LM621 - LM621 Brushless Motor Commutator

National Semiconductor

The LM621 by National Semiconductor is a LM621 Brushless Motor Commutator. Below is the official datasheet preview.

📥 Download Datasheet

LM621 LM621 Brushless Motor Commutator by National Semiconductor - Datasheet Preview — Official preview page of the **LM621** LM621 Brushless Motor Commutator datasheet (National Semiconductor).

Datasheet Details

Part number	LM621
Manufacturer	National Semiconductor
File Size	224.72 KB
Description	LM621 Brushless Motor Commutator
Datasheet	LM621_NationalSemiconductor.pdf
Additional preview pages of the LM621 datasheet.

LM621 Product details

Description

The LM621 is a bipolar IC designed for commutation of brushless DC motors The part is compatible with both three- and four-phase motors It can directly drive the power switching devices used to drive the motor The LM621 provides an adjustable dead-time circuit to eliminate ‘‘shootthrough’’ current spiking in the power switching circuitry Operation is from a 5V supply but output swings of up to 40V are accommodated The part is packaged in an 18-pin dual-in-line package Y Y Y

Features

Y Y Y Y Y Adjustable dead-time feature eliminates current spiking On-chip clock oscillator for dead-time feature Outputs drive bipolar power devices (up to 35 mA base current) or MOSFET power devices Compatible with three- and four-phase motors Bipolar drive to delta- or Y-wound motors Unipolar drive to center-tapped Y-wound motors Supports 30- and 60-degree shaft position sensor placements for three-phase motors Supports 90-degree sensor placement for four-phase motors Directly interfaces to.

📁 LM621 Similar Datasheet

LM6211 - RRO Operational Amplifier (Texas Instruments)
LM6206N3 - Low Dropout CMOS Voltage Regulators (CYStech Electronics)
LM62460-Q1 - Automotive Buck Converter (Texas Instruments)
LM6270 - STANDARD LCD MODULE (DENSITRON)
LM628 - Precision Motion Controller (Texas Instruments)
LM629 - Precision Motion Controller (Texas Instruments)
LM629M-6 - Precision Motion Controller (Texas Instruments)
LM629M-8 - Precision Motion Controller (Texas Instruments)

Other Datasheets by National Semiconductor

LM6218 - Fast Settling Dual Operational Amplifiers
LM62 - 2.7V/ 15.6 mV/C SOT-23 Temperature Sensor
LM6221 - High Speed Buffer
LM6225 - High Speed Buffer
LM6261 - High Speed Operational Amplifier
LM6262 - High Speed Operational Amplifier

Published: Mar 22, 2005 |