SI9979CS Vishay, SI9979CS Datasheet

IC, MOTOR CONTROLLER DC BRUSHLESS SQFP48

SI9979CS

Manufacturer Part Number
SI9979CS
Description
IC, MOTOR CONTROLLER DC BRUSHLESS SQFP48
Manufacturer
Vishay
Type
3 Phase Brushless DC Motor Controllerr
Datasheet

Specifications of SI9979CS

Motor Type
DC Brushless
No. Of Outputs
6
Output Voltage
16V
Supply Voltage Range
14.5V To 17.5V
Driver Case Style
QFP
No. Of Pins
48
Operating Temperature Range
0°C To +70°C
Operating Supply Voltage
20 V to 40 V
Supply Current
4.5 mA
Mounting Style
SMD/SMT
Package / Case
SQFP-48
Operating Temperature
0 C to + 70 C
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SI9979CS
Manufacturer:
SILICON
Quantity:
667
Part Number:
SI9979CS
Manufacturer:
ST
0
Part Number:
SI9979CS-E3
Manufacturer:
Vishay/Siliconix
Quantity:
946
Part Number:
SI9979CS-E3
Manufacturer:
Vishay Siliconix
Quantity:
10 000
DESCRIPTION
The Si9979 is a monolithic brushless dc motor controller with
integral high-side drive circuitry. The Si9979 is configured to
allow either 60_or 120_ commutation sensor spacing. The
internal low-voltage regulator allows operation over a wide
input voltage range, 20- to 40-V dc.
The Si9979 provides commutation from Hall-effect sensors.
The integral high-side drive, which utilizes combination
bootstrap/charge pump supplies, allows implementation of an
all n-channel MOSFET 3-phase bridge. PWM, direction,
Document Number: 70012
S-41209—Rev. E, 21-Jun-04
FEATURES
D Hall-Effect Commutation
D 60_ or 120_ Sensor Spacing
D Integral High-Side Drive for all N-Channel MOSFET
D PWM Input
FUNCTIONAL BLOCK DIAGRAM
Bridges
60/120
FAULT
R
TACH
PWM
BRK
T
V
IN
IN
IN
F/R
/C
EN
QS
V+
R
DD
A
B
C
T
T
42
43
10
11
18
17
1
2
3
4
5
6
7
8
9
U.V. Lockout
Low-Voltage
Regulator
Low-Side
3-Phase Brushless DC Motor Controller
V
V
V
V
V
V
V
V
V
V
V
DD
REF
REF
REF
REF
REF
DD
REF
DD
DD
DD
CAP
U.V. Lockout
A
High-Side
CAP
B
CAP
C
D Quadrature Selection
D Tachometer Output
D Reversible
D Braking
D Output Enable Control
One Shot
quadrature select, and braking inputs are included for control
along with a tachometer output. Protection features include
cross conduction protection, current limiting, and undervoltage
lockout. The FAULT output indicates when undervoltage, over
current, disable, or invalid sensor shutdown has occurred.
The Si9979 is available in both standard and lead (Pb)-free
48-pin SQFP packages and is specified to operate over the
commercial temperature range of 0 to 70_C (C suffix), and the
industrial temperature range of −40 to 85_C (D suffix).
Logic
Input
V
DD
Bootstrap Reg.
Bootstrap Reg.
Bootstrap Reg.
Charge Pump
Charge Pump
Charge Pump
D Cross Conduction Protection
D Current Limiting
D Undervoltage Lockout
D Internal Pull-Up Resistors
+
13-16, 21-24
37-41, 44-48
Vishay Siliconix
25
36
34
35
32
30
31
28
26
27
33
29
20
19
CAP
GT
S
CAP
GT
S
CAP
GT
S
GB
GB
GB
GND
I
I
S
S
A
B
C
+
A
B
C
A
B
C
www.vishay.com
Si9979
A
B
C
1

Related parts for SI9979CS

SI9979CS Summary of contents

Page 1

... CAP CAP CAP High-Side U.V. Lockout Input Logic One Shot Si9979 Vishay Siliconix D Cross Conduction Protection D Current Limiting D Undervoltage Lockout D Internal Pull-Up Resistors Bootstrap Reg. 36 CAP A Charge Pump ...

Page 2

... Si9979 Vishay Siliconix ABSOLUTE MAXIMUM RATINGS Voltage on Pin Voltage on Pins 1−4, 10 Voltage on Pins 5− Voltage on Pins 26, 28, 30, 32, 34 Voltage on Pins 27, 31 Operating Temperature C Suffix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 3

... −40 to 85_C 0.001 0. Top Drive BR GT- GT Vishay Siliconix Limits Min Typ Max 12.2 0.8 V − 3.3 DD −5 C Suffix 90 100 110 D Suffix 85 100 125 100 120 Outputs Bottom Drive GT FAULT Si9979 Unit Conditions Disable Power Down Brake Over I in BRK Over I www ...

Page 4

... A logic “1” on this input selects commutation for motor rotation in the “forward” direction. This is the default condition as this www.vishay.com 4 ORDERING INFORMATION Standard Lead (Pb)-Free Part Number Part Number CAP Si9979CS Si9979CS— Si9979DS Si9979DS— NOTE: Si9979CS and Si9979DS are supplied in trays. CAP CAP pin is pulled up internally ...

Page 5

... Document Number: 70012 S-41209—Rev. E, 21-Jun-04 Vishay Siliconix Pins 12−16: 21−24, 37−41, 44−48, GND These pins are the return path for both the logic and gate drive circuits. Also, they serve to conduct heat out of the package, into the circuit board ...

Page 6

... Si9979 Vishay Siliconix PIN DESCRIPTION (CONT’D) Pin 34 This is the gate drive output for the top MOSFET in Phase A. Pin 35 This pin is negative supply of the high-side drive circuitry. As such the connection for the negative side of the bootstrap capacitor, the top MOSFET Source, the bottom MOSFET Drain, and the Phase A output ...

Page 7

... − GND GND 12−16, 21−24 37−41, 44−48 FIGURE 3. Three-Phase AC Motor Controller Si9979 Vishay Siliconix LITTLE FOOT Motor B Windings Notes driving single phase BLDC, tie IN A together and drive with single hall being used bridge controller, tie IN and IN to GND. Use F/R in- ...

Page 8

... Si9979 Vishay Siliconix APPLICATION CIRCUITS www.vishay.com ’ ’ − FIGURE 4. External V Regulator Si9979 Document Number: 70012 S-41209—Rev. E, 21-Jun-04 ...

Page 9

... Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any information provided herein to the maximum extent permitted by law. The product specifications do not expand or otherwise modify Vishay’ ...

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