EMC1422-1-ACZL SMSC, EMC1422-1-ACZL Datasheet - Page 21
![no-image](/images/manufacturer_photos/0/6/617/smsc_sml.jpg)
EMC1422-1-ACZL
Manufacturer Part Number
EMC1422-1-ACZL
Description
Board Mount Temperature Sensors DUAL TEMP SNSR
Manufacturer
SMSC
Datasheet
1.EMC1422-1-ACZL-TR.pdf
(40 pages)
Specifications of EMC1422-1-ACZL
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
EMC1422-1-ACZL-TR
Manufacturer:
NSC
Quantity:
6 974
Part Number:
EMC1422-1-ACZL-TR
Manufacturer:
SMSC
Quantity:
20 000
1°C Temperature Sensor with Hardware Thermal Shutdown
Datasheet
SMSC EMC1422
5.10
90
80
70
60
50
40
30
20
10
0
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 5.6
the remote temperature diode, DN, is internally biased with a forward diode voltage referenced to
ground.
Temperature Monitors
V
BE
=
shows a block diagram of the temperature measurement circuit. The negative terminal for
2
η
kT
q
Figure 5.5 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 1.36 (07-02-09)
Level2
14
[1]