tmp100.pdf
(
268 KB
)
Pobierz
Digital Temperature Sensor with I2C Serial Interface (Rev. F
TMP100
TMP101
SBOS231F − JANUARY 2002 − REVISED DECEMBER 2005
Digital Temperature Sensor
with I
2
C
Interface
FEATURES
DESCRIPTION
The TMP100 and TMP101 are two-wire, serial output
temperature sensors available in SOT23-6 packages.
Requiring no external components, the TMP100 and
TMP101 are capable of reading temperatures with a
resolution of 0.0625
RESOLUTION: 9- to 12-Bits, User-Selectable
ACCURACY:
±
2.0
°
C from −25
°
C to +85
°
C (max)
C.
The TMP100 and TMP101 feature SMBus and I
2
C
interface compatibility, with the TMP100 allowing up to
eight devices on one bus. The TMP101 offers SMBus alert
function with up to three devices per bus.
The TMP100 and TMP101 are ideal for extended
temperature measurement in a variety of communication,
computer, consumer, environmental, industrial, and
instrumentation applications.
The TMP100 and TMP101 are specified for operation over
a temperature range of −55
°
C to +125
°
C.
°
±
3.0
°
C from −55
°
C to +125
°
C (max)
LOW QUIESCENT CURRENT:
45
µ
A, 0.1
µ
A Standby
WIDE SUPPLY RANGE: 2.7V to 5.5V
TINY SOT23-6 PACKAGE
APPLICATIONS
COMPUTER PERIPHERAL THERMAL
PROTECTION
NOTEBOOK COMPUTERS
CELL PHONES
BATTERY MANAGEMENT
OFFICE MACHINES
THERMOSTAT CONTROLS
ENVIRONMENTAL MONITORING AND HVAC
ELECTROMECHANICAL DEVICE
TEMPERATURE
Temperature
Temperature
SCL
1
Diode
Te m p .
Sensor
Control
Logic
6
SDA
SCL
1
Diode
Tem p .
Sensor
Control
Logic
6
SDA
GND
2
∆Σ
A/D
Converter
Serial
Interface
5
ADD0
GND
2
∆Σ
A/D
Converter
Serial
Interface
5
ADD0
ADD1
3
OSC
Config
and Temp
Register
4
V+
ALERT
3
OSC
Config
and Temp
Register
4
V+
TMP100
TMP101
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments
semiconductor products and disclaimers thereto appears at the end of this data sheet.
I
2
C is a trademark of Koninklijke Philips Electronics N.V. All other trademarks are the property of their respective owners.
Copyright
2002−2005, Texas Instruments Incorporated
www.ti.com
DIGITAL OUTPUT: I
2
C Serial 2-Wire
POWER-SUPPLY TEMPERATURE
MONITORING
www.ti.com
SBOS231F − JANUARY 2002 − REVISED DECEMBER 2005
ABSOLUTE MAXIMUM RATINGS
(1)
Power Supply, V+
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.5V
This integrated circuit can be damaged by ESD. Texas
Instruments recommends that all integrated circuits be
handled with appropriate precautions. Failure to observe
proper handling and installation procedures can cause damage.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Temperature Range
−0.5V to 7.5V
. . . . . . . . . . . . . . .
−55
°
C to +125
°
C
ESD damage can range from subtle performance degradation to
complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could
cause the device not to meet its published specifications.
. . . . . . . . . . . . . . . . .
Junction Temperature (T
J
max)
−60
°
C to +150
°
C
. . . . . . . . . . . . . . . . . . . . . .
+150
°
C
ESD Rating, Human Body Model
. . . . . . . . . . . . . . . . . . . . .
2000V
. . . . . . . . . . . . . . . . . . . . . . .
(1)
Stresses above these ratings may cause permanent damage.
Exposure to absolute maximum conditions for extended periods
may degrade device reliability. These are stress ratings only, and
functional operation of the device at these or any other conditions
beyond those specified is not supported.
(2)
Input voltage rating applies to all TMP100 and TMP101 input
voltages.
