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NVT210DMTR2G

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20
© Semiconductor Components Industries, LLC, 2015
May, 2015 − Rev. 8
1 Publication Order Number:
NVT210/D
NVT210
+15C Temperature Monitor
with Series Resistance
Cancellation
The NVT210 is a dual-channel digital thermometer and
undertemperature/overtemperature alarm, intended for use in thermal
management systems. It is register-compatible with the NCT1008 and
NCT72. A feature of the NVT210 is series resistance cancellation,
where up to 1.5 kW (typical) of resistance in series with the temperature
monitoring diode can be automatically cancelled from the temperature
result, allowing noise filtering. The NVT210 has a configurable ALERT
output and an extended, switchable temperature measurement range.
The NVT210 can measure the temperature of a remote thermal diode
accurate to ±1°C and the ambient temperature accurate to ±3°C. The
temperature measurement range defaults to 0°C to +127°C, compatible
with the NCT1008 and NCT72, but it can be switched to a wider
measurement range of −64°C to +191°C.
The NVT210 communicates over a 2-wire serial interface,
compatible with system management bus (SMBus/I
2
C) standards. The
default SMBus/I
2
C address of the NVT210 is 0x4C. An NVT210D is
available with an SMBus/I
2
C address of 0x4D. This is useful if more
than one NVT210 is used on the same SMBus/I
2
C.
An ALERT
output signals when the on-chip or remote temperature is
out of range. The THERM
output is a comparator output that allows
on/off control of a cooling fan. The ALERT
output can be reconfigured
as a second THERM
output, if required.
The NVT210 has been through Automotive Qualification according to
AEC−Q100 Grade 1 standards.
Features
• On-chip and Remote Temperature Sensor
• 0.25°C Resolution/1°C Accuracy on Remote Channel
• 1°C Resolution/1°C Accuracy on Local Channel
• Series Resistance Cancellation Up to 1.5 kW
• Extended, Switchable Temperature Measurement Range
0°C to +127°C (Default) or –64°C to +191°C
• Register-compatible with NCT1008 and NCT72
• 2-wire SMBus/I
2
C Serial Interface with SMBus Alert Support
• Programmable Over/Undertemperature Limits
• Offset Registers for System Calibration
• Up to Two Overtemperature Fail-safe THERM Outputs
• 8-lead MSOP Package and a 2 × 2 WDFN8 Package
• 240 mA Operating Current, 5 mA Standby Current
• Automotive Qualification According to AEC−Q100, Grade 1
• Pb-Free Packages are Available
Applications
• Automotive
• Embedded Systems
MARKING DIAGRAMS
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PIN ASSIGNMENT
MSOP8
DM SUFFIX
CASE 846A
See detailed ordering and shipping information in the package
dimensions section on page 18 of this data sheet.
ORDERING INFORMATION
XXXX = Specific Device Code
A = Assembly Location
Y = Year
W = Work Week
G = Pb-Free Package
XXXX
AYWG
G
1
8
(Top View)
V
DD
D+
D−
THERM
SCLK
SDATA
ALERT/
THERM2
GND
1
Vx = Device Code (Where x = C or D)
M = Date Code
G = Pb-Free Package
(Note: Microdot may be in either location)
VxMG
G
1
(Note: Microdot may be in either location)
WDFN8
MT SUFFIX
CASE 511AT
WDFN8
MSOP8
NVT210
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2
Figure 1. Functional Block Diagram
ON-CHIP
TEMPERATURE
SENSOR
ANALOG
