Star Micronics FUTUREPRINT TSP100 - Manual (Page 28)

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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 24
Ω.
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