Eurotech ACS-5151 User manual

Rev. 1.0 - November 2008 - ETH_ACS-5151_USM1.0
DIGITAL TECHNOLOGIES FOR A BETTER WORLD
www.eurotech.com
ACS-5151
50 Watt PC/104 Automotive Power Supply Module
Vin = 8 ~ 40VDC
USER’S MANUAL

ACS-5151 – User’s Manual
Disclaimer
The information in this manual has been carefully checked and is believed to be accurate. Eurotech assumes no
responsibility for any infringements of patents or other rights of third parties, which may result from its use.
Eurotech assumes no responsibility for any inaccuracies that may be contained in this document. Eurotech makes no
commitment to update or keep current the information contained in this manual.
Eurotech reserves the right to make improvements to this document and/or product at any time and without notice.
Warranty
This product is supplied with a limited warranty. The product warranty covers failure of any Eurotech manufactured
product caused by manufacturing defects. Eurotech will make all reasonable effort to repair the product or replace it with
an equivalent alternative. Eurotech reserves the right to replace the returned product with an alternative variant or an
equivalent fit, form and functional product. Delivery charges will apply to all returned products.
Trademarks
All trademarks, both marked and not marked, appearing in this document are the property of their respective owners.
WEEE
The information below is issued in compliance with the regulations as set out in the 2002/96/CE directive, subsequently
superseded by 2003/108/CE. It refers electrical and electronic equipment and the waste management of such products.
When disposing of a device, including all of its components, subassemblies and materials that are an integral part of the
product, you should consider the WEEE directive.
This symbol has been attached to the equipment or, if this has not been possible, on the packaging,
instruction literature and/or the guarantee sheet. By using this symbol, it states that the device has been
marketed after August 13th 2005, and implies that you must separate all of its components when possible,
and dispose of them in accordance with local waste disposal legislations.
•Because of the substances present in the equipment, improper use or disposal of the refuse
can cause damage to human health and to the environment.
•With reference to WEEE, it is compulsory not dispose of the equipment with normal urban
refuse, arrangements should be instigated for separate collection and disposal.
•Contact your local waste collection body for more detailed recycling information.
•In case of illicit disposal, sanctions will be levied on transgressors.
RoHS
This device, including all it components, subassemblies and the consumable materials that are an integral part of the
product, has been manufactured in compliance with the European directive 2002/95/EC known as the RoHS directive
(Restrictions on the use of certain Hazardous Substances). This directive targets the reduction of certain hazardous
substances previously used in electrical and electronic equipment (EEE).
© 2008 Eurotech Spa
Eurotech S.p.A.
A member of the Eurotech Group
Via Fratelli Solari, 3/a
33020 - AMARO (UD)
ITALY

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Introduction
Conventions used within this Manual
The following conventions are used throughout this manual.
The “Mode” of the register:
Symbol / Text Definition
RW Readable and Writable register
RO Read only register
W Meaning of the register when written
R Meaning of the register when read
Hexadecimal numbering:
Hexadecimal numbers are indicated with an “h” suffix (for example: 11Ch)
Symbols and Text used in Pin-out tables:
Symbol / Text Definition
◄Input
►Output
◄► Bi-Directional
▬Passive
Module specific Dependent on module installed
NC Not Connected
Reserved Use reserved to Eurotech, must remain unconnected
# Active low signal
Warnings and Important Notices:
Within this manual you will find the following tables, please ensure that you read and understand these as
they are intended to highlight potential risks or precautions that should be taken.
Warnings:
Information to alert you to potential hazards:
Potential personal injury or damage to a system, device, or program.
Information and/or Notes:
Indicates important features or instructions that should be observed

