Part number:
LB1821
Manufacturer:
Sanyo
File Size:
223.46 KB
Description:
Power brushless motor pre-driver.
Datasheet Details
Part number:
LB1821
Manufacturer:
Sanyo
File Size:
223.46 KB
Description:
Power brushless motor pre-driver.
LB1821, Power Brushless Motor Pre-Driver
1.
Speed Control Circuit This IC implements speed control using the combination of a speed discriminator circuit and a PLL circuit.
The speed discriminator and the PLL circuit output (using a charge pump technique) an error signal once every two FG periods.
As compared to the earlier technique in wh
Ordering number : EN5686 Monolithic Digital IC LB1821M Power Brushless Motor Pre-Driver IC for OA Equipment Overview The LB1821M is a pre-driver IC that supports direct PWM drive and is appropriate for the power brushless motors used in office automation equipment.
A motor drive circuit with the desired output capability (voltage and current characteristics) can be constructed by attaching a driver array at the IC output.
The LB1821M includes on chip a speed control circuit that allows the mo
LB1821 Features
* Direct PWM drive output Speed discriminator + PLL speed control circuit FG and integrating amplifiers Forward/reverse switching circuit Braking circuit (short braking) Speed lock detection output Full complement of on-chip protect
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