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| TDA5145TS Datasheet, PDF (3/20 Pages) NXP Semiconductors – Brushless DC motor drive circuit | |||
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Philips Semiconductors
Brushless DC motor drive circuit
BLOCK DIAGRAM
Product speciï¬cation
TDA5145TS
handbook, full pagewidth
BRAKE
8
BRAKE
RESET
18
RESET
CAP-ST 14
START-UP
OSCILLATOR
13
CAP-DC
12
CAP-CD
ADAPTIVE
COMMUTATION
DELAY
3
TEST
THERMAL
PROTECTION
15
CAP-TI
TIMING
COMMUTATION
LOGIC
DIR 9
DIRECTION
CONTROL
VMOT
6, 7
PUSH/PULL
FLYBACK
DH
DL
OUTPUT
DRIVER
STAGE 1
1, 2
MOT1
OUTPUT DRIVER
STAGE 2
OUTPUT DRIVER
STAGE 3
4, 5
MOT2
20,
21
MOT3
TDA5145TS
10
GND2
23, 24 11
GND1
VP
EMF COMPARATORS
22
MOT0
MGR391
1998 Oct 27
Fig.1 Block diagram.
3
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