SI9979C
更新时间：2024-12-03 13:10:08
品牌：VISHAY
描述：IC BRUSHLESS DC MOTOR CONTROLLER, PQFP48, SQFP-48, Motion Control Electronics
概述
规格参数
数据手册SI9979C 概述
IC BRUSHLESS DC MOTOR CONTROLLER, PQFP48, SQFP-48, Motion Control Electronics 运动控制电子器件
SI9979C 规格参数
| 是否无铅： | 含铅 | 是否Rohs认证： | 不符合 |
| 生命周期： | Active | 零件包装代码： | QFP |
| 包装说明： | LFQFP, | 针数： | 48 |
| Reach Compliance Code： | unknown | ECCN代码： | EAR99 |
| HTS代码： | 8542.39.00.01 | 风险等级： | 5.69 |
| 其他特性： | ALSO REQUIRES 20 TO 40V SUPPLY | 模拟集成电路 - 其他类型： | BRUSHLESS DC MOTOR CONTROLLER |
| JESD-30 代码： | S-PQFP-G48 | JESD-609代码： | e0 |
| 长度： | 7 mm | 功能数量： | 1 |
| 端子数量： | 48 | 最高工作温度： | 70 °C |
| 最低工作温度： | 封装主体材料： | PLASTIC/EPOXY | |
| 封装代码： | LFQFP | 封装形状： | SQUARE |
| 封装形式： | FLATPACK, LOW PROFILE, FINE PITCH | 峰值回流温度（摄氏度）： | 240 |
| 认证状态： | Not Qualified | 座面最大高度： | 1.6 mm |
| 最大供电电压 (Vsup)： | 17.5 V | 最小供电电压 (Vsup)： | 14.5 V |
| 标称供电电压 (Vsup)： | 16 V | 表面贴装： | YES |
| 温度等级： | COMMERCIAL | 端子面层： | TIN LEAD |
| 端子形式： | GULL WING | 端子节距： | 0.5 mm |
| 端子位置： | QUAD | 处于峰值回流温度下的最长时间： | 30 |
| 宽度： | 7 mm | Base Number Matches： | 1 |
SI9979C 数据手册
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PDF下载Si9979
Vishay Siliconix
Si9979
3-Phase Brushless DC Motor Controller
FEATURES
• Hall-Effect Commutation
é 60° or 120° Sensor Spacing
é Integral High-Side Drive for all
N-Channel MOSFET Bridges
é Quadrature Selection
é Tachometer Output
é Reversible
é Braking
é Output Enable Control
é Cross Conduction Protection
é Current Limiting
é Undervoltage Lockout
é Internal Pull-Up Resistors
é PWM Input
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.
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 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,
The Si9979 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).
FUNCTIONAL BLOCK DIAGRAM
FaxBack 408-970-5600, request 70012
www.siliconix.com
S-60752-Rev. D, 05-Apr-99
1
Si9979
Vishay Siliconix
Operating Temperature
ABSOLUTE MAXIMUM RATINGS
Voltage on Pin 42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 V
C Suffix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 70°C
D Suffix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40 to 85°C
Voltage on Pins 1-4, 10, 11 . . . . . . . . . . . . . . . .-0.3 V to V + 0.3 V
DD
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . .-65 to 150°C
Voltage on Pins 5-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 V to 5.5 V
Voltage on Pins 26, 28, 30, 32, 34, 36 . . . . . . . . . . . . . . . . . . . . . 60 V
Voltage on Pins 27, 31, 35 . . . . . . . . . . . . . . . . . . . . . . . . . .-2 to 50 V
