EMC1404 SMSC Corporation, EMC1404 Datasheet - Page 21
![no-image](/images/no-image-200.jpg)
EMC1404
Manufacturer Part Number
EMC1404
Description
(EMC1403 / EMC1404) Temperature Sensor
Manufacturer
SMSC Corporation
Datasheet
1.EMC1404.pdf
(42 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
EMC1404-1-AIZL-TR
Manufacturer:
SMSC
Quantity:
20 000
1°C Temperature Sensor with Beta Compensation
Datasheet
SMSC EMC1403/EMC1404
5.10
90
80
70
60
50
40
30
20
10
0
Temperature Monitors
0
Δ
In general, thermal diode temperature measurements are based on the change in forward bias voltage
of a diode when operated at two different currents. This ΔV
as shown in the following equation:
Figure 5.5
the remote temperature diode, DN, is internally biased with a forward diode voltage referenced to
ground.
V
BE
=
shows a block diagram of the temperature measurement circuit. The negative terminal for
2
η
kT
q
Figure 5.4 Temperature Filter Impulse Response
ln
Filter Impulse Response
⎛
⎜ ⎜
⎝
4
I
I
HIGH
LOW
Disabled
⎞
⎟ ⎟
⎠
DATASHEET
6
Samples
21
Level1
8
where:
k = Boltzmann’s constant
T = absolute temperature in Kelvin
q = electron charge
η
= diode ideality factor
BE
is proportional to absolute temperature
10
12
Revision 1.16 (03-15-07)
Level2
14
[1]