參數(shù)資料
型號(hào)： KA3017
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(yè)數(shù)： 15/26頁(yè)
文件大?。?/td> 433K
代理商： KA3017
KA3017
15
4. Power Save Function
- The power save circuit is activated by operating TR Q1.
- When the SS (Start/Stop) pin 10 is high (V
CC
), the TR Q1 is turned on and the bias circuit is enabled. On the other hand,
when the SS (Start/Stop) pin 10 is Open or Low (GND), the TR Q1 is turned off and the bias circuit is disabled.
- The power save operation controlled by SS (pin 10) input conditions is as follows;
5. Short Brake Function
When the pick-up mechanism moves from the inner to the outer spindle of the MD(Mini Disk), the brake function of the
reverse voltage is commonly employed to rate the rotational velocity of the spindle motor.However, if the spindle motor
rotates rapidly, the brake function of the reverse voltage may produce too much heat at the drive IC.
To remove these shortcomings and to enhance efficiency, the short brake function is added to KA3017. When the short brake
function is active, all upper Power transistors are turned off and the lower Power transistors turned on, so as to reduce the rota-
tional velocity of the motor. The short brake operation controlled by SB (pin 12), and the input conditions are as follows.
6.
Thermal Shutdown (Tsd) Function
When the junction temperature rises up to 175
°
C, the output drive circuit shuts down, when the junction temperature falls off
to 160
°
C, the output drive circuit operates normally. It has the temperature hysteresis of about 15
°
C.
Pin#10
High
Open/Low
KA3017
Start
Stop
Pin#12
HIGH
LOW
SHORT BRAKE
ON
OFF
10
V
CC
Start
Stop
12K
30K
Q1
100k
Bias block
14
15
16
MOTOR
OFF
ON
12
V
CC
ON
OFF
80K
1K
Q1
Drive logic
V
M
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
KA3018D2 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)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(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)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
KA301A 功能描述:運(yùn)算放大器 - 運(yùn)放 amplifier Single Operational RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel
KA301A_Q 功能描述:運(yùn)算放大器 - 運(yùn)放 amplifier Single Operational RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel
KA301AD 制造商:未知廠家 制造商全稱:未知廠家 功能描述:slNGLE oPERATIONAL AMPLIFlER
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