TMP01 Datasheet PDF - Analog Devices
Part Number | TMP01 | |
Description | Low Power/ Programmable Temperature Controller | |
Manufacturers | Analog Devices | |
Logo | ||
There is a preview and TMP01 download ( pdf file ) link at the bottom of this page. Total 20 Pages |
Preview 1 page No Preview Available ! FEATURES
−55°C to +125°C (−67°F to +257°F) operation
±1.0°C accuracy over temperature (typ)
Temperature-proportional voltage output
User-programmable temperature trip points
User-programmable hysteresis
20 mA open-collector trip point outputs
TTL/CMOS compatible
Single-supply operation (4.5 V to 13.2 V)
PDIP, SOIC, and TO-99 packages
APPLICATIONS
Over/under temperature sensor and alarm
Board-level temperature sensing
Temperature controllers
Electronic thermostats
Thermal protection
HVAC systems
Industrial process control
Remote sensors
GENERAL DESCRIPTION
The TMP01 is a temperature sensor that generates a voltage
output proportional to absolute temperature and a control
signal from one of two outputs when the device is either above
or below a specific temperature range. Both the high/low
temperature trip points and hysteresis (overshoot) band are
determined by user-selected external resistors. For high volume
production, these resistors are available on board.
The TMP01 consists of a band gap voltage reference combined
with a pair of matched comparators. The reference provides
both a constant 2.5 V output and a voltage proportional to
absolute temperature (VPTAT) which has a precise temperature
coefficient of 5 mV/K and is 1.49 V (nominal) at 25°C. The
comparators compare VPTAT with the externally set tempera-
ture trip points and generate an open-collector output signal
when one of their respective thresholds has been exceeded.
Low Power Programmable
Temperature Controller
TMP01
FUNCTIONAL BLOCK DIAGRAM
TEMPERATURE
VREF 1
2.5V
SENSOR AND
VOLTAGE
SENSOR
8 V+
R1 REFERENCE
SET 2
HIGH
R2
SET 3
LOW
WINDOW
COMPARATOR
7 OVER
6 UNDER
R3
GND 4
HYSTERESIS
GENERATOR
5 VPTAT
TMP01
Figure 1.
Hysteresis is also programmed by the external resistor chain
and is determined by the total current drawn out of the 2.5 V
reference. This current is mirrored and used to generate a
hysteresis offset voltage of the appropriate polarity after a
comparator has been tripped. The comparators are connected
in parallel, which guarantees that there is no hysteresis overlap
and eliminates erratic transitions between adjacent trip zones.
The TMP01 utilizes proprietary thin-film resistors in conjunc-
tion with production laser trimming to maintain a temperature
accuracy of ±1°C (typical) over the rated temperature range,
with excellent linearity. The open-collector outputs are capable
of sinking 20 mA, enabling the TMP01 to drive control relays
directly. Operating from a 5 V supply, quiescent current is only
500 μA (max).
The TMP01 is available in 8-pin mini PDIP, SOIC, and TO-99
packages.
Rev. E
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113 ©1993–2009 Analog Devices, Inc. All rights reserved.
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ABSOLUTE MAXIMUM RATINGS
Table 3.
Parameter
Maximum Supply Voltage
Maximum Input Voltage (SET HIGH, SET LOW)
Maximum Output Current (VREF, VPTAT)
Maximum Output Current (Open-Collector
Outputs)
Maximum Output Voltage (Open-Collector
Outputs)
Operating Temperature Range
Die Junction Temperature
Storage Temperature Range
Lead Temperature (Soldering 60 sec)
Rating
−0.3 V to +15 V
−0.3 V to V+ +0.3 V
2 mA
50 mA
15 V
−55°C to +150°C
150°C
−65°C to +150°C
300°C
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
TMP01
Digital inputs and outputs are protected; however, permanent
damage may occur on unprotected units from high energy
electrostatic fields. Keep units in conductive foam or packaging
at all times until ready to use. Use proper antistatic handling
procedures.
Remove power before inserting or removing units from their
sockets.
Table 4.
Package Type
8-Lead PDIP (N-8)
8-Lead SOIC (R-8)
8-Pin TO-99 Can (H-08)
θJA
1031
1582
1501
θJC Unit
43 °C/W
43 °C/W
18 °C/W
1 θJA is specified for device in socket (worst-case conditions).
2 θJA is specified for device mounted on PCB.
ESD CAUTION
Rev. E | Page 5 of 20
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