Freescale Semiconductor KIT33926PNBEVBE Manuale utente

Freescale Semiconductor

User’s Guide

Document Number: KT33926UG

Rev. 2.0, 12/2012



KIT33926PNBEVBE Evaluation Board User’s Guide

Featuring the MC33926 5.0A Throttle Control H-Bridge IC with Slew Rate Control

and the MC33810 Automotive Engine Control IC

Figure 1. KIT33926PNBEVBE Evaluation Board

Table of Contents

1 Kit Contents / Packing List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2 Important Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

3 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

4 Evaluation Board Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

5 MC33926 Device Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

6 MC33810 Device Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

7 Required Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

8 Evaluation Board Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

9 Installing SPIGen Freeware on your Computer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

10 EVB Setup and Using the Hardware. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

11 Evaluation Board Hardware Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

12 Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

13 Board Layout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

14 Bill of Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

15 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

16 Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

KT33926UG, Rev. 2.0

2Freescale Semiconductor

Kit Contents / Packing List

1 Kit Contents / Packing List

• Assembled and tested evaluation board/module in anti-static bag.

• Ribbon cable assembly with 16-pin connector

• CD-ROM containing:

• Supporting documentation for featured device (including data sheet and user's guide)

– Schematic of evaluation board

–PCBartwork

– Bill of material for evaluation board

– Instruction sheet for evaluation board

• SPIGen 5.0.1 software

• Warranty card

KT33926UG, Rev. 2.0

Freescale Semiconductor 3

Important Notice

2 Important Notice

Freescale provides the enclosed product(s) under the following conditions:

This evaluation kit is intended for use of ENGINEERING DEVELOPMENT OR EVALUATION

PURPOSES ONLY. It is provided as a sample IC pre-soldered to a printed circuit board to make it easier

to access inputs, outputs, and supply terminals. This EVB may be used with any development system or

other source of I/O signals by simply connecting it to the host MCU or computer board via off-the-shelf

cables. This EVB is not a Reference Design and is not intended to represent a final design

recommendation for any particular application. Final device in an application will be heavily dependent

on proper printed circuit board layout and heat sinking design as well as attention to supply filtering,

transient suppression, and I/O signal quality.

The goods provided may not be complete in terms of required design, marketing, and or manufacturing

related protective considerations, including product safety measures typically found in the end product

incorporating the goods. Due to the open construction of the product, it is the user's responsibility to take

any and all appropriate precautions with regard to electrostatic discharge. In order to minimize risks

associated with the customers applications, adequate design and operating safeguards must be provided

by the customer to minimize inherent or procedural hazards. For any safety concerns, contact Freescale

sales and technical support services.

Should this evaluation kit not meet the specifications indicated in the kit, it may be returned within 30 days

from the date of delivery and will be replaced by a new kit.

Freescale reserves the right to make changes without further notice to any products herein. Freescale

makes no warranty, representation or guarantee regarding the suitability of its products for any particular

purpose, nor does Freescale assume any liability arising out of the application or use of any product or

circuit, and specifically disclaims any and all liability, including without limitation consequential or

incidental damages. “Typical” parameters can and do vary in different applications and actual

performance may vary over time. All operating parameters, including “Typical”, must be validated for each

customer application by customer’s technical experts.

Freescale does not convey any license under its patent rights nor the rights of others. Freescale products

are not designed, intended, or authorized for use as components in systems intended for surgical implant

into the body, or other applications intended to support or sustain life, or for any other application in which

the failure of the Freescale product could create a situation where personal injury or death may occur.

Should the buyer purchase or use Freescale products for any such unintended or unauthorized

application, the buyer shall indemnify and hold Freescale and its officers, employees, subsidiaries,

affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable

attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with

such unintended or unauthorized use, even if such claim alleges that Freescale was negligent regarding

the design or manufacture of the part. Freescale™ and the Freescale logo are trademarks of Freescale

Semiconductor, Inc. All other product or service names are the property of their respective owners.