Machine Model
200V
ORDERING INFORMATION
(1)
PRODUCT PACKAGE-LEAD PACKAGE DESIGNATOR PACKAGE MARKING
TMP100 SOT23-6 DBV T100
TMP100 SOT23-6 DBV T100
TMP101 SOT23-6 DBV T101
TMP101 SOT23-6 DBV T101
(1)
For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI web site
at www.ti.com.
PIN CONFIGURATION
Top View
SOT23 Top View
SOT23
SCL
1
6
SDA
SCL
1
6
SDA
GND
2
5
ADD0
GND
2
5
ADD0
ADD1
3
4
V+
ALERT
3
4
V+
TMP100
TMP101
2
Input Voltage
(2)
Storage Temperature Range
www.ti.com
SBOS231F − JANUARY 2002 − REVISED DECEMBER 2005
ELECTRICAL CHARACTERISTICS
At T
A
= −55
°
C to +125
°
C and V+ = 2.7V t
o 5.5V, unless otherwise noted.
PARAMETER
TEST CONDITIONS
TMP100, TMP101
UNIT
MIN
TYP
MAX
TEMPERATURE INPUT
Range
−55
+125
°
C
Accuracy (temperature error)
−25
°
C to +85
°
C
±
0.5
±
2.0
°
C
−55
°
C to +125
°
C
±
1.0
±
3.0
°
C
Resolution
Selectable
±
0.0625
°
C
DIGITAL INPUT/OUTPUT
Input Logic Levels:
V
IH
0.7(V+)
6.0
V
V
IL
−0.5
0.3(V+)
V
Input Current, I
IN
0V
≤
V
IN
≤
6V
1
µ
A
Output Logic Levels:
V
OL
SDA
I
OL
= 3mA
0
0.15
0.4
V
V
OL
ALERT
I
OL
= 4mA
0
0.15
0.4
V
Resolution
Selectable
9 to 12
Bits
Conversion Time
9-Bit
40
75
ms
10-Bit
80
150
ms
11-Bit
160
300
ms
12-Bit
320
600
ms
Conversion Rate
9-Bit
25
s/s
10-Bit
12
s/s
11-Bit
6
s/s
12-Bit
3
s/s
POWER SUPPLY
Operating Range
2.7
5.5
V
Quiescent Current
I
Q
Serial Bus Inactive
45
75
µ
A
Serial Bus Active, SCL Frequency = 400kHz
70
µ
A
Serial Bus Active, SCL Frequency = 3.4MHz
150
µ
A
Shutdown Current
I
SD
Serial Bus Inactive
0.1
1
µ
A
Serial Bus Active, SCL Frequency = 400kHz
20
µ
A
Serial Bus Active, SCL Frequency = 3.4MHz
100
µ
A
TEMPERATURE RANGE
Specified Range
−55
+125
°
C
Storage Range
−60
+150
°
C
Thermal Resistance
JA
SOT23-6 Surface-Mount
200
°
C/W
3
PARAMETER
TEST CONDITIONS
UNIT
www.ti.com
SBOS231F − JANUARY 2002 − REVISED DECEMBER 2005
TYPICAL CHARACTERISTICS
At T
A
= +25
°
C and V+ = 5.0V, unless otherwise noted.
QUIESCENT CURRENT vs TEMPERATURE
SHUTDOWN CURRENT vs TEMPERATURE
70
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
−
0.1
60
V+=5V
50
V+=2.7V
40
Serial Bus Inactive
30
−
60
−
40
−
00 0000000
−
60
−
40
−
20 0
20 40 60 80 100 120 140
Temperature (
C)
Temperature (
C)
CONVERSION TIME vs TEMPERATURE
TEMPERATURE ACCURACY vs TEMPERATURE
400
2.0
1.5
1.0
350
V+ = 5V
0.5
0.0
300
−
0.5
V+ = 2.7V
−
1.0
−
1.5
NOTE: 12−bit resolution.
3 Typical Units
NOTE: 12−bit resolution.
