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TMP814 Datasheet(PDF) 2 Page - Texas Instruments

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Part # TMP814
Description  VARIABLE SPEED SINGLE-PHASE FULL-WAVE FAN MOTOR PRE-DRIVER
PDF  12 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TMP814 Datasheet(HTML) 2 Page - Texas Instruments

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0.47 µF
to 1 µF
V
CC
6VREG
ROFF
HB
IN+
IN–
RMI
CPWM
VLIM SENSE
SGND
OUT2P
OUT2N
OUT1P
OUT1N
RD
FG
Discharge Circuit
Discharge
Pulse
6VREG
Hall Bias
Hysteresis
Amplifier
Thermal Shutdown
Oscillator
Controller
CT
Hall
VTH
TRUTH TABLE
TMP814
SLDS151 – MAY 2009........................................................................................................................................................................................................ www.ti.com
BLOCK DIAGRAM
During full-speed rotation
IN–
IN+
CT
OUT1P
OUT1N
OUT2P
OUT2N
FG
RD
MODE
H
L
L
L
–
–
H
L
L
OUT1
→ 2 drive
L
H
–
H
L
–
OFF
OUT2
→ 1 drive
H
L
H
OFF
–
–
H
L
OFF
Lock protection
L
H
–
H
OFF
–
OFF
VTH
CPWM
IN–
IN+
OUT1P
OUT1N
OUT2P
OUT2N
MODE
H
L
L
–
–
H
OUT1
→ 2 Drive
L
H
L
H
–
H
L
–
OUT2
→ 1 Drive
H
L
OFF
–
–
H
During rotation,
H
L
regeneration in lower TR
L
H
–
H
OFF
–
2
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Copyright © 2009, Texas Instruments Incorporated
Product Folder Link(s): TMP814



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