TelCom Semiconductor Inc TC03VNB, TC03VZB, TC02VZB, TC02VNB Datasheet

PRECISION TEMPERA TURE-

V

CC

V

CC

V

OUT

V

OUT

GND

GND

TC02VNB
TC03VNB

TC02VZB
TC03VZB

11223

3

PRELIMINARY INFORMATION

TO -VOL T AGE CONVERTERS

PRECISION TEMPERATURE-TO-VOL TAGE CONVERTERS

TC02

TC02
TC03

TC03

FEATURES

■ Linearized Temperature-to-Voltage Converters

■ Direct Centigrade Output Voltage Scaling (TC03)

■ Wide Temperature Measurement

Range (TC02) ............................... – 20°C to +125°C

■ Excellent Temperature Converter Linearity .. 0.8°C

Over Temperature

■ High Temperature Converter Accuracy..........±2°C

at 25°C Guaranteed

■ Small Packages ................TO-92-3 and SOT-23B-3

APPLICATIONS

■ Power Supply Thermal Shut-Down

■ Temperature-Controlled Fans

■ Temperature Measurement/Instrumentation

■ Temperature Regulators

■ Consumer Electronics

FUNCTIONAL BLOCK DIAGRAM

GENERAL DESCRIPTION

The TC02/03 temperature sensors furnish a linearized
output voltage directly proportional to measured tempera­ture. The TC03 has a temperature measurement range of
– 20°C to +100°C. Its output voltage is directly calibrated in
degrees Centigrade (i.e. V

= 10mV/°C x Temperature

OUT

°C). An external pull-down resistor to a negative voltage
source is required for temperature measurement below
0°C.

The TC02 has a temperature measurement range of
– 20°C to +125°C, and operates with a single supply. It has
the same output voltage slope with temperature as the
TC03 (10mV/°C). The output voltage range is 300mV at
– 20°C to 1,750mV at +125°C.

Small size, low cost and low power operation make the
TC02/03 suitable for a wide range of general purpose
temperature measurement applications.

ORDERING INFORMATION

Output
Voltage

Part No. Package At 25°C Temp. Range

TC02VNB *SOT-23B-3 750mV – 20°C to +125°C
TC02VZB TO-92 750mV – 20°C to +125°C
TC03VNB *SOT-23B-3 250mV – 20°C to +100°C
TC03VZB TO-92 250mV – 20°C to +100°C

NOTE: *SOT-23B-3 is equivalent to JEDEC (TO-236)

VCC = 2.2V to 12V

TC02/03-04 6/18/97

MICROCONTROLLER

V

CC

V

OUT

TC03

GND

TelCom Semiconductor reserves the right to make changes in the circuitry and specifications of its devices.

A/D

CONVERTER

1

PIN CONFIGURATION

.

*SOT-23B-3
(Top View)

NOTE: *SOT-23B-3 is equivalent

to JEDEC (TO-236)

TO-92-3

PRELIMINARY INFORMATION

TC02
TC03

PRECISION TEMPERATURE-

TO -VOL T AGE CONVERTERS

ABSOLUTE MAXIMUM RATINGS *

Supply Voltage ............................................................15V

Input Voltage, Any Terminal..............– 1.0 to (VCC +0.3V)

Operating Temperature (TC02).............– 20°C to +125°C

Operating Temperature (TC03).............– 20°C to +100°C

Storage Temperature ............................– 55°C to +150°C

Lead Temperature (Soldering, 10 sec)

* Static-sensitive device. Unused devices must be stored in conductive
material. Protect devices from static discharge and static fields. Stresses
above those listed under Absolute Maximum Ratings may cause perma­nent damage to the device. These are stress ratings only and functional
operation of the device at these or any other conditions above those
indicated in the operational sections of the specifications is not implied.
Exposure to Absolute Maximum Rating Conditions for extended periods
may affect device reliability.

