IRDM982 Series

1 www.irf.com

© 2015 International Rectifier

April 8, 2015

IRDM982 Series - IRDM982-025MB, IRDM982-035MB

Complete Motion Controller Module for PM AC fan

Features

•

Complete 250V - 500V 3-phase inverter system in one

chip

•

No heatsink required

•

Permanent Magnet Sinusoidal Motors Control by Hall

sensors

•

Selectable 4 or 12 pulse output per revolution

1)

•

High efficiency control by quadratic phase advance curve

•

Internal clock based on external RC

•

15V single power supply

•

3.3V Integrated Voltage Regulator

•

Dynamic overcurrent limit per temperature

•

Overtemperature control

•

Overspeed protection

•

Rotor lock detection/protection

•

Full Three Phase Gate Driver

•

Integrated Bootstrap Diodes

•

Undervoltage lockout

Typical Applications

•

Fan motor control

Product Summary

Topology

3 Phase AC

≤ 500 V for IRDM982-025MB,

IRDM982-035MB

Control

Phase Advancement control

Feedback

DC Bus shunt, 3 Hall sensor

Temperature

sensor

Integrated

Package

12mm x 12mm PQFN

IRDM982-025MB

IRDM982-035MB

High Voltage

Smart IC

VCC

HALL1+

HALL1-

HALL2+

HALL2-

HALL3+

HALL3-

VSP

VBU

VBV

VBW

VBUS

VSS

U

V

W

PG

COM

EFF

XTAL

CLKIN

VDD

DCBUS+

DCBUS-

PG

VSP

Hall Sensor

15V

PGSEL

DIR

DIR

1) When used with 8 poles motor. In general it is 1 pulse / 3 pulses per electrical revolution.