LB11870 查看數據表（PDF） - SANYO -> Panasonic

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LB11870

Monolithic Digital IC For Polygonal Mirror Motors Three-Phase Brushless Motor Driver

SANYO -> Panasonic 

LB11870

Continued from preceding page.

Pin No. Symbol

Pin Description

19

FC

Frequency characteristics correction for the

current control circuit.

Insert a capacitor (about 0.01 to 0.1μF)

between this pin and ground.

The output duty is determined by comparing

the voltage on this pin to the PWM oscillator

waveform.

VREG

Equivalent Circuit

300Ω

19

21

PD

Phase comparator output.

The phase error is converted to a pulse duty

and output from this pin.

VREG

300Ω

21

22

EI

Error amplifier input.

VREG

23

EO

Error amplifier output.

VREG

24

TOC

Torque command voltage input.

This pin is normally connected to the EO pin.

When the TOC voltage falls, the lower output

transistor on duty is increased.

VREG

300Ω

22

23

300Ω

24

Continued on next page.

No.7256-8/14

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