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Электронный компонент: TK11050MTL

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January 1999 TOKO, Inc.
Page 1
TK11050
VCONT
VCC
COMP IN
COMP OUT
VREF
GND
FEATURES
s
Internal Temperature Sensor, Voltage Reference
and Comparator
s
Temperature Threshold and Hysteresis Set by Only
Two External Resistors
s
Output Logic: Low to High with Increasing Temp.
s
Active High On/Off Control
s
2.7 to 6.0 V Supply Range
s
Miniature Package (SOT-23L-6)
s
Minimum External Parts Count
s
Low Power Consumption
s
Very Wide Temperature Range
BLOCK DIAGRAM
TK11050
DESCRIPTION
The TK11050 is an accurate temperature controller IC for
use over the -30 to +105
C temperature range. The
TK11050 monolithic bipolar integrated circuit contains a
temperature sensor, stable voltage reference and a
comparator, making the device very useful as an on/off
temperature controller. Two external resistors easily set
the sensing temperature threshold and hysteresis. Its wide
operating voltage range of 2.7 to 6.0 V makes this IC
suitable for a number of applications requiring accurate
temperature control. The device is in the "on" state when
the control pin is pulled to a logic high level.
The TK11050 is available in a miniature SOT-23L-6 surface
mount package.
01S
VREF
GND
VCONT
COMP OUT
VCC
ON/OFF
CIRCUIT
VOLTAGE
REFERENCE
+
-
TEMPERATURE
SENSOR
COMP IN
VPTAT
ORDERING INFORMATION
TAPE/REEL CODE
TL: Tape Left
Tape/Reel Code
TK11050MTL
APPLICATIONS
s
Home and Industrial Thermostats
s
Home Appliance Temperature Control
s
Notebook Computer Temperature Monitor
s
Pentium Processor Temperature Monitor
s
Power Supply Overtemperature Protection
s
Copy Machine Overtemperature Protection
s
System Overtemperature Protection
TEMPERATURE CONTROLLER IC
Page 2
January 1999 TOKO, Inc.
TK11050
ABSOLUTE MAXIMUM RATINGS
Supply Voltage ......................................................... 10 V
Power Dissipation (Note 1) ................................ 200 mW
Storage Temperature Range ................... -55 to +150
C
Operating Temperature Range ................. -30 to +105
C
Operating Voltage Range ................................. 2.7 to 6 V
Junction Temperature .......................................... 150
C
Lead Soldering Temperature (10 s) ..................... 235
C
TK11050 ELECTRICAL CHARACTERISTICS
Test conditions: T
A
= 25
C, V
CC
= 3.0 V, V
CONT
= 2.4 V, I
OUT
= 40
A, R
3
= 100 k
, unless otherwise specified.
Note 1: Power dissipation is 200 mW when in Free Air. Derate at 1.6 mW/
C for operation above 25
