LB1895 Ver la hoja de datos (PDF) - SANYO -> Panasonic

Número de pieza

componentes Descripción

Fabricante

LB1895

3-Phase Brushless Motor Driver for CD-ROM Spindle Motors

SANYO -> Panasonic 

Pin Descriptions

Note: Numbers within ( ) are for LB1895D

Pin No. Symbol

Voltage

4

VCC2

4 V to 13.6 V

6 (5) VCC3

2 V to 13.6 V

LB1895, 1895D

Equivalent circuit

8 (10) VCC1

4 V to 6 V

9 (11) VCOMPO

10 (12) WCOMPO

12 (13) UIN1

13 (14) UIN2

1.2 V to

VCC1 –1 V

14 (15) VIN1

15 (16) VIN2

16 (17) WIN1

1.2 V to

VCC1 –1 V

17 (18) WIN2

18 (19) VH

150µA

10kΩ

VCC1

9 10

(11, 12)

A06717

12

200Ω

(13)

25µA

VCC1

13

200Ω

(14)

25µA

A06718

14

200Ω

16

(15)

(17)

25µA

25µA

VCC1

25µA

15

200Ω 17

(16)

(18)

A06719

75µA

30kΩ

2kΩ

VCC1

18

(19)

A06720

Description

Supply pin that provides pre-drive

voltage for the source side.

Supply pin that provides voltage

for the constant current control

amplifier.

Supply pin that provides voltage

for all circuits except the output

transistor, source-side pre-drive,

and constant current control

amplifier.

V-phase Hall element waveform

Schmitt comparator output pin.

W-phase Hall element waveform

Schmitt comparator output pin.

U-phase Hall element input pin.

Logic HIGH is represented by

UIN1 > UIN2.

V-phase Hall element input pin,

and V-phase Schmitt comparator

input pin for reverse detection.

Logic HIGH is represented by

VIN1 > VIN2.

W-phase Hall element input pin,

and W-phase Schmitt comparator

input pin for reverse detection.

Logic HIGH is represented by

WIN1 > WIN2.

This pin provides the lower bias

voltage for the Hall element.

Continued on next page.

No.5634-7/12

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