Junction Temperature (T ). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C
J
Power Dissipation (P )
D
C Suffix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.70 W
D Suffix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.55 W
RECOMMENDED OPERATING RANGE
V+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +20 to 40 V
R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 kΩ Min
DC
T
SPECIFICATIONS
Limits
-40°C to 85°C
Test Conditions
Unless Otherwise Specified
Parameter
Symbol
Mina
Typb
Maxa
Units
V+ = 20 to 40 V, I = 0 mA
DD
Power
Supply Voltage Range
Logic Voltage
V+
20
40
V
V
-20 mA ≤ I ≤ 0 mA
14.5
16
17.5
DD
DD
Supply Current
Logic Current
I+
4.5
mA
V
I
-20
4.0
DD
c
Internal Reference
V
4.2
REF
Commutation Inputs (INA, INB, INC, 60/120)
High-State
V
IH
V
Low-State
V
1.0
10
IL
High-State Input Current
Low-State Input Current
I
V
= V
IH DD
IH
µA
I
V = 0 V
IL
-50
IL
Logic Inputs (F/R, EN, QS, PWM, BRK)
High-State
V
2.0
IH
V
Low-State
V
0.8
10
IL
High-State Input Current
Low-State Input Current
Outputs
I
V
= 5.5 V
IH
IH
µA
I
V
= 0 V
-125
16
IL
IL
Low-Side Gate Drive, High State
Low-Side Gate Drive, Low State
V
14
17.5
0.1
18
GBH
V
GBL
T = 0 to 70°C
C Suffix
D Suffix
16
16
A
High-Side Gate Drive, High State
High-Side Gate Drive, Low State
V
V
GTH
T = -40 to 85°C
20
A
V
0.1
GTL
d
Capacitor Voltage
V
V+ = 40 V
55
70
CAP
Low-Side Switching, Rise Time
Low-Side Switching, Fall Time
High-Side Switching, Rise Time
High-Side Switching, Fall Time
t
rL
Risetime = 1 to 10 V
Falltime = 10 to 1 V
t
25
fL
t
100
40
rH
fH
C = 600 pF
L
ns
t
t
t
100
300
0.15
600
BLH
BHL
Break-Before-Make Time
TACH Output/FAULT Output
TACH Output Pulsewidth
V
I
= 1.0 mA
0.4
V
OL
OL
t
300
ns
T
S-60752-Rev. D, 05-Apr-99
2
FaxBack 408-970-5600, request 70012
www.siliconix.com
Si9979
Vishay Siliconix
SPECIFICATIONS
Limits
-40°C to 85°C
Test Conditions
Unless Otherwise Specified
Parameter
Symbol
Mina
Typb
Maxa
Units
V+ = 20 to 40 V, I = 0 mA
DD
Protection
Low-Side Undervoltage Lockout
Low-Side Hysteresis
UVLL
12.2
0.8
V
V
H
High-Side Undervoltage Lockout
Current Limit
UVLH
S
= 0 V
V
- 3.3
DD
A, B, C
Comparator Input Bias Current
I
-5
90
85
0
µA
mV
V
IB
T
= 0 to 70°C
C Suffix
D Suffix
100
110
125
1
A
Comparator Threshold Voltage
Common Mode Voltage
One Shot Pulse Width
V
TH
T = -40 to 85°C
100
A
V
CM
R
= 10 k, C = 0.001 µF
8
10
12
T
T
t
µs
p
R
= 10 k, C = 0.01 µF
80
100
120
T
T
Notes
a. The algebraic convention whereby the most negative value is a minimum and the most positive a maximum.
b. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing.
c. The reference voltage is not available for external use.