SOT-23B-3 .....................................................+260°C

TO-92-3 .......................................................... +300°C

ELECTRICAL CHARACTERISTICS :

Symbol Parameter Test Conditions Min Typ Max Unit

V

CC

V

CC

I

S

I

SRC

A

V

V

OUTMAX

Supply Voltage (TC02) 3.0 — 12 V
Supply Voltage (TC03) 2.2 — 12 V
Supply Current Note 1 — 40 60 µA
V

Output Source Current — — 1.0 mA

OUT

Accuracy at Room Temperature
Accuracy at Minimum Temperature TC02: TA = – 20°C– 7± 0.5 +5 °C

Accuracy at Maximum Temperature TC02: TA = +125°C – 3 — +3 °C
(Note 2)

Nonlinearity Note 3, 4 – 0.8 — +0.8 °C
Line Regulation — 80 — µV/V
Average Slope of Output Voltage — 10 — mV/°C
Maximum Output Voltage

TA = – 20°C to +125°C, VCC = 5V ±5%,

TA = 25°C (Note 2) – 2 ± 0.5 +2 °C

TC03: T
(Note 2)

TC03: T

TC02: 3.0V ≤ VCC ≤ 12V
TC03: 2.2V ≤ VCC ≤ 12V
(Note 1)

= – 20°C– 7± 0.5 +5

A

= +100°C – 3 — +3

A

unless otherwise specified.

——V

– 1.2 V

CC

Notes: 1. V

2. Accuracy = Difference between calculated output voltage (10mV/°C x Device case temperature at specified temperature and power supply)

DETAILED DESCRIPTION

A plot of output voltage versus temperature for both the
TC02 and TC03 appears in Figure 1. The TC03 can be
used with single power supply to measure temperatures
from 0°C to 100°C. A pull-down resistor (R1 in Figure 2)
must be added from V
measuring temperatures less than 0°C. The value of the
resistor must be chosen to limit the maximum current
pulled from the output to the negative supply to

outputs open circuited.

OUT

and measured output voltage expressed in °C.

3. Nonlinearity = deviation of output voltage versus temperature from the best-fit straight line over the device rated temperature range.

4. Guaranteed by design.

OUTPUT STAGE

Both the TC02 and TC03 have Class A output stages
capable of sourcing 1mA. These devices have a limited
ability to drive heavy capacitive loads. Loads of 50pF (to
ground) can be driven directly. For heavier loads, a 2kΩ (or

to the negative power supply for

OUT

greater) resistor should be placed in series with the output
for decoupling. If the TC02/03 is used in a noisy electrical
environment, a 0.1µF bypass capacitor from VCC to GND is
recommended.

– 50µA (i.e. R1 = VSS/50µA).

TC02/03-04 6/18/97

2

PRECISION TEMPERA TURE­TO -VOL T AGE CONVERTERS

1.8

1.7

1.6

1.5

1.4

1.3

1.2

1.1

1.0

0.9

(VOLTS)

0.8

0.7

OUT

V

0.6

0.5

0.4

0.3

0.2

0.1
0

– 0.1
– 0.2

– 40

TC02: V
TC03: V

– 30 – 20

= (10mV/°C) (Temperature °C) + 500mV

OUT

= (10mV/°C) (Temperature °C)

OUT

TC02

–10

0

10

20

30

TC03

40

PRELIMINARY INFORMATION

50

60 70 80 90 100 110 120

TC02
TC03

130

TEMPERATURE (°C)

Figure 1. Output Voltage vs Temperature

= 2.2V to 12.0V MIN.

V

CC

V

CC

V

GND

OUT

R1

V

SS

TC03

TC03 (– 20°C to +100°C)

Figure 2. TC02/03 Power Supply Connections for Full Scale Measurements

V

OUT

R1 = VSS/50µA

V

CC

TC02 (– 20°C to +125°C)

= 3.0V to 12.0V

V

CC

V

OUT

TC02

GND

V

OUT

TC02/03-04 6/18/97

3

PRELIMINARY INFORMATION

TC02
TC03

TYPICAL CHARACTERISTICS

PRECISION TEMPERATURE-

TO -VOL T AGE CONVERTERS

SUPPLY CURRENT (µA)

100

80

60

40

20

10

125

100

75

50

Supply Current vs.

Temperature

VCC= +5V

–50

–25 0 25 50 75 100 125

TEMPERATURE (°C)

Thermal Response

in Still Air vs.Time

Thermal Time Constant

(Sec) vs. Air Velocity

60

50

40

30

20

10

THERMAL TIME (SEC)

0

0

AIR VELOCITY (FPM)

V

(From Power Initially Applied)

OUT

vs. Time (Turn-on Response)

2V/DIV

0V

400 600 800 1000200

25

PERCENT OF FINAL VALUE (%)

0

0

20

60 80 100

40

TIME (SEC.)

