Product Summary

The LB1668 is a 2-phase unipolar drive brushless motor driver that features a wide usable voltage range and a minimal number of required external components. The LB1668 also supports the formation of motor lock protection and automatic recovery circuits.

Parametrics

LB1668 absolute maximum ratings: (1)Maximum input current, ICC max: 200 mA when t ≤ 20 ms; (2)Output current, IOUT: 1.5 A; (3)Output minus current, IOM: –50 mA; (4)RD/FG influx current, IRD/IFG: 10 mA; (5)RD/FG voltage, VRD/VFG: 30 V; (6)Allowable power dissipation, Pd max: 1.1 W; (7)Operating temperature, Topr: –30 to +80℃; (8)Storage temperature, Tstg: –55 to +150℃.

Features

LB1668 features: (1)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; (2)Can support both 12-V and 24-V power supplies by changing an external resistor; (3)Hall elements can be connected directly; (4)1.5-A output current output transistors built in; (5)Built-in rotation detection function that outputs low when driven and high when stopped (LB1668/M); (6)FG signal function that sets FG high when IN- is low, and sets FG low when IN- is high (LB1667/M); (7)Motor lock protection and automatic recovery functions built in; (8)Thermal shutdown function.

Diagrams

LB1668 block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LB1668
LB1668

Other


Data Sheet

Negotiable 
LB1668M
LB1668M

Other


Data Sheet

Negotiable 
LB1668M-TLM-H
LB1668M-TLM-H

ON Semiconductor

Motor / Motion / Ignition Controllers & Drivers BRUSHLESS MOTOR DRIVER

Data Sheet

0-580: $0.88
580-1000: $0.73
1000-2000: $0.68
2000-5000: $0.65