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TDA5145TS Datasheet(PDF) 3 Page - NXP Semiconductors

Part No. TDA5145TS
Description  Brushless DC motor drive circuit
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
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 3 page
background image
1998 Oct 27
3
Philips Semiconductors
Product speciļ¬cation
Brushless DC motor drive circuit
TDA5145TS
BLOCK DIAGRAM
Fig.1 Block diagram.
handbook, full pagewidth
MGR391
START-UP
OSCILLATOR
PUSH/PULL
FLYBACK
OUTPUT
DRIVER
STAGE 1
1, 2
MOT1
818
6, 7
VMOT
4, 5
MOT2
ADAPTIVE
COMMUTATION
DELAY
COMMUTATION
LOGIC
TIMING
THERMAL
PROTECTION
DL
DH
OUTPUT DRIVER
STAGE 2
20,
21
MOT3
OUTPUT DRIVER
STAGE 3
EMF COMPARATORS
22
MOT0
RESET
RESET
BRAKE
BRAKE
10
11
GND2
23, 24
GND1
VP
15
CAP-TI
CAP-CD
3
TEST
12
CAP-DC
CAP-ST
13
14
DIRECTION
CONTROL
DIR
9
TDA5145TS




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