TMP01.PDF

Low Power, Programmable

Temperature Controller

TMP01*

FEATURES

–55 8 C to +125 8 C (–67 8 F to +257 8 F) Operation

6 1.0 8 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)

Low Cost 8-Pin DIP and SO Packages

FUNCTIONAL BLOCK DIAGRAM

2.5V

TEMPERATURE

SENSOR &

VOLTAGE

REFERENCE

SENSOR

VREF

V+

SET

HIGH

OVER

WINDOW

COMPARATOR

SET

LOW

UNDER

APPLICATIONS

Over/Under Temperature Sensor and Alarm

Board Level Temperature Sensing

Temperature Controllers

Electronic Thermostats

Thermal Protection

HVAC Systems

Industrial Process Control

Remote Sensors

GND

HYSTERESIS

GENERATOR

VPTAT

TMP01

Hysteresis is also programmed by the external resistor chain and

is determined by the total current drawn out of the 2.5 V refer-

ence. 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 (typ) 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 di-

rectly. Operating from a +5 V supply, quiescent current is only

500 mA (max).

The TMP01 is available in the low cost 8-pin epoxy mini-DIP

and SO (small outline) packages, and in die form.

GENERAL DESCRIPTION

The TMP01 is a temperature sensor which 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 tempera-

ture 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 bandgap voltage reference combined

with a pair of matched comparators. The reference provides

both a constant 2.5 V output and a voltage proportional to abso-

lute temperature (VPTAT) which has a precise temperature co-

efficient 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.

* Protected by U.S. Patent No. 5,195,827.

REV. C

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

which may result from its use. No license is granted by implication or

otherwise under any patent or patent rights of Analog Devices.

One Technology Way, P.O. Box 9106, Norwood. MA 02062-9106, U.S.A.

Tel: 617/329-4700

Fax: 617/326-8703

TMP01EP/FP, TMP01ES/FS–SPECIFICATIONS

Plastic DIP and Surface Mount Packages

(V+ = +5 V, GND = O V, –40

T A

+85

C unless otherwise noted)

Parameter

Symbol

Conditions

Min

Typ

Max

Units

INPUTS SET HIGH, SET LOW

Offset Voltage

V OS

0.25

Offset Voltage Drift

TCV OS

mV/°C

Input Bias Current, “E”

I B

Input Bias Current, “F”

I B

100

OUTPUT VPTAT 1

Output Voltage

VPTAT

T A = +25°C, No Load

1.49

Scale Factor

TC VPTAT

mV/K

Temperature Accuracy, “E”

T A = +25°C, No Load

–1.5

± 0.5

1.5

°C

Temperature Accuracy, “F”

T A = +25

C, No Load

–3

1.0

Temperature Accuracy, “E”

10°C < T A < 40°C, No Load

± 0.75

°C

Temperature Accuracy, “F”

C < T A < 40

C, No Load

1.5

Temperature Accuracy, “E”

–40°C < T A < 85°C, No Load

–3.0

± 1

3.0

°C

Temperature Accuracy, “F”

–40

C < T A < 85

C, No Load

–5.0

5.0

Temperature Accuracy, “E”

–55°C < T A < 125°C, No Load

± 1.5

°C

Temperature Accuracy, “F”

–55

C < T A < 125

C, No Load

2.5

Repeatability Error

DVPTAT Note 4

0.25

Degree

Long Term Drift Error

Notes 2 and 6

0.25

0.5

Degree

Power Supply Rejection Ratio

PSRR

T A = +25°C, 4.5 V £ V+ £ 13.2 V

± 0.02

± 0.1

%/V

OUTPUT VREF

Output Voltage, “E”

VREF

T A = +25

C, No Load

2.495 2.500

2.505

Output Voltage, “F”

VREF

T A = +25°C, No Load

2.490 2.500

2.510

Output Voltage, “E”

VREF

–40

C < T A < 85

C, No Load

2.490 2.500

2.510

Output Voltage, “F”

VREF

–40°C < T A < 85°C, No Load

2.485 2.500

2.515

Output Voltage, “E”

VREF

–55

C < T A < 125

C, No Load

2.5

0.01

Output Voltage, “F”

VREF

–55°C < T A < 125°C, No Load

2.5 ± 0.015

Drift

TC VREF

–10

ppm/

Line Regulation

4.5 V £ V+ £ 13.2 V

± 0.01

± 0.05

%/V

Load Regulation

I VREF

500

0.1

0.25

%/mA

Output Current, Zero Hysteresis I VREF

Hysteresis Current Scale Factor

SF HYS

(Note 1)

5.0

Turn-On Settling Time

To Rated Accuracy

OPEN-COLLECTOR OUTPUTS OVER, UNDER

Output Low Voltage

V OL

I SINK = 1.6 mA

0.25

0.4

Output Low Voltage

V OL

I SINK = 20 mA

0.6

Output Leakage Current

I OH

V+ = 12 V

100

Fall Time

t HL

See Test Load

POWER SUPPLY

Supply Range

V+

4.5

13.2

Supply Current

I SY

Unloaded, +V = 5 V

400

500

Supply Current

I SY

Unloaded, +V = 13.2 V

450

800

Power Dissipation

P DISS

+V = 5 V

2.0

2.5

C + 273.15.

2 Guaranteed but not tested.

3 Does not consider errors caused by heating due to dissipation of output load currents.

4 Maximum deviation between +25°C readings after temperature cycling between –55°C and +125°C.

5 Typical values indicate performance measured at T A = +25

6 Observed in a group sample over an accelerated life test of 500 hours at 150

Specifications subject to change without notice.

Test Load

V+

20pF

–2–

REV. C

NOTES

1 K =

TMP01

TMP01FJ–SPECIFICATIONS TO-99 Metal Can Package (V+ = +5 V, GND = O V, –40 8 C £ T A £ +85 8 C

unless otherwise noted)

Parameter

Symbol

Conditions

Min

Typ

Max

Units

INPUTS SET HIGH, SET LOW

Offset Voltage

V OS

0.25

Offset Voltage Drift

TCV OS

mV/°C

Input Bias Current, “F”

I B

100

OUTPUT VPTAT 1

Output Voltage

VPTAT

T A = +25

C, No Load

1.49

Scale Factor

TC VPTAT

mV/K

Temperature Accuracy, “F”

T A = +25

C, No Load

–3

1.0

Temperature Accuracy, “F”

10°C < T A < 40°C, No Load

± 1.5

°C

Temperature Accuracy, “F”

–40

C < T A < 85

C, No Load

–5.0

5.0

Temperature Accuracy, “F”

–55°C < T A < 125°C, No Load

± 2.5

°C

Repeatability Error

VPTAT Note 4

0.25

Degree

Long Term Drift Error

Notes 2 and 6

0.25

0.5

Degree

Power Supply Rejection Ratio

PSRR

T A = +25

C, 4.5 V

V+

13.2 V

0.02

0.1

%/V

OUTPUT VREF

Output Voltage, “F”

VREF

T A = +25°C, No Load

2.490 2.500

2.510

Output Voltage, “F”

VREF

–40

C < T A < 85

C, No Load

2.480 2.500

2.520

Output Voltage, “F”

VREF

–55°C < T A < 125°C, No Load

2.5 ± 0.015

Drift

TC VREF

–10

ppm/

Line Regulation

4.5 V £ V+ £ 13.2 V

± 0.01

± 0.05

%/V

Load Regulation

I VREF

500

0.1

0.25

%/mA

Output Current, Zero Hysteresis I VREF

Hysteresis Current Scale Factor

SF HYS

(Note 1)

5.0

Turn-On Settling Time

To Rated Accuracy

OPEN-COLLECTOR OUTPUTS OVER, UNDER

Output Low Voltage

V OL

I SINK = 1.6 mA

0.25

0.4

Output Low Voltage

V OL

I SINK = 20 mA

0.6

Output Leakage Current

I OH

V+ = 12 V

100

Fall Time

t HL

See Test Load, Note 2

POWER SUPPLY

Supply Range

V+

4.5

13.2

Supply Current

I SY

Unloaded, +V = 5 V

400

500

Supply Current

I SY

Unloaded, +V = 13.2 V

450

800

Power Dissipation

P DISS

+V = 5 V

2.0

2.5

C + 273.15.

2 Guaranteed but not tested.

3 Does not consider errors caused by heating due to dissipation of output load currents.

4 Maximum deviation between +25°C readings after temperature cycling between –55°C and +125°C.

5 Typical values indicate performance measured at T A = +25

6 Observed in a group sample over an accelerated life test of 500 hours at 150

Specifications subject to change without notice.

REV. C

–3–

NOTES

1 K =

TMP01

WAFER TEST LIMITS

Parameter

(V DD = +5.0 V, GND = 0 V, T A = +25

C, unless otherwise noted)

Symbol

Conditions

Min

Typ

Max

Units

INPUTS SET HIGH, SET LOW

Input Bias Current

I B

100

OUTPUT VPTAT

Temperature Accuracy

T A = +25°C, No Load

1.5

°C

OUTPUT VREF

Nominal Value

VREF

T A = +25°C, No Load

2.490

2.510

Line Regulation

4.5 V £ V+ £ 13.2 V

± 0.05

%/V

Load Regulation

10 mA £ I VREF £ 500 mA

± 0.25

%/mA

OPEN-COLLECTOR OUTPUTS OVER, UNDER

Output Low Voltage

V OL

I SINK = 1.6 mA

0.4

Output Low Voltage

V OL

I SINK = 20 mA

1.0

Output Leakage Current

I OH

100

POWER SUPPLY

Supply Range

V+

4.5

13.2

Supply Current

I SY

Unloaded

600

NOTES

Electrical tests are performed at wafer probe to the limits shown. Due to variations in assembly methods and normal yield loss, yield after packaging is not guaranteed

for standard product dice. Consult factory to negotiate specifications based on dice lot qualification through sample lot assembly and testing.

