LB11920_08 SANYO [Sanyo Semicon Device], LB11920_08 Datasheet

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LB11920_08

Manufacturer Part Number
LB11920_08
Description
For OA Products Three-Phase Brushless Motor Driver
Manufacturer
SANYO [Sanyo Semicon Device]
Datasheet
1.LB11920_08.pdf (10 pages)
Ordering number : EN7229B
LB11920
Overview
Features
Specifications
Absolute Maximum Ratings at Ta = 25°C
Supply voltage 1
Supply voltage 2
Output voltage
Output current
Allowable power dissipation
Operating temperature
Storage temperature
The LB11920 is a direct PWM drive motor driver IC for 3-phase power brushless motors. The PWM duty can be
controlled by IC inputs, and it can be used over the wide supply voltage range of 9.5 to 30V.
• Three-phase bipolar drive (35V, 3.5V)
• Direct PWM drive
• Built-in high and low side kickback absorbing diodes
• Braking function (short-circuit braking)
• Built-in forward/reverse direction switching circuit
• Full complement of built-in protection circuits, including current limiter, low-voltage protection, motor lock (physical
• The PWM duty can be controlled by IC inputs
constraint) protection, and thermal protection circuits
Parameter
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace
instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee
thereof. If you should intend to use our products for applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our
customer shall be solely responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer
device, the customer should always evaluate and test devices mounted in the customer
equipment.
'
s products or equipment. To verify symptoms and states that cannot be evaluated in an independent
VM max
V CC max
V OUT max
I O max
Pd max1
Pd max2
Topr
Tstg
Symbol
Monolithic Digital IC
For OA Products
Three-Phase Brushless Motor Driver
OUT1 to OUT3
T ≤ 500ms
Independent IC
With an infinitely large heat sink.
Conditions
82008 MS PC/O3003SI (OT) No.7229-1/10
Ratings
'
s products or
-55 to +150
-20 to +80
3.5
35
35
20
7
3
Unit
°C
°C
W
W
V
V
V
A

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LB11920_08 Summary of contents

Page 1

Ordering number : EN7229B LB11920 Overview The LB11920 is a direct PWM drive motor driver IC for 3-phase power brushless motors. The PWM duty can be controlled by IC inputs, and it can be used over the wide supply voltage ...

Page 2

Allowable Operating Conditions 25°C Parameter Symbol Supply voltage range 1 VM Supply voltage range pin applied voltage VHP HP pin output current IHP Electrical Characteristics 25° ...

Page 3

Continued from preceding page. Parameter Symbol Low-voltage protection circuit Operating voltage VSDL Release voltage VSDH ΔVSD Hysteresis width PWMIN pin Input frequency f (PI) H level input voltage V IH (PI) L level input voltage V IL (PI) Input open ...

Page 4

Pin Assignment OUT1 NC GND2 OUT2 OUT3 GND2 NC Truth Table Source OUT2 → OUT1 1 OUT3 →OUT1 2 OUT3 → OUT2 3 OUT1 → OUT2 4 OUT1 → OUT3 5 ...

Page 5

Block Diagram + + LB11920 + No.7229-5/10 ...

Page 6

Pin Functions Pin No. Pin name 28 OUT1 Motor drive output pin. 1 OUT2 2 OUT3 3, 26 GND2 Output GND pin Power pin Output Tr power and output current detector pins, which connect ...

Page 7

Continued from preceding page. Pin No. Pin name 11 S/S Start/stop control pin. Start with L and stop with the open condition Control circuit power pin. 13 GND1 GND pin (control circuit block). 14 ...

Page 8

Continued from preceding page. Pin No. Pin name IN1 + 18 Hall amplifier input. IN1 - IN + > the input high state, and the reverse is 17 IN2 + 20 the input low state. IN2 - ...

Page 9

Forward/backward changeover The motor rotation can be changed over with the F/R pin. Following cautions should be observed when F/R changeover made while the motor is running : • The circuit incorporates a measure against the ...

Page 10

Power supply stabilization This IC has a large output current, which causes deviation of the power line readily. To ensure stability necessary to insert a capacitor with sufficient capacitance between the VM pin and GND. To eliminate ...

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