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Technical Assistance
If you have any technical questions or if you cannot isolate a problem with your device, please e-mail the
Eurotech Technical Support Team: email: [email protected]
Before returning any Eurotech product, for any reason, you must e-mail the Eurotech Technical Support
Team on the above email address, giving the following information; you will then be sent an RMA number
(Returned Material Authorization) for the return of the material:
•Model number (see Figure 1)
•Serial number (see Figure 1)
•Detailed fault description
•Company Details
•Contact details
Transportation
When transporting the module for any reason it should be packed using anti-static material and placed in a
sturdy box with enough packing material to adequately cushion it.
Warning:
Any product returned to Eurotech that is damaged due to inappropriate packaging will
not be covered by the warranty!
Board labelling
On the external side of the ISA Bus connector, you will find several labels displaying the following:
•Batch Number
•Serial Number
•Model Number
•Hardware Revision
Figure 1. Board label locations
Serial Number Model Number Hardware Revision
Batch Number

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Table of Contents
Introduction....................................................................................................................................................3
Conventions used within this Manual...............................................................................................................3
The “Mode” of the register:.......................................................................................................................................... 3
Hexadecimal numbering: ............................................................................................................................................ 3
Symbols and Text used in Pin-out tables: .................................................................................................................. 3
Warnings and Important Notices:................................................................................................................................ 3
Technical Assistance.......................................................................................................................................4
Transportation..................................................................................................................................................4
Board labelling.................................................................................................................................................4
Table of Contents ..........................................................................................................................................5
Chapter 1 Product Overview .....................................................................................................................7
Product Definition ............................................................................................................................................8
General Features: ....................................................................................................................................................... 8
Block Diagram .................................................................................................................................................9
Electrical and Environmental Specifications...................................................................................................10
Operating Characteristics.......................................................................................................................................... 10
Absolute Maximum Ratings ...................................................................................................................................... 10
MTBF......................................................................................................................................................................... 10
Chapter 2 Jumper Description................................................................................................................11
Jumper Layout...............................................................................................................................................11
Chapter 3 Connector Description...........................................................................................................13
Connector Layout ..........................................................................................................................................13
How to connect the ACS-5151 to other PC/104 & PC/104-Plus devices........................................................14
The ISA Bus: J1 and J2............................................................................................................................................. 14
The stack assembly................................................................................................................................................... 16
Power input connector: +8 to +40V................................................................................................................17
Output connector: +12V.................................................................................................................................17
+3.3V Output connector.................................................................................................................................18
+5V Output connector....................................................................................................................................19
External power connector..............................................................................................................................19
Chapter 4 Power Supply Description .....................................................................................................21
Input protection and filtering...........................................................................................................................21
Reverse voltage protection ....................................................................................................................................... 21
Over voltage protection............................................................................................................................................. 21
Input filtering.............................................................................................................................................................. 21
+5V DC/DC step down converter module......................................................................................................22
Current Limit.............................................................................................................................................................. 22
Remote On/Off control .............................................................................................................................................. 22
+12V step up converter..................................................................................................................................22
Status LED indicators ....................................................................................................................................23

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Appendix ......................................................................................................................................................25
A.1. Mechanical Dimensions ......................................................................................................................25
A.2. Manual Revision History......................................................................................................................26
Eurotech Group Worldwide presence........................................................................................................27

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Chapter 1 Product Overview
In the following paragraphs, you will find a brief description of the ACS-5151 characteristics.
The ACS-5151 vehicle power supply is designed to meet the system design requirements of vehicle,
machine, industrial, and mobile installations. It offers resistance to high levels of shock and vibration and has
a rugged mechanical design. All heavy components are glued to the board.
Reverse protection up to -45VDC and short-term tolerance of spikes up to 50V (1ms) make this power
supply the ideal choice for battery operated +12V or +24V systems. Dedicated high power automotive
voltage suppression circuitry will dissipate up to 6KW of transient energy (10/1000us waveform) meeting the
ISO7637-2 surge specification. The onboard input filter and protection circuitry is designed to meet the
requirements of the EC low voltage directives for CE compliance EN55022-B and EN61000 and MIL-STD-
461 for radiated and conducted emissions. Emissions are reduced by optimal layout, as well as EMI filtering
of all the board outputs including the power applied into the PC/104 computer bus.
The output voltages are supplied to the PC/104 bus as well as terminal blocks mounted on the board. The
+3.3V output can be used to power other low voltage peripherals in the system such as LCD panels, GPS
receivers or wireless communication devices. LED indicators display the status of the +5V and +12V power
outputs.
For a complete list of our products visit our website: www.eurotech.com