C.
Note 2: The resistance values of R
1
and R
2
can be calculated as follows: R
1
= V
ref
x T
SH
/ (T
SET
x I
SH
- (T
SET
-T
SH
) x I
IB
), R
2
= T
SET
x T
C
x R
1
/ (V
ref
-
R
1
x I
IB
- T
SET
x
T
C
).
I
IB
is 0.1
A and I
SH
is 1.25
A.
Note 3: When V
PTAT
< COMP IN, COMP OUT < 0.3 V (Low Level). When V
PTAT
> COMP IN, COMP OUT > 2.8 V (High Level).
Note 4: V
PTAT
does not have an output pin.
L
O
B
M
Y
S
R
E
T
E
M
A
R
A
P
S
N
O
I
T
I
D
N
O
C
T
S
E
T
N
I
M
P
Y
T
X
A
M
S
T
I
N
U
I
C
C
t
n
e
r
r
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C
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c
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u
Q
W
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t
u
p
t
u
O
r
o
t
a
r
a
p
m
o
C
0
5
2
0
5
3
A
H
G
I
H
t
u
p
t
u
O
r
o
t
a
r
a
p
m
o
C
0
1
2
0
5
3
A
I
Y
B
T
S
t
n
e
r
r
u
C
y
b
d
n
a
t
S
V
T
N
O
C
V
6
.
0
1
A
V
T
A
T
P
e
g
a
t
l
o
V
r
o
s
n
e
S
e
r
u
t
a
r
e
p
m
e
T
)
4
e
t
o
N
(
T
A
C
5
2
=
2
9
1
.
1
V
T
A
C
5
8
=
2
3
4
.
1
V
T
A
C
0
3
-
=
2
7
9
.
0
V
T
C
t
n
e
i
c
i
f
f
e
o
C
e
r
u
t
a
r
e
p
m
e
T
T
A
C
5
8
o
t
0
=
0
.
4
C
/
V
m
T
R
R
E
r
o
r
r
E
e
r
u
t
a
r
e
p
m
e
T
T
A
)
2
e
t
o
N
(
,
C
5
8
o
t
0
=
0
.
4
-
0
0
.
4
C
C
H
L
H
G
I
H
t
u
p
t
u
O
r
o
t
a
r
a
p
m
o
C
)
3
e
t
o
N
(
8
.
2
V
C
L
L
W
O
L
t
u
p
t
u
O
r
o
t
a
r
a
p
m
o
C
R
3
k
0
1
)
3
e
t
o
N
(
,
3
.
0
V
I
B
I
t
n
e
r
r
u
C
s
a
i
B
t
u
p
n
I
V
>
N
I
r
o
t
a
r
a
p
m
o
C
T
A
T
P
1
.
0
3
.
0
A
I
H
S
t
n
e
r
r
u
C
t
e
S
s
i
s
e
r
e
t
s
y
H
V
<
N
I
r
o
t
a
r
a
p
m
o
C
T
A
T
P
9
.
0
5
2
.
1
6
.
1
A
I
T
U
O
t
n
e
r
r
u
C
k
n
i
S
t
u
p
t
u
O
C
L
L
V
3
.
0
0
3
0
0
3
A
V
f
e
r
S
C
I
T
S
I
R
E
T
C
A
R
A
H
C
L
A
N
I
M
R
E
T
V
f
e
r
e
g
a
t
l
o
V
e
c
n
e
r
e
f
e
R
T
A
C
5
2
=
6
.
1
V
I
f
e
r
t
n
e
r
r
u
C
t
u
p
t
u
O
e
c
n
e
r
e
f
e
R
R
1
R
+
2
k
0
4
=
0
4
0
0
5
A
g
e
R
e
n
i
L
n
o
i
t
a
l
u
g
e
R
e
n
i
L
V
C
C
V
6
o
t
3
=
2
8
V
m
g
e
R
d
a
o
L
n
o
i
t
a
l
u
g
e
R
d
a
o
L
I
T
U
O
A
0
0
5
o
t
0
=
1
8
V
m
S
N
O
I
T
A
C
I
F
I
C
E
P
S
L
A
N
I
M
R
E
T
L
O
R
T
N
O
C
I
T
N
O
C
t
n
e
r
r
u
C
l
o
r
t
n
o
C
1
5
.
3
6
A
V
)
N
O
(
T
N
O
C
)
N
O
(
e
g
a
t
l
o
V
l
o
r
t
n
o
C
N
O
t
u
p
t
u
O
8
.
1
V
C
C
V
V
)
F
F
O
(
T
N
O
C
)
F
F
O
(
e
g
a
t
l
o
V
l
o
r
t
n
o
C
F
F
O
t
u
p
t
u
O
D
N
G
6
.
0
V
January 1999 TOKO, Inc.
Page 3
TK11050
ON/OFF
CIRCUIT
VOLTAGE
REFERENCE
+
-
TEMPERATURE
SENSOR
VPTAT
ICONT
VCONT
R1
R2
IIB
ISH
R1 + R2 = 40 k
VCC
ICC
R3
100 k
10 F
ISINK
COMP
OUT
COMP IN
Vref
GND
TYPICAL PERFORMANCE CHARACTERISTICS
T
A
= 25
C, V
CC
= 3 V, V
CONT
= 2.4 V, I
OUT
= 40
A, unless otherwise specified.
TEST CIRCUIT
V
ref

