LB1955 データシートの表示（PDF） - SANYO -> Panasonic

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LB1955

Three-Phase Brushless Motor Driver

SANYO -> Panasonic 

LB1955

Pin Functions

Pin No.

23, 24

25, 26

27, 28

16

15

13

11

9

10

8

14

1

2

3

4

5

6

7

18

22

12, 17, 19

20, 21

Pin

UIN1, UIN2

VIN1, VIN2

WIN1, WIN2

UOUT

VOUT

WOUT

LCTR

VCC

VREF

GND

Rf

VG

FC

LIM

VC

PG

FG

FGR

SH

AGC

NC

Function

U phase Hall element input

V phase Hall element input

W phase Hall element input

U phase output

V phase output

W phase output

Pin connected to the center points of the coils that are Y-connected to the U, V, and W outputs.

Power supply

Reference voltage output

GND

Output current detection

Closed loop control gain switching

Speed control loop frequency characteristics correction

Output current limit setting

Speed control

PG waveform output

FG waveform output (FGR shorted to GND)

PG/FG synthesized output (FGR shorted to PG)

PG waveform sample-and-hold circuit capacitor connection

Connection for the capacitor used by the AGC circuit, which holds the input gain at a fixed level.

No connection

Recommended Special Magnetization Waveforms

B ≤ A < 7/6 × B

8/6 × D ≤ C ≤ 10/6 × D

Note: Note that the intersections between the special magnetization and general waveforms and the intersections between pairs of general waveforms must

be set up to be 30° apart.

Hall Input Order

Hall input

Note: The Hall input order must be set up to be W → V → U.

No. 5452-4/7

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