250
−
2.0
−
60
−
40
−
00 0000000
−
60
−
40
−
20 0
20 40 60 80 100 120 140
Temperature (C)
Temperature (C)
QUIESCENT CURRENT WITH
BUS ACTIVITY vs TEMPERATURE
180
160
140
120
100
80
60
40
20
0
125C
25C
125
C
25C
−
55C
−
55C
FAST MODE
Hs MODE
10k
100k
1M
10M
SCL Frequency (Hz)
4
www.ti.com
SBOS231F − JANUARY 2002 − REVISED DECEMBER 2005
APPLICATIONS INFORMATION
The TMP100 and TMP101 are digital temperature sensors
optimal for thermal management and thermal protection
applications. The TMP100 and TMP101 are I
2
C and
SMBus interface compatible and are specified over a
temperature range of −55
To maintain the accuracy in applications requiring air or
surface temperature measurement, care should be taken
to isolate the package and leads from ambient air
temperature. A thermally conductive adhesive will assist
in achieving accurate surface temperature measurement.
°
C to +125
C.
POINTER REGISTER
Figure 3 shows the internal register structure of the
TMP100 and TMP101. The 8-bit Pointer Register of the
TMP100 and TMP101 is used to address a given data
register. The Pointer Register uses the two LSBs to
identify which of the data registers should respond to a
read or write command. Table 1 identifies the bits of the
Pointer Register byte. Table 2 describes the pointer
address of the registers available in the TMP100 and
TMP101. Power-up Reset value of P1/P0 is 00.
The TMP100 and TMP101 require no external
components for operation except for pull-up resistors on
SCL, SDA, and ALERT, although a 0.1
µ
F bypass
capacitor is recommended, as shown in Figure 1 and
Figure 2.
V+
0.1
µ
F
4
Pointer
Register
SCL
1
3
ALERT
(Output)
To I
2
C
Controller
SDA
6
TMP101
5
ADD0
(Input)
Temperature
Register
2
NOTE: (1) SCL, SDA and ALERT
require pull−up resistors for
I
2
C bus applications.
Configuration
Register
SCL
I/O
Control
Interface
GND
Figure 1. Typical Connections of the TMP101
T
LOW
Register
SDA
V+
T
HIGH
Register
4
0.1
µ
F
Figure 3. Internal Register Structure of the
TMP100 and TMP101
3
ADD1
(Input)
SCL
1
To I
2
C
Controller
Table 1. Pointer Register Type
SDA
6
TMP100
5
ADD0
(Input)
P7
P6
P5
P4
P3
P2
P1
P0
0
0
0
0
0
0
Register Bits
2
NOTE: (1) SCL and SDA
require pull−up resistors for
I
2
C bus applications.
Table 2. Pointer Addresses of the TMP100 and
TM
P101 Registers
GND
P1
P0
REGISTER
0
0
Temperature Register (READ Only)
Figure 2. Typical Connections of the TMP100
0
1
Configuration Register (READ/WRITE)
1
0
T
LOW
Register (READ/WRITE)
The die flag of the lead frame is connected to pin 2. The
sensing device of the TMP100 and TMP101 is the chip
itself. Thermal paths run through the package leads as well
as the plastic package. The lower thermal resistance of
metal causes the leads to provide the primary thermal
path. The GND pin of the TMP100 or TMP101 is directly
connected to the metal lead frame, and is the best choice
for thermal input.
1
1
T
HIGH
Register (READ/WRITE)
TEMPERATURE REGISTER
The Temperature Register of the TMP100 or TMP101 is a
12-bit read-only register that stores the output of the most
recent conversion. Two bytes must be read to obtain data
and are described in Table 3 and Table 4. The first 12 bits
are used to indicate temperature with all remaining bits
5
°
Plik z chomika:
chemik0
Inne pliki z tego folderu:
avr-fuse_atmega16.pdf
(94 KB)
atmega16_pl.pdf
(916 KB)
Roznice at attiny.pdf
(118 KB)
pcf8583.pdf
(134 KB)
pcf8574a.pdf
(666 KB)
Inne foldery tego chomika:
Arduino_lib
AVR
CMOS4000
Elektor
Libraries
Zgłoś jeśli
naruszono regulamin