Infineon 2ED4820-EM EB2 2HSV48 User manual

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User Manual
2ED4820-EM EB2 2HSV48
About this document
Scope and purpose
This document describes how to use the evaluation board 2ED4820-EM EB2 2HSV48.
Intended audience
Engineers who want to evaluate the capabilities of the 2ED4820-EM 48V high side gate driver in an easy and
flexible way, at medium current levels (up to 20A DC).
Table of contents
About this document....................................................................................................................... 1
Table of contents............................................................................................................................ 1
1Introduction to the 2ED4820-EM EB2 2HSV48............................................................................. 2
1.1 Overview..................................................................................................................................................2
1.2 Key features.............................................................................................................................................4
1.2.1 Typical connection with a PC and a power supply (Common source + High side current sense) ..4
1.3 Mandatory jumpers.................................................................................................................................5
1.4 Configuring the current sense position..................................................................................................5
1.4.1 Low side current sense:......................................................................................................................5
1.4.2 High side current sense:.....................................................................................................................6
1.5 Overview of the power configurations which can be tested .................................................................6
1.5.1 Common drain power configuration (1 single load):........................................................................6
1.5.2 Common source power configuration, 1 single load:.......................................................................7
1.5.3 Common source power configuration, 2 loads:................................................................................8
1.6 Level shifter and end-of-charge detector.............................................................................................10
2Software user manual............................................................................................................13
2.1 Prerequiresites ......................................................................................................................................13
2.1.1 Installing the Config Wizard for 2ED4820 EB...................................................................................13
2.1.2 Flashing the XMC2Go........................................................................................................................14
2.2 Accessing the user guide in the ‘Help’ menu........................................................................................16
3Board connectors description.................................................................................................17
3.1Power connectors .................................................................................................................................17
3.2 Interface connectors .............................................................................................................................17
3.2.1 Connector J1 ....................................................................................................................................17
3.2.2 Connector J2 ....................................................................................................................................17
3.2.1 Connector J3 ....................................................................................................................................18
3.3 Test points .............................................................................................................................................18
4Schematic ............................................................................................................................19
5Bill of Material ......................................................................................................................21
1PCB: layers ...........................................................................................................................23
Revision history.............................................................................................................................25

User Manual 1.0
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2ED4820-EM EB2 2HSV48
Introduction to the 2ED4820-EM EB2 2HSV48
1Introduction to the 2ED4820-EM EB2 2HSV48
1.1 Overview
The 2ED4820-EM EB2 2HSV48 from Infineon Technologies is a flexible evaluation board designed to showcase
the capabilities of the 2ED4820-EM. This board includes Infineon’s XMC1100 XMC2Go daughter board to
interface to a PC over a USB cable.
A graphical user interface (GUI), called Config Wizard for 2ED4820 EB, is provided via Infineon Development
center. It running on a Windows PC, to control, configure and diagnoze the 2ED4820-EM.
Figure 1 Board overview

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2ED4820-EM EB2 2HSV48
Introduction to the 2ED4820-EM EB2 2HSV48
Figure 2 Power section overview

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Introduction to the 2ED4820-EM EB2 2HSV48
1.2 Key features
•The evaluation board is able to deliver a continuous DC current up to 20A per channel
It comes with a jumper-based configurability, to test various topologies.
Warning: make sure to completely configure the jumpers before turning ON the power supply!!
The various configurations include:
oPower MOSFETs configured either in common drain or common source topologies
oHigh side or low side current sense
oOptional capacitor pre-charge resistive channel, driven either by one channel of the 2ED4820-EM
or by a discrete level shifter supplied by the charge-pump of 2ED4820-EM.
Warning: the power resistors (R22 and R23) are sized to pre-charge a capacitance of max 1mF (one millifarad).
•The board comes with any test points on the edges of the board to easily check signals with an
oscilloscope.
•A USB interface (XMC2GO) is provided, to drive the SPI serial interface of 2ED4820-EM from a PC
•A graphical user interface running on a PC allows to control, configure and diagnose the 2ED4820-EM
1.2.1 Typical connection with a PC and a power supply (Common source +
High side current sense)
Figure 3 Conection with a PC and a power supply

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2ED4820-EM EB2 2HSV48
Introduction to the 2ED4820-EM EB2 2HSV48
1.3 Mandatory jumpers
The 2ED4820-EM EB2 2HSV48 comes with two jumpers: J4 for supply selection and J17 for GND connection.
Both jumpers have to be kept on the board for proper operation:
Figure 4 Mandatory jumpers.
1.4 Configuring the current sense position
1.4.1 Low side current sense:
This configuration is used to sense the current thanks to a low ohmic shunt connected to the ground node:
Figure 5 Configuration for low side current sense.

