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參數(shù)資料
| 型號(hào)： | L6219R013TR |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | STEPPER MOTOR CONTROLLER, 1 A, PDSO24 |
| 封裝： | SOP-24 |
| 文件頁數(shù)： | 13/16頁 |
| 文件大小： | 211K |
| 代理商： | L6219R013TR |
Block diagram and pins description
L6219R
Note:
ESD on GND, Vs, Vss, OUT 1 A and OUT 2 A is guaranteed up to 1.5 KV (human body
model, 1500 W, 100 pF).
Table 2.
Pin description
Pin #
Name
Description
1,2
Output A
See pins 5,21
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 CT (toff = 1.1 RT CT). See Figure 4
5,21
Output B
Output connection. The output stage is a H bridge formed by four
transistors and four diodes suitable for switching applications
6,19
Ground
See pins 7,18
7,18
Ground
Ground connection. With pins 6 and 19 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 funcional description
10,16
Phase
This TTL-compatible logic inputs 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
11,15
Reference
voltage
A voltage applied to this pin sets the reference voltage of the
comparators, this determining the output current (also thus depending on
Rs and the two inputs input 0 and input 1)
12,14
RC
A parallel RC network connected to this pin sets the OFF time of the
higher power transistors. The pulse generator is a monostable triggered
by the output of the comparators (toff = 1.1 RT CT)
13
Vss - Logic
supply
Supply voltage input for logic circuitry
24
Vs - Load
supply
Supply voltage input for the output stages
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