500mV/DIV

0V

20µsec/DIV

TC02/03-04 6/18/97

4

PRECISION TEMPERA TURE­TO -VOL T AGE CONVERTERS

MARKING

PRELIMINARY INFORMATION

TC02
TC03

SOT-23B-3

a & b = part number code and temperature range

TC02VNB = AA – 20°C to 125°C
TC03VNB = AB – 20°C to 100°C

ex: 02 = uuuu
ex: 03 = uuuu

A A

A B

c = year and quarter
d = lot ID

TAPING FORMS

TO-92-3

4

5

3

2

1

9

10

8

7

6

14

15

13

12

11

a & b = TC (fixed)
c, d & e = blank
f, g, h & i = part number
j = temperature range

C = – 20°C to +125°C

D = – 20°C to +100°C

k, l, m, n & o = traceability code

SOT-23B-3

PIN 1

PIN 1

Device

Marking

User Direction of Feed

Standard Reel Component Orientation
for 713 or TR Suffix Device
(Mark Right Side Up)

Marking

Device

Reverse Reel Component Orientation
for 723 or RT Suffix Device
(Mark Upside Down)

User Direction of Feed

P

Tape & Reel Specifications Table
Package Carrier Width (W) Pitch (P) Part Per Full Reel Reel Size

3L SOT-23B 8 mm 4 mm 3000 7

W

TC02/03-04 6/18/97

5

PRELIMINARY INFORMATION

TC02
TC03

TAPING FORMS (Cont.)

Mark
Face

M

ARK

F

ACE

Seal

Tape

PRECISION TEMPERATURE-

TO -VOL T AGE CONVERTERS

Component Taping Orientation for TO-92

User Direction of Feed

P

M

ARK

F

ACE

M

ARK

F

ACE

Back
Tape

Back
Tape

Mark
Face

Seal

Tape

WW

User Direction of Feed

P

M

ARK

F

ACE

M

ARK

F

ACE

M

ARK

F

ACE

Tape & Reel Specifications Table
Package Carrier Width (W) Pitch (P) Part Per Full Reel Reel Size

TO-92-3 18 mm 12.7 mm 2000 13

TC02/03-04 6/18/97

Standard Reel Component Orientation
for 713 or TR Suffix Device

Reverse Reel Component Orientation
for 723 or RT Suffix Device

6

PRECISION TEMPERA TURE­TO -VOL T AGE CONVERTERS

PACKAGE DIMENSIONS

PRELIMINARY INFORMATION

TC02
TC03

*SOT-23B-3

.021 (0.54)
.015 (0.37)

.103 (2.64)
.083 (2.10)

.040 (0.60)
.017 (0.44)

.120 (3.05)
.105 (2.67)

.040 (1.02)
.031 (0.79)

.004 (0.10)

.001(0.02)

*NOTE: SOT-23B-3 is equivalent to JEDEC (TO-236)

.210 (5.33)
.170 (4.32)

.080 (2.05)
.070 (1.78)

.500

(12.70)

MIN.

.055 (1.40)
.047 (1.20)

8° MAX.

TO-92-3

.007 (0.18)

.003 (0.085)

.010 (0.25)
.005 (0.13)

.165 (4.19)
.125 (3.18)

.105 (2.67)
.080 (2.03)

.205 (5.21)
.175 (4.45)

Sales Offices

TelCom Semiconductor

1300 Terra Bella Avenue
P.O. Box 7267
Mountain View, CA 94039-7267
TEL: [phone]
FAX: [phone]
E-Mail: [e-mail]

TC02/03-04 6/18/97

.018 (0.46)
.015 (0.38)

TelCom Semiconductor

Austin Product Center
9101 Burnet Rd. Suite 214
Austin, TX 78758
TEL: [phone]
FAX: [phone]

.055 (1.40)
.045 (1.14)

.105 (2.67)
.095 (2.41)

7

.135

(3.43)

MIN.

.018 (0.46)
.015 (0.38)

Dimensions: inches (mm)

TelCom Semiconductor H.K. Ltd.

10 Sam Chuk Street, Ground Floor
San Po Kong, Kowloon
Hong Kong
TEL: [phone]
FAX: [phone]

Printed in the U.S.A