NCT375 Datasheet, PDF (1/16 Pages) ON Semiconductor – Industry Standard Digital Temperature Sensor with 2‐wire Interface

NCT375
Industry Standard Digital
Temperature Sensor with
2‐wire Interface
The NCT375 is a two-wire serially programmable temperature
sensor with an over-temperature/interrupt output pin to signal out of
limit conditions. This is an open-drain pin and can operate in either
comparator or interrupt mode. Temperature measurements are
converted into digital form using a high resolution (12 bit),
sigma-delta, analog-to-digital converter (ADC). The device operates
over the –55°C to +125°C temperature range.
Communication with the NCT375 is accomplished via the
SMBus/I²C interface. Three address selection pins, A2, A1 and A0,
can be used to connect up to 8 NCT375s to a single bus. Through this
interface the NCT375s internal registers may be accessed. These
registers allow the user to read the current temperature, change the
configuration settings and adjust the temperature limits.
The NCT375 has a wide supply voltage range of 3.0 V to 5.5 V. The
average supply current is 575 mA at 3.3 V. It also offers a shutdown
mode to conserve power. The typical shutdown current is 3 mA.
The NCT375 is available in three, space saving packages – 8-lead
DFN, 8-lead Micro8t and 8-lead SOIC and is also fully pin and
register compatible with the NCT75, LM75 and TCN75.
Features
• 12-bit Temperature-to-Digital Converter
• Input Voltage Range from 3.0 V to 5.5 V
• Temperature Range from −55°C to +125°C
• SMBus/I²C Interface
• Overtemperature Indicator
• Support for SMBus/ALERT
• Shutdown Mode for Low Power Consumption
• One-shot Mode
• Available in 8-pin DFN, 8-pin Micro8t and SOIC Packages
• These Devices are Pb-Free, Halogen Free/BFR Free and are RoHS
Compliant
Applications
• Computer Thermal Monitoring
• Thermal Protection
• Isolated Sensors
• Battery Management
• Office Electronics
• Electronic Test Equipment
• Thermostat Controls
• System Thermal Management
www.onsemi.com
DFN8
CASE 506AA
SOIC8
CASE 751
Micro8t
CASE 846A
PIN ASSIGNMENT
SDA 1
SCL 2
OS/ALERT 3
GND 4
(Top View)
8 V_DD
7 A0
6 A1
5 A2
MARKING DIAGRAMS
1
35MG
G
DFN8
8
T375
AYWG
G
1
Micro8t
M
= Date Code
A
= Assembly Location
Y
= Year
W
= Work Week
G
= Pb-Free Package
(Note: Microdot may be in either location)
8
NCT375
ALYW
G
1
SOIC8
A
= Assembly Location
L
= Wafer Lot
Y
= Year
W
= Work Week
G
= Pb-Free Package
© Semiconductor Components Industries, LLC, 2015
June, 2015 − Rev. 0
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 13 of this data sheet.
1
Publication Order Number:
NCT375/D