LB11826

Ordering number : EN7109A LB11826 Monolithic Digital IC For OA Products Three-Phase Brushless Motor Driver http://onsemi.com Overview The LB11826 is a three-phase brushless motor driver that is optimal for driving drum and paper feed motors in laser printers and plain paper copiers. This IC adopts a direct PWM drive technique for minimal power loss. Flexible control of motor speed in response to an externally provided clock frequency (corresponding to the FG frequency) can be implemented by using the LB11826 in conjunction with the Sanyo LB11825M. Features Three-phase bipolar drive (30V, 2.5V) Direct PWM drive Built-in low side inductive kickback absorbing diode Speed discriminator + PLL speed control Speed locked state detection output Built-in forward/reverse switching circuit Full complement of built-in protection circuits, including current limiter circuit, thermal protection circuit, and motor constraint protection circuit. Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Supply voltage Output current Allowable power dissipation Operating temperature Storage temperature Symbol VCC max IO max Pd max1 Pd max2 Topr Tstg Conditions T ≤ 500ms Independent IC When infinitely large heat sink Ratings 30 2.5 3 20 -20 to +80 -55 to +150 Unit V A W W °C °C 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 exp...