Datasheet TK11070MTL Datasheet (TOKO)

TK11070

01S

NEGATIVE SLOPE TEMPERATURE SENSOR IC

FEATURES

■ Linear Output Voltage -8 mV/°C Output

■ Active High On/Off Control

■ 2.7 to 10.0 V Supply Range

■ Miniature Package (SOT-23-5)

■ Minimum External Parts Count

■ Low Power Consumption

DESCRIPTION

The TK11070 is a temperature sensor IC with a linear negative slope output of -8 mV/°C over the range of -30 to + 105 °C. Its wide operating voltage range of 2.7 to

10.0 V makes it suitable for a number of applications requiring accurate temperature control, such as electronic thermostats for climate control, refrigerators, and industrial process controls. The device is in the “on” state when the control pin is pulled to a logic high level. In the ”off” state, the standby current is 1 µA maximum.

APPLICATIONS

■ Home and Industrial Thermostats

■ Automotive Climate Control

■ Battery Charger Temperature Monitor

■ Notebook Computer Temperature Monitor

■ Electronic Thermometers

■ Fish Finder Water Temperature

■ Industrial Process Controllers

■ Home Appliance Temperature Control

■ Liquid Crystal Panel Contrast Adjustment

TK11070

V

CC

HS

CONTROL

V

OUT

GND

A typical application is to make a digital representation of temperature with an A/D converter, or to make a thermal detector with a comparator.

The TK11070 has a compensation pin for a 0.1 µF capacitor that ensures stability over the IC's operating temperature range.

The TK11070 is available in a miniature SOT-23-5 surface mount package.

ORDERING INFORMATION

TK11070M

Tape/Reel Code

TAPE/REEL CODE

TL: Tape Left

CONTROL

GND

Note: Pin 2 must connect to GND

BLOCK DIAGRAM

ON/OFF CIRCUIT

TEMPERATURE

DETECTION

CIRCUIT

V

CC

V

CC

+

-

V

OUT

HS

January 1999 TOKO, Inc. Page 1

TK11070

ABSOLUTE MAXIMUM RATINGS

Supply Voltage ......................................................... 12 V

Operating Voltage ....................................... 2.7 to 10.0 V

Power Dissipation (Note 1) ................................ 150 mW

Junction Temperature ........................................... 150 °C

TK11070 ELECTRICAL CHARACTERISTICS

Test Conditions: V

LOBMYSRETEMARAPSNOITIDNOCTSETNIMPYTXAMSTINU

CC =

3.0 V, V

CONT

= 2.4 V, I

= 0 µA, TA = 25 °C, unless otherwise specified.

OUT

Storage Temperature Range ................... -55 to +150 °C

Operating Temperature Range .................-30 to +105 °C

Lead Soldering Temperature (10 s) ...................... 235 °C

T

A

V

TUO

T

C

egatloVtuptuO

geReniLnoitalugeReniLV

geRdaoLnoitalugeRdaoLI

I

CC

I

TUO

I

YBTS

tnerruCylppuSV tnerruCtuptuO

tnerruCylppuSybdnatSV

T

A

T

A

tneiciffeoCerutarepmeTT

A

CC

TUO

∆V

C°03-=044.2V C°52-=089.1000.2020.2V C°58=294.1025.1845.1V

C°58ot52=5.8-0.8-5.7-C°/Vm

V01ot3=4-28Vm

Aµ01±otAµ0=8-08Vm

TNOC

TUO

TNOC

V4.2=57001Aµ

≤ Vm02

001-01Aµ

≤ V6.01Aµ

SNOITACIFICEPSLANIMRETLORTNOC

I

TNOC

V V

Note 1: Power dissipation is 150 mW when mounted as recommended. Derate at 1.2 mW/°C for operation above 25 °C.

)NO(TNOC

)FFO(TNOC

tnerruClortnoC0.25.30.6Aµ

)NO(egatloVlortnoCV

)FFO(egatloVlortnoCV

TUO

FFOtuptuO,V1.0<DNG6.0V

NOtuptuO,V20.2ot89.1=8.14.2VCCV

Page 2 January 1999 TOKO, Inc.

TEST CIRCUIT

V

(V)

I

(

A)

I

(

A)

V

(

V)

V

(

V)

TK11070

OUT

3.0

2.5

2.0

1.5

TYPICAL PERFORMANCE CHARACTERISTICS

VCC = 3 V, V

OUTPUT VOLTAGE vs.

TEMPERATURE

V

CC

I

+

V

CONT

CC

10 µF

CONT

I

CONT

CONTROL

V

CC

GND

= 2.4 V, I

( C)

ERR

T

Note: Output Voltage: V where TA is in °C

Linearity Error: V

V

OUT

C

OUT

HS

= 0 µA, TA = 25 °C, unless otherwise specified.

OUT

0.1 µF

T

I

OUTVOUT

LINEARITY ERROR vs.

