TMP01FS Analog Devices Inc, TMP01FS Datasheet

Temperature Sensor IC IC Function:Digital Temperature Sensor

TMP01FS

Manufacturer Part Number
TMP01FS
Description
Temperature Sensor IC IC Function:Digital Temperature Sensor
Manufacturer
Analog Devices Inc
Datasheet

Specifications of TMP01FS

Package/case
8-SOIC
Leaded Process Compatible
No
Ic Generic Number
01
Mounting Type
Surface Mount
Operating Temp. Max
125 C
Operating Temp. Min
-55 C
Rohs Status
RoHS non-compliant
Sensing Temperature
-55°C ~ 125°C
Output Type
Open Collector
Voltage - Supply
4.5 V ~ 13.2 V
Accuracy
±1°C
Package / Case
8-SOIC (0.154", 3.90mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

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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
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.
1
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.
Trademarks and registered trademarks are the property of their respective owners.
Protected by U.S. Patent No. 5,195,827.
1
is a temperature sensor that generates a voltage
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
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.
R1
R2
R3
Low Power Programmable
FUNCTIONAL BLOCK DIAGRAM
VREF
Temperature Controller
HIGH
LOW
GND
SET
SET
©1993–2009 Analog Devices, Inc. All rights reserved.
1
2
3
4
2.5V
HYSTERESIS
GENERATOR
TEMPERATURE
SENSOR AND
COMPARATOR
REFERENCE
VOLTAGE
Figure 1.
WINDOW
TMP01
SENSOR
www.analog.com
8
7
6
5
TMP01
V+
OVER
UNDER
VPTAT

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TMP01FS Summary of contents

Page 1

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 13.2 V) PDIP, SOIC, and ...

Page 2

... TMP01 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 TMP01EST, TMP01FP, TMP01FS ............................................. 3 TMP01FJ ........................................................................................ 4 Absolute Maximum Ratings ............................................................ 5 Typical Performance Characteristics ............................................. 6 Theory of Operation ........................................................................ 8 Temperature Hysteresis ............................................................... 8 Programming the TMP01 ........................................................... 8 Understanding Error Sources ..................................................... 9 Safety Considerations in Heating and Cooling System Design ............................................................................................ 9 Applications Information .............................................................. 10 REVISION HISTORY 7/09— ...

Page 3

... SPECIFICATIONS TMP01ES, TMP01FP, TMP01FS PDIP and SOIC packages GND = O V, −40°C ≤ T Table 1. Parameter INPUTS SET HIGH, SET LOW Offset Voltage Offset Voltage Drift Input Bias Current, E Grade Input Bias Current, F Grade OUTPUT VPTAT Output Voltage 1 Scale Factor Temperature Accuracy, E Grade ...

Page 4

TMP01 TMP01FJ TO-99 metal can package GND = 0 V, −40°C ≤ T Table 2. Parameter INPUTS SET HIGH, SET LOW Offset Voltage Offset Voltage Drift Input Bias Current, F Grade OUTPUT VPTAT Output Voltage 1 ...

Page 5

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 ...

Page 6

TMP01 TYPICAL PERFORMANCE CHARACTERISTICS 550 525 500 475 +125°C 450 +85°C 425 400 +25°C 375 –40°C 350 SUPPLY VOLTAGE (V) Figure 3. Supply Current vs. Supply Voltage 5.0 4.5 4.0 3.5 3.0 –75 –50 – ...

Page 7

VREF –20 100 1k 10k 100k FREQUENCY (Hz) Figure 9. VREF Power Supply Rejection vs. Frequency 1.0 0 VREF 0.01 Figure 10. Set High, Set Low ...

Page 8

TMP01 THEORY OF OPERATION The TMP01 is a linear voltage-output temperature sensor, with a window comparator that can be programmed by the user to activate one of two open-collector outputs when a predeter- mined temperature setpoint voltage has been exceeded. ...

Page 9

The hysteresis current is readily calculated. For example, for 2 degrees of hysteresis μA. Next, the setpoint VREF voltages, V and V , are determined using the VPTAT SETHIGH SETLOW scale factor ...

Page 10

TMP01 APPLICATIONS INFORMATION SELF-HEATING EFFECTS In some applications, the user should consider the effects of self-heating due to the power dissipated by the open-collector outputs, which are capable of sinking 20 mA continuously. Under full load, the TMP01 open-collector output ...

Page 11

SWITCHING LOADS WITH THE OPEN-COLLECTOR OUTPUTS In many temperature sensing and control applications, some type of switching is required. Whether turn on a heater when the temperature goes below a minimum value or to turn off a ...

Page 12

TMP01 The last class of high power devices discussed here are thyristors, which includes SCRs and Triacs. Triacs are a useful alternative to relays for switching ac line voltages. The 2N6073A shown in Figure 21 is rated to handle 4A ...

Page 13

BUFFERING THE TEMPERATURE OUTPUT PIN The VPTAT sensor output is a low impedance dc output voltage with a 5 mV/K temperature coefficient, that is useful in multiple measurement and control applications. In many applications, this voltage needs to be transmitted ...

Page 14

TMP01 The current is proportional to the voltage on the VPTAT output, and is calibrated temperature of −40° for +85°C. The main equation governing the operation of this circuit gives the current ...

Page 15

OP290 TEMPERATURE VPTAT VREF SENSOR AND 1 VOLTAGE REFERENCE R1 2 WINDOW R2 COMPARATOR HYSTERESIS GENERATOR TMP01 ISOLATION AMPLIFIER In many industrial applications, the sensor is located in an envi- ronment that needs to be electrically isolated ...

Page 16

TMP01 TRANSLATING 5 mV mV/°C A useful circuit shown in Figure 31 translates the VPTAT output voltage, which is calibrated in Kelvins, into an output that can be read directly in degrees Celsius on a voltmeter display. To ...

Page 17

OUTLINE DIMENSIONS 0.210 (5.33) 0.150 (3.81) 0.130 (3.30) 0.115 (2.92) 0.25 (0.0098) 0.10 (0.0040) COPLANARITY 0.400 (10.16) 0.365 (9.27) 0.355 (9.02 0.280 (7.11) 0.250 (6.35) 1 0.240 (6.10) 4 0.100 (2.54) BSC 0.060 (1.52) MAX MAX 0.015 (0.38) ...

Page 18

... TMP01FS-REEL −40°C to +85°C TMP01FS-REEL7 −40°C to +85°C 1 TMP01FSZ −40°C to +85°C 1 TMP01FSZ-REEL −40°C to +85°C TMP01FSZ-REEL7 1 −40°C to +85°C TMP01FJ −40°C to +85° RoHS Compliant Part. REFERENCE PLANE 0.5000 (12.70) MIN 0 ...

Page 19

NOTES Rev Page TMP01 ...

Page 20

TMP01 NOTES ©1993–2009 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D00333-0-7/09(E) Rev Page ...

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