d. V
= (V+) + (V
)
DD
CAP
COMMUTATION TRUTH TABLE
Inputs
Outputs
Sensors
Sensors
(60°Spacing)
(60°Spacing)
Top Drive
Bottom Drive
IN
IN
IN
IN
IN
IN
EN
F/R
BRK
I +
GT
GT
GT
GB
GB
GB
C
FAULT
Conditions
A
B
C
A
B
C
S
A
B
C
A
B
0
1
1
1
0
0
0
1
1
1
0
0
X
X
L
L
L
1
1
0
0
0
0
1
1
1
0
0
0
1
1
1
0
X
X
L
L
L
0
0
1
1
0
0
0
1
1
1
0
0
0
1
1
1
X
X
L
L
L
1
1
0
0
1
1
1
0
0
0
1
1
1
0
0
0
X
X
L
L
L
1
1
0
0
0
0
1
1
1
0
0
0
1
1
1
0
X
X
L
L
L
1
1
0
0
1
0
0
0
1
1
1
0
0
0
1
1
X
X
L
L
L
1
1
0
0
1
1
1
1
1
1
1
1
1
1
1
1
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
X
X
X
X
X
X
X
X
X
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
0
0
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
X
X
0
1
1
X
X
X
X
1
1
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
1
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
1
1
0
0
0
0
0
1
1
1
0
0
1
0
1
1
0
0
0
0
1
0
0
1
1
0
0
0
1
1
1
0
0
1
0
1
0
1
1
0
0
0
0
0
0
0
1
1
0
1
1
1
0
0
1
0
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
1
0
0
0
0
0
0
Disable
Power Down
Brake
Over I in BRK
Over I
Notes: L. Any valid sensor combination
X. Don’t care
FaxBack 408-970-5600, request 70012
www.siliconix.com
S-60752-Rev. D, 05-Apr-99
3
Si9979
Vishay Siliconix
PIN CONFIGURATION
PIN DESCRIPTION
Pins 1-3: INA, INB, INC
Pin 7: QS (Quadrature Select)
This input determines whether the bottom MOSFETs or both
bottom and top MOSFETs switch in response to the PWM
signal. A logic “1” on this input enables only the bottom
MOSFETs. This is the default condition as this pin is pulled up
internally. When this pin is pulled to ground, both the bottom
and top MOSFETs are enabled.
INA, INB, and INC are the commutation sensor inputs, and are
intended to be driven by open collector Hall effect switches.
These inputs have internal pull up resistors tied to VDD, which
eliminates the need for external pull up resistors.
Pin 4: 60/120
The 60/120 input allows the use of the Si9979 with either a 60°
or 120° commutation sensor spacing. An internal pull up
resistor, which is tied to VDD, sets the default condition to 60°
spacing. 120° spacing is selected by pulling this input to
ground.
Pin 8: PWM
An open collector (drain) or TTL compatible signal is applied to
this input to control the motor speed. The QS input determines
which MOSFETs are switched in response to the PWM signal.
If no PWM signal is being used, this input is left open. It is
pulled up internally, which allows the MOSFETs to follow the
commutation sequence.
Pin 5: EN (Enable)
A logic “1” on this input allows commutation of the motor. This
is the default condition as this pin is pulled up internally. When
this pin is pulled to ground, all gate drive outputs are turned off.
Pin 9: BRK
With this input at logic “1”, the top MOSFETs are turned off and
the bottom MOSFETs are turned on, shorting the motor
windings together. This provides a braking torque which is
dependent on the motor speed. This is the default condition as
this pin is pulled up internally. When this pin is pulled to
ground, the MOSFETs are allowed to follow the commutation
sequence.
Pin 6: F/R (Forward/Reverse)
A logic “1” on this input selects commutation for motor rotation
in the “forward” direction. This is the default condition as this
pin is pulled up internally. When this pin is pulled to ground, the
commutation sensor logic levels are inverted internally,
causing reverse rotation.
S-60752-Rev. D, 05-Apr-99
4
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www.siliconix.com
Si9979
Vishay Siliconix
Pin 10: TACH
Pin 27: SC
This output provides a minimum 300-nanosecond output pulse
for every commutation sensor transition, yielding a 6 pulse per
electrical revolution tachometer signal. This output is open
drain.
This pin is negative supply of the high-side drive circuitry. As
such, it is the connection for the negative side of the bootstrap
capacitor, the top MOSFET Source, the bottom MOSFET
Drain, and the Phase C output.
Pin 11: FAULT
Pin 28: CAPC
The FAULT output switches low to indicate that at least one of
the following conditions exists, controller disable (EN),
undervoltage lockout, invalid commutation sensor code
shutdown, or overcurrent shutdown. This output is open drain.
This pin is the positive supply of the high-side circuitry. The
bootstrap capacitor for Phase C is connected between this pin
and SC.
Pin 29: GBB
Pin 17: RT/CT
This is the gate drive output for the bottom MOSFET in
Phase B.
