Notes: 1. Pin 1 must be shield drain wire connected to peripheral device frame ground.
2.It is not possible to drive two drives simultaneously.
3.The peripheral drive duty must satisfy the following: ON time / (ON time + OFF time) 
0.2
4.Minimum resistance for coils L1 and L2 is 24Ω.
5.Absolute maximum ratings for diodes D1 and D2 (Ta = 25°C) are: Average Rectified Current Io = 1A
6.Absolute maximum rating for transistors TR1 and TR2 (Ta = 25°C) are:
Collector current Ic = 2A
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