simplified Block Diagram 2 I C® registered trademark of Philips Corporation. © 2009 National Semiconductor Corporation Applications ■ General System Thermal Management ■ Communications Infrastructure 2 C ® ...
Page 2
Connection Diagram Pin Descriptions Label Pin # SDA Serial Bi-Directional Data Line. Open Drain. SCL Clock Input O.S. 3 Overtemperature Shutdown. Open Drain Output GND 4 Power Supply Ground +V 8 Positive ...
Page 3
Ordering Information Package Order Number Marking LM75AIM LM75AIM LM75AIMX LM75AIM LM75BIM-3 LM75BIM-3 LM75BIMX-3 LM75BIM-3 LM75BIMM-3 T01B LM75BIMMX-3 T01B LM75BIM-5 LM75BIM-5 LM75BIMX-5 LM75BIM-5 LM75BIMM-5 T00B LM75BIMMX-5 T00B LM75CIM-3 LM75CIM-3 LM75CIMX-3 LM75CIM-3 LM75CIMM-3 T01C LM75CIMMX-3 T01C LM75CIM-5 LM75CIM-5 LM75CIMX-5 LM75CIM-5 LM75CIMM-5 T00C ...
Page 4
Absolute Maximum Ratings Supply Voltage Pin (+ Voltage at A0, A1and A2 Pins Voltage at OS, SCL and SDA Pins Input Current at any Pin (Note 2) Package Input Current (Note 2) Storage Temperature ESD Susceptibility (Note 4) ...
Page 5
Logic Electrical Characteristics DIGITAL DC CHARACTERISTICS Unless otherwise noted, these specifications apply for +V LM75BIMM-5, LM75CIM-5, and LM75CIMM-5; and +V (Note 6). Boldface limits apply for T Symbol Parameter V Logical “1” Input Voltage IN(1) V Logical “0” Input Voltage ...
Page 6
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 input voltage (V ) ...
Page 7
FIGURE 2. Temperature-to-Digital Transfer Function (Non-linear scale for clarity) FIGURE 3. Printed Circuit Board Used for Thermal Resistance Specifications 1265805 1265806 7 www.national.com ...
Page 8
Typical Performance Characteristics Static Quiescent Current vs Temperature (LM75C) Accuracy vs Temperature (LM75C) www.national.com Dynamic Quiescent Current vs Temperature (LM75C) 1265816 1265818 8 1265817 ...
Page 9
Functional Description The LM75 temperature sensor incorporates a band-gap type temperature sensor and 9-bit ADC (Sigma-Delta Analog-to- Digital Converter). The temperature data output of the LM75 is available at all times via the bus ...
Page 10
Note 14: These interrupt mode resets of O.S. occur only when LM75 is read or placed in shutdown. Otherwise, O.S. would remain active indefinitely for any event. FIGURE 4. O.S. Output Temperature Response Diagram 1.4 TEMPERATURE DATA FORMAT Temperature data ...
Page 11
O.S. POLARITY The O.S. output can be programmed via the configuration register to be either active low (default mode), or active high. In active low mode the O.S. output goes low when triggered 1.10 INTERNAL REGISTER STRUCTURE There are ...
Page 12
POINTER REGISTER (Selects which registers will be read from or written to P0-P1: Register Select P3–P7: Must be kept zero. 1.12 TEMPERATURE REGISTER (Read Only): D15 D14 D13 D12 D11 MSB ...
Page 13
13 www.national.com ...
Page 14
www.national.com 14 ...
Page 15
Application Hints To get the expected results when measuring temperature with an integrated circuit temperature sensor like the LM75 important to understand that the sensor measures its own die temperature. For the LM75, the best thermal path ...
Page 16
FIGURE 10. Temperature Sensor with Loudmouth Alarm (Barking Watchdog) www.national.com FIGURE 9. Simple Thermostat, Interface Optional 16 1265814 1265815 ...
Page 17
Physical Dimensions inches (millimeters) unless otherwise noted 8-Lead (0.150 Wide) Molded Small Outline Package (SOP), JEDEC Order Number LM75AIM, LM75AIMX, LM75CIM-3, LM75CIMX-3, LM75CIM-5, LM75CIMX-5, LM75BIM-3, LM75BIMX-3, LM75BIM-5, or LM75BIMX-5 8-Lead Molded Mini Small Outline Package (MSOP) Order Number LM75CIMM-3, LM75CIMMX-3, ...
Page 18
... For more National Semiconductor product information and proven design tools, visit the following Web sites at: Products Amplifiers www.national.com/amplifiers Audio www.national.com/audio Clock and Timing www.national.com/timing Data Converters www.national.com/adc Interface www.national.com/interface LVDS www.national.com/lvds Power Management www.national.com/power Switching Regulators www.national.com/switchers LDOs www.national.com/ldo LED Lighting www ...