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Product Definition
General Features:
Architecture
•PC/104 compliant
Voltage Input:
•VIN=+8 VDC to +40 VDC
•High transient voltage margin (50V 1ms)
Voltage Output:
•+5V, +12V, +3.3VDC
Power Output:
•Up to 50 Watts Combined (+5V@10A, +3.3V@2A, +12V@2A)
Input Protection:
•Reverse over-voltage and load-dump protection
•Input protected with automotive transient voltage suppressor (6600W 10/1000us)
•Suitable for 12 or 24 V battery installations
EMI Input Filter:
•Onboard input filter designed to comply with MIL-STD-461, CE, and EN-55022 class B conducted and
radiated emissions
Power Connectors:
•PC/104 Bus
•Screw Clamp Terminal Blocks;
•HDD Terminal Block
RoHS:
•Fully RoHS (2002/95/CE) Compliant
•RoHS replacement for ACS-5150

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Block Diagram
Figure 2. Functional block diagram of the ACS-5151 vehicle class power supply
50 Watt
DC/DC
Converter
DC/DC
Converter
Linear
Regulator
Input
Protection Filter
8-40V DC
Input
+3.3VDC
Output
Filter
Filter
Filter
+12 VDC +5 VDC
+5 VDC
+12 VDC
ISA Bus

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Electrical and Environmental Specifications
Operating Characteristics
Electrical Operating Characteristics
Parameter Nominal [VDC] Specification [+/-%] Minimum [VDC] Maximum [VDC]
+3.3 1.5 3.25 3.35
+5.0 5 4.75 5.25
Voltage Output
+12.0 -4.2 /+1.6 11.5 12.2
Voltage Input +12.0 or +24.0 +8.0 +40.0*
Power output Up to 50 Watts Combined (+5V@10A, +3.3V@2A, +12V@2A)
*High transient voltage margin (50V 1ms)
Operating Temperature Range
For correct operation of the module, the ambient air temperature must remain within the following range:
Range Minimum Maximum
Standard -40 °C +85 °C
Absolute Maximum Ratings
Description Minimum Maximum
Supply Voltage 7.5 V 40.0 V
Storage Temperature Range -45 °C +85 °C
Non-Condensing Relative Humidity <95% at 40°C
Warning:
Stressing the module beyond the “Absolute Maximum Ratings” may cause permanent
damage. These are stress ratings only. Operation beyond the “Operating Conditions” is
not recommended. Extended exposure beyond the “Operating Conditions” may affect
device reliability
MTBF
Hours 997,079 Hours (Ground Benign, Controlled GB, GC)
157,971 Hours (Airborne Inhabit Fighter, AIF)
Standard MIL-HDBK-217F @ 40°C

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Chapter 2 Jumper Description
Jumper Layout
Figure 3. Jumpers and solder jumpers
Label Function Type Options Factory Default
/SHDN Shutdown Control 2pin jumper Closed: Turns off the complete power supply
Open: Power supply module fully operational Open
Table 1. Jumper Functions

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Chapter 3 Connector Description
Connector Layout
Figure 4. Connector layout
Connector Function
J1 & J2 ISA BUS (PC/XT)
INPUT + 8 to +40V DC input
+3.3V +3.3V screw terminal plug
+5V +5V screw terminal plug
+12V +12V screw terminal plug
EXT +5V and +12V output
Table 2. Connector functions
J1 & J2
+5V
+3.3V
+12V
INPUT
EXT
LED1 LED2

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How to connect the ACS-5151 to other PC/104 & PC/104-
Plus devices
The ISA Bus: J1 and J2
Connectors J1 and J2 carry the signals for the ISA Bus.
These signals match the definitions of the IEEE P996 standard.
J2
J1
Figure 5. ISA BUS layout
According to the PC/104 specifications, these connectors include KEY pins; these are filled holes in the
upper side and missing pins in the lower side of the bus. This is done to avoid the wrong insertion in/of
another module.
Pin # Use Signal Pin # Use Signal
1 ISA Bus IOCHK# 33 ISA Bus A14
2 ISA Bus Ground 34 ISA Bus DACK1#
3 ISA Bus D7 35 ISA Bus A13
4 ISA Bus RSTDRV 36 ISA Bus DRQ1
5 ISA Bus D6 37 ISA Bus A12
6 ISA Bus +5 Volts 38 ISA Bus REFRESH#
7 ISA Bus D5 39 ISA Bus A11
8 ISA Bus IRQ 9 40 ISA Bus ISACLK
9 ISA Bus D4 41 ISA Bus A10
10 ISA Bus -5 Volts 42 ISA Bus IRQ 7
11 ISA Bus D3 43 ISA Bus A9
12 ISA Bus DRQ2 44 ISA Bus IRQ 6
13 ISA Bus D2 45 ISA Bus A8
14 ISA Bus -12 Volts 46 ISA Bus IRQ 5
15 ISA Bus D1 47 ISA Bus A7
16 ISA Bus ZEROWS# 48 ISA Bus IRQ 4
17 ISA Bus D0 49 ISA Bus A6
18 ISA Bus +12 Volts 50 ISA Bus IRQ 3
19 ISA Bus IOCHRDY 51 ISA Bus A5
20 Not Connected Key 52 ISA Bus DACK2#
21 ISA Bus AEN 53 ISA Bus A4
22 ISA Bus SMEMW# 54 ISA Bus TC
23 ISA Bus A19 55 ISA Bus A3
24 ISA Bus SMEMR# 56 ISA Bus BALE

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Pin # Use Signal Pin # Use Signal
25 ISA Bus A18 57 ISA Bus A2
26 ISA Bus IOW# 58 ISA Bus +5 Volts –1
27 ISA Bus A17 59 ISA Bus A1
28 ISA Bus IOR# 60 ISA Bus OSC
29 ISA Bus A16 61 ISA Bus A0
30 ISA Bus DACK3# 62 ISA Bus Ground 1
31 ISA Bus A15 63 ISA Bus Ground 3
32 ISA Bus DRQ3 64 ISA Bus Ground 2
Table 3. J1 pinout
Pin # Use Signal Pin # Use Signal
1 ISA Bus Ground 0 21 ISA Bus MEMW#
2 ISA Bus Ground 1 22 ISA Bus DACK5#
3 ISA Bus SBHE# 23 ISA Bus SD8
4 ISA Bus ISA_MEMCS16# 24 ISA Bus DRQ5
5 ISA Bus LA23 25 ISA Bus SD9
6 ISA Bus IOC16# 26 ISA Bus DACK6#
7 ISA Bus LA22 27 ISA Bus SD10
8 ISA Bus IRQ10 28 ISA Bus DRQ6
9 ISA Bus LA21 29 ISA Bus SD11
10 ISA Bus IRQ11 30 ISA Bus DACK7#
11 ISA Bus LA20 31 ISA Bus SD12
12 ISA Bus IRQ12 32 ISA Bus DRQ7
13 ISA Bus LS19 33 ISA Bus SD13
14 ISA Bus IRQ15 34 ISA Bus +5 Volts
15 ISA Bus LA18 35 ISA Bus SD14
16 ISA Bus IRQ14 36 ISA Bus MASTER#
17 ISA Bus LA17 37 ISA Bus SD15
18 ISA Bus DACK0# 38 ISA Bus Ground 2
19 ISA Bus MEMR# 39 ISA Bus Not Connected
20 ISA Bus DRQ0 40 ISA Bus Ground 3
Table 4. J2 pinout
Note:
For further information regarding the ISA and PCI bus, please visit the Eurotech
website (http://www.eurotech.com/),referring to the section titled “Industry
Standards.”

