BIAS 1/2 Waꢀ Power Supply
BPWX 0.5 Series Data Sheet
Single (Vo) or Dual (Vo & Vr) output
BPWX 0.5-08-00, -08-33, -08-50
BPWX 0.5-14-00, -14-33, -14-50
Actual Size
Features:
The BPWX is a revoluꢁonary, micro-sized, drop-in switching power supply
module. It contains patented technology with unique features that
provide soluꢁons for a wide range of applicaꢁons, including low power
wireless and many other intelligent control devices. The patented SMPS
topology is totally different from any other:
•
Extended Temperature with NO DE-RATING!
(-40 to +85°C )
•
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Universal Input (90-308 VAC, 50/60Hz)
Small Size—0.55in3 [9.0cm3]
Low no-load input power <30mW
Constant power mode (not current limit)
3000 VAC Isolaꢁon
EN 55022, Class B; FCC Part 15, Class B
Meets UL/CSA and EN Product Safety (ITE)
It's Quiet: Switching is synchronized and occurs only 10% of the ꢁme, so
there is very liꢂle EMI / EMC interference with other circuits. This means no
extra ꢀltering or shielding is needed, helping to achieve longer transmission
range with more reliable data communicaꢁon in low power wireless
applicaꢁons.
It's Powerful: No power de-raꢁng across the full wide temperature range.
No current limit design margin needed when selecꢁng a module. Charge
large super caps faster than any regular SMPS with twice the power raꢁng.
Bias Power AC/DC power supplies are available with two
different types of outputs to fit your applicaꢁons…
The characterisꢁcs of the main (Vo) and auxiliary (Vr) outputs
It's Green: High efficiency with ultra low standby power and very liꢂle self are different and each has applicaꢁon-speciꢀc beneꢀts which
can provide high value to the system designer:
generated heat make it ideal for intelligent devices such as smart-sensors,
smart-meters, smart-lighꢁng, smart-grid, M2M or IoT , and any other control
applicaꢁons.
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 protecꢁng, 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.
Operaꢁng Specificaꢁons
Electrical
Input Voltage Range
90 - 308 VAC (50/60Hz)
Input Surge Withstand
345V, < 30 sec
0.5 W (60Hz)
0.43 W (50Hz)
Output Power (Pmax)
Efficiency
70% nom.
Output Vo (Peak)
Line / Load Regulaꢁon Vo (Peak)
8 or 14 VDC nom. +/- 5%
+/- 1% Po < Pmax
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.
Temperature Regulaꢁon Vo (Peak)
Ripple Vo (@120 Hz)
(@ 100 kHz)
+/- 2% Po < Pmax
1.00 V p:p
0.25 V p:p
For Vo = 8V, Ir out 53mA max, Io+Ir ≤ 63mA*
For Vo = 14V, Ir out 23mA max, Io+Ir ≤ 36mA*
For Vo = 8V, Ir out 63mA max, Io+Ir ≤ 63mA*
For Vo = 14V, Ir out 28mA max, Io+Ir ≤ 36mA*
30 mW typical @ Vin=120 VAC
3000 VAC (meets UL / CSA & EN Product
Safety)
Output Vr, 3.3 volt (+/- 5%)
*Note: maximum currents speciꢀed for constant voltage range
only. See V-I curve on page 2 for Vo in constant power range.
Output Vr, 5.0 volt (+/- 5%)
No-load Consumpꢁon
Isolaꢁon
Earth Leakage @ 120 VAC
Short Circuit Protecꢁon
Reliability @ 25° C, MIL HDBK-217F
Thermal
< 10 uA
Conꢁnuous, Pin ≤ 0.6 w @ Vin = 120 VAC
> 500 Khr MTBF
Operaꢁng Temperature
Operaꢁng Relaꢁve Humidity
Storage Temperature
-40 to +85° C
0 – 95%, non-condensing
-40 to +105° C
Mechanical
Package Size
(L x W x H)
1.10 x 0.92 x 0.55 inches
[27.94 x 23.24 x 13.97 mm]
Safety
Safety Compliance
EMI Emissions
UL / EN 60950-1 2nd Ed. (CB Report Available)
EN 55022, Class B, FCC Part 15, Class B
BPWX 0.5 Series Data Sheet, Page 1 of 2
Revised 12/10/2013
www.biaspower.com
Speciꢀcaꢁons subject to change
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