tb62202afg TOSHIBA Semiconductor CORPORATION, tb62202afg Datasheet - Page 51
tb62202afg
Manufacturer Part Number
tb62202afg
Description
Dual-stepping Motor Driver Ic For Oa Equipment Using Pwm Chopper Type
Manufacturer
TOSHIBA Semiconductor CORPORATION
Datasheet
1.TB62202AFG.pdf
(84 pages)
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Quantity
Price
Part Number:
TB62202AFG
Manufacturer:
TOSHIBA/东芝
Quantity:
20 000
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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 µS
@100 kHz CHOPPING.)
When the CR-CLK counter is reset due to STROBE signal input, CHARGE MODE is entered momentarily due to
current comparison.
Set current
value
Note: In FAST DECAY MODE, too, CHARGE MODE is entered momentarily due to current comparison.
STROBE signal input
I
out
f
chop
Reset CR-CLK
counter here
Set current
value
f
MDT
chop
51
RNF
NF
37.5% MIXED DECAY MODE
Momentarily enters
CHARGE MODE
f
chop
MDT
TB62202AFG
2005-04-04
RNF
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