DS75LVSTR データシートの表示（PDF） - Maxim Integrated
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DS75LVSTR Datasheet PDF : 14 Pages
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DS75LV
Digital Thermometer and Thermostat
General Description
The DS75LV low-voltage (1.7V to 3.7V) digital thermometer
and thermostat provides 9, 10, 11, or 12-bit digital temperature
readings over a -55°C to +125°C range with ±2°C accuracy
over a -25°C to +100°C range. At power-up, the DS75LV
defaults to 9-bit resolution for software compatibility with the
LM75. Communication with the DS75LV is achieved through
a simple 2-wire serial interface.
The DS75LV thermostat has a dedicated open-drain output
(OS) and programmable fault tolerance, which allows the
user to define the number of consecutive error conditions that
must occur before OS is activated. There are two thermostatic
operating modes that control thermostat operation based on
user-defined trip-points (TOS and THYST).
Applications
●● Personal Computers
●● Cellular Base Stations
●● Office Equipment
●● Any Thermally Sensitive System
Ordering Information appears at end of data sheet.
Functional Block Diagram
Benefits and Features
●● Extend Performance Range with Low-Voltage,
1.7V to 3.7V Operating Range
●● Maximize System Accuracy in Broad Range of
Thermal Management Applications
• Measures Temperature from -55°C to +125°C
(-67°F to +257°F)
• ±2°C Accuracy over a -25°C to 100°C Range
• User-Configurable Resolution from 9 Bits (Default)
to 12 Bits (0.5°C to 0.0625°C)
●● Easy Upgrade to LM75: Pin and Software Compatible
●● Simplify Distributed Temperature-Sensing
Applications with Multidrop Capability
• Up to Eight DS75LVs Can Operate on 2-Wire Bus
●● Increase Reliability and System Robustness
• Internally Filtered Data Lines for Noise Immunity
(50ns Deglitch)
• Bus Timeout Feature Prevents Lockup on 2-Wire
Interface
●● Minimize Power Consumption with Built-In Shutdown
Mode
●● Flexible User-Defined Thermostatic Modes with
Programmable Fault Tolerance
PRECISION
REFERENCE
VDD
SCL
SDA
ADDRESS
A0
AND
A1
I/O CONTROL
A2
GND
OVERSAMPLING
MODULATOR
DIGITAL
DECIMATOR
CONFIGURATION
REGISTER
TEMPERATURE
REGISTER
TOS AND THYST
REGISTERS
DS75LV
THERMOSTAT
COMPARATOR
RP
OS
19-7469; Rev 5; 11/16
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