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LB1845

Monolithic Digital IC PWM Current Controlling Stepping Motor Driver

SANYO -> Panasonic 

Ordering number : EN5505D

Monolithic Digital IC

LB1845 PWM Current Controlling

Stepping Motor Driver

Overview

The LB1845 is a PWM current control type stepping motor driver that uses a bipolar drive scheme. It is particularly

suitable for driving carriage and paper feed stepping motors in printers and similar products.

Features

• PWM current control (fixed off time scheme)

• Digital load current selection function

• Sustained output voltage: 45V

• Built-in thermal shutdown circuit

Specifications

Absolute Maximum Ratings at Ta = 25°C

Parameter

Motor supply voltage

Peak output current

Continuous output current

Logic block supply voltage

Logic input voltage range

Emitter output voltage

Allowable power dissipation

Operating temperature

Storage temperature

Symbol

VBB max

IO peak

IO max

VCC

VIN

VE

Pd max1

Pd max2

Topr

Tstg

Conditions

tW ≤ 20µs

Independent IC

With an arbitrarily large heat sink

Ratings

Unit

45

V

1.75

A

1.5

A

7.0

V

-0.3 to VCC

V

1.0

V

3.0

W

20.0

W

-20 to +85

°C

-55 to +150

°C

Any and all SANYO Semiconductor 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 Semiconductor representative

nearest you before usingany SANYO Semiconductor products described or contained herein in such

applications.

SANYO Semiconductor 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 Semiconductor

products described or contained herein.

O1806 MS IM / D3096HA (OT) No.5505-1/9

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