LB11873 Datasheet, PDF (8/14 Pages) Sanyo Semicon Device – Monolithic Digital IC For Polygonal Mirror Motors Three-Phase Brushless Motor Driver

LB11873
Continued from preceding page.
Pin No.
Pin
Description
13
FCP
Current limiter circuit frequency characteristics
correction
Connect a capacitor (about 0.01μF to 0.1μF)
between this pin and ground.
The output duty is determined by comparing the
voltage at this pin with the PWM oscillator
waveform.
VREG
Equivalent Circuit
300Ω
13
14
PD
Phase comparator output
The phase error is converted to a pulse duty and
output from this pin.
VREG
300Ω
14
15
EI
Error amplifier input
VREG
16
EO
Error amplifier output
VREG
300Ω
15
17
FGFIL FG filter
This pin is normally left open. If noise on the FG
VREG
signal is a problem, connect a capacitor (about
20pF or smaller) between this pin and ground.
40kΩ
16
300Ω
17
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