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LB1945H 数据表(PDF) 1 Page - ON Semiconductor |
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LB1945H 数据表(HTML) 1 Page - ON Semiconductor |
1 / 7 page 30409 MS / 82799RM(KI) No.6193-1/7 http://onsemi.com Semiconductor Components Industries, LLC, 2013 June, 2013 LB1945H Overview The LB1945H is a PWM current control type stepping motor driver. Feature • PWM current control (external excitation) • Load current digital selection (1-2, W1-2, and 2 phase excitation drives possible) • Built-in upper/lower diode • Simultaneous ON prevention function (feed-through current prevention) • Built-in thermal shutdown circuit • Built-in noise canceler Specifications Absolute Maximum Ratings at Ta = 25 °C Parameter Symbol Conditions Ratings Unit Maximum motor supply voltage VBB max 30 V Output peak current IO peak tw ≤ 20μs 1.0 A Output continuous current IO max 0.8 A Logic supply voltage VCC max 6.0 V Logic input voltage range VIN max -0.3 to VCC V Emitter output voltage VE max 1.0 V Allowable power dissipation Pd max Mounted on a specified board * 1.9 W Operating temperature Topr -20 to +90 °C Storage temperature Tstg -55 to +150 °C * Specified board: 114.3mm × 76.1mm × 1.6mm, glass epoxy board. Monolithic Digital IC PWM Current Control Type Stepping Motor Driver Ordering number : EN6193B Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. |
类似零件编号 - LB1945H |
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类似说明 - LB1945H |
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