LB1845 查看數據表（PDF） - SANYO -> Panasonic

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产品描述 (功能)

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LB1845

Monolithic Digital IC PWM Current Controlling Stepping Motor Driver

SANYO -> Panasonic 

Block Diagram

VCC

LB1845

SBD

OUT 1B

VBB

SBD

OUT 1A VBB

VBB

SBD

OUT 2B

SBD

OUT 2A

PHASE1

–

+

VREF1

–

ENABLE1 +

I01

–

+

I11

–

+

–

ONE

+

SHOT

ONE

SHOT

E1

SENSE1

1kΩ

RC1

D-GND

GND

RC2

E2

SENSE2

1kΩ

PHASE2

VREF2

ENABLE2

I02

I12

Application Circuit Diagram

100µF Cbb

VBB

1

SENSE1

2

Cc

E1

3

Re

D-GND

4

SBD

Motor

NC

5

OUT1B

6

SBD

OUT1A

7

SBD

SBD

OUT2B

8

OUT2A

9

NC

10

D-GND

11

Re

E2

12

SENSE2

13

Cc

VBB

14

ILB00882

Ccc

VCC

28

Ct

RC1

27

VREF1 Rt

26

PHASE1

25

ENABLE1

24

I11

23

I01

22

I02

21

I12

20

ENABLE2

19

PHASE2

18

VREF2

17

RC2 R1

16

GND

15

Ct

Off time setting

values

toff≈CtRt

Re=0.82Ω(1W)

VREF=5V

Rt=56kΩ

Ct=470pF

Rc=1kΩ

Cc=330pF

Cbb=100µF

ILB00883

No.5505-4/9

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