LB11920-E Datasheet, PDF (1/10 Pages) ON Semiconductor – Three-Phase Brushless Motor Driver

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