Texas Instruments TMP300, TMP300AIDCKTG4 Datasheet

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R

PULL-UP

210kW

(1)

R

SET

T

SET

OUT

V+

HYST

SET

V

TEMP

TMP300

3mA

Proportional
toT

A

NOTE:(1)Thinfilmresistorwithapproximately10%accuracy;
however,thisaccuracyerroristrimmedoutatthefactory.

1

2

3

6

5

4

V+

V

TEMP

HYST

SET

T

SET

GND

OUT

TMP300

SC70-6,SOT23-6

1.8V, Resistor-Programmable
TEMPERATURE SWITCH and

ANALOG OUT TEMPERATURE SENSOR in SC70

1

FEATURES

2

• ACCURACY: ± 1 ° C (typical at +25 ° C)

• PROGRAMMABLE TRIP POINT

• PROGRAMMABLE HYSTERESIS: 5 ° C/10 ° C

• OPEN-DRAIN OUTPUTS

• LOW-POWER: 110 μ A (max)

• WIDE VOLTAGE RANGE: +1.8V to +18V

• OPERATION: – 40 ° C to +150 ° C

• ANALOG OUT: 10mV/ ° C

• SC70-6 AND SOT23-6 PACKAGES

APPLICATIONS

• POWER-SUPPLY SYSTEMS

• DC-DC MODULES

• THERMAL MONITORING

• ELECTRONIC PROTECTION SYSTEMS

TMP300

SBOS335A – JUNE 2005 – REVISED SEPTEMBER 2007

DESCRIPTION

The TMP300 is a low-power, resistor-programmable,
digital output temperature switch. It allows a threshold
point to be set by adding an external resistor. Two
levels of hysteresis are available. The TMP300 has a
V
point or in temperature-compensation loops.

The TMP300 detects temperature with ± 4 ° C accuracy
(max) over – 40 ° C to +125 ° C.

With a supply voltage as low as 1.8V and low current
consumption, the TMP300 is ideal for power-sensitive
systems.

Available in two micropackages that have proven
thermal characteristics, this part gives a complete and
simple solution for users who need simple and
reliable thermal management.

analog output that can be used as a testing

TEMP

1

2 All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.

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.

Copyright © 2005 – 2007, Texas Instruments Incorporated

www.ti.com

TMP300

SBOS335A – JUNE 2005 – REVISED SEPTEMBER 2007

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.

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.

ORDERING INFORMATION

(1)

PRODUCT PACKAGE-LEAD PACKAGE DESIGNATOR PACKAGE MARKING

TMP300 SC70-6 DCK BPN
TMP300 SOT23-6

(2)

DBV T300

(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 .

(2) Available 4Q, 2007.

ABSOLUTE MAXIMUM RATINGS

(1)

VALUE UNIT

Supply Voltage (V+) +18 V
Signal Input Terminals, Voltage
Signal Input Terminals, Current
Output Short-Circuit (ISC)

(2)
(2)

(3)

– 0.5 to (V+) + 0.5 V

± 10 mA

Continuous
Open-Drain Output (V+) + 0.5 V
Operating Temperature – 40 to +150 ° C
Storage Temperature – 55 to +150 ° C
Junction Temperature (TJ) +150 ° C

ESD Rating

Human Body Model (HBM) 4000 V
Charged Device Model (CDM) 1000 V

(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 terminals are diode-clamped to the power-supply rails. Input signals that can swing more than 0.5V beyond the supply rails should

be current limited to 10mA or less.

(3) Short-circuit to ground.

2 Submit Documentation Feedback Copyright © 2005 – 2007, Texas Instruments Incorporated

Product Folder Link(s): TMP300

www.ti.com

TMP300

SBOS335A – JUNE 2005 – REVISED SEPTEMBER 2007

ELECTRICAL CHARACTERISTICS

At VS= 3.3V and TA= – 40 ° C to +125 ° C, unless otherwise noted.

