参数资料
型号: L6219DSA
厂商: STMICROELECTRONICS
元件分类: 运动控制电子
英文描述: STEPPER MOTOR CONTROLLER, 1 A, PDSO24
封装: SO-24
文件页数: 12/15页
文件大小: 187K
代理商: L6219DSA
Block diagram
L6219DSA
Figure 2.
SO24 pins connection (top view)
Table 3.
Pin functions
Pin #
Name
Description
1, 21
Output of bridge 1
See pins 2, 5
3, 23
Sense resistor
Connection to lower emitters of output stage for insertion of
current sense resistor
4, 22
Comparator input
Input connected to the comparators. The voltage across the
sense resistor is feedback to this input throught the low pass
filter RC CC. The higher power transistors are disabled
when the sense voltage exceeds the reference voltage of
the selected comparator. When this occurs the current
decays for a time set by RT C
T (t
off = 1.1 RT CT). See
2, 5
Output of bridge 2
Output Connection. The output stage is a H bridge formed
by four transistors and four diodes suitable for switching
applications
6, 7, 18, 19
Ground
Ground connection, they also conducts heat from die to
printed circuit copper
8, 20
Input 0
See input 1 (pins 9, 17)
9, 17
Input 1
These pins and pins 8, 20 (input 0) are logic inputs which
select the outputs of the comparators to set the current
level. Current also depends on the sensing resistor and
reference voltage. See functional description
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