參數(shù)資料
型號(hào): UC2717Q
英文描述: SINGLE CHANNEL HIGH SIDE SOLID STATE RELAY
中文描述: 步進(jìn)電機(jī)控制器/驅(qū)動(dòng)器
文件頁數(shù): 4/9頁
文件大?。?/td> 547K
代理商: UC2717Q
I
0
0
1
0
1
I
1
0
0
1
1
CURRENT LEVEL
100%
60%
19%
Current Inhibit
Current Control:
The voltage divider, comparators and
monostable provide a means for current sensing and
control. The two bit input (I
0
, I
1
) logic selects the desired
comparator. The monostable controls the off time and
therefore the magnitude of the current decrease. The
time duration is determined by R
T
and C
T
connected to
the timing terminal (pin 2). The reference terminal (pin
11) provides a means of continuously varying the cur-
rent for situations requiring half-stepping and micro-
stepping. The relationship between the logic input
signals at pin 7 and 9 in reference to the current level is
shown in Table 1. The values of the different current lev-
els are determined by the reference voltage together
with the value of the external sense resistor R
S
(pin 16).
Single-Pulse Generator:
The pulse generator is a
monostable triggered on the positive going edge of the
comparator. Its output is high during the pulse time and
this pulse switches off the power feed to the motor wind-
ing causing the current to decay. The time is determined
by the external timing components R
T
and C
T
as:
T
OFF
= 0.69 R
T
C
T
If a new trigger signal should occur during T
OFF
, it is ig-
nored.
Figure 6
Figure 7:
Simplified Schematic of Output Stage
UC1717
UC2717
UC3717
Note: Dashed lines indicate current decay paths.
4
Powered by ICminer.com Electronic-Library Service CopyRight 2003
相關(guān)PDF資料
PDF描述
UC2717QTR HIGH SIDE DRIVER
UC37131D Push-pull four channel driver with diodes
UC37131DTR Push-pull four channel driver with diodes
UC37131N Push-pull four channel drivers
UC37132D PUSH-PULL FOUR CHANNEL DRIVER WITH DIODES
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
UC2717QTR 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Stepper Motor Controller/Driver
UC2724 制造商:TI 制造商全稱:Texas Instruments 功能描述:Isolated Drive Transmitter
UC2724DW 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Transformer Driver
UC2724DWTR 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Transformer Driver
UC2724N 制造商:Rochester Electronics LLC 功能描述:- Bulk