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參數(shù)資料
| 型號(hào)： | PBL3717A |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | KPTC6F10-6SC |
| 中文描述： | 步進(jìn)電機(jī)驅(qū)動(dòng)器 |
| 文件頁數(shù)： | 2/11頁 |
| 文件大?。?/td> | 187K |
| 代理商： | PBL3717A |
PIN FUNCTIONS
N
°
1
Name
UTPUT B
Function
Output Connection (with pin 15). The output stage is a ”H” bridge formed by four
transistors and four diodes suitable for switching applications.
A parallel RC network connected to this pin sets the OFF time of the lower power
transistors. The pulse generator is a monostable triggered by the rising edge of
the output of the comparators (t
off
= 0.69 R
T
C
T
).
Supply Voltage Input for Half Output Stage
See also pin 14.
Ground Connection. With pins 5, 12 and 13 also conducts heat from die to
printed circuit copper.
See pin 4.
Supply Voltage Input for Logic Circuitry
This pin and pin 9 (INPUT 0) 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.
This TTL-compatible logic input sets the direction of current flow through the
load. A high level causes current to flow from OUTPUT A (source) to OUTPUT
B (sink). A schmitt trigger on this input provides good noise immunity and a delay
circuit prevents output stage short circuits during switching.
See INPUT 1 (pin 7) .
Input connected to the three comparators. The voltage across the sense resistor
is feedback to this input through the low pass filter R
C
C
C
. The lower power
transistor 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
R
T
C
T
, t
off
= 0.69 R
T
C
T
.
A voltage applied to this pin sets the reference voltage of the three comparators,
this determining the output current (also thus depending on R
s
and the two inputs
INPUT 0 and INPUT 1).
See pin 4.
See pin 4.
Supply Voltage Input for Half Output Stage. See also pin 13.
See pin 1.
Connection to Lower Emitters of Output Stage for Insertion of Current Sense
Resistor
2
PULSE TIME
3
SUPPLY VOLTAGE B
4
GROUND
5
6
7
GROUND
LOGIC SUPPLY
INPUT 1
8
PHASE
9
10
INPUT 0
COMPARATOR
INPUT
11
REFERENCE
12
13
14
15
16
GROUND
GROUND
SUPPLY VOLTAGE A
OUTPUT A
SENSE RESISTOR
TRUTH TABLE
Input 0 (pin 9)
H
L
H
L
Input 1 (pin 7)
H
H
L
L
No Current
Low Current
Medium Current
High Current
PBL3717A
2/11
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