參數(shù)資料
型號: TB62201AFG
廠商: Toshiba Corporation
英文描述: Dual-Stepping Motor Driver IC for OA Equipment Using PWM Chopper Type
中文描述: 雙辦公自動化設備步進馬達驅(qū)動IC用PWM斬波型
文件頁數(shù): 53/89頁
文件大?。?/td> 1423K
代理商: TB62201AFG
TB62201AFG
2005-04-04
53
STROBE Signal, Internal CR CLK, and Output Current Waveform
(When STROBE signal is input in SLOW DECAY MODE)
When STROBE signal is input, the chopping counter (CR-CLK counter) is forced to reset at the next
CR-CLK timing.
Because of this, compared with a method in which the counter is not reset, response to the input data is
faster.
(The delay time, the theoretical value in the logic portion, is expected to be a one-cycle CR waveform:
1.25
μ
s @ 100 kHz CHOPPING.)
When the C-CLK counter is reset due to STROBE signal input, CHARGE MODE is entered momentarily
due to current comparison.
Note: In FAST DECAY MODE, too, CHARGE MODE is entered momentarily due to current comparison.
MDT
RNF
NF
Set current
value
Set current
value
STROBE signal input
I
out
f
chop
f
chop
f
chop
37.5% MIXED DECAY MODE
MDT
RNF
Momentarily enters
CHARGE MODE
Reset CR-CLK
counter here
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