BQ1101-7 POWER ONE, BQ1101-7 Datasheet - Page 24

• Manufacturer Part Number: BQ1101-7
• Description: DC/DC Power Supply Single-OUT 3.3V 25A 82W 15-Pin
• Manufacturer: POWER ONE
• Type: Step Downr

Specifications of BQ1101-7

• Output Current: 25 A
• Output Voltage: 3.3 V
• Input Voltage: 14.4 to 36 V
• Number Of Outputs: 1
• Output Power: 82 W

BCD20011-G Rev AD, 22-Dec-09
Table 19: Isolation
• Connecting the input to a circuit, which is subject to a
CB Scheme is available.
The converters are subject to manufacturing surveillance in
accordance with the above mentioned standards and with ISO
9001:2000.
Railway Applications
The Q Series converters have been designed by observing the
railway standards EN 50155, EN 50121-3-2, and EN 50121-4.
All boards are coated with a protective lacquer.
The converters comply with class S1 of the fire protection
standard E DIN 5510-2 (Oct. 2007).
Isolation and Protective Earth
The test of the resistance of the protective earthing circuit
(max. 0.1 Ω) and the electric strength test (table 19) are
performed in the factory as routine tests in accordance with EN
50116 and IEC/EN 60950-1, and should not be repeated in the
field. Power-One will not honor any warranty claims resulting
from electric strength field tests.
Safety of Operator-Accessible Output Circuits
If the output circuit of a DC-DC converter is operator-
accessible, it shall be an SELV circuit according to IEC 60950.
Table 21 shows some possible installation configurations,
compliance with which causes the output circuit of the DC-DC
~
~
Fig. 27
Schematic safety concept
Use fuse, suppressor diode and earth connections as per
table: Safety concept leading to an SELV output circuit. Use
fuse(s), if required by the application. See Installation
Instructions.
Mains
Characteristic
Electric
strength
tests
Insulation resistance
Minimum creepage distances
* Models with version V104 or higher. Older converters have only been tested with 0.3 kVDC.
1
2
3
maximum transient rating of 1500 V.
In accordance with EN 50116 and IEC/EN 60950, subassemblies connecting input to output are pre-tested with 4.2 kVDC.
Tested at 500 VDC.
2.8 mm between input and output.
AC-DC
front
end
Factory test ≥1 s
AC test voltage equivalent
to factory test
connection
Earth
+
Battery
®
Fuse
Fuse
connection
Earth
DC-DC
verter
con-
connection
Earth
case + output(s)
Suppressor
diode
Input to
>300
1.5
1.4
2.1
1
3
1
2
SELV
Page 24 of 26
10026
+
–
Output(s) to
converter to be SELV up to a configured output voltage (sum of
nominal voltages, if in series configuration) of 35 V.
However, it is the sole responsibility of the installer to ensure
the compliance with the relevant and applicable safety
regulations.
Description of Options
Option P: Output Voltage Adjustment
Option P provides a built-in multi-turn potentiometer, which
allows an output voltage adjustment of ±10% of V
potentiometer is accessible through a hole in the front cover.
With double-output models, both outputs are affected by the
potentiometer. If different converters are parallel-connected,
their individual output voltage should be set within a tolerance
of ±1%.
If V
reduced accordingly, so that the maximum specified output
power is not exceeded.
Option -7: Temperature Range
Option -7 designates converters with an operational ambient
temperature range of – 25 to 71 °C. Not for new designs.
Option B, B1: Additional Heat Sink
Size: 12.5 mm (opt. B) or 20 mm (opt. B1) high
Table 20: Thermal resistance case to ambient (approx.
values)
Option G:
RoHS compliant for all six substances.
Case
Standard (160 mm long)
Case 220 mm long
Option B
Option B1
1
>300
case
o
2.1
1.5
1.4
Customer-specific models. These are as well available with an
additional heat sink.
is set higher than V
2
66 – 132 Watt DC-DC Converter
to output
Output
0.35*
>100
1
0.5*
Thermal resistance
o nom
case + input
1.45 K/W
1.6 K/W
1.4 K/W
1.4 K/W
Out-OK to
Q Series Data Sheet
, the output currents should be
>300
2.1
1.5
1
1
2
to output(s)
www.power-one.com
Out-OK
Thickness of case
>300
2.1
1.5
< 20 mm
< 20 mm
< 33 mm
< 40 mm
1
1
2
o nom
kVDC
kVAC
. The
Unit
MΩ
mm