IRDM982
Data Sheet
iMOTION™ Motion Controller Module for PM AC Fan
Quality Requirement Category: Industry
Features
Complete 250V - 500V 3-phase inverter system in one chip
Permanent Magnet Sinusoidal Motors Control by Hall sensors
High efficiency control by quadratic phase advance curve
Internal clock based on external RC
15V single power supply
3.3V Integrated Voltage Regulator
Integrated protection features:
Dynamic overcurrent , Overtemperature ,
Overspeed, Rotor lock, Undervoltage lockout
Full Three Phase Gate Driver
Integrated Bootstrap Diodes
No heatsink required
12x12 mm² PQFN package
Applications
PM fan motor control
Description
IRDM982-025MB, IRDM982-035MB are the complete PM motor controller including six power MOSFET, high voltage
integrated circuit, high precision analog circuit and integrated digital control algorithm. The controller implements
a Hall sensor based control algorithm for 3-phase sinusoidal permanent magnet motor fan applications.
The integrated digital controller does not require any programming.
Instead there are 16 load curves stored in the internal ROM that can be selected via two resistor pairs.
The IRDM982 is packaged in the 12 x 12 PQFN package and designed to dissipate the power loss through a PCB
without the use of an external heatsink.
There are two products available depending on the power rating of the internal high voltage MOSFETs:
1) IRDM982-025MB – employs six MOSFETs 500V 2A and 600V high voltage IC
2) IRDM982-035MB – employs six MOSFETs 500V 3A and 600V high voltage IC
Data Sheet
Please read the Important Notice and Warnings at the end of this document
www.infineon.com/iMOTION
Revision 1.0
2015-04-08
IRDM982 Series
IRDM982 Series - IRDM982-025MB, IRDM982-035MB
Complete Motion Controller Module for PM AC fan
Features
•
•
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•
•
•
•
•
•
•
•
•
•
•
•
Complete 250V - 500V 3-phase inverter system in one
chip
No heatsink required
Permanent Magnet Sinusoidal Motors Control by Hall
sensors
1)
Selectable 4 or 12 pulse output per revolution
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
Product Summary
Topology
V
OFFSET
Control
Feedback
Temperature
sensor
Package
3 Phase AC
≤ 500 V for IRDM982-025MB,
IRDM982-035MB
Phase Advancement control
DC Bus shunt, 3 Hall sensor
Integrated
Typical Applications
•
Fan motor control
12mm x 12mm PQFN
VBW
VBV
VBU
DCBUS+
15V
VBUS
Hall Sensor
VCC
XTAL
CLKIN
VDD
HALL1+
HALL1-
HALL2+
HALL2-
HALL3+
HALL3-
PG
VSP
EFF
DIR
PGSEL
High Voltage
Smart IC
U
V
W
VSS
DCBUS-
PG
VSP
DIR
COM
IRDM982-025MB
IRDM982-035MB
1) When used with 8 poles motor. In general it is 1 pulse / 3 pulses per electrical revolution.
1
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© 2015 International Rectifier
April 8, 2015
IRDM982 Series
Table of Contents
INTRODUCTION .............................................................................................................................. 3
QUALIFICATION INFORMATION................................................................................................... 5
IRDM982-025MB / IRDM982-035MB ELECTRICAL CHARACTERISTICS................................... 9
LEAD DEFINITIONS ...................................................................................................................... 21
PACKAGE OUTLINE .................................................................................................................... 23
PACKAGE MARKING ................................................................................................................... 25
SOLDERING TEMPERATURE PROFILE ..................................................................................... 26
2
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© 2015 International Rectifier
April 8, 2015
IRDM982 Series
Introduction
IRDM982-025MB, IRDM982-035MB are the complete PM motor controller including six power
MOSFET, high voltage integrated circuit, high precision analog circuit and digital control
algorithm. There are three products depending on power rating of internal high voltage MOSFET
listed below:
1) IRDM982-025MB – employs six MOSFET 500V 2A and 600V high voltage IC
2) IRDM982-035MB – employs six MOSFET 500V 3A and 600V high voltage IC
All two products are packaged in the 12 x 12 PQFN package and designed to dissipate the power
loss through a mating PCB without an external heatsink. All two products contain exactly same
control algorithm and analog functions. The controller implements a Hall sensor based control
algorithm for 3-phase sinusoidal permanent magnet motor fan applications. The control also
employs high efficiency PM motor control algorithm based on a quadratic load curve stored in
internal ROM. 16 possible curves are selectable.
All devices have an on-chip voltage regulator to derive the 3.3V, required by the digital logic, from
the 15V (VCC) supply. The 3.3VDC regulated voltage pin is available externally for connection to
Hall-effect sensors. The IC provides low power standby (less than 7mW) mode of operation that
3.3V power is cut off when VSP (Voltage Input) becomes less than 1.15V to provide further power
efficient operation.
An integrated A/D Converter is used to acquire EFF load curve selection, temperature (internal
temp sensing), and the VSP input that sets the voltage applied to the motor.
An internal temperature sensor is interfaced to the ADC and resulting digital conversion data is
used to control the dynamic overcurrent setpoints as well as max overtemperature limit.
The protection functions include a supply under-voltage lockout (3.3V and 15VDC), over-speed
protection, over-temperature limit and Over-current limitation protections. The reset circuitry
includes a Power-On reset block and a reset input.
All devices do not require any programming. Default coefficients and system parameters are
stored in internal ROM. The EFF input pin, used to adapt to specific motor and load to improve
efficiency, can be used by means of two resistor pairs to choose one of 16 pre-stored load curves
in ROM. DIR is a digital input pins which specify the motor direction command (CW or CCW).
All devices have an on-chip PLL to generate internal clocks. The PLL requires an external low
frequency reference clock (32,768 Hz). The clock can be provided through an RC network
connected to CLKIN and XTAL pins.
The IRDM982-025MB, IRDM982-035MB integrate high and low side gate drivers for applications
up to 500V, it includes integrated Bootstrap FET that emulate bootstrap diode function and six
power MOSFETs. The simplified block diagram is shown in Figure 1 in terms of hardware
elements.
3
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© 2015 International Rectifier
April 8, 2015
IRDM982 Series
Simplified Block Diagram
VCC
VDD
VSV
VSU
VSW
VBU VBV
VBW
VBUS
15VDC
VSP
EFF
VSP
AADV
TEMP
Internal
Temp
sensing
ADC
Dynamic
Overcurrent
Limit
UNDERVOLTAGE
&
STANDBY
VOLTAGE
REGULATOR
3.3VDC (Analog)
3.3VDC (Digital)
HIGH VOLTAGE
REGISTER
FILE
PG
DIR
PSEL
HALL1+
HALL1-
System Clock
(10MHz)
OVERCURRENT
HDU
U DRIVER (H)
ALGORITHM
&
CONTROL
BLOCK
POWER-ON
RESET
U
U DRIVER (H)
HDV
V
HDW
PRE
DRIVERS
HALL2+
HALL2-
CLOCK
PRESCALER
U DRIVER (H)
W
HALL3+
HALL3-
Clock
Synthesis
U DRIVER (L)
DCO
V DRIVER (L)
LDU
LDV
DIGITAL (3.3V)
ANALOG (3.3V/15V)
HIGH VOLTAGE
XTAL/RC
Drive
High Voltage
IC
W DRIVER (L)
LDW
PLLBYPASS
VSS
CLKIN
XTAL
Figure 1 Simplified Block Diagram
4
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COM
© 2015 International Rectifier
April 8, 2015
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