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LB1845 Datasheet(PDF) 1 Page - Sanyo Semicon Device |
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LB1845 Datasheet(HTML) 1 Page - Sanyo Semicon Device |
1 / 7 page Overview The LB1845 is a PWM current control type stepping motor driver that uses a bipolar drive scheme. It is particularly suitable for driving carriage and paper feed stepping motors in printers and similar products. Features • PWM current control (fixed off time scheme) • Digital load current selection function • Sustained output voltage: 45 V • Built-in thermal shutdown circuit Package Dimensions unit: mm 3147A-DIP28H Monolithic Digital IC Ordering number: EN5505B D3096HA (OT) No. 5505-1/7 SANYO: DIP28H [LB1845] SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN PWM Current Control Stepping Motor Driver LB1845 Parameter Symbol Conditions Ratings Unit Motor supply voltage VBB 45 V Peak output current IOPEAK tW = 20 µS 1.75 A Continuous output current IOMAX 1.5 A Logic block supply voltage VCC 7.0 V Logic input voltage range VIN –0.3 to VCC V Emitter output voltage VE 1.0 V Allowable power dissipation Pd max1 Independent IC 3.0 W Pd max2 With an arbitrarily large heat sink 20.0 W Operating temperature Topr –20 to +85 °C Storage temperature Tstg –55 to +150 °C Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Symbol Conditions Ratings Unit Motor supply voltage VBB 10 to 44.5 V Logic block supply voltage VCC 4.75 to 5.25 V Reference voltage VREF 1.5 to 7.5 V Recommended Operating Ranges at Ta = 25°C |
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