Stepper Motor Controller…. (24 Pins) |
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LS7290, LS7290-S, LS7290-TS Last Update: 07/20/11 |
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Controls Bipolar and Unipolar Stepper Motors |
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Full, 1/2 step modes selection |
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Direct interface to L298 for BiPolar motors |
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Enable, Step, Direction and Reset control inputs |
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PWM chopper circuit for step and torque control |
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Two peak current sense comparators with external reference input |
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Programmable interstep blanking delay |
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3 to 5.5 volt operation |
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Stepper Motor Controller…. (20 Pins; 20 Pins) |
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LS8297, LS8297-S, LS8297-TS NEW! LS8297CT, LS8297CT-S, LS8297CT-TS |
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Low cost, low current, pin-compatible replacement for L297. |
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Torque Ripple Compensated half-steps – LS8297CT |
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Controls two-phase Bipolar and four-phase Unipolar motors |
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Interface to four AND Gates driving four N-Channel MOSFET's for Unipolar motors |
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Normal/wave drive |
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PWM chopper circuit for current control |
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Two over current sense comparators with external references input |
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All inputs and outputs TTL/CMOS compatible (TTL for 5V operation) |
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Supply current < 400uA |
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Supply voltage: 4.75 to 7V |
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Stepper Motor Controller…. (24 Pins) |
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LS8397, LS8397-S, LS8397-TS NEW! |
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Low cost, low current, pin-compatible replacement for L297. |
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L297 operating modes with added functions:
- Selectable Torque Ripple Compensation MODE
- Selectable Holding Torque MODE
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Other features same as LS8297 |