DICE CHARACTERISTICS

Die Size 0.078

0.071 inch, 5,538 sq. mils

(1.98 ´ 1.80 mm, 3.57 sq. mm)

Transistor Count: 105

1. VREF

2. SETHIGH

3. SETLOW

4. GND (TWO PLACES)

(CONNECTED TO SUBSTRATE)

5. VPTAT

6. UNDER

7. OVER

8. V+

For additional DICE ordering information, refer to databook.

–4–

REV. C

TMP01

ABSOLUTE MAXIMUM RATINGS

Maximum Supply Voltage . . . . . . . . . . . . . . . . –0.3 V to +15 V

Maximum Input Voltage

(SETHIGH, SETLOW) . . . . . . . . . –0.3 V to [(V+) +0.3 V]

Maximum Output Current (VREF, VPTAT) . . . . . . . . . 2 mA

Maximum Output Current (Open Collector Outputs) . . 50 mA

Maximum Output Voltage (Open Collector Outputs) . . . . 15 V

Operating Temperature Range . . . . . . . . . . . . –55°C to +150°C

Dice Junction Temperature . . . . . . . . . . . . . . . . . . . . . +150°C

Storage Temperature Range . . . . . . . . . . . . – 65°C to +150°C

Lead Temperature (Soldering, 60 sec) . . . . . . . . . . . . . +300°C

GENERAL DESCRIPTION

The TMP01 is a very 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. A low

drift voltage reference is available for setpoint programming.

The temperature sensor is basically a very accurately tempera-

ture compensated, bandgap-type voltage reference with a buff-

ered output voltage proportional to absolute temperature

(VPTAT), accurately trimmed to a scale factor of 5 mV/K. See

the Applications Information following.

The low drift 2.5 V reference output VREF is easily divided ex-

ternally with fixed resistors or potentiometers to accurately es-

tablish the programmed heat/cool setpoints, independent of

temperature. Alternatively, the setpoint voltages can be supplied

by other ground referenced voltage sources such as user-

programmed DACs or controllers. The high and low setpoint

voltages are compared to the temperature sensor voltage, thus

creating a two-temperature thermostat function. In addition,

the total output current of the reference (I VREF ) determines the

magnitude of the temperature hysteresis band. The open collec-

tor outputs of the comparators can be used to control a wide va-

riety of devices.

Package Type

q JA

q JC

Units

8-Pin Plastic DIP (P)

103 1

°C/W

8-Lead SOIC (S)

158 2

°C/W

8-Lead TO-99 Can (J)

150 1

°C/W

NOTES

q JA is specified for device in socket (worst case conditions).

q JA is specified for device mounted on PCB.

CAUTION

1. Stresses above those listed under “Absolute Maximum Rat-

ings” may cause permanent damage to the device. This is a

stress rating only and functional operation at or above this

specification is not implied. Exposure to the above maximum

rating conditions for extended periods may affect device

reliability.

2. 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 packag-

ing at all times until ready to use. Use proper antistatic han-

dling procedures.

3. Remove power before inserting or removing units from their

sockets.

HYSTERESIS

CURRENT

ENABLE

VREF

V+

CURRENT

MIRROR

I HYS

SET

HIGH

OVER

WINDOW

COMPARATOR

SET

LOW

UNDER

VOLTAGE

REFERENCE

AND

SENSOR

1k W

HYSTERESIS

VOLTAGE

ORDERING GUIDE

GND

VPTAT

TEMPERATURE

OUTPUT

Temperature Package

Package

Model/Grade

Range l

Description

Option

TMP01

TMP01EP

XIND

Plastic DIP

N-8

TMP01FP

XIND

Plastic DIP

N-8

Figure 1. Detailed Block Diagram

TMP01ES

XIND

SOIC

SO-8

TMP01FS

XIND

SOIC

SO-8

TMP01FJ 2

XIND

TO-99 Can

H-08A

TMP01GBC

+25

Die

2 Consult factory for availability of MIL/883 version in TO-99 can.

C to +85

REV. C

–5–

NOTES

1 XIND = –40

Plik z chomika:

Inne pliki z tego folderu:

Inne foldery tego chomika: