欢迎访问ic37.com |
会员登录 免费注册
发布采购

L6219DSA 参数 Datasheet PDF下载

L6219DSA图片预览
型号: L6219DSA
PDF下载: 下载PDF文件 查看货源
内容描述: 步进电机驱动汽车范围 [STEPPER MOTOR DRIVER FOR AUTOMOTIVE RANGE]
分类和应用: 电机驱动
文件页数/大小: 8 页 / 69 K
品牌: STMICROELECTRONICS [ STMICROELECTRONICS ]
 浏览型号L6219DSA的Datasheet PDF文件第2页浏览型号L6219DSA的Datasheet PDF文件第3页浏览型号L6219DSA的Datasheet PDF文件第4页浏览型号L6219DSA的Datasheet PDF文件第5页浏览型号L6219DSA的Datasheet PDF文件第6页浏览型号L6219DSA的Datasheet PDF文件第7页浏览型号L6219DSA的Datasheet PDF文件第8页  
®
L6219DSA
STEPPER MOTOR DRIVER FOR AUTOMOTIVE RANGE
ABLE TO DRIVE BOTH WINDINGS OF BIPO-
LAR STEPPER MOTOR
OUTPUT CURRENT UP TO 750mA EACH
WINDING
WIDE VOLTAGE RANGE 10V TO 46V
HALF-STEP, FULL-STEP AND MICROSTEPP-
ING MODE
BUILT-IN PROTECTION DIODES
INTERNAL PWM CURRENT CONTROL
LOW OUTPUT SATURATION VOLTAGE
DESIGNED FOR UNSTABILIZED MOTOR
SUPPLY VOLTAGE
INTERNAL THERMAL SHUTDOWN
DESCRIPTION
The L6219DSA is a bipolar monolithic integrated
circuits intended to control and drive both winding
of a bipolar stepper motor or bidirectionally con-
trol two DC motors.
The L6219DSA with a few external components
form a complete control and drive circuit for LS-
TTL or microprocessor controlled stepper motor
system.
The power stage is a dual full bridge capable of
sustaining 46V and including four diodes for cur-
rent recirculation.
BLOCK DIAGRAM
SO20+2+2
ORDERING NUMBER:
L6219DSA
A cross conduction protection is provided to avoid
simultaneous cross conduction during switching
current direction.
An internal pulse-width-modulation (PWM) con-
trols the output current to 750mA with peak start-
up current up to 1A.
Wide range of current control from 750mA (each
bridge) is permitted by means of two logic inputs
and an external voltage reference. A phase input
to each bridge determines the load current direc-
tion.
A thermal protection circuitry disables the outputs
if the chip temperature exceeds safe operating
limits.
November 1998
1/8