Ordering number : EN2551E
LB1660N
LB1661
LB1664N
Monolithic Digital IC
2-Phase Unipolar
Brushless Motor Drivers
Overview
The LB1660 series are 2-phase unipolar brushless motor (ex. DC brushless fanmotor) drivers.
Features
• Output current : 1.5A.
• On-chip output protect zener diodes : 60V (LB1660N, 1664N).
• Output stage withstand voltage : 85V.
• On-chip hall input amplifier.
• On-chip protector against lock.
• With lock detect pin.
Classification
The LB1660 series are classified by the package and whether the on-chip output stage zener diode is used or not, as follows.
Output stage zener diode
With (VZ = 59V)
Without (Vor = 85V)
DIP8 (Pd = 1.2W)
LB1660N
LB1661
DIP16F (Pd = 2.0W)
LB1664N
Package
It is recommended to use the LB1661 in the following cases.
(1) A capacitor is connected across the output and GND and the back emf is more than VZ = 59V.
(2) External zener diodes are connected to absorb the kickback voltage.
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,
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace
instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee
thereof. If you should intend to use our products for applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our
customer shall be solely responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer' s products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer' s products or
equipment.
D1008 MS PC/O1096HA(II) 7037KI/6227TA No.2251-1/8