KT33926UG, Rev. 2.0

4Freescale Semiconductor

Introduction

3 Introduction

The KIT33926PNBEVBE Evaluation Board (EVB) is an easy-to-use circuit board that allows the user to

exercise all the functions of the MC33926 H-Bridge circuit. The EVB communicates to a PC through a

USB/SPI Dongle connected to the PC’s USB port. The Freescale SPIGen program provides the User

Interface to the MC33926 EVB’s SPI port and allows the user to send commands to and receive error

messages from the IC. There is also a MC33810 circuit on the EVB which contains four, low side, drivers

and four General Purpose MOSFET Gate drivers which are used to provide PWM signals to the various

MC33926 inputs.

4 Evaluation Board Features

• A MC33926 H-Bridge IC

• A MC33810 PWM Driver (IID) IC

• A USB to SPI Dongle interface, through which 5V power is supplied

• Power conditioning circuitry

• A set of seven Input Select Jumpers.

5 MC33926 Device Features

This MC33926 is designed primarily for automotive electronic throttle control, but is applicable to any

low-voltage DC servo motor control application within the current and voltage limits stated in this

specification. This device has the following features:

• 8.0 V to 28 V Continuous Operation (Transient Operation from 5.0 V to 40 V)

• 225 mmaximum RDS(ON) @ 150°C (each H-Bridge MOSFET)

• 3.0 V and 5.0 V TTL / CMOS Logic Compatible Inputs

• Overcurrent Limiting (Regulation) via Internal Constant-Off-Time PWM

• Output Short Circuit Protection (Short to VPWR or Ground)

• Temperature-Dependant Current-Limit Threshold Reduction

• All Inputs have an Internal Source/Sink to Define the Default (Floating Input) States

• Sleep Mode with Current Draw < 50 µA (with Inputs Floating or Set to Match Default Logic States)

6 MC33810 Device Features

The MC33810 is an eight channel output driver IC intended for automotive engine control applications.

This device has the following features:

• Designed to Operate over the range of 4.5 V ≤VPWR ≤36 V

• Quad Ignition IGBT or MOSFET gate pre-driver with Parallel/SPI and/or PWM Control

• Quad Injector Driver with Parallel/SPI Control

• Interfaces Directly to MCU Using 3.3 V / 5.0 V SPI Protocol

• Injector Driver Current Limit - 4.5A Typical

• Independent Fault Protection and Diagnostics

• VPWR Standby Current 10 µA Typical

KT33926UG, Rev. 2.0

Freescale Semiconductor 5

Required Equipment

7 Required Equipment

Minimum required equipment:

• USB enabled Computer with Windows XP or higher

• SPIGen 7.0 or greater

• One of the following two USB-to-SPI kits:

• USB/SPI Dongle board (KITUSBSPIDGLEVME) plus 16-Pin Ribbon Cable

• Typical loads (DC servo motor, fuel injectors, solenoids, lamps, and relays)

8 Evaluation Board Configuration

Figure 2. Evaluation Board Setup

USB/SPI Dongle

(KITUSBSPIDGLEVME)

Throttle Control H-Bridge

(KIT33926PNBEVBE)

16-Pin SPI Ribbon

Cable

Power Supply

GND

VBAT

KT33926UG, Rev. 2.0

6Freescale Semiconductor

Installing SPIGen Freeware on your Computer

9 Installing SPIGen Freeware on your Computer

There current version of SPIGen is designed to run on a USB enabled computer with Windows XP,

Windows 2000, or Windows NT.

This version of SPIGen includes a README.txt file which will describe the operating systems where the

software should be installed. Before you install the program, refer to the SPIGen README.txt file to check

the compatibility of the installation program and your computer operating system.

To install the software from the CD-ROM, insert the CD-ROM into your CD drive. Click the Start button,

and then click “Run…”.

While running Windows NT, Windows 2000, or Windows XP, type

“D:\SPIGen_Win_NT_2000_XP\Setup.exe” in the box, and then click “OK”.

Several temporary files will be copied to your computer, and then the Installation Wizard will guide you

through the rest of the process.

