Power Supply / Peripherals
Power Supply
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IDDV-6304140A
140 W DC/DC Smart ATX Converter Module for Vehicle
140W
Dedicated ATX power for car PC and
battery powered applications
Designed to provide power and to control
power on/off switch of a motherboard
based on the ignition status.
Dimensions
(Unit: mm)
Features
1. Wide input range: 6-30 VDC
2. Smart system on/off control
3. Six selectable power on/off timing modes
4. Load down protection
5. Over voltage protection
6. Short circuit protection
7. Over current protection
8. Battery voltage monitor
9. Amplifier on-delay control
10. RoHS compliant
11. Compact size
12. Infrared remote off (optional)
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Pin Assignments
Input Power Connector
CN15
CN16
CN17
Batt (+)
ACC ON
Batt (-)
Output Power Connector
J1
Standard 20-pin ATX
Specifications
● Output (max.): 5 V@10 A, 3.3 V@10 A, 12 V@4 A, -12 V@0.15 A
& 5 VSB@1.5 A
● Max. total output: 140 W
● Input: 6 VDC to 30 VDC
Min. input operating voltage: 5.7 V
Max. input operating voltage: 30 V
● Deep-discharge shut down voltage: 10.6 V
● Startup voltage: 8 V
● Efficiency: up to 90%
● Dimensions: 45 mm x 160 mm
● Weight: NW: 118 g
● Operating temperature: -20ºC ~ 85ºC
● Storage temperature: -25ºC ~ 90ºC
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Wire Harness Selection Guide
SBC Main Power (J1)
PN: CB-ATX20PIO-RS
20-pin ATX to 20-pin ATX / SATA / HDD
cables
Input Power Connector (CN15, 16, 17)
PN: CB-BATACC-RS
Wire to battery and ACC on
Packing Information
1 x IDDV-6304140A
1 x QIG
1 x Wire cable for PWR/SW and MB/SW (P/N: 32100-153400-RS)
1 x Wire cable for LED /AMP (P/N: 32100-153500-RS)
Pout
100%
85%
70%
Ordering Information
Part No.
IDDV-6304140A-R10
CB-ATX20PIO-RS
Description
140 W DC/DC 6-30 VDC input, vehicle converter module
30 cm, 20-pin ATX to 20-pin ATX / SATA (20 cm) / HDD cables
30 cm, wire to battery and ACC on
55ºC 70ºC
85ºC
Temp. ºC
CB-BATACC-RS
IDDV-6304140A-2013-V10
Power Supply / Peripherals
Power Supply
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PCs Still Consume Power While Off
A typical PC consumes 500mW of power when the system is powered off. The current computer market trend demands more
and more standby power.
Electronics Device
A
B
C
5mW
1.5mW
200 300 400
Power Consumption
500
mW
500mW
333
Times
Standard ATX Power Supply
will Drain the Car Battery!
Dead Battery
1.5
A
B
C
PC Typical Power Consumption while off
Car Radio/Stereo Typical Power Consumption while off
Car PC with IDDV-6304140A
How the IDDV-6304140A work to keep your battery alive.
Step1.
Ignition=Off
The IDDV-6304140A cuts off all the power rails including 5VSB,
internal µP power consumption keep less than 1.5mW.
The IDDV-6304140A waits for 10 seconds then turns on the 5VSB
rail.
Auto On
(jumper selectable) - After 1 sec. The µP sends an “ON”
signal to the motherboard via the two wires connected to the
motherboard’s on/off pins.
Manual On
(jumper selectable) - Nothing happens until the power
button on the IDDV-6304140A is pushed.
Step3.
Ignition=On
During driving: acts like a regular PC, turns on/off anytime by pushing
the on/off button.
Step2.
Ignition=On (ACC On)
Step4.
Ignition=Soft Off.
The IDDV-6304140A waits for “10~40” seconds (jumper selectable)
and then µP sends a signal to turn off the motherboard. The computer
should turn off gracefully during the shutdown procedure. During
this period, normal power will be available for the system to perform
normal shutdown.
5VSB is still available for 0 seconds, 45 seconds, 1 hour, or never
(jumper selectable) before being cut off by µP. At this stage, the
system will keep minimum power consumption so that the system
won't drain the car battery.
Step5.
Ignition=Hard Off.
■
12V Battery Vehicle Load Dump Transients
'Load dump' transients occur when a battery is disconnected from the charging system during charge. The alternator, with a finite response time of
40ms to 400ms, generates power with nowhere to go. This damages electronic devices.
V
100
Voltage
Peak up to 130V
130 V
100
200
300
400
Duration
500
m Second
Load dump transients typically reach peak
voltages of 130 volts in 12 volt systems with
relatively slow rise times.
13.5
12V System
Load Dump Transients
EMI sprays and RFI sparking is everywhere. Electrical transients run zapping embedded electronics. Electronics located in a vehicle must withstand
600V transients and “load dump” situations.
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IDDV-6304140A Wiring Diagram
MB On/Off Timing Mode Selector
Stereo Amplifier Enable
IR Sensor
LED
MB On/Off Button
IDDV-6304140A
-
ON
ACC
KINO Series
+
20-pin ATX
5Vsb
Internal µP Control
5 Vsb On/Off
Ignition
System On/Off Switch
Mini-ITX Board
IDDV-6304140A-2013-V10
微控制器 MCU
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