TDF5242 Ver la hoja de datos (PDF) - Philips Electronics
Número de pieza
componentes Descripción
Fabricante
TDF5242 Datasheet PDF : 20 Pages
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Philips Semiconductors
Brushless DC motor drive circuit
Preliminary specification
TDF5242T
handbook, full pagewidth
from 47 kΩ
20
DAC
220 nF 16
+14 V
BD434
680 Ω
39 kΩ
10 kΩ
47 nF
470 Ω
120 Ω
47 nF
1 µF
21
19
6
TDF5242T
START-UP
OSCILLATOR
28
OUT-PA
18 nF 15
14
18 nF
ADAPTIVE
COMMUTATION
DELAY
8
TEST
THERMAL
PROTECTION
TIMING
10 nF 18
FG to
10
micro-
controller
ROTATION
SPEED
AND
DETECTOR
OUTPUT
STAGE
COMMUTATION
LOGIC
27
OUT-NA
2
OUT-PB
OUT-NB
1
OUT-PC
4
GND2 11
DIRECTION
LOGIC
BRAKE
LOGIC
5
OUT-NC
22
GND1 3
23
+5 V
n.c.
13
12, 17, 25
7
9
DIR
BRAKE
24
26
EMF COMPARATORS
MGG992
Fig.8 Application of the TDF5242T as a scanner driver, with the use of the uncommitted on-chip OTA.
1997 Sep 12
15
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