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TDF5242 Datasheet(PDF) 3 Page - NXP Semiconductors

Part # TDF5242
Description  Brushless DC motor drive circuit
PDF  20 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

TDF5242 Datasheet(HTML) 3 Page - NXP Semiconductors

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1997 Sep 12
3
Philips Semiconductors
Preliminary specification
Brushless DC motor drive circuit
TDF5242T
BLOCK DIAGRAM
Fig.1 Block diagram.
handbook, full pagewidth
MGG988
TRANS-
CONDUCTANCE
AMPLIFIER
START-UP
OSCILLATOR
ADAPTIVE
COMMUTATION
DELAY
ROTATION
SPEED
AND
DETECTOR
OUTPUT
STAGE
TIMING
COMMUTATION
LOGIC
THERMAL
PROTECTION
OUTPUT DRIVER
STAGE
OUTPUT DRIVER
STAGE
OUTPUT DRIVER
STAGE
OUTPUT DRIVER
STAGE
OUTPUT DRIVER
STAGE
EMF COMPARATORS
DIRECTION
LOGIC
TDF5242T
BRAKE
LOGIC
19
21
6
20
16
15
14
8
18
10
7
DIR
BRAKE
GND2 GND1
VP
911
3
26
24
23
22
5
4
2
1
28
27
13
MOT0
COMP-C
COMP-B
COMP-A
OUT-NC
OUT-PC
OUT-PB
OUT-NB
OUT-PA
OUT-NA
OUTPUT DRIVER STAGE
AMP OUT
VMOT
+AMP IN
−AMP IN
CAP-ST
CAP-DC
CAP-CD
TEST
CAP-TI
FG
n.c.
12, 17, 25



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