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Sanyo - Three-Phase Brushless Motor Driver for Polygon Mirror Motors

Numéro de référence LB1876
Description Three-Phase Brushless Motor Driver for Polygon Mirror Motors
Fabricant Sanyo 
Logo Sanyo 





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LB1876 fiche technique
Ordering number : ENN6201A
Monolithic Digital IC
LB1876
Three-Phase Brushless Motor Driver
for Polygon Mirror Motors
Overview
The LB1876 is a driver for polygon mirror motors such as
used in laser printers and similar equipment.
It incorporates all necessary circuitry (speed control +
driver) on a single chip. Direct PWM drive enables drive
with low power loss.
Functions and Features
• Three-phase bipolar drive
• Direct PWM drive technique
• Built-in lower side output diode
• Output current limiter
• Reference clock input circuit (FG frequency equivalent)
• PLL speed control circuit
• Phase lock detector output (with masking function)
• Built-in protection circuitry includes current limiter,
restraint protection, overheat protection, low-voltage
protection, etc.
• Brake method switching circuit (free-run or reverse
torque)
• 5V regulator output
• Power save function
Package Dimensions
unit: mm
3235A-HSOP36
[LB1876]
17.8
(6.2)
2.7
36
1
(0.5)
0.8 2.0
0.3
0.25
SANYO: HSOP36
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Maximum supply voltage 1
Maximum output current
Allowable power dissipation 1
Allowable power dissipation 2
Operating temperature
Storage temperature
Symbol
VCC max
IO max
Pd max1
Pd max2
Topr
Tstg
T 500 ms
IC only
*With substrate
* Substrate: 114.3 × 76.1 × 1.6 mm3, glass epoxy
Conditions
Ratings
30
2.5
0.9
2.1
–20 to +80
–55 to +150
Unit
V
A
W
W
°C
°C
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
61202RM (OT)/62599RM (KI) No. 6201-1/14

PagesPages 14
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