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參數(shù)資料
| 型號(hào)： | LB1980H |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Three-Phase Brushless Motor Driver for VCR Capstan Motors |
| 中文描述： | 三相無刷電機(jī)錄像機(jī)絞盤馬達(dá)驅(qū)動(dòng)器 |
| 文件頁數(shù)： | 4/8頁 |
| 文件大?。?/td> | 140K |
| 代理商： | LB1980H |
Pin Descriptions
Pin No.
Pin
Function
Equivalent circuit
Used for external adjustment of the torque ripple correction
ratio. Apply a voltage externally with a low-impedance circuit
to the ADJ pin to adjust the correction ratio. The correction
ratio falls as the applied voltage is increased, and increases
as the applied voltage decreases. The torque ripple
correction ratio can be modified by factors in the range 0 to 2
times the ratio that applies when his pin is left open.
(The pin voltage is set to about V
CC
/2 internally, and the
input impedance is about 5 k
.)
23
ADJ
Output block power supply
Output current detection. The control block current limiter
operates using the resistor Rf connected between these pins
and ground. Also, the lower side saturation prevention circuit
and the torque ripple correction circuit operate based on the
voltages across this resistor. It is especially important to note
that, since the saturation prevention level is set using this
voltage, the lower side saturation prevention circuit will
become less effective in the high current region if the value of
Rf is lowered excessively. Also, the PWR and SENSE pins
must be connected together.
U phase output
V phase output
W phase output
(Spark killer diodes are built-in.)
No. 5974-4/8
LB1980H
27
28
1
U
OUT
V
OUT
W
OUT
4
24
Rf (SENSE)
Rf (PWR)
22
V
S
Ground sensing. The influence of the common ground
impedance on Rf can be excluded by connecting this pin to
nearest ground for the Rf resistor side of the motor ground
wiring that includes Rf. (This pin must not be left open.)
5
GSENSE
Forward/reverse selection. The voltage applied to this pin
selects the motor direction (forward or reverse).
(Vth = 2.5 V at V
CC
= 5 V (typical))
6
FR
Ground for all circuits other than the output transistors. The
lowest potential of the output transistors is that of the Rf pin.
7
GND
Input used when the FG amplifier is used as an inverting
input. A feedback resistor must be connected between
FG
OUT
and this pin.
8
FG
IN
+
Noninverting input used when the FG amplifier is used as a
differential input amplifier. No bias is applied internally.
9
FG
IN
–
FG amplifier output. There is an internal resistive load.
10
FG
OUT
Speed control loop frequency characteristics correction.
14
FC
Continued on next page.
OUT
Lower side saturation
prevention circuit input block
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LB1980 | 3-Phase Brushless Motor Driver for VCR Capstan Motors |
| LB1981 | Three-Phase Brushless Motor Driver |
| LB1981V | Three-Phase Brushless Motor Driver |
| LB1987 | Three-Phase Brushless Motor Driver for VCR Capstan Motors |
| LB1987D | Three-Phase Brushless Motor Driver for VCR Capstan Motors |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LB1980H_07 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:For VCR Capstan Motors 3-Phase Brushless Motor Driver |
| LB1980H-MPB-E | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 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 |
| LB1980H-TRM-E | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 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 |
| LB1980JH | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:3-Phase Brushless Motor Driver |
| LB1980JH-MPB-E | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 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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