Datasheet > PBL37711SO

PBL37711SO

更新时间： 2024-11-09 22:26:51

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	157K
描述
Precision Stepper Motor Driver

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PBL37711SO 数据手册

February 1999

PBL 3771/1

Precision Stepper Motor Driver

Description

Key Features

The PBL 3771/1 is a switch-mode, constant-current driver IC (chopper) with two

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

developed for use in microstepping applications in conjunction with the matching dual

DAC (Digital-to-Analog Converter) PBM 3960. A complete driver system consists of

these two ICs, a few passive components and a microprocessor for generation of the

proper control and data codes required for microstepping.

•

Dual chopper driver in a single

package.

•

650 mA output current per channel.

Close matching between channels for

high microstepping accuracy.

The PBL 3771/1 contains a clock oscillator, which is common for both driver

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

two H-bridges with internal recirculation diodes. Voltage supply requirements are +5 V

for logic and +10 to +45 V for the motor. Maximum output current is 650 mA per

channel.

•

Selectable slow/fast current decay for

improved high-speed microstepping.

•

Improved low-level linearity.

Specially matched to Dual DAC

PBM 3960.

A special logic function is used to select slow or fast current decay in the output

stage for improved high-speed microstepping.

The close match between the two driver channels guarantees consistent output

current ratios and motor positioning accuracy.

•

Selection of packages, 22-pin

“batwing” DIP, 24 pin "batwing" SOIC

or 28-lead PLCC with lead-frame for

heat-sinking through PC board

copper.

Phase

PBL 3771/1

–

Logic

PBL

3771/1

MM1

MM2

–

Logic

–

PBL 3771/1

Phase

GND

28-pin PLCC package

22-pin plastic DIP package

24-pin SO package

Figure 1. Block diagram.

12 3 4 5 6 7 8

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PBL37717N	ERICSSON	获取价格	Stepper Motor Controller, 1.2A, BIPolar, PDIP16, BATWING, PLASTIC, DIP-16
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PBL37717QN	ERICSSON	获取价格	Stepper Motor Controller, 1.2A, BIPolar, PQCC28, PLASTIC, LCC-28
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PBL37717SO	ERICSSON	获取价格	Stepper Motor Controller, 1.2A, BIPolar, PDSO20, BATWING, SO-20
PBL37717SO:T	ERICSSON	获取价格	STEPPER MOTOR CONTROLLER, 1.2A, PDSO20, BATWING, SO-20
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PBL3771QN	ERICSSON	获取价格	Precision Stepper Motor Driver
PBL3771QN:T	ERICSSON	获取价格	Stepper Motor Controller, 0.7A, PQCC28, PLASTIC, LCC-28