LB1945H

No. 6193-1/7

LB1945H

Package Dimensions

unit: mm

3233-HSOP28H

Preliminary

Features

• PWM current control (external excitation)

• Load current digital selection (1–2, W1–2, and 2 phase

excitation drives possible)

• Built-in upper/lower diode

• Simultaneous ON prevention function (feedthrough

current prevention)

• Built-in thermal shutdown circuit

• Built-in noise canceler

82799RM(KI)

Ordering number : ENN*6193

Monolithic Digital IC

PWM Current Control Type Stepping Motor Driver

[LB1945H]

SANYO : HSOP28H

Specifications

Absolute Maximum Ratings at Ta = 25

Parameter

Symbol

Conditions

Ratings

Unit

Maximum motor supply voltage

30

V

Output peak current

tw

≤ 20 µs

1.0

A

Output continuous current

0.8

A

Logic supply voltage

6.0

V

Logic input voltage range

–0.3 to VCC

V

Emitter output voltage

1.0

V

Allowable power dissipation

Pd max

Ta = 25˚C, with specified substrate*

1.9

W

Operating temperature

Topr

–20 to +90

°C

Storage temperature

Tstg

–55 to +150

°C

Allowable Operating Ranges at Ta = 25

Parameter

Symbol

Conditions

Ratings

Unit

Motor supply voltage

10 to 28

V

Logic supply voltage

4.75 to 5.25

V

Reference voltage

1.5 to 5.0

V

6.2

28

15

114

0.8

15.3

2.7

0.3

0.25

0.85

Any and all SANYO products described or contained herein do not have specifications that can handle

applications that require extremely high levels of reliability, such as life-support systems, aircraft's

control systems, or other applications whose failure can be reasonably expected to result in serious

physical and/or material damage. Consult with your SANYO representative nearest you before using

any SANYO products described or contained herein in such applications.

SANYO assumes no responsibility for equipment failures that result from using products at values that

exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other

parameters) listed in products specifications of any and all SANYO products described or contained

herein.

SANYO Electric Co.,Ltd. Semiconductor Company

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN