lb1868 Sanyo Semiconductor Corporation, lb1868 Datasheet
lb1868
Manufacturer Part Number
lb1868
Description
Two-phase Brushless Fan Motor Driver
Manufacturer
Sanyo Semiconductor Corporation
Datasheet
1.LB1868.pdf
(4 pages)
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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.
Functions and Features
• Output protection Zener diode with variable withstand
• External resistor allows configuration for 12V or 24V.
• Direct Hall element connection possible (built-in Hall
• Built-in output transistor with 1.0A output current
• Built-in rotation detection function: Low during rotation
• Built-in lockup protection with automatic recovery
• Built-in thermal shutdown
Ordering number : ENN*6202
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
amplifier with hysteresis supports core without auxiliary
electrode)
(strengthened negative-current support for core without
auxiliary electrode)
and High during stop
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.
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.
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
SANYO Electric Co.,Ltd. Semiconductor Company
LB1868
Two-Phase Brushless Fan Motor Driver
Package Dimensions
unit: mm
3098B-DIP10S
1.14
10
1
1.78
9.4
0.95
[LB1868]
0.48
5
6
83100RM(KI)
Monolithic Digital IC
LB1868
SANYO : DIP10S
No. 6202-1/4
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lb1868 Summary of contents
Page 1
... Ordering number : ENN*6202 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 120 cm square using the same PCB ...
Page 2
... Thermal protection circuit hysteresis * Design target values are not measured – – LB1868 Symbol Conditions ICC max IOUT max IRD max VRD max Pd max Topr Tstg Symbol Conditions ICC VICM ...
Page 3
... H IN– Constant current source Truth Table IN+ IN– C OUT1 LB1868 Thermal shutdown Control block OUT2 * latch type output OUT Z1 Z2 OUT2 RD GND No. 6202-3/4 ...
Page 4
... This catalog provides information as of August, 2000. Specifications and information herein are subject to change without notice. LB1868 Function VIN LB1868 Z1 7 OUT2 6 Top view PS No. 6202-4/4 ...