LM75BIM-5/NOPB National Semiconductor, LM75BIM-5/NOPB Datasheet

IC TEMP SENSOR DGTL 8-SOIC

LM75BIM-5/NOPB

Manufacturer Part Number
LM75BIM-5/NOPB
Description
IC TEMP SENSOR DGTL 8-SOIC
Manufacturer
National Semiconductor
Datasheet

Specifications of LM75BIM-5/NOPB

Package / Case
8-SOIC (3.9mm Width)
Mounting Type
Surface Mount
Voltage - Supply
3 V ~ 5.5 V
Operating Temperature
-55°C ~ 125°C
Output Type
I²C™
Function
Temp Sensor, Watchdog
Sensor Type
Internal
Topology
ADC (Sigma Delta), Comparator, Register Bank
Output Fan
Yes
Output Alarm
Yes
Sensing Temperature
-55°C ~ 125°C
Ic Output Type
Digital
Sensing Accuracy Range
± 3°C
Temperature Sensing Range
-55°C To +125°C
Supply Current
280µA
Supply Voltage Range
3V To 5.5V
Resolution (bits)
9bit
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
LM75BIM-5

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LM75BIM-5/NOPB
Manufacturer:
NS
Quantity:
1 700
Part Number:
LM75BIM-5/NOPB
Manufacturer:
NS/国半
Quantity:
20 000
© 2010 National Semiconductor Corporation
Digital Temperature Sensor and Thermal Watchdog with
Two-Wire Interface
General Description
The LM75B and LM75C are industy-standard digital temper-
ature sensors with an integrated Sigma-Delta analog-to-digi-
tal converter and I
digital temperature readings with an accuracy of ±2°C from
-25°C to 100°C and ±3°C over -55°C to 125°C.
Communication is accomplished over a 2-wire interface
which operates up to 400kHz. The LM75 has three address
pins, allowing up to eight LM75 devices to operate on the
same 2-wire bus. The LM75 has a dedicated over-tempera-
ture output (O.S.) with programmable limit and hystersis. This
output has programmable fault tolerance, which allows the
user to define the number of consecutive error conditions that
must occur before O.S. is activated.
The wide temperature and supply range and I
make the LM75 ideal for a number of applications including
base stations, electronic test equipment, office electronics,
personal computers, and any other system where thermal
management is critical to performance. The LM75B and
LM75C are available in an SOP-8 package or MSOP-8 pack-
age.
Simplified Block Diagram
I
2
C® is a registered trademark of Philips Corporation.
2
C
®
interface. The LM75 provides 9-bit
300998
2
C interface
LM75B
LM75C
■ 
■ 
■ 
Applications
Features
Key Specifications
Supply Voltage
Supply Current
Temperature Accuracy
General System Thermal Management
Communications Infrastructure
Electronic Test Equipment
Environmental Monitoring
No external components required
Shutdown mode to minimize power consumption
Up to eight LM75s can be connected to a single bus
Power up defaults permit stand-alone operation as
thermostat
UL Recognized Component (LM75B and LM75C)
LM75B, LM75C
operating
shutdown
−25°C to 100°C
−55°C to 125°C
November 2, 2010
www.national.com
30099801
3.0V to 5.5V
280 μA (typ)
±2°C (max)
±3°C (max)
4 μA (typ)

Related parts for LM75BIM-5/NOPB

LM75BIM-5/NOPB Summary of contents

Page 1

... The LM75B and LM75C are available in an SOP-8 package or MSOP-8 pack- age. Simplified Block Diagram 2 I C® registered trademark of Philips Corporation. © 2010 National Semiconductor Corporation LM75B LM75C Applications ■ General System Thermal Management ■ Communications Infrastructure ■ ...

Page 2

Connection Diagram Pin Descriptions Label Pin # Serial Bi-Directional Data Line. SDA 1 Open Drain Clock Input SCL 2 Overtemperature Shutdown. O.S. 3 Open Drain Output GND 4 Power Supply Ground +V 8 Positive ...

Page 3

... Ordering Information Package Order Number Marking 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 LM75CIMMX-5 T00C NS Package Supply Number ...

Page 4

... ESD Susceptibility (Note 4) Human Body Model Machine Model O.S. Output Sink Current O.S. Output Voltage Temperature-to-Digital Converter Characteristics Unless otherwise noted, these specifications apply for: +V LM75CIMM-5; and +V = +3.3 Vdc for LM75BIM-3, LM75BIMM-3, LM75CIM-3, and LM75CIMM-3 S for all other limits MIN MAX ...

Page 5

... Vdc for LM75BIM-5, LM75BIMM-5, LM75CIM-5, and LM75CIMM-5; S Conditions LM75B OH LM75C 400 Vdc for LM75BIM-5, LM75BIMM-5, LM75CIM-5, and LM75CIMM- MIN MAX Parameter LM75B (Note 13) LM75C 5 (Note 6). Boldface limits apply for T Typical Limits (Note 12) (Note 7) +V × 0 0.3 S − ...

Page 6

... JA in the table below: LM75BIM-3, LM75BIM-5, LM75CIM-3, LM75CIM-5 LM75BIMM-3, LM75BIMM-5, LM75CIMM-3, LM75CIMM-5 Note 6: All part numbers of the LM75 will operate properly over the +V at their nominal supply voltage. Accuracy will typically degrade 1°C/V of variation in +V Note 7: Limits are guaranteed to National's AOQL (Average Outgoing Quality Level). ...

Page 7

FIGURE 3. Printed Circuit Board Used for Thermal Resistance Specifications 30099806 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) 30099816 30099818 8 30099817 ...

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 15: 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 Bit ...

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13 www.national.com ...

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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 30099814 30099815 ...

Page 17

... Physical Dimensions inches (millimeters) unless otherwise noted 8-Lead (0.150 Wide) Molded Small Outline Package (SOP), JEDEC Order Number 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, LM75CIMM-5, LM75CIMMX-5, LM75BIMM-3, LM75BIMMX-3,LM75BIMM-5, or LM75BIMMX-5 ...

Page 18

... For more National Semiconductor product information and proven design tools, visit the following Web sites at: www.national.com 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 ...

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