TMP300

PARAMETER TEST CONDITIONS MIN

(1)

TEMPERATURE MEASUREMENT

Measurement Range VS= 2.35V to 18V – 40 +125 ° C

VS= 1.8V to 2.35V – 40 100(V

TRIP POINT

Total Accuracy TA= – 40 ° C to +125 ° C ± 2 ± 4 ° C
R

Equation TCis in ° C R

SET

SET

HYSTERESIS SET INPUT

LOW Threshold 0.4 V
HIGH Threshold VS– 0.4 V
Threshold Hysteresis HYST

HYST

= GND 5 ° C

SET

= V

SET

S

DIGITAL OUTPUT

Logic Family CMOS
Open-Drain Leakage Current OUT = V

S

Logic Levels

V

OL

VS= 1.8V to 18V, I

= 5mA 0.3 V

SINK

ANALOG OUTPUT

Accuracy ± 2 ± 3 ° C
Temperature Sensitivity 10 mV/ ° C
Output Voltage TA= +25 ° C 720 750 780 mV
V

Pin Output Resistance 210 k Ω

TEMP

POWER SUPPLY

Quiescent Current

(2)

I

Q

VS= 1.8V to 18V,

TA= – 40 ° C to +125 ° C

TEMPERATURE RANGE

Specified Range VS= 2.35V to 18V – 40 +125 ° C

VS= 1.8V to 2.35V – 40 100(V

Operating Range VS= 2.35V to 18V – 40 +150 ° C

VS= 1.8V to 2.35V – 50 100(V

Thermal Resistance, θ

JA

SC70 250 ° C/W
SOT23-6

(3)

(1) 100% of production is tested at TA= +85 ° C. Specifications over temperature range are ensured by design.
(2) See Figure 1 for typical quiescent current.
(3) Available Q4, 2007.

(1)

TYP

MAX

– 0.95) ° C

S

(1)

= 10 (50 + TC)/3 k Ω

10 ° C

10 μ A

110 μ A

– 0.95) ° C

S

– 0.95) ° C

S

180 ° C/W

UNIT

Copyright © 2005 – 2007, Texas Instruments Incorporated Submit Documentation Feedback 3

Product Folder Link(s): TMP300

www.ti.com

-40 -25 0

95

85

45

25 50 75 100 125

Temperature( C)°

I ( A)m

Q

75

55

65

V =18V

S

V =3.3V

S

V =1.8V

S

-40 -25 0

2.0

1.5

1.0

0.5

0

-0.5

-1.0

-1.5

-2.0

25 50 75 100 125

Temperature( C)°

Error( C)°

T +1%

ERROR

T

ERROR

- 1%

T +0.1%

ERROR

T

ERROR

- 0.1%

-40 -25 0

700

600

500

400

300

200

100

0

25 50 75 100 125

Temperature(°C)

R

(k

)

W

SET

-40 -25 0

4.0

-4.0
25 50 75 100 125

Temperature( C)°

Error(

C)°

2.0

-1.0

1.0

0

-2.0

-3.0

3.0

-40 -25 0

3.0

2.0

-3.0
25 50 75 100 125

Temperature( C)°

Error(

C)°

1.5

-2.0

1.0

-2.5

2.5

0.5

0

-0.5

-1.0

-1.5

-40 -25 0

0.10

0.08

-0.02

0

-0.04

-0.06

-0.08

-0.10

25 50 75 100 125

Temperature(°C)

Error

( C/V)°

0.06

0.04

0.02

T is+85 CforV°

MAX S

=1.8Vto3.3V

3.3Vto18V

TMP300

SBOS335A – JUNE 2005 – REVISED SEPTEMBER 2007

TYPICAL CHARACTERISTICS

At VS= 5V, unless otherwise noted.

QUIESCENT CURRENT OVER TEMPERATURE AND

SUPPLY R

Figure 1. Figure 2.

R

vs TEMPERATURE TYPICAL TRIP ERROR

SET

SHIFT DUE TO R

SET

TOLERANCE

SET

Figure 3. Figure 4.

TYPICAL ANALOG OUTPUT ERROR ANALOG PSR OVER TEMPERATURE

Figure 5. Figure 6.

4 Submit Documentation Feedback Copyright © 2005 – 2007, Texas Instruments Incorporated

Product Folder Link(s): TMP300

www.ti.com

-40 -25 0

0.10

0.08

-0.02

0

-0.04

-0.06

-0.08

-0.10

25 50 75 100 125

Temperature(°C)

Error

( C/V)°

0.06

0.04

0.02

3.3Vto18V

T is+85 CforV°

MAX S

=1.8Vto3.3V

At VS= 5V, unless otherwise noted.

TMP300

SBOS335A – JUNE 2005 – REVISED SEPTEMBER 2007

TYPICAL CHARACTERISTICS (continued)

TRIP PSR OVER TEMPERATURE

Figure 7.

Copyright © 2005 – 2007, Texas Instruments Incorporated Submit Documentation Feedback 5

Product Folder Link(s): TMP300