Datasheet

KTY81_SER_5 © NXP B.V. 2008. All rights reserved.
Product data sheet Rev. 05 — 25 April 2008 10 of 15
NXP Semiconductors
KTY81 series
Silicon temperature sensors
To keep the temperature error low, an operating current of I
sen(cont)
= 1 mA is recommended for temperatures above 100 °C
a. KTY81/1 series b. KTY81/2 series
Fig 1. Sensor resistance as a function of operating current
mgg699
2
1
3
R
(kΩ)
0
I
sen(cont)
(mA)
10
−1
101
150 °C
125 °C
100 °C
75 °C
50 °C
25 °C
0 °C
−25 °C
−50 °C
mgg700
2
3
1
4
5
R
(kΩ)
0
I
sen(cont)
(mA)
10
−1
101
150 °C
125 °C
100 °C
75 °C
50 °C
25 °C
0 °C
−25 °C
−50 °C
T
amb
=25°CT
amb
=25°C
a. KTY81/1 series b. KTY81/2 series
Fig 2. Deviation of sensor resistance as a function of operating current
mgg704
I
sen(cont)
(mA)
021
0
10
20
∆R
(Ω)
−10
mgg703
I
sen(cont)
(mA)
021
0
10
20
30
∆R
(Ω)
−10