參數(shù)資料
型號(hào)： 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(yè)數(shù)： 15/26頁(yè)
文件大小： 419K
代理商： KA3014
KA3014
15
5. SHORT BRAKE FUNCTION
When the pick-up 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 KA3014. 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, then 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 #12
Short brake
High
On
Low
Off
14
15
16
MOTOR
OFF
ON
12
V
CC
ON
OFF
80K
1K
Q1
Drive logic
V
M
相關(guān)PDF資料
PDF描述
KA3017 Spindle + 4-CH Motor Driver
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KA3027D2TF Tantalum Molded High Reliability Capacitor; Capacitance: 3.3uF; Voltage: 35V; Case Size: 5.8x3.1 mm; Packaging: Tape & Reel
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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KA3016DTF 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
KA3017 功能描述:功率驅(qū)動(dòng)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(shí)間: 下降時(shí)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(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
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