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PBL3774QNS

更新时间： 2024-09-20 19:50:51
品牌 Logo 应用领域
爱立信 - ERICSSON 电动机控制
页数 文件大小 规格书
8页 132K
描述
Stepper Motor Controller, 1.2A, PQCC28, POWER, PLASTIC, LCC-28

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中文翻译

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PBL3774QNS 技术参数

生命周期：Obsolete零件包装代码：QLCC
包装说明：QCCJ,针数：28
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.82
模拟集成电路 - 其他类型：STEPPER MOTOR CONTROLLERJESD-30 代码：S-PQCC-J28
长度：11.505 mm功能数量：1
端子数量：28最大输出电流：1.2 A
封装主体材料：PLASTIC/EPOXY封装代码：QCCJ
封装形状：SQUARE封装形式：CHIP CARRIER
认证状态：Not Qualified座面最大高度：4.57 mm
最大供电电压 (Vsup)：5.25 V最小供电电压 (Vsup)：4.75 V
标称供电电压 (Vsup)：5 V表面贴装：YES
端子形式：J BEND端子节距：1.27 mm
端子位置：QUAD宽度：11.505 mm
Base Number Matches：1

PBL3774QNS 数据手册

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February 1999  
PBL 3774/1  
Dual Stepper Motor Driver  
Key Features  
Description  
•
Dual chopper driver in a single  
package.  
The PBL 3774/1 is a switch-mode (chopper), constant-current driver IC with two chan-  
nels, one for each winding of a two-phase stepper motor. The circuit is similar to  
Ericsson´s PBL 3771/1 and PBL 3772/1. While all Dual stepper motor drivers are  
optimized for microstepping applications, the PBL 3774/1 is equipped with a TTL level  
compatible Disable input to simplify half-stepping operation.  
•
•
Operation at -40 °C.  
1000 mA continuous output current  
per channel.  
The circuit is well suited for microstepping applications together with the matching  
dual DAC (Digital-to-Analog Converter) PBM 3960/1. 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.  
In full/halfstepping applications, Ericsson Component’s PBD 3517/1 can be used as  
a phase generator (translator) to derive the necessary signals for the PBL 3774/1.  
The PBL 3774/1 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.  
•
•
•
•
Low power dissipation, 2.6 W at  
2 x 750 mA output current.  
Close matching between channels for  
high microstepping accuracy.  
Specially matched to the Dual DAC  
PBM 3960.  
Plastic 22-pin batwing DIP package  
or 28-pin power PLCC package with  
lead-frame for heatsinking through  
PC board copper.  
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.  
E
Phase  
Dis  
V
C
1
1
1
1
R1  
PBL  
PBL 3774/1  
3774/1  
–
V
V
CC  
CC  
Q
R
S
+
M
M
A1  
B1  
Logic  
V
V
MM1  
MM2  
+
–
PBL4/1  
M
M
B2  
A2  
Logic  
RC  
S
R
Q
+
–
28-pin PLCC package  
Dis  
E
2
Phase  
V
C
GND  
2
2
2
R2  
22-pin plastic DIL package  
Figure 1. Block diagram.  
1
12345678

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