To use SPIGen, Go to the Windows Start menu, then Programs, then SPIGen, and click on the SPIGen

icon. The SPIGen “Generic SPI Generator” graphic user interface (GUI) will appear. Go to the File menu

in the upper left hand corner of the GUI, and select Open, then browse the CD to find and select the

SPIGen Configuration “.spi” file for the EVB you are using. Click Open, and SPIGen will open a

specifically configured SPI command generator for your EVB.

Figure 3. SPI Generator GUI

KT33926UG, Rev. 2.0

Freescale Semiconductor 7

EVB Setup and Using the Hardware

10 EVB Setup and Using the Hardware

To perform the examples included in the CD the following connections and setup must be performed:

1.Make sure the SPIGen 5.0X program is installed on the PC and it can communicate with the USB/SPI Dongle as

described in that kit’s documentation.

2.Connect the USB/SPI Dongle to the MC33926 EVB via a 16 pin ribbon cable. Make sure to orient the cable so that

pin1 on both the USB/SPI Dongle and the MC33926 EVB are connected correctly, pin 1 to pin 1.

3.Connect the USB/SPI Dongle to a PC, LED 2 on the USB/SPI Dongle and the VDD LED on the MC33926 board

should both be illuminated.

4.Attach a +12 VDC supply (do not turn on power yet) to the power connector on the MC33926 EVB, making sure to

observe the GND and +12 V terminals. The current capability of the +12 V supply should exceed the maximum

total current that the number of simultaneously ON loads will require.

5.Attach loads to the MC33810 OUT0 - OUT3 terminals between the VPWR terminals and the OUTx terminals. One

possible demo load is a 10 W halogen G4 Base T3 bulb (used in landscape lighting applications). This load will

draw approximately 850 mA and fits nicely into the screw terminals.

6.Attach 10 W halogen G4 Base T3 bulbs to the H-Bridge OUT1 and OUT-2 terminals from OUT1 to GND and

another load from OUT2 to GND.

7.Launch SPIGen and from the “File” menu, select “Open” and browse to the CD containing the

“MC33926_EVB_CONFIGURATION_FILE.spi” file. The title on the SPIGen screen should change from

“Generic SPI Generator” to “MC33926 SPI Generator”.

8.Turn on the +12 Volt Supply. The bulbs connected to the H-Bridge OUT1 and OUT2 should illuminate immediately.

Verify that all is working correctly by clicking on the “Extra Pins” button in the SPIGen main screen and then click

on the DATA 0 “High” button. The OUT1 bulb should extinguish. Clicking on the DATA 1 “High” button should

extinguish the OUT2 bulb.

9.Click on the Control 0 “High” button. The bulb connected to OUT0 on the MC33926 EVB and LED1 on the

USB/SPI Dongle should be illuminated. Click on the Control 0 “Low” button and the bulb connected to OUT0 and

LED1 on the USB/SPI Dongle.

KT33926UG, Rev. 2.0

8Freescale Semiconductor

Evaluation Board Hardware Description

11 Evaluation Board Hardware Description

This EVB consists of a 33926 H-Bridge, a 33810 PWM Driver (IID) circuit, a USB to SPI Dongle interface,

power conditioning circuitry, and a set of seven Input Select Jumpers. All +5.0 volt VDD power required

by the EVB is obtained via the USB/SPI Dongle interface. The Hardware Block Diagram is shown below:

Figure 4. 33926 EVB Block Diagram

11.1 LED Display

Several LED’s are provided as visual output devices for the MC33926 EVB board. A list of the LED

devices is shown below:

1.VDD LED - Indicates when a +5.0 Volt supply is connected

2.VPWR LED - Indicates when +12 Volt supply is connected

3.Fault LED - Illuminates when the MC33926 detects a fault

4.Output LED - Red/Green LED that indicates which direction the current is flowing in the legs of the H-Bridge.

