BPWX 4 Series Data Sheet, Page 1 of 2
Revised 11/02/2013
www.biaspower.com Specicaons subject to change
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 soluon
for worldwide deployment of control applicaons in wireless/
M2M, lighng, sensing, smart building and power distribuon,
especially where long range wireless operaon or extended tem-
perature is required.
A patented design incorporang a custom integrated circuit into a
small package (2.45 in3 [40.1 cm3]) the BIAS Module provides an
immediate “drop-in” soluon, requiring no addional external
components.
Operating Specifications
(@120VAC / 60 Hz / 25ºC unless otherwise specified)
Electrical
Input Voltage Range 90 - 308 VAC (50/60Hz)
Input Surge Withstand 345V, < 30 sec
Output Power (Pmax) 4 W min. (60Hz)
3.33 W min. (50Hz)
Eciency ≥ 70%
Output Vo (Peak) 8, 14 or 24 VDC nom. +/- 5%
Line / Load Regulaon Vo (Peak) +/- 1% Po < Pmax
Temperature Regulaon Vo (Peak) +/- 2% Po < Pmax
Ripple Vo (@120 Hz)
(@ 100 kHz)
1.75 V p:p
0.25 V p:p
Output Vr, 3.3 volt (+/- 5%)
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, 5.0 volt (+/- 5%)
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
No-load Consumpon 30 mW typical @ Vin=120 VAC
Isolaon 3000 VAC (meets UL / CSA & EN Product Safe-
ty)
Earth Leakage @ 120 VAC < 10 uA
Short Circuit Protecon Connuous, Pin ≤ 0.7 w @ Vin = 120 VAC
Reliability @ 25° C, MIL HDBK-217F > 500 Khr MTBF
Thermal
Operang Temperature -40 to +85o C
Operang Relave Humidity 0 – 95%, non-condensing
Storage Temperature -40 to +105º C
Mechanical
Package Size (L x W x H) 1.91 x 1.31 x 0.98 inches [48.5 x 33.3 x 24.9
mm]
Safety
Safety Compliance UL / EN 60950-1 2nd Ed. (CB Report Available)
EMI Emissions EN 55022, Class B, FCC Part 15, Class B
Features:
• Extended Temperature with NO DE-RATING!
(-40 to +85°C )
• 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 Isolaon
• EN 55022, Class B; FCC Part 15, Class B
• Meets UL/CSA and EN Product Safety (ITE)
Bias Power AC/DC power supplies are available with two
dierent types of outputs to t your applicaons…
The characteriscs of the main (Vo) and auxiliary (Vr) outputs
are dierent and each has applicaon-specic benets which
can provide high value to the system designer:
Vo is a voltage-regulated output which has a constant power
mode instead of a convenonal current limit. This output is
best suited as a source for isolated DC ulity power, which may
be used directly or post-regulated with either a linear regulator
or a DC/DC converter. Vo is self protecng, cannot be over-
loaded and can be shorted indenitely. So unlike design-your-
own, or parally complete modules where signicant 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 regulaon to constant power along with the
wide range of product rangs allows the designer to select a
supply ghtly 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, ghtly-regulated supply.
In addion, Vr is supplied internally by Vo. This means that any
capacitance added to Vo can increase the hold-up me of Vr as
well.
*Note: maximum currents specied for constant voltage range
only. See V-I curve on page 2 for Vo in constant power range.
BPWX 4 Series Data Sheet, Page 2 of 2
Revised 11/02/2013
www.biaspower.com Specicaons subject to change
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
Part Number Designation
Part Number Output Configuration Vo Vr
BPWX 4-08-00 Single output 8 VDC N/A
BPWX 4-08-33 Dual Output 8 VDC 3.3 VDC
BPWX 4-08-50 Dual Output 8 VDC 5.0 VDC
BPWX 4-14-00 Single output 14 VDC N/A
BPWX 4-14-33 Dual Output 14 VDC 3.3 VDC
BPWX 4-14-50 Dual Output 14 VDC 5.0 VDC
BPWX 4-24-00 Single Output 24 VDC N/A
PIN DESCRIPTION
L1 Input High
L2 Input Low
N/C No Connection
Vo Output
GND Ground
Vr Vr Output
N/C No Connection
NOTES
1. Pins 0.031” [0.787 mm] round
2. Pins extend 0.125” [3.175 mm]
below stand-offs
Recommended Land Pattern, top view
V-I Curve (For Vo in Constant Power Range)
Recommended Isolation,
0.00
2.00
4.00
6.00
8.00
10.00
12.00
0200 400 600 800 1,000 1,200 1,400 1,600
Vo, volts
Io, mA
V - I, typical
Constant Power Region