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The stack assembly
The ISA and PCI bus connectors of the module are designed to allow it to be connected with other PC/104
and/or PC/104-Plus devices, we recommend users to follow this procedure to ensure that stacked modules
are not damaged.
Warning:
Appropriate ESD (Electro Static Discharge) precautions should be used for the following
procedure.
1. Turn off the power to the PC/104 (or PC/104-Plus) system or stack.
2. Select and install standoffs as required to correctly position the module on the PC/104 stack.
3. Remove the module from its anti-static bag.
4. Check that keying pins in the bus connector are correctly positioned.
5. Check the stacking order; make sure an XT bus card will not be placed between two AT bus cards or
it will interrupt the AT bus signals.
6. Hold the module by its edges and orient it so that the bus connector pins line up with the matching
connector on the stack.
7. Press the module evenly onto the PC/104 stack.
Figure 6 shows a typical module stack with two PC/104 modules, one PC/104 16-BIT module, and one
PC/104 8-BIT module.
The maximum number of modules is four in addition to the Host Board.
0.6 in. (15mm) Spacers (4 plcs.)
Stackthrough
8-bit module 0.435 in. (11 mm)
0.6 in. (15 mm)
Stackthrough
16-bit module
Stackthrough
PC/104Plus module
Non-Stackthrough
PC/104Plus module
0.6 in. (15mm) Spacers (4 plcs.)
0.6 in. (15mm) Spacers (4 plcs.) 0.100 in. (2.54 mm) 0.062 in. (1.57 mm)
Figure 6. The Module Stack
Warning:
Do not force the module onto the stack! Wiggling the module or applying too much
pressure may damage it. If the module does not readily press into place, remove it,
check for bent pins or out-of-place keying pins, and try again.

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Power input connector: +8 to +40V
Figure 7. Input power connector
Use:
Connecting raw input power to the ACS-5151 power supply and system.
Description:
The ACS-5151 accepts a wide input voltage range from +8V to +40V DC. This makes it the ideal power
supply for automotive installations requiring compliance with EN50155. The input is reverse voltage
protected up to 45V. Transient protection diodes as well as a varistor are used to protect the input of the
power supply. Low radiated and conducted emissions are achieved by a purpose built input filter. The input
will withstand over voltages up to 50V for 1ms. As the input power of the module can reach 65 Watts, it is
important to ensure that suitable input cables are used.
Output connector: +12V
Figure 8. +12V output connector
Use:
+12 Volt Output
Description:
A +12 Volts / 24 Watt output switching DC/DC converter is used to create +12 Volts from +5 Volts. This
converter feeds power into the PC/104 bus pins and is available for peripheral device connection on the
locking screw terminal block as shown Figure 8. The +12 Volts is filtered to reduce radiated noise on the
output. The maximum output current of the +12 Volts output is 2.5 Amperes. The output is over-current
protected and will withstand a permanent short circuit condition.
INPUT
+12V

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+3.3V Output connector
Figure 9. +3.3V output connector
Use:
+3.3Volt Output
Description:
A +3.3V linear regulator is cascaded on the +5V regulator output. This output is only available on this
connector. +3.3V is not supplied to the PC/104 bus. The maximum output available current is 2A. This output
can be used for various low power peripheral devices in a system such as GPS receivers, TFT displays etc.
+3.3V

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+5V Output connector
Figure 10. +5V output connector
Use:
+5.0Volt Output
Description:
A 5 Volt / 50 Watt switching DC/DC converter is used to power your complete 5 Volt system. This converter
feeds power into the PC/104 bus pins and is available for peripheral device connection on the locking screw
terminal block as shown in Figure 10. The +5 Volt output is filtered to reduce radiated noise. The maximum
output current of the +5 Volt converter is 10 Amperes. The power consumption of the additional +3.3 Volt
and +12 Volt converters must be taken into consideration while performing power calculations, as these
cascaded converters draw power from the main +5 Volt output.
External power connector
Figure 11. External power connector
Use:
+5V and +12V power outputs
Description:
The external power output connector has two ground pins in the middle and additionally +5V and +12V. Use
this screw terminal block to connect to your standard peripheral devices such as HD and CD-ROM drives.
Warning:
Power terminals are connected in parallel with the equivalent outputs described above.
+5
EXT