 English |
|
|
|
|
|
|
|
| SI9979_04 Datasheet, PDF (7/9 Pages) Vishay Siliconix – 3-Phase Brushless DC Motor Controller | |||
| |||
| ◁ |
Si9979
Vishay Siliconix
APPLICATION CIRCUITS
V+
To
Commutation
Sensor
TACH
PWM IN
FAULT
GND
1 mF
RT
CT
Si9979
Q1
42 V+
GTA 34
43 VDD
SA 35
1 INA
2 INB
CAPA 36
GTB 30
CBA
3 INC
SB 31
5 EN
6 F/R
9 BRK
4 60/120
CAPB 32
GTC 26
SC 27
CAPC 28
CBB
10 TACH
GBA 35
Q4
7 QS
GBB 29
8
11
PWM
GBC 25
18 FAULT
17
RT
RT/CT
IS+ 19
R
ISâ 20
GND
GND
C
RS
12â16, 21â24
37â41, 44â48
FIGURE 2. Single H-Bridge Controller
V+
MC14022
Si9979
Q1
CLK
0
1
2
3
CP0
4
5
6
CP1 7
MR
TACH
PWM IN
FAULT
1 mF
RT
42 V+
43 VDD
1 INA
2 INB
3 INC
5 EN
6 F/R
9 BRK
4 60/120
10
7
TACH
Q
8
11
PSWM
18 FAULT
17
RT
RT/CT
GND
GTA 34
SA 35
CAPA 36
GTB 30
SB 31
CAPB 32
GTC 26
SC 27
CAPC 28
GBA 35
GBB 29
GBC 25
IS+ 19
ISâ 20
GND
CBA
CBB
CBC
R
C
Q4
CT
12â16, 21â24
RS
37â41, 44â48
GND
Document Number: 70012
S-41209âRev. E, 21-Jun-04
FIGURE 3. Three-Phase AC Motor Controller
LITTLE FOOT
Q2
A To
B Motor
Windings
Notes:
1) If driving single phase
BLDC, tie INA, INB, and INC
together and drive with single
Q5
hall.
2) If it is being used as an H-
bridge controller, tie INA, INB,
and INC to GND. Use F/R in-
put to change active diagonal
pair of MOSFETs.
3) There is no TACH output
when connected in this con-
figuration.
LITTLE FOOT
Q2
Q3
A
B
To
Motor
C Windings
Q5
Q6
www.vishay.com
7
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese