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LB1929 Datasheet

  • LB1929

  • Three-Phase Brushless Motor Driver for OA Products

  • 12頁(yè)

  • SANYO

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Ordering number : ENN7099
Monolithic Digital IC
LB1929
Three-Phase Brushless Motor Driver for OA Products
Overview
The LB1929 is a three-phase brushless motor driver that is
optimal for driving the drum and paper feed motors in
laser printers and plain-paper copiers. It can provide drive
with minimal power loss due to direct PWM drive
technique, features on-chip peripheral circuits such as a
speed control circuit and an FG amplifier, and can
implement a drive circuit in a single chip.
Package Dimensions
unit: mm
3147B-DIP28H
[LB1929]
28
15
R1.7
Functions and Features
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Three-phase bipolar drive (30 V, 3.5 A)
Direct PWM drive
Built-in low side output kickback absorption diode
Control technique that combines a speed discriminator
with PLL speed control
鈥?Speed lock detection output
鈥?Built-in forward/reverse switching circuit
鈥?Full complement of built-in protection circuits,
including current limiter, thermal protection circuit, and
motor lockup protection circuit.
1
20.0
26.75
4.0
12.7
11.2
8.4
14
(1.81)
1.78
0.6
1.0
SANYO: DIP-28H (500 mil)
Specifications
Absolute Maximum Ratings
at Ta = 25擄C
Parameter
Supply voltage
Output current
Allowable power dissipation 1
Allowable power dissipation 2
Operating temperature
Storage temperature
Symbol
V
CC
max
I
O
max
Pd max1
Pd max2
Topr
Tstg
T
鈮?/div>
500 ms
Independent IC
Infinitely large heat sink
Conditions
Ratings
30
3.5
3
20
鈥?0 to +80
鈥?5 to +150
Unit
V
A
W
W
擄C
擄C
Allowable Operating Range
at Ta = 25擄C
Parameter
Supply voltage range 1
Regulator-voltage output current
LD output current
Symbol
V
CC
IREG
ILD
Conditions
Ratings
9.5 to 28
0 to 鈥?0
0 to 15
Unit
V
mA
mA
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鈥檚
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
71202RM (OT) No. 7099-1/12
4.0
0.4

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