LB1867M Datasheet | SANYO

Overview 2-phase Brushless Fan Motor Driver The LB1867M is a 2-phase unipolar brushless motor driver. With only a few peripheral parts, lockup protection and automatic recovery can be implemented. The IC can be configured for 12V or 24V operation and a wide range of variations, from Low speed to H-High speed and from 60cm to 120cm square using the same PCB. This makes it easy to design highly reliable fan motor installations. Features - Output protection Zener diode with variable withstand voltage Z1, Z2 pins open: VOLM = 57V (24V specification) Z1, Z2 pins shorted: VOLM = 32V (12V specification) External Zener diode connected across Z1 - VCC pins: support for fans with large drive current - External resistor allows configuration for 12V or 24V - Direct Hall element connection possible (built-in Hall amplifier with hysteresis supports core without auxiliary electrode) - Built-in output transistor with 1.0A output current (strengthened negative-current support for core without auxiliary electrode) - Built-in rotation detection function: Low during rotation and High during stop - Built-in lockup protection with automatic recovery - Built-in thermal shutdown Specifications Parameter Maximum input current Absolute Maximum Ratings at Ta = 25°C Symbol ICC max VOUT max IOUT max IRD max VRD max Pd max Topr Tstg Mounted on a specified board - t ≤ 20ms Conditions Ratings 200 Internal 1.0 10 30 800 -30 to +80 -55 to +150 Unit m A V A m A V m W °C °C Maximum applied output voltage Maximum output current Maximum current flowing into RD pin Maximum RD applied voltage Allowable power dissipation Operating temperature Storage temperature - Specified board: 20mm × 15mm × 1.5mm, glass epoxy board. Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to "standard application", intended for the use as general electronics equipment (home appliances, AV equipment, munication device, office equipment, industrial equipment etc.). The...