LB8503V Datasheet, PDF (1/20 Pages) Sanyo Semicon Device – Monolithic Digital IC DC Fan Motor Speed Control IC

Ordering number : ENA0366
LB8503V
Monolithic Digital IC
DC Fan Motor Speed
Control IC
Overview
The LB8503V is an improved functionality version of the LB8500 and LB8502 products that features the added functions
listed below. The LB8503V supports both single-phase and three-phase applications.
Added Functions
• Supports origin shifting in the speed control function
• Adds a dedicated pin for setting the soft start time
This allows a longer start time to be set without reducing the response time when changing speed.
• FG output pin added
Functions and Features
• Achieves linear speed control
Applications can set the slope of the change in motor speed with change in the input duty.
• Minimized speed fluctuations in the presence of line or load variations
• Allows a minimum speed to be set
• Soft start function
• Settings using external capacitors and resistors (to support easier mass production of end products)
• Supports both PWM duty and analog voltage control inputs
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
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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.
31407 TI PC 20060207-S00003 No.A0366-1/20