(V)
1.60
1.62
LINE REGULATION
VCC (V)
1.58
2 4 6 8 10
1.61
1.59
V
PTAT

(V)
1.2
1.6
REFERENCE VOLTAGE vs.
TEMPERATURE
TA (
C)
0.8
-40 0 40 80 120
1.4
1.0
I CONT
A)
2
4
CONTROL CURRENT vs.
CONTROL VOLTAGE
VCONT (V)
0
0 0.6 1.2 1.8 2.4
3
1
I CONT
A)
2
4
CONTROL CURRENT vs.
TEMPERATURE
TA (
C)
0
-40 0 40 80 120
3
1
V
ref

(V)
1.60
1.62
LOAD REGULATION
Iref (mA)
1.58
0 0.2 0.4 0.6 0.8
1.61
1.59
V
ref

(V)
1.60
1.62
REFERENCE VOLTAGE vs.
TEMPERATURE
TA (
C)
1.58
-40 0 40 80 120
1.61
1.59
Page 4
January 1999 TOKO, Inc.
TK11050
V
ref
(V)
1.0
2.0
CONTROL VOLTAGE RESPONSE A
TIME (ms)
0
0 2 4 6 8
1.5
0.5
VCONT = 0 TO 2.4 V
COUT = 0.1 F
V
ref
(V)
1.0
2.0
CONTROL VOLTAGE RESPONSE B
TIME (ms)
0
0 2 4 6 8
1.5
0.5
VCONT = 0 TO 2.4 V
COUT = 0 F
RR
(dB)
40
80
RIPPLE REJECTION RATIO A (Vref)
f (Hz)
0
10 100 1 k 10 k 100 k
60
20
VRR = 100 mVrms
COUT = 0.1 F
RR
(dB)
40
80
RIPPLE REJECTION RATIO B (Vref)
f (Hz)
0
10 100 1 k 10 k 100 k
60
20
VRR = 100 mVrms
COUT = 0 F
I B

(
n
A)
80
120
INPUT BIAS CURRENT vs.
TEMPERATURE
TA (
C)
40
-40 0 40 80 120
100
60
COMP IN > VPTAT
I SH

(
A)
1.2
1.4
HYSTERESIS SET CURRENT vs.
TEMPERATURE
TA (
C)
1.0
-40 0 40 80 120
1.3
1.1
COMP IN < VPTAT
I CC

(
A)
220
260
SUPPLY CURRENT vs.
TEMPERATURE
TA (
C)
180
-40 0 40 80 120
240
200
COMP OUT = LOW LEVEL
R1 + R2 = 40 k
R3 = 100 k
COMP OUT = HIGH LEVEL
I CC

(
A)
250
350
SUPPLY CURRENT vs.
SUPPLY VOLTAGE
VCC (V)
150
2 3 4 5 6
300
200
COMP OUT = HIGH LEVEL
R1 + R2 = 40 k
R3 = 100 k
COMP OUT = LOW LEVEL
V
ref

(V)
0.8
1.6
REFERENCE VOLTAGE vs.
CONTROL VOLTAGE
VCONT (V)
0
0 0.6 1.2 1.8 2.4
1.2
0.4
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
T
A
= 25
C, V
CC
= 3 V, V
CONT
= 2.4 V, I
OUT
= 40
A, unless otherwise specified.
January 1999 TOKO, Inc.
Page 5
TK11050
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
T
A
= 25
C, V
CC
= 3 V, V
CONT
= 2.4 V, I
OUT
= 40
A, unless otherwise specified.
I CC

(
A)
160
320
SUPPLY CURRENT vs.
CONTROL VOLTAGE
VCONT (V)
0
0 0.6 1.2 1.8 2.4
240
80
C
LL

(
m
V)
80
160
COMPARATOR OUTPUT (LOW LEVEL)
vs. OUTPUT SINK CURRENT
IOUT (mA)
0
0 0.2 0.4 0.6 0.8
120
40
COMP

OUT

(V)
2
4
COMPARATOR OUTPUT vs.
TEMPERATURE
TA (
C)
0
65 70 75 80 85
3
1
TSET = 80
C
TSH = 5
C
COMP OUT (V)
2
4
TEMPERATURE RESPONSE B
TIME (s)
0
0 5 10 15 20
3
1
TA = 25 TO 85 C
TSET = 80 C
COMP OUT (V)
2
4
TEMPERATURE RESPONSE C
TIME (s)
0
0 5 10 15 20
3
1
TA = 25 TO -30 C
TSET = -20 C
COMP OUT (V)
2
4
TEMPERATURE RESPONSE D
TIME (s)
0
0 5 10 15 20
3
1
TA = 25 TO -30 C
TSET = -25 C
COMP OUT (V)
2
4
CONTROL VOLTAGE RESPONSE
TIME (ms)
0
0 2 4 6 8
3
1
VCONT = 0 TO 2.4 V
COMP OUT (V)
2
4
COMPARATOR INPUT RESPONSE
TIME (ms)
0
0 0.2 0.4 0.6 0.8
3
1
COMP IN = 1.6 TO 0.8 V
COMP OUT (V)
2
4
TEMPERATURE RESPONSE A
TIME (s)
0
0 5 10 15 20
3
1
TA = 25 TO 85 C
TSET = 75 C