|
These are regulated switching power
converters (switchmode), designed to allow the use of 5 volt equipment in 12V or 24V vehicles.
These 5V output converters have been designed to be very rugged electrically and can be
operated continuously at 75°C (65°C for the 5A version).
These are also known
as 5 volt voltage reducers, and voltage regulators.
Custom output voltages are available
from 3.3VDC to the input voltage minus 1.5 volts (10.5VDC for a 12 volt input, 22.5 for a 24
volt input)
Prices:
PST-DCZ0503 5V 3A
|
|
| Quantity |
Price |
| 1-49 |
$47.60 |
| 50-99 |
$39.70 |
| 100-199 |
$35.08 |
| 200+ |
$33.00 |
PST-DCZ0503-W weather resistant 5V 3A
|
|
| Quantity |
Price |
| 1-49 |
$61.00 |
| 50-99 |
$50.80 |
| 100-199 |
$44.95 |
| 200+ |
$42.25 |
|
PST-DCZ0505 5V 5A
|
|
| Quantity |
Price |
| 1-49 |
$57.60 |
| 50-99 |
$47.00 |
| 100-199 |
$40.00 |
| 200+ |
$38.20 |
PST-DCZ0505-W weather resistant 5V 5A
|
|
| Quantity |
Price |
| 1-49 |
$73.80 |
| 50-99 |
$61.50 |
| 100-199 |
$54.40 |
| 200+ |
$51.10 |
|
|
Electrical Specifications |
| |
3
Amp version |
5
Amp Version |
|
Output Voltage |
5.0 VDC ± 0.1
VDC |
5.0 VDC ± 0.1
VDC |
|
Readily Available Custom Output Voltages. Others
are available on request between 1.5VDC and 10VDC |
3VDC
, 3.3VDC,
6VDC
7VDC, 7.5VDC, 8VDC to
9VDC
|
3VDC
, 3.3VDC,
6VDC
7VDC, 7.5VDC, 8VDC to
9VDC
|
|
Maximum steady state input voltage range |
8 VDC to 41 VDC ** |
8 VDC to 41 VDC ** |
|
Nominal continuous output current when input voltage is between 8VDC and
20VDC |
3.0A |
5.0A |
|
Line regulation |
± 0.5% |
± 0.5% |
|
Load regulation |
± 1.0% |
± 1.0% |
|
Minimum input voltage for load regulation of 10 %, see Note 1 |
7 VDC (1 minute duration) |
7 VDC (20% sag) (1 minute duration) |
|
Maximum output ripple |
10mV p-p |
25mV p-p |
|
Maximum switching noise level |
90mV p-p |
90mV p-p |
|
Maximum operating temperature range |
-40°C to 75°C (-40°F to 167°F) |
-40°C to 65°C (-40°F to 149°F) |
|
Maximum storage temperature range |
-40°C to 90°C (- 40°F to 194°F) |
-40°C to 90°C (- 40°F to 194°F) |
|
Minimum efficiency, see Figure 1 |
78% 24 VDC input, 0.15A load |
77% 24 VDC input, 1A load |
|
Maximum efficiency, see Figure 1 |
89% 12 VDC input, 1.0A load |
88% 12 VDC input, 1.0A load |
|
Isolation |
Common ground, the negative input is tied to the negative output. The
frame is isolated. |
**Note: the efficiency drops when the input voltage is above 28 volts, derating either
the maximum abmient temperature or output current is appropriate when operating at the higher
voltages
|
Protection |
|
Overload protection |
If there is a short circuit connection or other overload connection is
sensed, the unit will automatically limit the output current and, depending on severity, will
go into a hiccup mode. See Note 2. |
|
Over temperature protection |
If an extreme over temperature condition occurs the unit will shut down
until the temperature is reduced. See Note 3. |
|
Reverse polarity protection |
If an in-line 4A fast acting fuse (5A for the 5A model)
is connected as shown in Figure 2, then the unit will be protected from reverse polarity
connection. If the fuse is used and there is a reverse polarity connection, the fuse will
blow and protect the unit from damage. See Note 4. |
|
Physical Specifications for both models |
|
Weight |
108 grams or about 3.8 ounces |
|
Dimensions |
|
|
120mm (4.73 inches) |
|
55mm (2.17 inches) |
|
33mm (1.30 inches) |
|
|
Connections |
| |
|
|
|
Input connector |
2 position screw terminal block will accept 14awg to 24 awg wire |
|
|
Output connector |
2 position screw terminal block will accept 14awg to 24 awg wire |
|
| Input and output connectors for
weather resistant versions |
18AWG Red and Black wires, 6 inches (15 cm) long |
|
| |
|
|
Note 1: Extended operation at voltages less than 8.0 VDC is not recommended
although the unit will work at voltages lower than this with reduced load regulation. With
voltages lower than 7.0 VDC, output voltage will drop out until the voltage is
increased.
Note 2: If an overload is sensed, the unit will automatically limit the
output current and reduce the output voltage. If the output voltage is excessively reduced to
limit current, the unit will go into a hiccup mode and wait until the overload is removed to
restore power. This dual-mode overload protection system allows the unit to be protected from
continuous short circuit connection and other overload conditions.
Note 3: Extended
operation at temperatures above 75C can damage the unit and will void the warranty.
Note
4: If the in-line 4A fast-acting fuse is not connected as shown in Figure 2, a reverse polarity
connection can damage the unit and will void the warranty.
Typical efficiency curve for
the 5VDC 3Amp model
Efficiency curves for the 5VDC 5Amp DC-DC converter
 
Advantages:
 Inexpensive Switchmode
DC/DC Converter.
High
efficiency.
Excellent line and
load regulation.
Wide input
voltage range. |
