LB1946 查看數據表（PDF） - SANYO -> Panasonic

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LB1946

Monolithic Digital IC PWM Current Control Stepping Motor Driver

SANYO -> Panasonic 

MIX DECAY

E pin

LB1946

Noise spike

tm

Output current

tn

CR pin

MD pin voltage level

t on

Output pin

t off

Switching Waveform

ILB01484

Mix decay logic setting

When serial transmission data (D4, D10) is Low

MD pin setting:

5V VCC type: 1.6 to 3.9V

3.3V VCC type: 1.2 to 2.5V

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: upper-side chopping

t on: Output on time

t off: Output off time

tm: Fast decay time in mix decay mode

tn: Noise cancellation time

No.7115-13/16

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