PBL3775QN

更新时间： 2024-11-07 22:22:11

品牌	Logo	应用领域
爱立信 - ERICSSON		驱动器电机
页数	文件大小	规格书
8页	165K
描述
Dual Stepper Motor Driver

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数据手册

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PBL3775QN 数据手册

February 1999

PBL 3775/1

Dual Stepper Motor Driver

Description

Key Features

The PBL 3775/1 is a switch-mode (chopper), constant-current driver IC with two

channels, one for each winding of a two-phase stepper motor. The circuit is similar to

Ericsson´s PBL 3773/1. While several of Ericsson´s dual stepper motor drivers are

optimized for micro-stepping applications, PBL 3775/1 is equipped with a disable

input to simplify half-stepping operation.

The PBL 3775/1 contains a clock oscillator, which is common for both driver

channels, a set of comparators and flip-flops implementing the switching control, and

two output H-bridges, including recirculation diodes.

•

Dual chopper driver in a single

package.

•

Operation down to -40°C.

750 mA continuous output current

per channel.

•

Low power dissipation, 2.0 W at

2 x 500 mA output current.

Voltage supply requirements are + 5 V for logic and + 10 to + 45 V for the motor.

The close match between the two driver channels guarantees consistent output

current ratios and motor positioning accuracy.

Close matching between channels

for high microstepping accuracy.

Digital filter on chip eliminates

external filtering components.

Plastic 22-pin batwing DIL package,

24-pin SOIC batwing or 28-pin power

PLCC. All with lead-frame for

heatsinking through PC board

copper.

Phase

Dis

PBL 3775/1

PBL3775/1

–

PBL

3775/1

Logic

MM1

MM2

–

Logic

PBL 3775/1

–

28-pin PLCC package

22-pin plastic DIP package

24-pin SO package

Dis

Phase

GND

Figure 1. Block diagram

12 3 4 5 6 7 8

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