MUX
BUSY
A-TO-D
CONVERTER
LOCAL TEMPERATURE
VALUE REGISTER
REMOTE OFFSET
REGISTER
RUN/STANDBY
EXTERNAL DIODE OPEN-CIRCUIT
STATUS REGISTER
SMBus/I
2
C INTERFACE
LIMIT COMPARATOR
DIGITAL MUX
INTERRUPT
MASKING
SDATA SCLK
87
ADDRESS POINTER
REGISTER
CONVERSION RATE
REGISTER
LOCAL TEMPERATURE
LOW-LIMIT REGISTER
LOCAL TEMPERATURE
HIGH-LIMIT REGISTER
REMOTE TEMPERATURE
LOW-LIMIT REGISTER
REMOTE TEMPERATURE
HIGH-LIMIT REGISTER
LOCAL THERM
LIMIT REGISTERS
EXTERNAL THERM
LIMIT REGISTERS
CONFIGURATION
REGISTERS
4
6
GND
5
V
DD
1
NVT210
D+
ALERT
/THERM2THERM
2
D−
3
REMOTE TEMPERATURE
VALUE REGISTER
DIGITAL MUX
Table 1. PIN ASSIGNMENT
Pin No. Mnemonic Description
1 V
DD
Positive Supply, 2.8 V to 3.6 V.
2 D+ Positive Connection to Remote Temperature Sensor.
3 D− Negative Connection to Remote Temperature Sensor.
4 THERM Open-drain Output. Can be used as an overtemperature shutdown pin. Requires pullup resistor.
5 GND Supply Ground Connection.
6 ALERT/THERM2 Open-drain Logic Output Used as Interrupt or SMBus ALERT. This can also be configured as a
second THERM
output. Requires pullup resistor to V
DD
.
7 SDATA Logic Input/Output, SMBus/I
2
C Serial Data. Open-drain Output. Requires pullup resistor.
8
SCLK Logic Input, SMBus/I
2
C Serial Clock. Requires pullup resistor.
Table 2. ABSOLUTE MAXIMUM RATINGS
Parameter Rating Unit
Positive Supply Voltage (V
DD
) to GND −0.3, +3.6 V
D+ −0.3 to V
DD
+ 0.3 V
D− to GND −0.3 to +0.6 V
SCLK, SDATA, ALERT, THERM −0.3 to +3.6 V
Input Current, SDATA, THERM −1, +50 mA
Input Current, D− ±1 mA
ESD Rating, All Pins (Human Body Model) 1,500 V
Maximum Junction Temperature (T
J
MAX
) 150 °C
Storage Temperature Range −65 to +150 °C
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
NOTE: This device is ESD sensitive. Use standard ESD precautions when handling.
NVT210
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3
Table 3. THERMAL CHARACTERISTICS (Note 1)
Package Type
q
JA
q
JC
Unit
8-lead MSOP 142 43.74 °C/W
1. q
JA
is specified for the worst-case conditions, that is, a device soldered in a circuit board for surface-mount packages.
Table 4. SMBus/I
2
C TIMING SPECIFICATIONS (Note 1)
Parameter
Limit at T
MIN
and T
MAX
Unit Description
f
SCLK
400 kHz max −
t
LOW
1.3
ms min
Clock Low Period, between 10% Points
t
HIGH
0.6
ms min
Clock High Period, between 90% Points
t
R
300 ns max Clock/Data Rise Time
t
F
300 ns max Clock/Data Fall Time
t
SU;
STA
600 ns min Start Condition Setup Time
t
HD;
STA
(Note 2) 600 ns min Start Condition Hold Time
t
SU;
DAT
(Note 3) 100 ns min Data Setup Time
t
SU;
STO
(Note 4) 600 ns min Stop Condition Setup Time
t
BUF
1.3
ms min
Bus Free Time between Stop and Start Conditions
1. Guaranteed by design, but not production tested.
2. Time from 10% of SDATA to 90% of SCLK.
3. Time for 10% or 90% of SDATA to 10% of SCLK.
4. Time for 90% of SCLK to 10% of SDATA.
Figure 2. Serial Bus Timing
STOPSTART
t
SU; DAT
t
HIGH
t
F
t
HD; DAT
t
R
t
LOW
t
SU; STO
STOP START
SCLK
SDATA
t
BUF
t
HD; STA
t
HD; STA
t
SU; STA
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20

NVT210DMTR2G

Mfr. #:
Buy NVT210DMTR2G
Manufacturer:
ON Semiconductor
Description:
Board Mount Temperature Sensors REMOTE THERMAL SENSOR
Lifecycle:
New from this manufacturer.
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