BP 2101-7RG POWER ONE, BP 2101-7RG Datasheet - Page 8

• Manufacturer Part Number: BP 2101-7RG
• Manufacturer: POWER ONE
• Type: Step Downr

Specifications of BP 2101-7RG

• Input Voltage: 24V
• Screening Level: Commercial
• Operating Temperature Min Deg. C: -25C
• Operating Temperature Max Deg. C: 71C
• Product Length (mm): 164mm
• Product Depth (mm): 111mm
• Product Height (mm): 19.8mm
• Mounting Style: Din-Rail
• Pin Count: 15
• Number Of Outputs: 2
• Lead Free Status / RoHS Status: Compliant

Input Fuse and Reverse Polarity
A fuse mounted inside the converter protects against further
damage in case of a failure. The fuse is not user-accessible.
Reverse polarity at the input will cause the fuse to blow.
Table 3: Fuse specification
Input Transient Protection
A VDR (Voltage Dependent Resistor), the input fuse, and a
symmetrical input filter form an effective protection against
input transients, which typically occur in most installations,
but especially in battery-driven mobile applications.
Nominal battery voltages in use are: 24, 36, 48, 60, 72, 96,
and 110 V. In most cases each nominal value is specified in a
tolerance of –30% to +25%, with short excursions to ±40%
or even more.
In some applications, surges according to RIA 12 are
specified in addition to those defined in IEC 60571-1 or EN
50155. The power supply must not switch off during these
surges, and since their energy can practically not be
absorbed, an extremely wide input range is required. The P
Series input range has been designed and tested to meet
these requirements; see Electromagnetic Immunity.
Input Under- / Overvoltage Lockout
If the input voltage is below approx. 0.9 V
approx. 1.1 V
disables the output(s). However, short extentions specified
in EN 50155 will be withstood without shutdown.
Inrush Current
The inherent inrush current value is lower than specified in
the standard ETS 300132-2 (ver. 3.1). The units operate with
relatively small input capacitance resulting in low inrush
current of short duration. As a result in a power-bus system
the units can be hot plugged-in or disconnected causing
negligible disturbance at the input side.
Input Stability with Long Supply Lines
If a P Series converter is connected to the power source with
long input lines exhibiting a considerable inductance, an
additional external capacitor connected in parallel to the
input improves the stability and avoids oscillations.
Actually, a P Series converter with nominal load acts like a
negative resistor, as the input current rises when the input
voltage decreases. It tends to oscillate with a resonant
frequency determined by the line inductance L
input capacitance C
BCD20010-G Rev AC, 26-Aug-09
Model
BP
GP
CP
DP
EP
Fuse type
very fast blow
very fast blow
very fast blow
very fast blow
very fast blow
i max
, an internally generated inhibit signal
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+ C
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Rating
2 × 10 A, 125 V
2 × 10 A, 125 V
10 A, 125 V
7 A, 125 V
5 A, 250 V
and damped by the resistors R
Reference
Littelfuse Pico 251
Littelfuse Pico 251
Littelfuse Pico 251
Littelfuse Pico 251
Littelfuse Pico 263
i min
or exceeds
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and the
Page 8 of 25
i
+
R
simple calculation. One basic condition is given by the
formula:
R
input lines. If this condition is not fulfilled, the converter
cannot reach stable operating conditions. Worst case
conditions are a low input voltage V
P
Low inductance L
connected input capacitor C
values for C
operation up to an input inductance of 2 mH.
Fig. 8
Input configuration
Table 4: Recommended values for C
Model
BP
GP
CP
DP
EP
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+
.
. The whole system is not linear at all and eludes a
is the series resistor of the source voltage including
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90 – 194 Watt DC-DC Converters
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are given in table 4, which should allow stable
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Capacitance
R
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1000 μF
680 μF
470 μF
220 μF
100 μF
<< —
of the input lines and a parallel
Vi+
Vi–
V
—
P
in
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— • η
²
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P Series Data Sheet
are helpful. Recommended
Converter
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and a high output power
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www.power-one.com
Voltage
100 V
125 V
200 V
JM001
40 V
63 V
Vo+
Vo–