LB1916 Просмотр технического описания (PDF) - SANYO -> Panasonic

Номер в каталоге

Компоненты Описание

Список матч

LB1916

CD-ROM Spindle Motor Driver

SANYO -> Panasonic 

Pin Functions

Pin No.

3, 4,

20, 21

Pin

GND

Pin voltage

• GND

LB1916

Pin function

23

UOUT

22

VOUT

19

WOUT

• Outputs

• Connect these pins to the motor.

Equivalent circuit

17

Rf

• Ground for the output transistors

• The output current can be detected as a voltage by connecting a

resistor between the Rf pin and ground. This can then be used to

implement overcurrent protection.

18, 24,

7

NC

• No connection

• Power supply for circuits other than the output block

16

VCC2 4.3 to 6.5 V • The power supply provided by this pin must be well stabilized so

that noise does not occur.

15

Z1

14

Z2

• Connections for the resistors that set the front-end amplifier gain

• Z1 and Z2 are common, and have a resistance of between a few

tens of kΩ and a few hundreds of kΩ.

• The gain is about 6 dB.

• VC is the speed control pin.

When VC > VCREF: Forward rotation

13

12

VC

VCREF

—VC—C—2 ±1.0

2

When VC < VCREF: Reverse rotation

The output voltage is controlled by the VC voltage.

• VCREF determines the motor control stop voltage. Normally, this

will be VCC2/2.

• I/O gain switching input

11

10

GC1

GC2

0 to VCC2

• GC1 switches Z1 and Z2 for the front end amplifier. When GC1 is

low, Z1 is selected, and when GC1 is high, Z2 is selected. GC2

switches the amplifier in the second stage.

Continued on next page.

No. 5653-5/7

Share Link: