TDF5140 Philips Semiconductors, TDF5140 Datasheet - Page 11
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TDF5140
Manufacturer Part Number
TDF5140
Description
Brushless DC motor drive circuit
Manufacturer
Philips Semiconductors
Datasheet
1.TDF5140.pdf
(19 pages)
handbook, full pagewidth
Philips Semiconductors
1999 March 15
Brushless DC motor drive circuit
processor
GND2
GND1
micro-
FG to
from
DAC
47 k
220 nF
18 nF
18 nF
10 nF
5 V
TEST
4.7
k
V P
Fig.5 Typical application of the TDF5140A as a scanner driver, with use of OTA.
14 V
14
11
10
9
2
12
6
8
PROTECTION
THERMAL
DETECTOR
ROTATION
OUTPUT
SPEED/
STAGE
TDF5140A
47 nF
680
BD434
15
COMMUTATION
470
OSCILLATOR
ADAPTIVE
START-UP
DETECTOR
POSITION
120
DELAY
TIMING
DIVIDE
STAGE
BY 2
39 k
7
13
47 nF
10 k
5
COMMUTATION
LOGIC
11
1 F
4
EMF COMPARATORS
TP
TP
TP
TN
TN
TN
TN
TN
TN
D
D
D
D
D
D
18
17
16
1
3
SCANNER
MOTOR
Product specification
MBK986
TDF5140A
POSITION
COIL