LB1668_09 Datasheet, PDF (1/8 Pages) Sanyo Semicon Device – Two-Phase Unipolar Drive Brushless Motor Drivers

Ordering number : ENN4944A
Monolithic Digital IC
LB1668, 1668M, LB1667, 1667M
Two-Phase Unipolar Drive
Brushless Motor Drivers
Overview
The LB1668 Series are 2-phase unipolar drive brushless
motor drivers that feature a wide usable voltage range and
a minimal number of required external components. They
also support the formation of motor lock protection and
automatic recovery circuits.
Functions and Features
• Output protection Zener diodes with variable breakdown
voltages
— When the Z1 and Z2 pins are open: V_OLM = 57 V
— When the Z1 and Z2 pins are shorted: V_OLM = 32 V
— An external Zener diode can be connected between
Z1 and V_CC.
• Can support both 12-V and 24-V power supplies by
changing an external resistor.
• Hall elements can be connected directly.
• 1.5-A output current output transistors built in
• 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)
• Motor lock protection and automatic recovery functions
built in
• Thermal shutdown function
Package Dimensions
unit: mm
3098B-DIP10S
[LB1668, 1667]
10
6
1
5
9.4
0.48
0.95
1.14
1.78
unit: mm
3111-MFP14S
[LB1668M, 1667M]
14
8
SANYO: DIP10S
1
7
0.15
8.0
0.35
1.0 1.0
SANYO: MFP14S
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
73099TH (OT)/13097HA (OT) No. 4944-1/8