TEMPERATURE

2

1

0

100

80

µ

60

CC

-1

40

= 2.2 V + (-8 mV/°C) x T

OUT(TYP)

= V

- V

OUT

/ (-8 mV/°C)

ERR

INPUT CURRENT vs.

TEMPERATURE

A

OUT(TYP)

µ

1.0

-40 0 40 80 120 TA (°C)

INPUT CURRENT vs.

INPUT VOLTAGE

100

80

60

CC

40

20

2 4 6 8 10

VCC (V)

m

ERR

-2

-40 0 40 80 120 TA (°C)

LINE REGULATION

20

10

0

-10

-20 2 4 6 8 10

VCC (V)

20

-40 0 40 80 120 TA (°C)

LOAD REGULATION

40

20

m

0

ERR

-20

-40

-40 -20 0 20 40 I

OUT

(µA)

January 1999 TOKO, Inc. Page 3

TK11070

V

(V)

I

(

A)

I

(

A)

I

(

A)

V

(V)

V

(V)

RR

(dB)

TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)

VCC = 3 V, V

CONT

= 2.4 V, I

= 0 µA, TA = 25 °C, unless otherwise specified.

OUT

2.0

1.5

1.0

OUT

0.5

µ

CONT

OUTPUT VOLTAGE vs.

CONTROL VOLTAGE

0

0 0.6 1.2 1.8 2.4

V

CONT

CONTROL CURRENT vs.

CONTROL VOLTAGE

4

3

2

1

(V)

INPUT CURRENT vs.

CONTROL VOLTAGE

80

60

µ

40

CC

20

0

0 0.6 1.2 1.8 2.4

V

(V)

CONT

CONTROL VOLTAGE RESPONSE A

2.0

OUT

1.5

1.0

0.5

C

OUT

= 0.1 µF

CONTROL CURRENT vs.

TEMPERATURE

4

3

µ

2

CONT

1

0

-40 0 40 80 120 TA (°C)

CONTROL VOLTAGE RESPONSE B

2.0

OUT

1.5

1.0

0.5

C

OUT

= 0 µF

0

0 0.6 1.2 1.8 2.4

V

(V)

CONT

RIPPLE REJECTION RATIO A

80

60

40

20

Vrr = 100 mVrms

0

10 100 1 k 10 k 100 k

C

f (Hz)

OUT

= 0.1 µF

0

80

60

40

RR (dB)

20

0

0 2 4 6 8

TIME (ms)

RIPPLE REJECTION RATIO B

C

= 0 µF

OUT

Vrr = 100 mVrms

10 100 1 k 10 k 100 k

f (Hz)

(V)

OUT

V

0

0 10 20 30 40

TIME (ms)

TEMPERATURE RESPONSE A

2.2

2.0

1.8

1.6

1.4

0 20 40 60 80

25 TO 85 °C

TIME (s)

Page 4 January 1999 TOKO, Inc.

V

(V)

TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)

VCC = 3 V, V

TEMPERATURE RESPONSE B

2.6

2.4

CONT

= 2.4 V, I

= 0 µA, TA = 25 °C, unless otherwise specified.

OUT

TK11070

OUT

2.2

2.0

1.8 0 20 40 60 80

25 TO -30 °C

TIME (s)

January 1999 TOKO, Inc. Page 5

TK11070

PACKAGE OUTLINE

SOT-26 (SOT-23-6)

1

23

e

2.9

Marking Information

0.7

Marking

45

(0.6)

1.6

(0.6)

+0.15

- 0.05

0.4

0.950.95

1.3 max

+0.1

1.0

2.4

e1

e e

Recommended Mount Pad

0.1

M

1.1

(0.8)

0.95

1.90

e'

Marking TK11070 70C

+0.15

0.1

Dimensions are shown in millimeters Tolerance: x.x = ± 0.2 mm (unless otherwise specified)

0 - 0.1

- 0.05

0.15

± 0.3

2.8 0 - 15 max

Toko America, Inc. Headquarters 1250 Feehanville Drive, Mount Prospect, Illinois 60056 Tel: (847) 297-0070 Fax: (847) 699-7864

TOKO AMERICA REGIONAL OFFICES

Midwest Regional Office Toko America, Inc. 1250 Feehanville Drive Mount Prospect, IL 60056 Tel: (847) 297-0070 Fax: (847) 699-7864

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Semiconductor Technical Support Toko Design Center 4755 Forge Road Colorado Springs, CO 80907 Tel: (719) 528-2200 Fax: (719) 528-2375

Visit our Internet site at http://www.tokoam.com

The information furnished by TOKO, Inc. is believed to be accurate and reliable. However, TOKO reserves the right to make changes or improvements in the design, specification or manufacture of its products without further notice. TOKO does not assume any liability arising from the application or use of any product or circuit described herein, nor for any infringements of patents or other rights of third parties which may result from the use of its products. No license is granted by implication or otherwise under any patent or patent rights of TOKO, Inc.

Page 6 January 1999 TOKO, Inc.

IC-xxx-TK11070

0798O0.0K

Printed in the USA