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Speed Controller. TDA21801 Datasheet

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Speed Controller. TDA21801 Datasheet






TDA21801 Controller. Datasheet pdf. Equivalent




TDA21801 Controller. Datasheet pdf. Equivalent





Part

TDA21801

Description

Low Cost Fan Speed Controller



Feature


Version 2.11, May 2005 Datasheet DS-Fan Control-TDA21801 www.DataSheet4U.com T DA21801 Authors: E. Chang 1) G. Bernacc hia 2) N. Florio 2) R. Pittassi 2) G. C apodivacca 2) Published by Infineon Te chnologies AG http://www.infineon.com/d cdc 1) Villach, Infineon Technologies A ustria AG 2) Padova, Infineon Technolog ies Italia S.r.l. Power Management & D rive N e v e r s t.
Manufacture

Infineon Technologies

Datasheet
Download TDA21801 Datasheet


Infineon Technologies TDA21801

TDA21801; o p t h i n k i n g. FanControl Page 1 of 30 DS-FanControl-TDA21801 Conten ts: 1. Features ....................... ....................................... ....................................... ................. 4 2. Applications ... ....................................... ....................................... ................................ 4 3. P inout and Descript.


Infineon Technologies TDA21801

ion .................................... ....................................... ....................... 4 4. General De scription.............................. ....................................... ................................. 5 4.1 Block Diagram......................... ....................................... ....................................... .............. 7 w.


Infineon Technologies TDA21801

ww.DataSheet4U.com 4.1.1 External Compo nents Recommendation Values............ ....................................... ........ 7 4.2 Application Circuit..... ....................................... ....................................... ........................... 8 4.3 Absol ute Maximum Ratings.................... ....................................... ...................

Part

TDA21801

Description

Low Cost Fan Speed Controller



Feature


Version 2.11, May 2005 Datasheet DS-Fan Control-TDA21801 www.DataSheet4U.com T DA21801 Authors: E. Chang 1) G. Bernacc hia 2) N. Florio 2) R. Pittassi 2) G. C apodivacca 2) Published by Infineon Te chnologies AG http://www.infineon.com/d cdc 1) Villach, Infineon Technologies A ustria AG 2) Padova, Infineon Technolog ies Italia S.r.l. Power Management & D rive N e v e r s t.
Manufacture

Infineon Technologies

Datasheet
Download TDA21801 Datasheet




 TDA21801
Version 2.11, May 2005
Datasheet
DS-FanControl-TDA21801
www.DataSheet4U.com
TDA21801
Authors:
E. Chang 1)
G. Bernacchia 2)
N. Florio 2)
R. Pittassi 2)
G. Capodivacca 2)
Published by Infineon Technologies AG
http://www.infineon.com/dcdc
1) Villach, Infineon Technologies Austria AG
2) Padova, Infineon Technologies Italia S.r.l.
Power Management & Drive
FanControl
N e v e r s t o p t h i n k i n g.
Page 1 of 30
DS-FanControl-TDA21801




 TDA21801
Contents:
1. Features ...................................................................................................................... 4
2. Applications................................................................................................................. 4
3. Pinout and Description .................................................................................................. 4
4. General Description...................................................................................................... 5
www.DataSheet4U.com
4.1 Block Diagram..................................................................................................................... 7
4.1.1 External Components Recommendation Values........................................................... 7
4.2 Application Circuit.............................................................................................................. 8
4.3 Absolute Maximum Ratings............................................................................................... 9
4.4 Thermal Characteristic ....................................................................................................... 9
4.5 Operating Condition ......................................................................................................... 10
6 Application Information ................................................................................................ 11
6.1 Filter and Amplifier parameters ....................................................................................... 11
6.2 Oscillator parameters ....................................................................................................... 12
6.2.1 Electrical Characteristic 13
6.3 Digital Control parameters............................................................................................... 15
6.3.1 Function of the speed loop
15
6.4 Power Output Stage parameters ..................................................................................... 15
6.4.1 Electrical Characteristic – Power Output Stage 16
6.5 Speed Value Generation parameters .............................................................................. 17
6.6 NTC input .......................................................................................................................... 19
6.6.1 Electrical Characteristic - NTC 19
6.7 FCin Input.......................................................................................................................... 21
6.7.1 Electrical Characteristic - FCin 22
6.8 Under Voltage Lockout Block .......................................................................................... 23
6.8.1 Electrical Characteristic – Undervoltage Lockout 24
FanControl
Page 2 of 30
DS-FanControl-TDA21801




 TDA21801
6.8 FanM .................................................................................................................................. 25
6.8.1 Electrical Characteristic – FanM Signal 25
7. Outline Dimension: ..................................................................................................... 27
7.1 Footprint Drawing PG-DSO-8........................................................................................... 27
www.DataSheet4U.com
FanControl
Page 3 of 30
DS-FanControl-TDA21801



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