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| Drivers IMT-901 - Microstep Constant Current Driver "IC" The IMT 901 is a PWM chopper type sinusoidal micro step bipolar steppping motor driver. Sinusoidal micro step operation is generated by means of built-in hardware and is outputted for operation by clock signal inputting. Advantages: only one IC for power and logic (up to 2,5 A/phase) reduces considerably space, assembly time and cost of a microstep driver with a max. functions yet with a min. of ext. components. selectable from: 1/1-, 1/2-, 1/4-, 1/8-Step enables individual application-related microstep switching, smooth and constant running and reduces considerably system resonance. Current down system or current zeroing reduces or eliminates motor power losses and heating during standstill Dimensions (mm) PIN-Assignment max. Nominal Values (at 25 C) Supply voltage VCC: V M: Output current lout: Power dissipation Pd 5,5 V 40 V 1,5 A (AVE) 2,5 A (peak) 4 W/40 W without/with heat sink TC=85 C -40C to 85C -55C to 150C Signal Circuit times t1: pulse width >10s t2: pulse width >10s t3: > 5s t4: >10s Operation temp.: Storage temp.: mounting form CPP-25 Input M1 M2 L H L H L L H H Mode 1/1 Step 1/2 Step 1/4 Step 1/8 Step Inputs Thermal Behavior Input-/Output-Signals Nanotec(R) GmbH * Gewerbestr. 11 * D-85652 Landsham * Phone 089/900 686-0 * Fax 089/900 686-50 * http://www.nanotec.com Drivers IMT-901 Function Table Block diagramm (+ external Circuit) Full-/Half-Step Mode Quarter-/Eighth-Step Mode Electrical Characteristics 1 (Ta=25, VCC=5V, VM=24V) Electrical Characteristics 2 (Ta=25, VCC=5V, VM=24V) Nanotec(R) GmbH * Gewerbestr. 11 * D-85652 Landsham * Phone 089/900 686-0 * Fax 089/900 686-50 * http://www.nanotec.com |
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