The junction of the current limit one shot timing resistor and
capacitor is connected to this pin. This one-shot is triggered by
the current limit comparator when an overcurrent condition
exists. This action turns off all the gate drives for the period
defined by RT and CT, thus stopping the flow of current.
Pin 30: GTB
This is the gate drive output for the top MOSFET in Phase B.
Pin 18: RT
Pin 31: SB
One side of the current limit one shot timing resistor is
connected to this pin.
This pin is negative supply of the high-side drive circuitry. As
such, it is the connection for the negative side of the bootstrap
Pin 19: IS+
Pin 34: GTA
This is the sensing input of the current limit comparator and
should be connected to the positive side of the current sense
resistor. When the voltage across the current sense resistor
exceeds 100 mV, the comparator switches and triggers the
current limit one-shot. The one-shot turns off all the gate drives
for the period defined by RT and CT, thus stopping the flow of
current. If the overcurrent condition remains after the
shutdown period, the gate drives will be held off until the
overcurrent condition no longer exists.
This is the gate drive output for the top MOSFET in Phase A.
Pin 35: SA
This pin is negative supply of the high-side drive circuitry. As
such, it is the connection for the negative side of the bootstrap
capacitor, the top MOSFET Source, the bottom MOSFET
Drain, and the Phase A output.
Pin 36: CAPA
Pin 20: IS-
This pin is the positive supply of the high-side circuitry. The
bootstrap capacitor for Phase A is connected between this pin
and SA.
This pin is the ground reference for the current limit
comparator. It should be connected directly to the ground side
of the current sense resistor to enhance noise immunity.
Pin 42: V+
Pins 12-16, 21-24, 37-41, 44-48: GND
The supply voltage for the Si9979 is connected between this
pin and ground. The internal logic and high-side supply
voltages are derived from V+.
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.
Pin 43: VDD
Pin 25: GBC
VDD is the internal logic and gate drive voltage. It is necessary
to connect a capacitor between this pin and ground to insure
that the current surges seen at the turn on of the bottom
MOSFETs does not trip the undervoltage lockout circuitry.
This is the gate drive output for the bottom MOSFET in
Phase C.
Pin 26: GTC
This is the gate drive output for the top MOSFET in Phase C.
FaxBack 408-970-5600, request 70012
www.siliconix.com
S-60752-Rev. D, 05-Apr-99
5
Si9979
Vishay Siliconix
APPLICATIONS
FIGURE 1. Three-Phase Brushless DC Motor Controller
FIGURE 2. Single H-Bridge Controller
S-60752-Rev. D, 05-Apr-99
6
FaxBack 408-970-5600, request 70012
www.siliconix.com
Si9979
Vishay Siliconix
FIGURE 3. Three-Phase AC Motor Controller
FIGURE 4. External VDD Regulator
FaxBack 408-970-5600, request 70012
www.siliconix.com
S-60752-Rev. D, 05-Apr-99
7
SI9979C 相关器件
| 型号 | 制造商 | 描述 | 价格 | 文档 |
| SI9979CS | TEMIC | Brushless DC Motor Controller, PQFP48, | 获取价格 |
|
| SI9979CS-E3 | VISHAY | Brushless DC Motor Controller, PQFP48, LEAD FREE, SQFP-48 | 获取价格 |
|
| SI9979D | VISHAY | 暂无描述 | 获取价格 |
|
| SI9979DS-E3 | VISHAY | Brushless DC Motor Controller, PQFP48, LEAD FREE, SQFP-48 | 获取价格 |
|
| SI9979_04 | VISHAY | 3-Phase Brushless DC Motor Controller | 获取价格 |
|
| SI9986 | VISHAY | Buffered H-Bridge | 获取价格 |
|
| SI9986CY | VISHAY | Buffered H-Bridge | 获取价格 |
|
| SI9986CY-E3 | VISHAY | Motion Control Electronic, CMOS, PDSO8 | 获取价格 |
|
| SI9986CY-T1 | VISHAY | Buffered H-Bridge | 获取价格 |
|
| SI9986CY-T1-E3 | VISHAY | Buffered H-Bridge | 获取价格 |
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