International Rectifier
El Segundo, California
PROVISIONAL SPECIFICATION
FOR THE GENERIC DOL POWER MODULE
11867-E01
Document : EN-0346, Rev. 03
Page 1 of 10
The technical content of this document is the responsibility of the
El Segundo Automotive Systems Department 9810
IR AUTOMOTIVE
DOCUMENT NUMBER
EN-0346
El Segundo, CA
Table of Contents
TITLE PAGE ..............................................................................................................................1
TABLE OF CONTENTS .............................................................................................................2
0 PURPOSE ...............................................................................................................................3
1 SCOPE ....................................................................................................................................3
2 APPLICABLE DOCUMENTS..................................................................................................3
3 DEFINITIONS/TERMS ............................................................................................................3
4 RESPONSIBILITY/AUTHORITY .............................................................................................3
5 TOOLS/EQUIPMENT/MATERIALS ........................................................................................3
6 PROCEDURE/SPECIFICATION .............................................................................................3
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IMPORTANT INFORMATION – This document is provisional. Data and specifications subject to change without notice.
IR AUTOMOTIVE
DOCUMENT NUMBER
EN-0346
El Segundo, CA
0
Purpose
This document establishes the Specification for the Generic DOL Power Module
11867-E01
1
Scope
This document defines the electrical characteristics and specifications for the
Generic DOL Power Module 11867-E01.
2
Applicable Documents
EN-0244
EN-0345
01-5575
Power Module (Drawing)
Schematic Diagram
IRFC2804 Die Outline Drawing
3
Definitions/Terms
Not Applicable.
4
Responsibility/Authority
The department 9810 is responsible for the technical content of the document.
5
Tools/Equipment/Materials
Not Applicable.
6
Procedure/Specification
See attached document.
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IMPORTANT INFORMATION – This document is provisional. Data and specifications subject to change without notice.
IR AUTOMOTIVE
DOCUMENT NUMBER
EN-0346
El Segundo, CA
Provisional Specification
for the Power Module 11867-E01
A. Application
The module’s application is to supply power to the trapezoidal brushless DC motor in Electric and Hydraulic
Electric Power Steering (EPS and HEPS) systems, by switching power to the three phases of the motor.
B.
Module Characteristics/Components
T
ambient
= 25°C unless otherwise specified.
-
-
-
The electric circuit schematic is shown in schematic diagram EN-0345.
With reference to the electrical circuit schematic, the reference designators of the inverter die are UH
(Q1), VH (Q3), WH (Q5), UL (Q2), VL (Q4) and WL (Q6) – HEX 4.0, 40V (IRFC2804).
Electrical interfaces to battery
The module gets battery power through B+ and GND terminals. All current switched to the motor by the
power module is supplied from these terminals. Power module physical outline is shown in EN-0244.
Electrical interface to the three phases of the motor.
The module’s terminals U, V, and W, provide the electrical interface with the three phases of the motor.
Electrical interface to the control circuitry.
The electrical interface between module and control board is achieved through fourteen pins. Pin
designation is shown in the electrical schematic EN-0345 and the Power Module drawing EN-0244.
Mounting features.
The power module is to be mounted using a thermally conductive adhesive and screws between the module
and the steering housing.
-
-
-
- Current Sense Resistor
Current sensing is achieved through a low inductance, 0.3 mΩ shunt resistor, which is connected between
the ground terminal GND and the source of 3 Low side MOSFETs. Accuracy of the current sense resistor is
+/- 1%. Accuracy of the current signal will be based on characterization results upon customer approval.
Current sense resistor value is not fixed. Upon customer request and IR approval, modules with different
current resistor values (i.e. 0.5 mΩ, 0.7 mΩ,
1
mΩ) can be provided.
-
Temperature sensor
One NTC Thermistor positioned beside a MOSFET, provides a temperature reading that can be correlated
to the Junction temperature of that MOSFET. The NTC Thermistor is 10KΩ @25°C +/-5% with a B-value
3380K @25°C +/-3%. Upon customer request and IR approval, modules with different thermistor values can
be provided.
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IMPORTANT INFORMATION – This document is provisional. Data and specifications subject to change without notice.
IR AUTOMOTIVE
DOCUMENT NUMBER
EN-0346
El Segundo, CA
C.
Handling Recommendations
The Power Module 11867-E01 is an ESD (Electro Static Discharge) sensitive device. It should be handled in
accordance with “IEC 61340-5-1 Electrostatics- Part 5-1: Protection of electronic devices from electrostatic
phenomena- General requirements” and “IEC 61340-5-2 Electrostatics- Part 5-2: Protection of electronic devices
from electrostatic phenomena- User Guide” “IEC” is the “International Electrotechnical Commission”. These
documents are equivalent to the European Standard (EN) and the British Standard (BS) of the same numerical
designation.
These are standards that describe the special requirements and precautions needed when handling ESDS
(Electro Static Discharge Sensitive) devices.
The Power Module 11867-E01 is built with large FET’s when compared with typical discrete components. These
large FET’s also provide improved ESD performance versus the typical discrete components.
The Power Module 11867-E01 provides ESD performance above 2 kV against the Human Body Model (HBM;
100pF, 1500Ω), above 2 kV against the Machine Model (200pF, 0Ω), and 2 kV against the Charge Device
Model.
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IMPORTANT INFORMATION – This document is provisional. Data and specifications subject to change without notice.
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