tb62217afg TOSHIBA Semiconductor CORPORATION, tb62217afg Datasheet - Page 53
tb62217afg
Manufacturer Part Number
tb62217afg
Description
Pwm Drive Stepping Motor Driver / Brush Dc Motor Driver Selectable, Dc-dc Converter And Reset Function Ic
Manufacturer
TOSHIBA Semiconductor CORPORATION
Datasheet
1.TB62217AFG.pdf
(61 pages)
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Mixed decay Mode Current Waveform and Setting
to any of four points, 0 to 3, using 2-bit serial data.
the set current value. The lower the mixed decay timing value, the lower is the current ripple component (current
crest value), leading to a lower current decay ability.
In constant-current control, the current fluctuation width (current pulsating component) decay mode can be set
The abbreviation “NF” stands for “negative feedback”. It refers to a point where the output current has reached
CR pin
internal clock
waveform
DECAY MODE 0
DECAY MODE 1
DECAY MODE 2
DECAY MODE 3
12.5%
MIXED
DECAY
37.5%
MIXED
DECAY
75%
MIXED
DECAY
FAST
DECAY
100%
NF
NF
CHARGE MODE o NF: Set current value reached
CHARGE MODE o NF: Set current value reached
o SLOW MODE o MIXED DECAY TIMMING o
CHARGE MODE o NF: Set current value reached
CHARGE MODE o NF: Set current value reached
o SLOW MODE o MIXED DECAY TIMMING o
o SLOW MODE o MIXED DECAY TIMMING o
FAST MODE o CHARGE MODE
MDT
75%
FAST MODE o CHARGE MODE
FAST MODE o CHARGE MODE
NF
o FAST MODE
53
50%
f
chop
Set current value
MDT
25%
Set current value
Set current value
Set current value
MDT
TB62217AFG
0
2004-11-12
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