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MAX6613MXK+TG103

P1-P3P4-P6
MAX6613
Detailed Description
The MAX6613 analog output temperature sensor’s out-
put voltage is a discrete function of its die temperature.
The maximum supply current is 13µA, and the supply
voltage range is from 2.5V to 5.5V for the -55°C to
+130°C temperature range, or 1.8V to 5.5V for the
+25°C to +130°C temperature range.
Transfer Function
The temperature-to-voltage transfer function is approxi-
mately linear and can be described by the quadratic
equation:
V
OUT
= -0.0000022
✕
T
2
- 0.01105
✕
T + 1.8455V
In many cases, a linear approximation can be applied:
V
OUT
= -0.01123
✕
T + 1.8455V
where T is the die temperature of the MAX6613 in °C.
Therefore:
T = (1.8455 - V
OUT
) / 0.01123V
Compatibility with Other Temperature
Sensors
The MAX6613 can be used to replace temperature sen-
sors using other output algorithms. Table 1 provides
information for a linear and quadratic output equation.
Contact the factory for performance information about
another equation.
Low-Voltage Analog Temperature
Sensor in an SC70 Package
4 _______________________________________________________________________________________
Table 1. Linear and Quadratic Output Equation
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
V
CC
= 2.7V, T
A
= -55°C 0.6 7.9
V
CC
= 2.7V, T
A
= -20°C -0.4 +5.8
V
CC
= 2.7V, T
A
= 0°C -0.9 +4.5
V
CC
= 2.7V, T
A
= +50°C -2.6 +3.0
V
CC
= 2.7V, T
A
= +85°C -3.6 +3.5
V
CC
= 2.7V, T
A
= +100°C -4.0 +3.7
V
CC
= 2.7V, T
A
= +125°C -4.8 +4.2
Temperature Error
Based on:
OUT = 1.8639 - 0.0115 x Temp
(Note 4)
V
CC
= 2.7V, T
A
= +130°C -5.1 +4.2
°C
V
CC
= 2.7V, T
A
= -55°C -0.4 +6.9
V
CC
= 2.7V, T
A
= -20°C -0.6 +5.7
V
CC
= 2.7V, T
A
= 0°C -0.9 +4.5
V
CC
= 2.7V, T
A
= +50°C -3.5 +2.1
V
CC
= 2.7V, T
A
= +85°C -6.1 +1.0
V
CC
= 2.7V, T
A
= +100°C -7.4 +0.4
V
CC
= 2.7V, T
A
= +125°C -10.1 -1.0
Temperature Error
Based on:
OUT = 1.8639 - 0.0115 x Temp -
0.00000388 x Temp
2
(Note 4)
V
CC
= 2.7V, T
A
= +130°C -10.8 -1.5
°C
Applications Information
Sensing Circuit Board and
Ambient Temperature
A temperature sensor IC like the MAX6613 that senses
its own die temperature must be mounted on, or close
to, the object whose temperature it is intended to mea-
sure. Because there is a good thermal path between
the package’s metal lead and the IC die, the MAX6613
can accurately measure the temperature of the circuit
board to which it is soldered. If the sensor is intended
to measure the temperature of a heat-generating com-
ponent on the circuit board, it should be mounted as
close as possible to that component and should share
supply and ground traces (if they are not noisy) with
that component where possible. This optimizes the
thermal connection from the component to the sensor.
The thermal path between the plastic package and the
die is not as good as the path through the lead, so the
MAX6613, like all temperature sensors in plastic pack-
ages, is less sensitive to the temperature of the sur-
rounding air than to the temperature of its leads. It can
be successfully used to sense ambient temperature if
the circuit board is designed to track the ambient tem-
perature.
As with any IC, the wiring and circuits must be kept
insulated and dry to avoid leakage and corrosion,
especially if the part is operated at cold temperatures
where condensation can occur.
The change in die temperature introduced by the part
due to self-heating is negligible.
Chip Information
PROCESS: BiCMOS
Package Information
For the latest package outline information and land patterns,
go to www.maxim-ic.com/packages
. Note that a “+”, “#”, or
“-” in the package code indicates RoHS status only. Package
drawings may show a different suffix character, but the drawing
pertains to the package regardless of RoHS status.
MAX6613
Low-Voltage Analog Temperature
Sensor in an SC70 Package
_______________________________________________________________________________________ 5
PACKAGE
TYPE
PACKAGE
CODE
OUTLINE
NO.
LAND
PATTERN NO.
5 SC70 X5+1
21-0076 90-0188
MAX6613
Low-Voltage Analog Temperature
Sensor in an SC70 Package
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
6
_____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2010 Maxim Integrated Products Maxim is a registered trademark of Maxim Integrated Products, Inc.
Revision History
REVISION
NUMBER
REVISION
DATE
DESCRIPTION
PAGES
CHANGED
0 5/02 Initial release —
1 11/03 Fix error in equation 4
2 1/06 Update spec in table 2
3 12/10 Add lead-free and automotive part, style edits 1, 2, 3, 5, 6
P1-P3P4-P6

MAX6613MXK+TG103

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Manufacturer:
Maxim Integrated
Description:
Board Mount Temperature Sensors Low-Voltage Analog Temperature Sensor in SC70 Package
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