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參數(shù)資料
| 型號： | LB1981V |
| 元件分類： | 運動控制電子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 1 A, PDSO30 |
| 封裝： | SSOP-30 |
| 文件頁數(shù)： | 4/9頁 |
| 文件大?。?/td> | 239K |
| 代理商： | LB1981V |
LB1981V
No. 5917-4/9
Pin Descriptions
Pin number
3
4
5
6
7
8
9
10
Pin name
STBY
SEL CSLP
FRC
VS
VCC2
VCC1
CLSP1
CLSP2
Pin voltage
VCC1 max
–0.2V min
VCC1 max
–0.2V min
VCC1 max
–0.2V min
0V to VCC2
2.7V to 10V
2.7V to 6V
Equivalent circuit
Pin function
When this pin is at 0.7V or
less or when it is open, only
the FG/PG amplifier operates.
In the motor drive state, the
pin should be at 2V or higher.
CSLP pin charge/discharge
current switching pin.
Setting this pin to 2V or higher
switches the triangular wave
slope that determines soft
switching.
Motor forward/reverse
switching pin.
Low: reverse
(–0.2V to +0.7V or open)
High: forward
(2V to VCC1)
Power supply pin for
determining output amplitude
by supplying motor voltage.
Must be lower than VCC2
voltage.
Power supply pin for supplying
source side predriver voltage
and coil waveform detect
comparator voltage.
Power supply pin for circuits
except motor voltage, source
side predriver voltage, and coil
waveform detect comparator
voltage.
Pins for connecting triangular
wave oscillator capacitor. This
triangular wave coil output
performs waveform soft
switching.
Continued on next page
3
100k
Ω
100k
Ω
VCC1
A10858
4
100k
Ω
100k
Ω
VCC1
A10859
5
50k
Ω
50k
Ω
VCC1
A10860
20
μA
9
10
4
μA20μA
8
μA
1k
Ω
VCC1
A10861
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