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2ED4820-EM EB2 2HSV48
Introduction to the 2ED4820-EM EB2 2HSV48
1.4.2 High side current sense:
This configuration is used to sense the current thanks to a low ohmic shunt connected to the supply node:
Figure 6 Configuration for low side current sense.
1.5 Overview of the power configurations which can be tested
There are at least three different power configurations which can be tested.
1.5.1 Common drain power configuration (1 single load):
•Channel A drives the high side MOS of low-ohmic path on OUT3
•Channel B drives the low side MOS of low-ohmic path on OUT3
•Optional capacitive pre-charge with discrete level shifter, connected thanks to a jumper on J8
This configuration can be used either with low side (Config 1) or with high side current sense (Config 2):
2ED4820-EM
SA
GA
48V SB
GB
LOAD
VCP
GPIO
MCU
Optional
Capacitor
Pre-charge
Level
Shifter
VBAT
2x
4.7W
ISN
ISP
ShuntCSO
2ED4820-EM
SA
GA
48V
SB
GB
LOAD
VCP
GPIO
MCU
Optional
Capacitor
Pre-charge
Level
Shifter
VBAT
2x
4.7W
ISN
ISP
ShuntCSO
2x
4.7W
12
Figure 7 Common drain.

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2ED4820-EM EB2 2HSV48
Introduction to the 2ED4820-EM EB2 2HSV48
Figure 8 Configuring the jumpers & connecting the load.
1.5.2 Common source power configuration, 1 single load:
•Channel A drives the ohmic path to pre-charge capacitor(s), connected thanks to a jumper on J7
•Channel B drives the low-ohmic path on OUT1
This configuration can be used either with Low Side (Config 3) or with High Side current sense (Config 4):
2ED4820-EM
SA
GA
VBAT
SB
GB
LOAD
2x
4.7W
48V
ISN
ISP
Shunt
CSO
2ED4820-EM
SA
GA
VBAT
SB
GB
LOAD
2x
4.7W
48V
ISN
ISP
ShuntCSO
4
3
Figure 9 Common source, 1 single load.

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Introduction to the 2ED4820-EM EB2 2HSV48
Figure 10 Configuring the jumpers & connecting the load.
1.5.3 Common source power configuration, 2 loads:
•Channel A drives the low-ohmic path on OUT2
•Channel B drives the low-ohmic path on OUT1
•Optional capacitive pre-charge with discrete level shifter, connected thanks to a jumper on J8
This configuration can be used either with Low Side (Config 5) or with High Side current sense (Config 6)
2ED4820-EM
SA
GA
VBAT
48V
SB
GB
VCP
GPIO
MCU
Optional
Capacitor
Pre-charge
Level
Shifter
ISN
ISP
ShuntCSO
2x
4.7W
2ED4820-EM
SA
GA
VBAT
48V
SB
GB
LOAD1
LOAD2
VCP
GPIO
MCU
Optional
Capacitor
Pre-charge
Level
Shifter
2x
4.7W
ISN
ISP
ShuntCSO
LOAD1
LOAD2
5 6
Figure 11 Common source, 2 loads.

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2ED4820-EM EB2 2HSV48
Introduction to the 2ED4820-EM EB2 2HSV48
Figure 12 Configuring the jumpers & connecting the load.

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2ED4820-EM EB2 2HSV48
Introduction to the 2ED4820-EM EB2 2HSV48
1.6 Level shifter and end-of-charge detector
The 2ED4820-EM 2HSV48 EB comes with two features external to 2ED4820-EM:
1. High voltage level shifter, to optionally drive the resistive path for capacitor pre-charge either from an
MCU GPIO (P0.14_LSh) or from an external waveform generator (using TP23)
Figure 13 High voltage level shifter.
The level shifter is powered from the Charge pump (VCP) in 2ED4820-EM, which generates a supply 15V above
the 48V supply connected to J15. The charge pump can deliver up to 10mA for such an external circuitry.
J8 allows to select how the resistive path made by U2, U13, R22 and R23 is driven:
•Using a jumper on pins 1 & 2, the level shifter drives the resistive path
•Using a jumper on pins 2 & 3, 2ED4820-EM drives the resistive path from channel A (GA pin)
J11 also has to be configured properly, to connect the SA pin of 2ED4820-EM when it is driving the resistive
path: put the jumper on pins 1 & 2.
2. End-of-charge detector, based on a comparator, to detect when the capacitor(s) are sufficiently charged to
switch ON the low-ohmic path.

