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SI9979CS-E3

P1-P3P4-P6P7-P9P10-P11
Si9979
Vishay Siliconix
Document Number: 70012
S-41209—Rev. E, 21-Jun-04
www.vishay.com
7
APPLICATION CIRCUITS
Notes:
1) If driving single phase
BLDC, tie IN
A
, IN
B
, and IN
C
together and drive with single
hall.
2) If it is being used as an H-
bridge controller, tie IN
A
, IN
B
,
and IN
C
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.
To
Motor
Windings
A
B
18
25
7
4
20
29
10
19
42
43
1
2
3
5
6
9
34
35
36
30
31
32
Si9979
C
R
To
Commutation
Sensor
V+
FAULT
GND
R
S
Q1
Q4
Q2
Q5
17
26
27
28
35
C
T
TACH
PWM IN
1 mF
R
T
CB
A
CB
B
11
8
LITTLE FOOT
12−16, 21−24
37−41, 44−48
V+
V
DD
IN
A
IN
B
IN
C
EN
F/R
BRK
PWM
FAULT
S
A
GT
A
S
B
GT
B
S
C
GT
C
GB
A
GB
B
GB
C
I
S
−
GND
I
S
+
R
T
/C
T
QS
TACH
60/120
R
T
GND
CAP
C
CAP
B
CAP
A
FIGURE 2. Single H-Bridge Controller
To
Motor
Windings
A
B
C
18
25
7
4
20
29
10
19
42
43
1
2
3
5
6
9
34
35
36
30
31
32
Si9979
C
R
V+
FAULT
GND
R
S
Q1
Q4
Q2
Q5
Q3
Q6
17
26
27
28
35
C
T
TACH
PWM IN
1 mF
R
T
CB
A
CB
B
CB
C
11
8
1
7
4
CP
0
0
3
2
6
5
CP
1
MR
CLK
MC14022
LITTLE FOOT
CAP
A
CAP
C
CAP
B
V+
V
DD
IN
A
IN
B
IN
C
EN
F/R
BRK
PWM
FAULT
S
A
GT
A
S
B
GT
B
S
C
GT
C
GB
A
GB
B
GB
C
I
S
−
GND
I
S
+
R
T
/C
T
Q
S
TACH
60/120
R
T
GND
12−16, 21−24
37−41, 44−48
FIGURE 3. Three-Phase AC Motor Controller
Si9979
Vishay Siliconix
www.vishay.com
8
Document Number: 70012
S-41209—Rev. E, 21-Jun-04
APPLICATION CIRCUITS
V+
C
1
1 mF
V+
V
DD
Si9979
V
DD
’
V
DD
’ = V
DD
− V
BE
FIGURE 4. External V
DD
Regulator
Legal Disclaimer Notice
Vishay
Document Number: 91000 www.vishay.com
Revision: 08-Apr-05 1
Notice
Specifications of the products displayed herein are subject to change without notice. Vishay Intertechnology, Inc.,
or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies.
Information contained herein is intended to provide a product description only. No license, express or implied, by
estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay's
terms and conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any express
or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness
for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications.
Customers using or selling these products for use in such applications do so at their own risk and agree to fully
indemnify Vishay for any damages resulting from such improper use or sale.
P1-P3P4-P6P7-P9P10-P11

SI9979CS-E3

Mfr. #:
Buy SI9979CS-E3
Manufacturer:
Vishay / Siliconix
Description:
Motor / Motion / Ignition Controllers & Drivers DC Motor Controller
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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