LB11872V Datasheet, PDF (1/12 Pages) Sanyo Semicon Device – Monolithic Digital IC For Polygonal Mirror Motors Scanner Driver IC

Ordering number : ENA0367A
LB11872V
Monolithic Digital IC
For Polygonal Mirror Motors
Scanner Driver IC
Overview
The LB11872V is a three-phase brushless motor driver developed for driving the motors used for the polygonal mirror
in laser printers and similar applications. It can implement, with a single IC chip, all the circuits required for polygonal
mirror drive, including speed control and driver functions. The LB11872V can implement motor drive within minimal
drive noise due to its use of current linear drive.
Note that the LB11872V differs from the LB11872H only in the package.
Functions and features
• Three-phase bipolar current linear drive + midpoint control circuit
• PLL speed control circuit
• Speed is controlled by an external clock signal.
• Supports Hall FG operation.
• Built-in output saturation prevention circuit
• Phase lock detection output (with masking function)
• Includes current limiter, thermal protection, rotor constraint protection, and low-voltage protection circuits on chip.
• On-chip output diodes.
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
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's products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer's products or
equipment.
21407 MS IM 20060614-S00001 / 81006 MH IM 20060213-S00001 No.A0367-1/12