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參數(shù)資料
| 型號(hào)： | LB11975 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | High-Speed CD-ROM Spindle Motor Driver IC |
| 中文描述： | 高速的CD - ROM主軸馬達(dá)驅(qū)動(dòng)IC |
| 文件頁(yè)數(shù)： | 9/12頁(yè) |
| 文件大?。?/td> | 118K |
| 代理商： | LB11975 |
Torque Command
Figure 1 shows the relationship between the control voltage (V
CTL
) and the RF voltage.
No. 6497-9/12
LB11975
3mV
VRF
Forward rotation
1.65V
Dead zone
VCTL
VCREF=1.65V
Offset voltage
D
CK
Q
R
D
CK
Q
R
D
CK
Q
R
VCTL
VCREF
IN1+
IN1–
IN2+
IN2–
IN3+
IN3–
OUT
Figure 1
Figure 2 Reverse Rotation Detection Circuit Block Diagram
Truth Table
Note:
*
Since this IC includes a reverse rotation prevention circuit, although the IC will brake the motor if the motor is rotating and V
CTL
< V
CREF
, when
reverse rotation is detected, the IC will turn the output off, thus stopping motor rotation.
Operation
V
CTL
> V
CREF
V
CREF
> V
CTL
Forward rotation
Reverse torque braking
*
Reverse Rotation Detection Circuit Truth Table
During forward rotation:
The OUT signal is set high to reset DFF.
During reverse rotation:
Reverse rotation is detected when the Hall comparator output falls.
At that point the OUT signal is set to the low level.
RS pin
Forward rotation
HIGH
Reverse rotation
LOW
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LB11980H | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Monolithic Digital IC For VCR Capstan Three-Phase Brushless Motor Driver |
| LB11981 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Three-Phase Sensorless Motor Driver |
| LB11981-TLM-E | 制造商:Sony Semiconductor Solutions Division 功能描述: |
| LB11983 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| LB11983-E | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 FAN MOTOR 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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