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
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
Supply voltage
Input current
Output current
LVSD pin apply voltage
Symbol
VCC max
I13 max
IO max
LVSD max
Conditions
V13 pin
UL pin, VL pin, WL pin, UH pin, VH pin, and WH pin
Ratings
Unit
18
V
5
mA
30
mA
18
V
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the performance, characteristics, and functions of the described products in the independent state, and are not
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equipment.
41807 TI PC B8-8869 No.8317-1/15