Reverse Battery

And Transient

Protection

MC33810

33810

OUT0 –

OUT3

Screw

Connectors

MC 33926

H-Bridge

MC33926 Evaluation Board Block Diagram

16 conductor Flat Cable

SO, SI,

CSB,

CLK

SPI

Port

DIN0-3

GIN0-3

VPWR

LED

8 parallel control

lines

OUT0-3

GD1-3

VBat

VPWR,

VDD

RED/GREEN

OUTPUT LED

USB/SPI

DONGLE

VDD

LED

H-BRIDGE

OUT1 OUT2

Screw

Connectors

VDD

DISABLE_1

DISABLE_2B

INPUT 1

INPUT 2

INVERT

SLEW

FAULT

LED

3 parallel control lines

JUMPERS

KT33926UG, Rev. 2.0

Freescale Semiconductor 9

Evaluation Board Hardware Description

11.2 I/O Jumper Definitions (J3)

The EVB contains seven jumpers that connect the inputs of the 33926 as follows (Bold = factory setting):

The DATA0 -DATA4 signals are parallel outputs from the USB/SPI Dongle that can be controlled directly

from the SPIGen program. The BGD0 - BGD3 signals are the outputs of the MC33810 pre-drivers (GD0

-GD3) after being buffered by discrete MOSFETS. (See the schematic for detailed information) The GD0

- GD3 outputs can be set-up to provide a PWM signal, to vary the H-Bridge output. The buffered PWM

signals (BGD0 - BGD3)can be selected via the jumpers to be connected to the Input 1, Input 2, Disable_1

or Disable_2B inputs. This flexibility is provided to illustrate the many ways the MC33926 can be driven

to achieve the same result. An example configuration file called

“MC33926_EVB_CONFIGURATION_FILE.spi” is provided on the CD which contains batch file

examples. In these batch file examples are the instructions to set-up the MC33810 to PWM the GDx

outputs. The MC33810 data sheet (also on the CD provided) describes, in detail, the way to set the PWM

frequency and duty cycle for each of the GD outputs (and corresponding BGDx outputs).

If the user prefers to supply the various MC33926 input signals externally, other than from the USB-SPI

Interface or the PWM signals (BGDx), the jumpers can be removed and connections can be made to the

open pin number 2’ s.

11.3 USB/SPI Dongle Connector

The USB/SPI dongle connector is a 16 pin,.1” center, dual-row connector that is designed to interface

directly to the USB/SPI Dongle unit. The USB/SPI dongle connector consists of the following 16 pins:

NAME Position Connection

INPUT 1 1-2/DATA0 2-3/BGD0

INPUT 12 1-2/DATA1 2-3/BGD1

INVERT 1-2/GND 2-3/DATA4

ENABLE 1-2/GND 2-3/VDD

DISABLE_1 1-2/GND 2-3/BGD2

DISABLE_2B 1-2/VDD 2-3/BGD3

SLEW 1-2/GND 2-3/VDD

Number Name Description

1CSB SPI signal, Chip Select Bar

2CNTL2 Parallel port signal CNTL2

3SO SPI signal, Serial Out

4CNTL1 Parallel port signal CNTL1

5SI SPI signal, Serial In

6CNTL0 Parallel port signal CNTL0

KT33926UG, Rev. 2.0

10 Freescale Semiconductor

Evaluation Board Hardware Description

This connector mates with the 16 conductor flat cable that connects to the USB/SPI Dongle

(KITUSBSPIDGLEVME).

11.4 Screw Terminal Connections -

The MC33926PNBEVBE board contains input and output screw terminal connections to allow easy

access to the MC33926’s drive circuits.

The diagram below shows the locations of the screw terminals and their functional definitions:

Figure 5. PCB Top Assembly Layer with Screw-Terminal Connectors Indicated

7SCLK SPI signal, Serial Clock

8DATA4 Parallel port signal DATA4

9CNTL3 Parallel port signal CNTL3

10 DATA3 Parallel port signal DATA3

11 VDD +5 Volt VDD from USB

12 DATA2 Parallel port signal DATA2

13 NC Unused

14 DATA1 Parallel port signal DATA1

15 GND Signal Ground

16 DATA0 Parallel port signal DATA0

Number Name Description

Power Terminal

SPI/USB Dongle

Connector

H-Bridge Output

Connector

MC33810 Output

Terminal Connector

Indice

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