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TMP815 Datasheet(PDF) 2 Page - Texas Instruments

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Part # TMP815
Description  VARIABLE-SPEED SINGLE-PHASE FULL-WAVE FAN-MOTOR PRE-DRIVER
PDF  13 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TMP815 Datasheet(HTML) 2 Page - Texas Instruments

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0.47 µF
to 1 µF
V
CC
5VREG
IN+
IN–
S-S
CPWM
SENSE
SGND
OUT2P
OUT2N
OUT1P
OUT1N
FG
Discharge Circuit
Discharge
Pulse
5VREG
Thermal Shutdown
Oscillator
Controller
CT
Hall
VTH
RMI
DRIVE LOCK TRUTH TABLE
(1)
SPEED CONTROL TRUTH TABLE
(1)
TMP815
SLDS153 – MAY 2009........................................................................................................................................................................................................ www.ti.com
BLOCK DIAGRAM
CPWM = H, VTH = RMI = S-S = L
IN–
IN+
CT
OUT1P
OUT1N
OUT2P
OUT2N
FG
MODE
H
L
L
L
L
OFF
H
L
OUT1
→ 2 drive
L
H
L
OFF
H
L
L
OFF
OUT2
→ 1 drive
H
L
H
OFF
L
OFF
H
L
Lock protection
L
H
H
OFF
H
OFF
L
OFF
(1)
For VTH, RMI, and S-S pins, see Figure 2.
CT = S-S = L
VTH, RMI
CPWM
IN–
IN+
OUT1P
OUT1N
OUT2P
OUT2N
MODE
L
H
H
L
L
L
OFF
H
OUT1
→ 2 Drive
L
H
L
H
OFF
H
L
L
OUT2
→ 1 Drive
H
L
H
L
OFF
L
OFF
H
Regeneration mode
H
L
L
H
OFF
H
OFF
L
(1)
For VTH, RMI, and S-S pins, see Figure 2.
2
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Copyright © 2009, Texas Instruments Incorporated



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