LB1945H データシートの表示（PDF） - SANYO -> Panasonic

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LB1945H

PWM Current Control Type Stepping Motor Driver

SANYO -> Panasonic 

Truth Table

ENABLE

PHASE

L

H

L

L

H

−

OUTA

H

L

OFF

OUTA

L

H

OFF

LB1945H

I1

I2

Output current

L

L

Vref / (10 × RE) = IOUT

H

L

Vref / (15 × RE) = IOUT × 2/3

L

H

Vref / (30 × RE) = IOUT × 1/3

H

H

0

Note: Output is OFF when ENABLE = H or when I1 = I2 = H.

Pin Function

Pin No. Pin name

7

VBB1

24

VBB2

5

E1

23 E2

2

OUTA

1

OUTA

27

OUTB

28

OUTB

14 GND

15 S-GND

6

D-GND

22 D-GND

21 CR

13

VREF1

16

VREF2

9

PHASE1

20 PHASE2

10 ENABLE1

19 ENABLE2

12,11

17,18

8

IA1,IA2

IB1,IB2

VCC

Function

Output stage power supply voltage pin.

Cathode pin for the upper-side diodes.

Insert resistor RE between these pins and ground to control set current.

Output pins.

Ground pin.

Sense ground pin.

Lower-side internal diode ground (anode).

Triangular wave chopping with CR constant setting.

Triangular wave OFF time is noise cancel time.

Output current setting pins.

(Output current is set by inputting a 1.5V to 7.5V voltage.)

Output phase select input pin.

High input: OUTA = H, OUTA = L

Low input: OUTA = L, OUTA = H

Output ON/OFF setting input pins.

High input: output OFF

Low input: output ON

Output current setting digital input pins.

Current is set to 1/3, 2/3, 1 by High and Low combinations.

Logic block power supply voltage pin.

No.6193-5/7

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