LB11876 Datasheet, PDF (1/15 Pages) Sanyo Semicon Device – Monolithic Digital IC For Polygonal Mirror Motors Three-Phase Brushless Motor Driver

Ordering number : EN8317
LB11876
Monolithic Digital IC
For Polygonal Mirror Motors
Three-Phase Brushless Motor Driver
http://onsemi.com
Overview
The LB11876 is a 3-phase brushless motor driver developed for driving the polygonal mirror motor in plain-paper
copiers and similar products. It can support any motor voltage and motor current required by the use of appropriate
external components.
The LB11876 adopts direct PWM drive to achieve drive with minimal power loss.
Functions
• This is a version of the LB11875 with a modified constraint protection function.
• Three-phase bipolar drive (direct PWM)
• PLL speed control circuit
• Dedicated external clock
• Clock divider switching function
• Hall sensor FG support
• Short-circuit braking function
• Built-in current limiter, thermal protection, constraint protection, and undervoltage protection circuits
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Supply voltage
Input current
VCC max
I13 max
V13 pin
Output current
LVSD pin apply voltage
IO max
LVSD max
UL pin, VL pin, WL pin, UH pin, VH pin, and WH pin
Allowable power dissipation 1
Pd max1
Independent IC
Allowable power dissipation 2
Pd max2
When mounted on a circuit board *1
Operating temperature
Topr
Storage temperature
Tstg
*1 Specified circuit board : 114.3 × 76.1 × 1.6mm³, glass epoxy.
Ratings
Unit
18
V
5
mA
30
mA
18
V
0.62
W
1.36
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
41807 TI PC B8-8869 No.8317-1/15