Ordering number : ENN*6202
LB1868
Monolithic Digital IC
LB1868
Two-Phase Brushless Fan Motor Driver
Preliminary
Overview
The LB1868 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 12V or 24V 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. This makes it
easy to design highly reliable fan motor installations.
1
9.4
5
Package Dimensions
unit: mm
3098B-DIP10S
[LB1868]
10
6
7.62
6.4
0.51min
鈥?Output protection Zener diode with variable withstand
voltage
Z1, Z2 pins open: VOLM = 57V (24V specification)
Z1, Z2 pins shorted: VOLM = 32V (12V specification)
External Zener diode connected across Z1 - VCC pins:
support for fans with large drive current
External resistor allows configuration for 12V or 24V.
Direct Hall element connection possible (built-in Hall
amplifier with hysteresis supports core without auxiliary
electrode)
Built-in output transistor with 1.0A output current
(strengthened negative-current support for core without
auxiliary electrode)
Built-in rotation detection function: Low during rotation
and High during stop
Built-in lockup protection with automatic recovery
Built-in thermal shutdown
0.48
0.95
1.14
1.78
3.2
3.0
3.9max
Functions and Features
SANYO : DIP10S
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鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
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
83100RM(KI) No. 6202-1/4
0.25
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