IRDM982_15 Datasheet, PDF (1/27 Pages) International Rectifier – Dynamic overcurrent limit per temperature

IRDM982 Series
IRDM982 Series - IRDM982-025MB, IRDM982-035MB
Complete Motion Controller Module for PM AC fan
Features
Product Summary
• Complete 250V - 500V 3-phase inverter system in one
chip
Topology
3 Phase AC
• No heatsink required
• Permanent Magnet Sinusoidal Motors Control by Hall
V_OFFSET
≤ 500 V for IRDM982-025MB,
IRDM982-035MB
sensors
• Selectable 4 or 12 pulse output per revolution¹⁾
Control
Phase Advancement control
• High efficiency control by quadratic phase advance curve _Feedback
• Internal clock based on external RC
DC Bus shunt, 3 Hall sensor
• 15V single power supply
• 3.3V Integrated Voltage Regulator
Temperature
sensor
Integrated
• Dynamic overcurrent limit per temperature
Package
• Overtemperature control
• Overspeed protection
• Rotor lock detection/protection
• Full Three Phase Gate Driver
• Integrated Bootstrap Diodes
• Undervoltage lockout
Typical Applications
• Fan motor control
12mm x 12mm PQFN
VBU
VBV
VBW
DCBUS+
VBUS
15V
VCC
XTAL
CLKIN
VDD
HALL1+
HALL1-
HALL2+
Hall Sensor
HALL2-
HALL3+
High Voltage
Smart IC
U
V
HALL3-
W
PG
VSP
EFF
DIR
PGSEL
VSS
COM
DCBUS-
PG
VSP
IRDM982-025MB
IRDM982-035MB
DIR
1) When used with 8 poles motor. In general it is 1 pulse / 3 pulses per electrical revolution.
1 www.irf.com
© 2015 International Rectifier
April 8, 2015