SE95_7 © NXP B.V. 2009. All rights reserved.
Product data sheet Rev. 07 — 2 September 2009 16 of 27
NXP Semiconductors
SE95
Ultra high accuracy digital temperature sensor and thermal watchdog
11. Static characteristics
[1] Typical values are at V
CC
= 3.3 V and T
amb
=25°C.
[2] Assumes a minimum 11-bit temperature reading.
[3] The digital pins are pin SCL, SDA and A2 to A0.
[4] Device analog-to-digital conversion.
Table 17. Static characteristics
V
CC
= 2.8 V to 5.5 V, T
amb
=
−
55
°
C to +125
°
C; unless otherwise specified.
Symbol Parameter Conditions Min Typ
[1]
Max Unit
T
acc
temperature accuracy V
CC
= 2.8 V to 3.6 V
[2]
T
amb
= −25 °C to +100 °C −1.0 - +1.0 °C
T
amb
= −55 °C to +125 °C −2.0 - +2.0 °C
V
CC
= 3.6 V to 5.5 V
[2]
T
amb
= −25 °C to +100 °C −2- +2 °C
T
amb
= −55 °C to +125 °C −3- +3 °C
T
res
temperature resolution 11-bit digital temperature data - 0.125 - °C
t
conv(T)
temperature conversion time normal mode - 33 - ms
I
CC
supply current normal mode: I
2
C-bus inactive - 150 - µA
normal mode: I
2
C-bus active - - 1.0 mA
shutdown mode - 7.5 - µA
V
IH
HIGH-level input voltage digital pins
[3]
0.7V
CC
-V
CC
+ 0.3 V
V
IL
LOW-level input voltage digital pins
[3]
−0.3 - +0.3V
CC
V
V
I(hys)
hysteresis of input voltage pins SCL and SDA - 300 - mV
pins A2 to A0 - 300 - mV
I
IH
HIGH-level input current digital pins; V
IN
=V
CC
[3]
−1.0 - +1.0 µA
I
IL
LOW-level input current digital pins; V
IN
=0V
[3]
−1.0 - +1.0 µA
V
OL
LOW-level output voltage pins SDA and OS; I
OL
= 3 mA - - 0.4 V
I
OL
= 4 mA - - 0.8 V
I
LO
output leakage current pins SDA and OS; V
OH
=V
CC
--10 µA
V
POR
power-on reset voltage V
CC
supply below which the
logic is reset
1.0 - 2.5 V
OSQ OS fault queue programmable
[4]
1-6
T
os
overtemperature shutdown
threshold
default value - 80 - °C
f
sam
sampling rate programmable 0.125 10 30 sample/s
T
hyst
hysteresis temperature default value - 75 - °C
C
i
input capacitance digital pins - 20 - pF
