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LB11660FV-MPB-H датащи(PDF) 7 Page - ON Semiconductor

номер детали LB11660FV-MPB-H
подробное описание детали  Half-pre Motor Driver Single-Phase Full-Wave Drive
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производитель  ONSEMI [ON Semiconductor]
домашняя страница  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

LB11660FV-MPB-H датащи(HTML) 7 Page - ON Semiconductor

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*5.Hall sensor input
Lines that are as short as possible must be used to prevent noise from entering the system. The Hall sensor input circuit consists of
a comparator with hysteresis (20mV). We recommend that the Hall sensor input level be at least three times this hysteresis, i.e. at
least 60mVp-p.
*6.PWM oscillator frequency setting capacitor
The PWM oscillator oscillates at f = 23kHz when CP is 200pF and at f = 46kHz when CP is 100pF, and this frequency becomes the
PWM reference frequency.
Note that the PWM frequency is given approximately by the following equation.
f [kHz]
 (4.6×106) ÷C [pF]
*7.FG output
This is an open collector output, and a rotation count detection function can be implemented using this FG output, which
corresponds to the phase switching. This pin must be left open if unused.
*8.HB pin
This pin provides a Hall effect sensor bias constant-voltage output of 1.25V.
*9.RMI pin
This pin is the speed control minimum speed setting.
The minimum output duty is set by R3 and R4. Leave R4 open to have the motor stop when the duty is 0%.
Rotation Control Timing Chart
Minimum
output duty
VTH(V)
PWM
duty(%)
Duty 100%
Duty 0%
VPWML
VPWMH
RMI
CPWM
2.5V
0.5V
PWM control variable speed mode
Full speed mode
0V
On duty
Minimum speed
setting rotation
RMI voltage
VTH voltage
ON
OFF


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