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Figure 14 End of charge detector.
The voltage out of the resistive path, which is charging the capacitor, is compared to a reference voltage
generated from the supply voltage supplying the board.
•R38 & R39 divide the voltage on the capacitor: CP+ is biased to 12/(270+12) = 4.255 % of OUT1 voltage.
•R40, R41 & R42 divide the voltage of the supply: R41 // R42 is : (10*270)/(10+270) = 9.64 kΩ, so CP- is biased to
(9.64) / (270+9.64 ) = 3.448 % of the supply voltage applied on VBAT_GD.
The comparator output is triggered when CP+ = CP-, which means:
[ 4.25 % x V(OUT1) ] = [ 3.448 % x V(VBAT_GD) ] →V(OUT1) = 0.03448/0.04255 x V(VBAT_GD)
→V(OUT1) = 81% V(VBAT_GD).
The comparator output is triggered when the voltage on the capacitor has reached 81 % of the supply rail.
The value of R42 can be modified to change this percentage if required:
Table 1 Percentage of VBAT_GD for which the comparator triggers
Value of R42 (kΩ)
none
270
120
56
39
27
Percentage of VBAT_GD
87 %
81 %
77.7 %
71.6 %
67.3 %
61.8 %

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Figure 15 End of charge detector: scope capture.

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2Software user manual
In order to interact with the SPI interface of the 2ED4820-EM, an XMC2Go daughter board is assembled on top
of the EB2 2HSV48 board. A firmware has been developed for the XMC MCU to drive the 2ED4820-EM over SPI.
To enable easy testing, a Graphical User Interface has also been developed, which runs on a PC and interacts
with the XMC2Go daughter board by sending/receiving messages over USB: Config Wizard for 2ED4820 EB.
2.1 Prerequiresites
2.1.1 Installing the Config Wizard for 2ED4820 EB
For your PC to interact with the XMC2Go over USB, install the Infineon Developer Center launcher
from this link: Infineon Developer Center Launcher, using a web browser:
Figure 16 Installing the Infineon Developper Center.
Follow Step 1 + Step 2 to install the launcher.
In Step 3, search for the Config Wizard for 2ED4820 EB in the “Tools” menu, download and install it (Step 4):
Figure 17 Installing the Config Wizard for 2ED4820 EB.

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2.1.2 Flashing the XMC2Go
Once the Config Wizard for 2ED4820 EB software is installed on the PC, the XMC2Go can be connected to the
PC thanks to a micro USB cable. To ensure consistency with the Config Wizard for 2ED4820 EB software
running on the PC, it is necessary to flash the firmware of the XMC microcontroller.
1st step: launch the Config Wizard for 2ED4820 EB software on the PC, from the Infineon Developer Center:
Figure 18 Launching the program.
The window shown in the next figure should pop-up on your PC:
Figure 19 Welcome page.

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2nd step: establish the connection with the XMC2Go board:
Figure 20 Selecting the Com Port & activating the connection.
3rd step: flash the firmware in the XMC MCU memory
Figure 21 Flash the XMC MCU code.
The XMC firmware is now updated to be in sync with Config Wizard for 2ED4820 EB version.
This update of the XMC firmware has to be performed every time a new version
of the Config Wizard for 2ED4820 EB is downloaded and installed!!

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2.2 Accessing the user guide in the ‘Help’ menu
Access the help menu to discover the functionality of the Config Wizard for 2ED4820 EB software (the help
opens in a web browser, as an html file):
Figure 22 On-line user guide.

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3Board connectors description
3.1 Power connectors
Name
Connector
Type
Description
VBAT
J15/1
Power supply
Positive power supply 48V
GND
J16/2
Ground power
Ground
GND_Load
J16/1
Ground power
Ground connection for the load, in low side current sense configuration
OUT1
J13/1
Power output
Output 1 for a load, up to 20 A DC
OUT2
J13/2
Power output
Output 2 for a load, up to 20 A DC
OUT3
J14/1 and J14/2
Power output
Output 3 for a load, up to 20 A DC
3.2 Interface connectors
3.2.1 Connector J1
Name
Pin
Type
Description
P2.7_OFF
1
Digital Input
Connects to switch S2
P2.9_CSO
2
Analog Input
Connects to CSO output on 2ED4820-EM through 12kΩ series resistor (R8)
P2.10_ON
3
Digital Input
Connects to switch S1
P2.11_MOSI
4
Digital Output
Connects to MOSI input on 2ED4820-EM through 1kΩ series resistor (R5)
GND
5
Ground
Ground
+3V3_XMC
6
Supply
3V3 supply, connects to VDD pin of 2ED4820-EM if a jumper is positioned
on pins 1 & 2 of J4 (default config)
P0.0_CP_OUT
7
Digital Input
Connects to U12 comparator output to detect end of capacitor charge
NC
8
No connected
-
3.2.2 Connector J2
Name
Pin
Type
Description
P2.6_MISO
1
Digital Input
Connects to MISO output on 2ED4820-EM through 1kΩ series resistor (R4)
P2.0_INT
2
Digital Output
Connects to INTERRUPT input on 2ED4820-EM through 1kΩ series
resistor (R2)
NC
3
No connected
-
P0.14_LSh
4
Digital Output
Connects to the input of the discrete level shifter
P0.9_CSN
5
Digital Output
Connects to CSN input on 2ED4820-EM through 1kΩ series resistor (R6)
P0.8_SCLK
6
Digital Output
Connects to SCLK input on 2ED4820-EM through 1kΩ series resistor (R7)
P0.7_ENA
7
Digital Output
Connects to ENABLE input on 2ED4820-EM through 1kΩ series resistor
(R1)
P0.6_SAFEN
8
Digital Output
Connects to SAFESTATEN input on 2ED4820-EM through 1kΩ series
resistor (R3)

