LB1950 데이터 시트보기 (PDF) - SANYO -> Panasonic

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LB1950

Three-Phase Brushless Sensorless Motor Driver

SANYO -> Panasonic 

Continued from preceding page.

Pin No.

Symbol

Pin voltage

18

FGOUT

LB1950V

Equivalent circuit

Function

FG amplifier output

19

OSC

Connection for the triangular wave oscillator capacitor

that is used to forcibly generate the motor startup

waveform at startup.

20

FC

21

FILTER

22

RSAT1

23

RSAT2

24

GND

• Frequency characteristics determination

• Current control system closed loop oscillation can be

stopped by connecting a capacitor between this pin

and ground.

Connecting a capacitor between this pin and ground

causes the coil output saturation prevention function to

operate. In this state, the motor voltage is controlled by

controlling the VS pin. Also, the torque ripple correction

can be adjusted by changing the value of the external

capacitor.

The residual output voltage setting can be increased by

connecting one, the other, or both of these pins to

ground.

Ground for all systems other than the output system.

Continued on next page.

No. 5340-6/10

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