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參數(shù)資料
| 型號： | CS4161YN8 |
| 英文描述： | Stepper Motor Controller/Driver |
| 中文描述： | 步進電機控制器/驅(qū)動器 |
| 文件頁數(shù)： | 4/8頁 |
| 文件大小： | 59K |
| 代理商： | CS4161YN8 |
CS4161
http://onsemi.com
4
CIRCUIT OPERATION
SPEED SENSOR INPUT
SENSOR is a PNP comparator input which accepts either
a sine wave or a square wave input. This input is protected
from excursions above V
CC
as well as any below ground as
long as the current is limited to 1.5 mA. It has an active
clamp set to zero volts to prevent negative input voltages
from disrupting normal operation. The sensor input can
withstand 150 V
DC
as long as the input current is limited to
1.5 mA max. using a series resistor of 100 k
.
COIL DRIVER OUTPUTS
Simultaneously energizing the source and sink on either
leg is not permitted, i.e. Q1 & Q2 or Q3 & Q4 cannot be
energized simultaneously.
Circuit function is not affected by inductive transients due
to coil loads as specified in the Transition States section.
The transition states occur as indicated in Table 1 without
any intermediate states permitted.
Table 1. Transition States
State
Coil A
Coil B
0
+
+
1
OFF
+
2
–
+
3
–
OFF
4
–
–
5
OFF
–
6
+
–
7
+
OFF
The polarity definition for the coil driver outputs is as
follows:
Polarity
Connect Coil +
Connect Coil –
Positive (+)
V
CC
GND
GND
Negative (–)
V
CC
DIVIDER SELECT INPUT
The speed sensor input frequency is either divided by one
or divided by two depending on the state of the SELECT
input as follows:
Logic 0 = divide by 2.
Logic 1 = divide by 1.
Q1
Q2
Q3
Q4
Short
Circuit
Sense
Resistor
Short
Circuit
Sense
Resistor
V
CC
Coil
GND
Overvoltage
and
Short Circuit
Protection
Figure 2. Coil Driver Output
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