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3.2.1 Connector J3
Note: J3 is not assembled, reference = 09195166324 from Harting or compatible connector
Name
Pin
Type
Description
NC
1
No connected
-
GND
2
Ground
Ground
NC
3
No connected
-
P0.14_LSh
4
Supply
5V supply, connects to VDD pin of 2ED4820-EM if a jumper is positioned
on pins 2 & 3 of J4
NC
5
No connected
-
NC
6
No connected
-
NC
7
No connected
-
P2.0_INT
8
Digital Output
Connects to INTERRUPT input on 2ED4820-EM through 1kΩ series
resistor (R2)
P0.9_CSN
9
Digital Output
Connects to CSN input on 2ED4820-EM through 1kΩ series resistor (R6)
P0.6_SAFEN
10
Digital Output
Connects to SAFESTATEN input on 2ED4820-EM through 1kΩ series
resistor (R3)
P0.8_SCLK
11
Digital Output
Connects to SCLK input on 2ED4820-EM through 1kΩ series resistor (R7)
P0.7_ENA
12
Digital Output
Connects to ENABLE input on 2ED4820-EM through 1kΩ series resistor
(R1)
P2.6_MISO
13
Digital Input
Connects to MISO output on 2ED4820-EM through 1kΩ series resistor (R4)
P2.10_ON
14
Digital Input
Connects to switch S1
P2.11_MOSI
15
Digital Output
Connects to MOSI input on 2ED4820-EM through 1kΩ series resistor (R5)
P2.9_CSO
16
Analog Input
Connects to CSO output on 2ED4820-EM through 12kΩ series resistor
(R8)
3.3 Test points
Name
Signal name
Type
Description
TP1
SCLK
Digital Input
Directly connects to input pin SCLK on 2ED4820-EM
TP2
CSN
Digital Input
Directly connects to input pin CSN on 2ED4820-EM
TP3
MOSI
Digital Input
Directly connects to input pin MOSI on 2ED4820-EM
TP4
MISO
Digital output
Directly connects to input pin MISO on 2ED4820-EM
TP5
SAFESTATEN
Digital Input
Directly connects to input pin SAFESTATEN on 2ED4820-EM
TP6
INTERRUPT
Digital Input
Directly connects to input pin INTERRUPT on 2ED4820-EM
TP7
ENABLE
Digital Input
Directly connects to input pin ENABLE on 2ED4820-EM
TP8
CSO
Analog output
Directly connects to output pin CSO on 2ED4820-EM
TP9
VBAT_GD
Analog supply
Directly connects to supply pin VBAT on 2ED4820-EM
TP10
GA
Analog output
Directly connects to output pin GA on 2ED4820-EM
TP11
GB
Analog output
Directly connects to output pin GB on 2ED4820-EM
TP12
SA
Analog input
Directly connects to input pin SA on 2ED4820-
TP13
SB
Analog input
Directly connects to input pin SB on 2ED4820-
TP14
OUT1
Power output
Connects to power signal OUT1
TP15
OUT2
Power output
Connects to power signal OUT2
TP16
OUT3
Power output
Connects to power signal OUT3
TP17
GND
Ground
Connects to board ground plane
TP18
VDD
Supply
Directly connects to supply pin VDD on 2ED4820-EM
TP19
VCP
Supply
Directly connects to supply pin VCP on 2ED4820-EM
TP20
CPL
Analog output
Directly connects to output pin CPL on 2ED4820-EM
TP21
P0.0_CP_OUT
Digital output
Connects to U12 comparator output to detect end of capacitor charge
TP22
CP+
Analog output
Connects to U12 comparator positive input
TP23
Dr_Lsh
Digital input
Connects to Level shifter input

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4Schematic
Figure 23 Schematic: power section

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Figure 24 Schematic: gate driver section