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LB11920-E

Monolithic Digital IC For OA Products Three-Phase Brushless Motor Driver

ON Semiconductor 

Ordering number : EN7229B

LB11920

Monolithic Digital IC

For OA Products

Three-Phase Brushless Motor Driver

http://onsemi.com

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 range of 9.5 to 30V.

Features

• 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 constraint) protection, and thermal protection circuits

• The PWM duty can be controlled by IC inputs

Specifications

Absolute Maximum Ratings at Ta = 25°C

Parameter

Supply voltage 1

Supply voltage 2

Output voltage

Output current

Allowable power dissipation

Operating temperature

Storage temperature

Symbol

VM max

VCC max

VOUT max

IO max

Pd max1

Pd max2

Topr

Tstg

Conditions

OUT1 to OUT3

T ≤ 500ms

Independent IC

With an infinitely large heat sink.

Ratings

Unit

35

V

7

V

35

V

3.5

A

3

W

20

W

-20 to +80

°C

-55 to +150

°C

Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating

Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.

Semiconductor Components Industries, LLC, 2013

May, 2013

82008 MS PC/O3003SI (OT) No.7229-1/10

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