參數(shù)資料
型號(hào): LB1989
廠商: Sanyo Electric Co.,Ltd.
英文描述: Three-Phase Sensorless VCR Drum Motor Driver
中文描述: 三相傳感器錄像機(jī)鼓電機(jī)驅(qū)動(dòng)器
文件頁(yè)數(shù): 5/9頁(yè)
文件大?。?/td> 117K
代理商: LB1989
No. 6210-5/9
LB1989
Pin Functions
Pin No.
Pin
Pin voltage
Equivalent circuit
Function
Continued on next page.
Drum motor driver outputs
The lowest potential of the drum motor
driver output transistors. Constant-current
control is implemented by detecting this
voltage.
The current limiter also operates by
detecting this voltage.
27
2
1
UOUT
VOUT
WOUT
RF
26
Driver start/stop control
High: Motor drives operating state
Low: Standby state (power saving mode)
26
S/S
7
V
CC
8 to 13.8 V
Power supply
5
MCOM
8
9
10
Motor coil center input
The coil voltage waveform is detected
referenced to this voltage.
Coil waveform detection comparator inputs
Each phase output is connected through
an internal 10 k
resistor.
UIN
VIN
WIN
11
12
C1
C2
Sawtooth waveform generator capacitor
connection
This sawtooth waveform is used for soft
switching in the coil output waveform.
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