tb62201afg TOSHIBA Semiconductor CORPORATION, tb62201afg Datasheet - Page 15

• Manufacturer Part Number: tb62201afg
• Description: Dual-stepping Motor Driver Ic For Oa Equipment Using Pwm Chopper Type
• Manufacturer: TOSHIBA Semiconductor CORPORATION

12. Function of Setting Mixed Decay Timing
CURRENT
MODE X
Mixed decay timing means the time for switching Slow mode to Fast mode in MIXED DECAY MODE.
In Mixed Decay mode, the Fast mode time at the end of chopping Cycle (T
The IC is switched from Slow to Fast mode according to the percentage representing mode time in the table
above.
(For example, 12.5% means that 12.5% of the time is in Fast mode and the rest of the time, 87.5%, in
Charge and Slow modes.)
Only when the value is maximum (100%), the mode is Fast Decay mode.
H
H
H
H
H
H
H
H
L
DECAY MODE
Don’t care
X-2
H
H
H
H
L
L
L
L
DECAY MODE
Don’t care
X-1
H
H
H
H
L
L
L
L
DECAY MODE
Don’t care
15
X-0
H
H
H
H
L
L
L
L
MIXED DECAY TIMING
(SLOW DECAY MODE)
(FAST DECAY MODE)
12.5%
25.0%
37.5%
50.0%
62.5%
75.0%
87.5%
chop
100%
0%
) is fixed by data.
TB62201AFG
2005-04-04