LB11847 Datasheet, PDF (8/15 Pages) Sanyo Semicon Device – PWM Current Control Type Stepping Motor Driver

MIX DECAY
E pin
LB11847
Noise spike
tm
Output pin
tn
RC pin
Output pin
t _on
t _off
Switching wavwform
ton : Output ON time
toff : Output OFF time
tm : FAST DECAY time in MIX DECAY mode
tn : Noise cancelling time
MIX DECAY logic setting
DECAY pin : L
MD pin : 1.5V to 4.0V voltage setting
CR voltage and MD pin voltage are compared to select dual-side chopping
or upper-side chopping.
CR voltage > MD pin voltage: dual-side chopping
CR voltage < MD pin voltage: top-side choppinng
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