參數(shù)資料
型號： KA3014
廠商： FAIRCHILD SEMICONDUCTOR CORP
元件分類： 光電元器件
英文描述： Spindle + 4-CH Motor Driver
中文描述： CD MOTOR DRIVER, PQFP48
封裝： 14 X 14 MM, HEAT SINK, QFP-48
文件頁數(shù)： 13/26頁
文件大小： 419K
代理商： KA3014
KA3014
13
3. TORQUE & OUTPUT CURRENT CONTROL
Torque & output current control
By amplifying the voltage difference between E
C
and E
CR
from the servo IC, the torque sense amp produces the input
(V
AMP
) for the current sense amp.
The current sense amp produces the input for the gain controller to allow the output current (I
O
) of the driver to be
controlled by the input voltage (V
AMP
), where the output current (I
O
) is detected by the sense resistor (R
NF
) and is
converted into V
RNF
.
In the end, the signals of the servo IC control the velocity of the motor by controlling the output current (I
O
) of the driver.
When the junction temperature rises up to about 175
°
C, then the output drive circuit will shut down.
The range of the torque control input voltage is as shown below.
The input range (E
C
) of the torque sense amp is 0.5V ~ 3.3V.
+
+
Torque sense amp
E
CR
E
C
Current sense amp
TSD
Gain
Controller
Driver
M
R
NF
I
O
V
M
V
AMP
V
RNF
+
V
M
Forward
Ecoff+
Ecoff
Reverse
V
RNF
[V]
3 mV
0
E
CR
-E
C
[V]
Rotation
Ec < E
CR
Forward rotation
Ec > E
CR
Stop after detecting
reverse rotation
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
KA3016D 功能描述:馬達(dá)/運動/點火控制器和驅(qū)動器 DISC BY MFG 2/02 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube
KA3016DTF 功能描述:馬達(dá)/運動/點火控制器和驅(qū)動器 DISC BY MFG 2/02 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube
KA3017 功能描述:功率驅(qū)動器IC QFPH-48 RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
KA3018D2 功能描述:馬達(dá)/運動/點火控制器和驅(qū)動器 DISC BY MFG 2/02 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube
KA3018D2TF 功能描述:馬達(dá)/運動/點火控制器和驅(qū)動器 DISC BY MFG 2/02 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube
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