LB11972V 데이터 시트보기 (PDF) - SANYO -> Panasonic

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LB11972V

3-Phase Sensorless Motor Driver for Fan Motor Driver for Refrigerator

SANYO -> Panasonic 

Continued from preceding page.

Pin No.

Pin

Symbol

Pin

Voltage

4

MCOM

6

UIN

7

VIN

8

WIN

9

C1

LB11972V

Equivalent Circuit Diagram

10

C2

11

CX

Pin Description

Motor coil middle input pin.

Coil voltage waveform is detected

with reference to this voltage.

Coil waveform detection comparator

input pin

Connected to the output of each

phase via built-in resistor of 10kΩ.

Pin connected to the capacitor to

generate triangular wave.

This triangular wave is used for soft

switching of the coil output waveform.

Value of the capacitor connected to

this pin and GND in the VCO circuit,

determining the operation frequency

range and minimum operation

frequency.

12

VCOIN

VCO circuit voltage input pin.

Enters the PCOUT pin voltage after

CR filtering

Continued on next page.

No.8797-5/8

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