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參數(shù)資料
| 型號： | CS3717AGNF16 |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 運動控制電子 |
| 英文描述： | STEPPER MOTOR CONTROLLER, 1 A, PDIP16 |
| 封裝： | 0.300 INCH, PLASTIC, MS-001, DIP-16 |
| 文件頁數(shù)： | 3/8頁 |
| 文件大?。?/td> | 72K |
| 代理商： | CS3717AGNF16 |
3
Package Pin Description
PACKAGE PIN #
PIN SYMBOL
FUNCTION
Truth Table
IN0
IN1
Output Current
H
No Current
L
H
Low Current
H
L
Medium Current
L
High Current
16L
(Internally Fused Leads)
1
OUT B
Output connection with OUTA. The output stage is a “H”
bridge formed by four transistors and four diodes suitable for
switching applications.
2
Pulse
A parallel RC network connected to this pin sets the OFF time of
the lower power transistors. The pulse generator is a monos-
table triggered by the rising edge of the output of the compara-
tors (tOFF = 0.69 RTCT).
3VDDB
Supply voltage input for half output stage.
4, 5, 12, 13
Gnd
Ground connection. Also conducts heat from die to printed
circuit copper.
6VCC
Supply voltage input for logic circuitry.
7
IN1
This pin and IN0 are logic inputs which select the outputs of the
three comparators to set the current level. Current also depends
on the sensing resistor and reference voltage. See truth table.
8
DIRECTION
This TTL-compatible logic input sets the direction of current
flow through the load. A high level causes current to flow from
OUTA (source) to OUTB (sink). A Schmitt trigger on this input
provides good noise immunity and a delay circuit prevents out-
put stage short circuits during switching.
9
IN0
See IN1.
10
Comp In
Input connected to the three comparators. The voltage across the
sense resistor is fed back to this input through the low pass filter
RCCC. The lower power transistors are disabled when the sense
voltage exceeds the reference voltage of the selected compara-
tor. When this occurs the current decays for a time set by RTCT,
tOFF = 0.69 RTCT.
11
VREF
A voltage applied to this pin sets the reference voltage of the
three comparators, thus determining the output current (also
dependent on RSense and the two inputs IN 0 and IN 1).
14
VDDA
Supply voltage input for half output stage.
15
OUT A
See OUTB.
16
Sense
Connection to lower emitters of output stage for insertion of
current sense resistor.
CS3717A
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