BIAS Power Supply Module
BPWX 4 Series Data Sheet
Single (Vo) or Dual (Vo & Vr) output
BPWX 4-08-00, -08-33, -08-50
BPWX 4-14-00, -14-33, -14-50
BPWX 4-24-00
The BPWX Power Supply Module is the ideal low EMI solution
for worldwide deployment of control applications in wireless/
M2M, lighting, sensing, smart building and power distribution,
especially where long range wireless operation or extended tem-
perature is required.
A patented design incorporating a custom integrated circuit into a
small package (2.45 in
3
[40.1 cm
3
]) the BIAS Module provides an
immediate “drop-in” solution, requiring no additional external
components.
Features:
•
•
•
•
•
•
•
•
Extended Temperature with
NO DE-RATING!
(-40 to +85°C
)
Universal Input (90-308 VAC, 50/60Hz)
Small Size—2.45 in
3
[40.1 cm
3
]
Low no-load input power <30mW
Constant power mode (not current limit)
3000 VAC Isolation
EN 55022, Class B; FCC Part 15, Class B
Meets UL/CSA and EN Product Safety (ITE)
Operating Specifications
(@120VAC / 60 Hz / 25ºC unless otherwise specified)
Bias Power AC/DC power supplies are available with two
different types of outputs to fit your applications…
The characteristics of the main (Vo) and auxiliary (Vr) outputs
are different and each has application-specific benefits which
can provide high value to the system designer:
Vo is a voltage-regulated output which has a constant power
mode instead of a conventional current limit. This output is
best suited as a source for isolated DC utility power, which may
be used directly or post-regulated with either a linear regulator
or a DC/DC converter.
Vo is self protecting, cannot be over-
loaded and can be shorted indefinitely.
So unlike design-your-
own, or partially complete modules where significant design
margin is required to stay far away from current limit,
there is
no need to oversize a Bias Power supply.
The graceful transi-
tion from voltage regulation to constant power along with the
wide range of product ratings allows the designer to select a
supply tightly matched to the design load.
Vr is also a voltage-regulated output and is thermally protected
from overload. It has very low output ripple capable of driving
elements which require a low-noise, tightly-regulated supply.
In addition, Vr is supplied internally by Vo. This means that any
capacitance added to Vo can increase the hold-up time of Vr as
well.
*Note: maximum currents specified for constant voltage range
only. See V-I curve on page 2 for Vo in constant power range.
Electrical
Input Voltage Range
Input Surge Withstand
Output Power (Pmax)
Efficiency
Output Vo (Peak)
Line / Load Regulation Vo (Peak)
Temperature Regulation Vo (Peak)
Ripple Vo (@120 Hz)
(@ 100 kHz)
Output Vr, 3.3 volt (+/- 5%)
90 - 308 VAC (50/60Hz)
345V, < 30 sec
4 W min. (60Hz)
3.33 W min. (50Hz)
≥ 70%
8, 14 or 24 VDC nom. +/- 5%
+/- 1% Po < Pmax
+/- 2% Po < Pmax
1.75 V p:p
0.25 V p:p
For Vo = 8V, Ir out 160mA max, Io+Ir ≤ 500mA
For Vo = 14V, Ir out 70mA max, Io+Ir ≤ 285mA
For Vo = 24V, Vr not available
For Vo = 8V, Ir out 250mA max, Io+Ir ≤ 500mA
For Vo = 14V, Ir out 83mA max, Io+Ir ≤ 285mA
For Vo = 24V, Vr not available
30 mW typical @ Vin=120 VAC
3000 VAC (meets UL / CSA & EN Product Safe-
ty)
< 10 uA
Continuous, Pin ≤ 0.7 w @ Vin = 120 VAC
> 500 Khr MTBF
-40 to +85
o
C
0 – 95%, non-condensing
-40 to +105º C
1.91 x 1.31 x 0.98 inches [48.5 x 33.3 x 24.9
mm]
UL / EN 60950-1 2
nd
Ed. (CB Report Available)
EN 55022, Class B, FCC Part 15, Class B
Output Vr, 5.0 volt (+/- 5%)
No-load Consumption
Isolation
Earth Leakage @ 120 VAC
Short Circuit Protection
Reliability @ 25° C, MIL HDBK-217F
Thermal
Operating Temperature
Operating Relative Humidity
Storage Temperature
Mechanical
Package Size (L x W x H)
Safety
Safety Compliance
EMI Emissions
www.biaspower.com
BPWX 4 Series Data Sheet, Page
1 of 2
Revised 11/02/2013
Specifications subject to change
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