LB1945D driver equivalent, stepping motor driver.
* PWM current control (external clock)
* Digital load current selection function (supports 1-2, W1-2, and 2-phase excitation)
* Built-in high and low side dio.
outside the standard applications of our customer who is considering such use and/or outside the scope of our intended s.
GND
VCC
IA2
IA1
NC
No.7633-3/9
LB1945D
Block Diagram
ENABLE2 PHASE2 SUBGND VREF2 VCC IB1 IB2
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S-GND
Control logic circuit
Current selection circuit
VBB2 Blanking time OUTB E2 OUTB D-GND
VBB1
Thermal shutdown circuit
O.
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