General Description
The LM75 temperature sensor includes a delta-sigma
analog-to-digital converter, and a digital overtempera-
ture detector. The host can query the LM75 through its
I
2
C interface to read temperature at any time. The
open-drain overtemperature output (OS) sinks current
when the programmable temperature limit is exceeded.
The OS output operates in either of two modes, com-
parator or interrupt. The host controls the temperature
at which the alarm is asserted (T
OS
) and the hysteresis
temperature below which the alarm condition is not
valid (T
HYST
). Also, the LM75s T
OS
and T
HYST
regis-
ters can be read by the host. The address of the LM75
is set with three pins to allow multiple devices to work
on the same bus. Power-up is in comparator mode, with
defaults of T
OS
= +80癈 and T
HYST
= +75癈. The 3.0V
to 5.5V supply voltage range, low supply current, and
I
2
C interface make the LM75 ideal for many applica-
tions in thermal management and protection.
Applications
Thermal System Management
Thermal Protection
Test Equipment
Computers and Office Electronics
Features
f SO (SOP) and ?/SPAN>MAX
?/DIV>
(礢OP) Packages
f I
2
C Bus Interface
f Separate Open-Drain OS Output Operates as
Interrupt or Comparator/Thermostat Input
f Register Readback Capability
f Power-Up Defaults Permit Stand-Alone Operation
as a Thermostat
f 3.0V to 5.5V Supply Voltage
f Low Operating Supply Current 250?/SPAN>A (typ), 1mA
(max)
f 4?/SPAN>A (typ) Shutdown Mode Minimizes Power
Consumption
f Up to Eight LM75s Can Be Connected to a Single
Bus
f Pin- and/or Register-Compatible with Improved-
Performance Maxim Sensors Including MAX7500,
MAX6625, MAX6626, DS75LV, and DS7505
Digital Temperature Sensor and Thermal
Watchdog with 2-Wire Interface
________________________________________________________________ Maxim Integrated Products 1
Functional Diagram
Ordering Information/Selector Guide
19-4385; Rev 0; 3/09
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxims website at www.maxim-ic.com.
礛AX is a registered trademark of Maxim Integrated Products, Inc.
Note: Devices are specified over the -55?/SPAN>C to +125?/SPAN>C temperature range and include I
2
C noise filter.
+Denotes a lead(Pb)-free/RoHS-compliant package.
T&R = Tape and reel.
PART
PIN-PACKAGE
PKG
SUPPLY VOLTAGE (V)
TOP MARK
LM75BIM-3+
8 SO (SOP)
Bulk
3.3
LM75BIM-3
LM75BIMX-3+
8 SO (SOP)
T&R
3.3
LM75BIM-3
LM75BIMM-3+
8 礛AX (礢OP)
Bulk
3.3
T01B
LM75BIMMX-3+
8 礛AX (礢OP)
T&R
3.3
T01B
LM75BIM-5+
8 SO (SOP)
Bulk
5.0
LM75BIM-5
LM75BIMX-5+
8 SO (SOP)
T&R
5.0
LM75BIM-5
LM75BIMM-5+
8 礛AX (礢OP)
Bulk
5.0
T00B
LM75BIMMX-5+
8 礛AX (礢OP)
T&R
5.0
T00B
OS
SDA
SCL
A0
A1
A2
+V
S
= 3.0V to 5.5V
SILICON
BANDGAP
TEMPERATURE
SENSOR
9-BIT DELTA-
SIGMA ADC
CONFIGURATION
REGISTER
TOS SET POINT
REGISTER
THYST SET
POINT REGISTER
SET POINT
COMPARATOR W/
HYSTERESIS
2-WIRE INTERFACE
POINTER
REGISTER
8
8
16
16
16
16
16
8
3
1
2
4
7
6
5
1
+
2
3
4
8
7
6
5
+V
S
A0
A1
A2
GND
OS
SCL
SDA
LM75
?SPAN class="pst LM75BIMX-5-_2292639_11">MAX (?SPAN class="pst LM75BIMX-5-_2292639_11">SOP), SO
TOP VIEW
Pin Configuration
发布紧急采购，3分钟左右您将得到回复。
相关PDF资料
LM92CIMX/NOPB
IC SENSOR TEMP/THERM COMP 8-SOIC
LT1123CST#TRPBF
IC REG CTRLR SGL 5V SOT223
LT1248IS#PBF
IC PFC CTRLR AVERAGE CURR 16SOIC
LT1249IS8#PBF
IC PFC CTRLR AVERAGE CURR 8SOIC
LT1577CS-3.3/2.8#TRPBF
IC REG CTRLR DUAL OUT 16SOIC
LT1640HIN8#PBF
IC CONTRLR HOTSWAP NEGVOLT 8-DIP
LT1641IS8#TR
IC CTRLR HOTSWAP POS VOLT 8SOIC
LT1939IDD#TRPBF
IC REG DL BUCK/LINEAR 12DFN
相关代理商/技术参数
LM75BTP,147
功能描述:板上安装温度传感器 DIGIT OUT 2C ACC 11b
RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor
LM75CIM3
制造商:Texas Instruments 功能描述:*
LM75CIM-3
制造商:Texas Instruments 功能描述:
LM75CIM-3
制造商:Texas Instruments 功能描述:TEMPERATURE SENSOR SMD SOIC8 3V
LM75CIM-3/NOPB
功能描述:IC TEMP SENSOR DGTL 8-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 热管理 系列:- 标准包装:1 系列:- 功能:温度监控系统（传感器） 传感器类型:内部和外部 感应温度:-40°C ~ 125°C，外部传感器 精确度:±2.5°C 本地（最大值），±5°C 远程（最大值） 拓扑:ADC，比较器，寄存器库 输出类型:2 线 SMBus? 输出警报:无 输出风扇:无 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:SOT-23-8 供应商设备封装:SOT-23-8 包装:Digi-Reel® 其它名称:296-22675-6
LM75CIM-5
制造商:Texas Instruments 功能描述: 制造商:Texas Instruments 功能描述:TEMPERATURE SENSOR SMD SOIC8 5V
LM75CIM-5
制造商:Texas Instruments 功能描述:TEMPERATURE SENSOR SMD SOIC8 5V
LM75CIM-5/HALF
制造商:Texas Instruments 功能描述:TEMPERATURE SENSOR SMD SOIC8 5V