http://www.datasheet4u.com

900,000+ Datasheet PDF Search and Download

Datasheet4U offers most rated semiconductors datasheets pdf




  ON Semiconductor Electronic Components Datasheet  

NCT203 Datasheet

Low Voltage High Accuracy Temperature Monitor

No Preview Available !

NCT203 pdf
NCT203
Low Voltage, High
Accuracy Temperature
Monitor with I2C Interface
The NCT203 is a digital thermometer and undertemperature/
overtemperature alarm, intended for use in thermal management
systems requiring low power and size. The NCT203 operates over a
supply range of 1.4 V to 2.75 V making it possible to use it in a wide
range of applications including low power devices.
The NCT203 can measure the ambient temperature accurate to
±1.75°C. The device operates over a wide temperature range of 40 to
+125°C.
The NCT203 has a configurable ALERT output and over
temperature shutdown THERM pin.
Communication with the NCT203 is accomplished via the I2C
interface which is compatible with industry standard protocols.
Through this interface the NCT203s internal registers may be
accessed. These registers allow the user to read the current
temperature, change the configuration settings and adjust limits.
An ALERT output signals when the onchip temperature is out of
range. The THERM output is a comparator output that can be used to
shut down the system if it exceeds the programmed limit. The ALERT
output can be reconfigured as a second THERM output, if required.
Features
Small DFN Package
OnChip Temperature Sensor
Low Voltage Operation: 1.4 V to 2.75 V
Low Quiescent Current:
44 mA Normal Mode (max)
20 mA Shutdown (max)
Power Saving Shutdown Mode
Operating Temperature Range of 40°C to 125°C
2wire I2C Serial Interface
Programmable Over/Undertemperature Limits
This is a PbFree Device
Applications
Smart Phones, Tablet PCs, Satellite Navigation, Smart Batteries
http://onsemi.com
DFN8
MT SUFFIX
CASE 511BU
PIN ASSIGNMENTS
VDD
NC
NC
THERM
18
27
36
45
DFN
(Top View)
SCL
SDA
ALERT/THERM2
GND
MARKING DIAGRAM
1
J2 MG
G
J2 = Specific Device Code
M = Date Code
G = PbFree Device
(*Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 13 of this data sheet.
© Semiconductor Components Industries, LLC, 2013
June, 2013 Rev. 2
1
Publication Order Number:
NCT203/D


  ON Semiconductor Electronic Components Datasheet  

NCT203 Datasheet

Low Voltage High Accuracy Temperature Monitor

No Preview Available !

NCT203 pdf
NCT203
CONVERSION RATE
REGISTER
TEMPERATURE
VALUE REGISTER
RUN/
STANDBY
BUSY
ONCHIP
TEMPERATURE
SENSOR
NCT203
STATUS REGISTER
TEMPERATURE
LOWLIMIT REGISTER
TEMPERATURE
HIGHLIMIT REGISTER
TEMPERATURE THERM
LIMIT
HYSTERESIS
REGISTER
ADDRESS POINTER
REGISTER
CONFIGURATION
REGISTERS
INTERRUPT
MASKING
I2C INTERFACE
15
VDD
GND
7
SDA
8
SCL
Figure 1. Functional Block Diagram
6
ALERT/
THERM2
4 THERM
1.4V TO 2.75V
0.1 μF
VDD
OVERTEMPERATURE
SHUTDOWN
TYP 10 kW
VDD
NCT203
SCL
SDA
ALERT/
THERM2
THERM
GND
VDD
TYP 10 kW
I2C Master
Figure 2. Typical Application Circuit
Table 1. PIN FUNCTION DESCRIPTION DFN PACKAGE
Pin No.
Pin Name
Description
1 VDD Positive Supply, 1.4 V to 2.75 V
2 NC No connect leave this pin floating.
3 NC No connect leave this pin floating.
4
THERM
OpenDrain Output. Can be used to throttle a CPU clock in the event of an overtemperature condi-
tion. Requires pullup resistor to VDD. Active low output.
5
GND
Supply Ground Connection.
6 ALERT/THERM2 OpenDrain Logic Output used as Interrupt. This can also be configured as a second THERM out-
put. Requires pullup resistor to VDD. Active low output.
7
SDA
Logic Input/Output, I2C Serial Data. Requires pullup resistor to VDD.
8
SCL
Logic Input, I2C serial clock. Requires pullup resistor to VDD.
http://onsemi.com
2


Part Number NCT203
Description Low Voltage High Accuracy Temperature Monitor
Maker ON Semiconductor
Total Page 13 Pages
PDF Download
NCT203 pdf
Download PDF File
NCT203 pdf
View for Mobile



Buy Electronic Components




Related Datasheet

1 NCT203 Low Voltage High Accuracy Temperature Monitor ON Semiconductor
ON Semiconductor
NCT203 pdf






Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

site map

webmaste! click here

contact us

Buy Components