MITSUMI
Analog voltage output temperature sensor MM1522XU/XN
Analog voltage output temperature sensor
Monolithic IC MM1522XU/XN
Outline
This is a temperature sensor IC that can obtain +10mV/C linear output voltage relative to temperature
change.
Features
1. Temperature sensitivity
10mV/C
2. Output voltage precision
+3C max.
3. Consumption current
70A typ.
4. Operating power voltage range
+2.7~+10.0V
5. Operating temperature range
-40~+125C
Package
SC-82ABB (MM1522XU)
SOT-25A (MM1522XN)
Applications
1. CPU heat protection
2. Battery charger heat protection
3. Cellular phones
Pin Description
Absolute Maximum Ratings
(Ta=25C)
Item
Symbol
Rating
Unit
Storage temperature
T
STG
-55~+150
C
Operating temperature
T
OPR
-40~+125
C
Supply voltage
V
CC
max.
+13
V
Allowable loss
Pd
154 (SC-82ABB)
mW
188 (SOT-25A)
Pin No.
Pin Name
Function
1
N.C
2
GND
GND PIN
3
V
CC
V
CC
PIN
4
V
OUT
Output PIN
Pin No.
Pin Name
Function
1,3
N.C
2
GND
GND PIN
4
V
CC
V
CC
PIN
5
V
OUT
Output PIN
SC-82ABB
SOT-25A
MITSUMI
Analog voltage output temperature sensor MM1522XU/XN
Electrical Characteristics
(Except where noted otherwise, V
CC
=3V, Ta=-25~+100C, I
OUT
=0A)
Item
Symbol
Measurement Conditions
Min. Typ. Max. Unit
Accuracy
Ac
Ta=-25~+100C
3
*
1
C
Current consumption
I
CC
V
CC
=+2.7~+10V
70
110
A
Ta=-25C
0.24
0.27
0.30
V
Output voltage
*
2
V
OUT
Ta=+30C
0.79
0.82
0.85
V
Ta=+100C
1.49
1.52
1.55
V
Temperature sensitivity
*
3
V
SE
10
*
1
mV/C
Nonlinearity
*
4
NL
0.8
*
1
C
Line regulation
LineReg
Ta=+30C V
CC
=+2.7~+10V
0
1.0 mV/V
Load regulation
LoadReg
Ta=+30C I
OUT
=0~400A
0
1
V/A
Temperature sensitivity of
current consumption
I
SE
Ta=-40~+125C
0.2
*
1
A/C
Note:
*
1 Design assurance value
Note:
*
2 Output voltage: V
OUT
Terminal voltage at the time of Ta=-25C,
30C and 100C.
Note:
*
3 Temperature Sensitivity: V
SE
Temperature coefficient of output voltage
calculated from output voltage at the time of
Ta=-25C and +100C.
V
SE
=(V
OUT
(100C)-V
OUT
(-25C))/125
Output voltage
max.
min.
-25C
30C
100C
Temperature
Output voltage
V
OUT
(+100C)
V
OUT
(-25C)
Slope: Temperature
sensitivity
-25C
100C
Temperature
MITSUMI
Analog voltage output temperature sensor MM1522XU/XN
Note:
*
4 Nonlinearity: NL
Characteristic curve of output voltage and
deflection with the approximation straight line.
In temperature range from -25 to +100C,
the approximation straight line and the
maximum deflection of the temperature of
the measurement value among output
voltages obtained from the approximation
straight line. It assumes the approximation
straight line to be a straight line to which a
is minimized.
-25C
30C
100C
Temperature
Output voltage
Approximated
straight line
a
a
a
measurement value
Block Diagram
MM1522XU
MM1522XN
MITSUMI
Analog voltage output temperature sensor MM1522XU/XN
Application Circuits
Measuring Circuit
Thermal watch of Microprocessor
Thermal watch of Battery Cell
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