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
Features:
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Extended Temperature with NO DE-RATING!
The BPWX Power Supply Module is the ideal low EMI soluꢀon
for worldwide deployment of control applicaꢀons in wireless/
M2M, lighꢀng, sensing, smart building and power distribuꢀon,
especially where long range wireless operaꢁon or extended tem-
perature is required.
(-40 to +85°C )
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Universal Input (90-308 VAC, 50/60Hz)
Small Size—2.45 in3 [40.1 cm3]
Low no-load input power <30mW
Constant power mode (not current limit)
3000 VAC Isolaꢀon
EN 55022, Class B; FCC Part 15, Class B
Meets UL/CSA and EN Product Safety (ITE)
A patented design incorporaꢁng a custom integrated circuit into a
small package (2.45 in3 [40.1 cm3]) the BIAS Module provides an
immediate “drop-in” soluꢁon, requiring no addiꢁonal external
components.
Bias Power AC/DC power supplies are available with two
different types of outputs to fit your applicaꢀons…
Operating Specifications
(@120VAC / 60 Hz / 25ºC unless otherwise specified)
The characterisꢁcs of the main (Vo) and auxiliary (Vr) outputs
are different and each has applicaꢁon-speciꢀc beneꢀts which
can provide high value to the system designer:
Electrical
Input Voltage Range
90 - 308 VAC (50/60Hz)
Input Surge Withstand
345V, < 30 sec
Vo is a voltage-regulated output which has a constant power
mode instead of a convenꢁonal current limit. This output is
best suited as a source for isolated DC uꢁlity power, which may
be used directly or post-regulated with either a linear regulator
or a DC/DC converter. Vo is self protecꢀng, cannot be over-
loaded and can be shorted indefinitely. So unlike design-your-
own, or parꢁally complete modules where signiꢀcant design
margin is required to stay far away from current limit, there is
no need to oversize a Bias Power supply. The graceful transi-
ꢁon from voltage regulaꢁon to constant power along with the
wide range of product raꢁngs allows the designer to select a
supply ꢁghtly matched to the design load.
4 W min. (60Hz)
3.33 W min. (50Hz)
Output Power (Pmax)
Efficiency
≥ 70%
Output Vo (Peak)
8, 14 or 24 VDC nom. +/- 5%
+/- 1% Po < Pmax
+/- 2% Po < Pmax
Line / Load Regulaꢁon Vo (Peak)
Temperature Regulaꢁon Vo (Peak)
Ripple Vo (@120 Hz)
(@ 100 kHz)
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
Output Vr, 3.3 volt (+/- 5%)
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, ꢁghtly-regulated supply.
In addiꢁon, Vr is supplied internally by Vo. This means that any
capacitance added to Vo can increase the hold-up ꢁme of Vr as
well.
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
Output Vr, 5.0 volt (+/- 5%)
No-load Consumpꢁon
30 mW typical @ Vin=120 VAC
3000 VAC (meets UL / CSA & EN Product Safe-
ty)
Isolaꢁon
*Note: maximum currents speciꢀed for constant voltage range
only. See V-I curve on page 2 for Vo in constant power range.
Earth Leakage @ 120 VAC
Short Circuit Protecꢁon
< 10 uA
Conꢁnuous, Pin ≤ 0.7 w @ Vin = 120 VAC
> 500 Khr MTBF
Reliability @ 25° C, MIL HDBK-217F
Thermal
Operaꢁng Temperature
-40 to +85o C
Operaꢁng Relaꢁve Humidity
0 – 95%, non-condensing
-40 to +105º C
Storage Temperature
Mechanical
1.91 x 1.31 x 0.98 inches [48.5 x 33.3 x 24.9
mm]
Package Size (L x W x H)
Safety
Safety Compliance
UL / EN 60950-1 2nd Ed. (CB Report Available)
EMI Emissions
EN 55022, Class B, FCC Part 15, Class B
BPWX 4 Series Data Sheet, Page 1 of 2
Revised 11/02/2013
www.biaspower.com
Speciꢀcaꢁons subject to change