LB1868M Description
LB1868M 2‐phase Brushless Fan Motor Driver Monolithic Digital IC Overview The LB1868M 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 12 V or 24 V operation and a wide range of variations, from Low speed to H-High speed and from 60 cm to 120 cm square using the same PCB.
LB1868M Key Features
- Output Protection Zener Diode with Variable Withstand Voltage
- Z1, Z2 Pins Open: VOLM = 57 V (24 V Specification)
- Z1, Z2 pins shorted: VOLM = 32 V (12 V Specification)
- External Zener Diode Connected across Z1
- VCC Pins
- External Resistor Allows Configuration for 12 V or 24 V
- Direct Hall Element Connection Possible (Built-in Hall Amplifier
- Built-in Output Transistor with 1.0 A Output Current (Strengthened
- Built-in Rotation Detection Function: Low during Rotation and High
- Built-in Lockup Protection with Automatic Recovery