LB1667M Description
EN 4944 Monolithic Digital IC LB1668, 1668M, LB1667, 1667M Two-Phase Unipolar Drive Brushless Motor Drivers Preliminary Overview The LB1668 Series are 2-phase unipolar drive brushless motor drivers that.
LB1667M Key Features
- Output protection Zener diodes with variable breakdown voltages
- When the Z1 and Z2 pins are open: VOLM = 57 V
- When the Z1 and Z2 pins are shorted: VOLM = 32 V
- An external Zener diode can be connected between Z1 and VCC
- Can support both 12-V and 24-V power supplies by changing an external resistor
- Hall elements can be connected directly
- Built-in rotation detection function that outputs low when driven and high when stopped (LB1668/M)
- FG signal function that sets FG high when IN- is low, and sets FG low when IN- is high (LB1667/M)
- Thermal shutdown function