LB11995H 查看數據表（PDF） - SANYO -> Panasonic

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LB11995H

Three-Phase Brushless Motor Driver for CD-ROM Spindle Drive

SANYO -> Panasonic 

LB11995H

Pin Descriptions

Pin number Pin name Pin voltage

26

VCC2

4V to 13.6V

25

VCC3

4V to 13.6V

22

VCC1

4V to 6V

14

RS

13

FG

20

UIN1

21

UIN2

18

VIN1

1.2V to

19

VIN2

VCC1–1V

16

WIN1

17

WIN2

15

VH

11

S/S

0V to VCC1

8

SIG GND

6

FC

Equivalent circuit

Pin function

Source side predrive voltage supply

pin

Constant current control amplifier

voltage supply pin

Power supply pin for all circuits

except output transistors, source

predriver, and constant current

control amplifier

100µA

10kΩ

VCC1

13 14

Reverse detector pin

Forward rotation: High

Reverse rotation: Low

A12354

1 Hall element waveform Schmitt

comparator composite output

20 200Ω

18

16

25µA

75µA

U phase Hall element input and

reverse detector U phase Schmitt

VCC1 comparator input pin

25µA

Logic High indicates UIN1 > UIN2.

21

19

200Ω 17

V phase Hall element input and

reverse detector V phase Schmitt

comparator input pin

Logic High indicates VIN1 > VIN2.

25µA

W phase Hall element input and

reverse detector W phase Schmitt

A12355

comparator input pin

Logic High indicates WIN1 > WIN2.

VCC1

Hall element lower side bias voltage

supply pin

15

30kΩ

2kΩ

75kΩ

11

50kΩ

A12356

VCC1

A12357

VCC1

2kΩ

6

20kΩ 5kΩ

A12358

When this pin is at 0.7V or lower, or

when it is open, all circuits are

inactive. When driving motor, set

this pin to 2V or higher.

GND pin for all circuits except

output

Control loop frequency compensa-

tor pin. Connecting a capacitor

between this pin and GND prevents

closed loop oscillation in current

limiting circuitry.

Continued on next page

No. 6116-8/10

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