Moteur de recherche de fiches techniques de composants électroniques
  French  ▼
ALLDATASHEET.FR

X  

Preview PDF HTML

EMC2104 Fiches technique(PDF) 66 Page - SMSC Corporation

No de pièce EMC2104
Description  Dual RPM-Based PWM Fan Controller with Hardware Thermal Shutdown
PDF  101 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricant  SMSC [SMSC Corporation]
Site Internet  http://www.smsc.com
Logo SMSC - SMSC Corporation

EMC2104 Fiches technique(HTML) 66 Page - SMSC Corporation

Back Button EMC2104 Datasheet HTML 62Page - SMSC Corporation EMC2104 Datasheet HTML 63Page - SMSC Corporation EMC2104 Datasheet HTML 64Page - SMSC Corporation EMC2104 Datasheet HTML 65Page - SMSC Corporation EMC2104 Datasheet HTML 66Page - SMSC Corporation EMC2104 Datasheet HTML 67Page - SMSC Corporation EMC2104 Datasheet HTML 68Page - SMSC Corporation EMC2104 Datasheet HTML 69Page - SMSC Corporation EMC2104 Datasheet HTML 70Page - SMSC Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 66 / 101 page
background image
Dual RPM-Based PWM Fan Controller with Hardware Thermal Shutdown
Datasheet
Revision 1.74 (05-08-08)
66
SMSC EMC2104
DATASHEET
term that is applied to the Actual RPM to achieve the Reported RPM. It should only be applied if the
number of edges measured does not match the number of edges expected based on the number of
poles of the fan (which is fixed for any given fan).
Contact SMSC for recommended settings when using fans with more or less than 2 poles.
Bit 2-0 - UPDATE - determines the base time between fan driver updates. The Update Time, along
with the Fan Step Register, is used to control the ramp rate of the drive response to provide a cleaner
transition of the actual fan operation as the desired fan speed changes. The Update Time is set as
shown in Table 6.31.
Table 6.30 Minimum Edges for Fan Rotation
EDGES[1:0]
MINIMUM TACH
EDGES
NUMBER OF FAN POLES
EFFECTIVE TACH
MULTIPLIER (BASED ON 2
POLE FANS)
10
0
0
3
1 pole
0.5
0
1
5
2 poles (default)
1
1
0
7
3 poles
1.5
1
1
9
4 poles
2
Table 6.31 Update Time
UPDATE[2:0]
UPDATE TIME
21
0
00
0
100ms
00
1
200ms
01
0
300ms
0
1
1
400ms (default)
10
0
500ms
10
1
800ms
1
1
0
1200ms
1
1
1
1600ms



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  ...More


Fiches technique Télécharger

Go To PDF Page


Lien URL



ALLDATASHEET vous a-t-il été utile ?  [ DONATE ] 

À propos de Alldatasheet   |   Publicité   |   Contactez-nous   |   Politique de confidentialité   |   Lien vers la fiche technique    |   Echange de liens   |   Fabricants
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com