Engineering Specs

Specs

  • Compliant to RoHS II EU *Directive 2011/65/EU(Z Versions)
  • Complaint to REACH Directive (ECI) No 1907/2006
  • Ultra-Input Voltage Range (18Vdc to 75Vdc)
  • No Minimum Load
  • High Efficiency - 93.5% at full load
  • Constant Switching Frequency
  • Low Output ripple and noise
  • Output Overcurrent/Voltage Protection
  • Over Temperature Protection
  • ANSI/UL#60950-1-2011 and CAN/CSA† C22.2 No. 60950-1-07,
    Second Edition + A1:2011 (MOD), dated March 19, 2011; and DIN
    EN 60950-1 (VDE‡ 0805 Teil 1):2011-01; EN 60950-1:2006 +
    A11:2009 + A1:2010, DIN EN 60950-1/A12 (VDE 0805-
    1/A12):2011-08; EN 60950-1/A12:2011-02, IEC 60950-
    1(ed.2);am1:2009
  • CE mark meets 2006/95/EC directive§
  • Meets the voltage and current requirements for ETSI 300-132-2
    and complies with and licensed for Basic insulation rating per
    EN60950-1
  • 2250 Vdc Isolation tested in compliance with IEEE 802.3¤ PoE
    standards
  • ISO**9001 and ISO 14001 certified manufacturing facilities

Input No Load Current
VIN = 24Vdc, (IO = 0, module enabled) All IIN,No load 180 mA
VIN = 48Vdc, (IO = 0, module enabled) All IIN,No load 120 mA
Input Stand-by Current
All IIN,stand-by 8 mA
(VIN = 24 to 48Vdc, module disabled)

Inrush Transient All I2t 0.1 A2s
Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 12μH source impedance; VIN=0V to
75Vdc, IO= IOmax ; see Test configuration section)

Input Ripple Rejection (120Hz) All 60 dB

Parameter Device Symbol Min Typ Max Unit
Output Voltage Set-point Vdc
(VIN=24 to 48Vdc, IO=IO, max, TA=25°C) 12 VO VO, set 11.82 12.00 12.18 Vdc
Output Voltage
(Over all operating input voltage, resistive load, and temperature All VO -3.0 ⎯ +3.0 % VO, set conditions until end of life)

Output Regulation
Line (VIN=VIN, min to VIN, max) All ⎯ 0.05 0.2 % VO, set
Load (IO=IO, min to IO, max) All ⎯ 0.05 0.2 % VO, set
Temperature (Tref=TA, min to TA, max) All ⎯ 1.0 1.5 % VO, set

Output Ripple and Noise on nominal output
Measured with 10uF Tantalum||1uF ceramic
(VIN=24 to 48Vdc, IO=80%IO, max, TA=25°C)
RMS (5Hz to 20MHz bandwidth)
12 VO ⎯ ⎯ 75 mVrms
Peak-to-Peak (5Hz to 20MHz bandwidth) ⎯ ⎯ 160 mVpk-pk

External Capacitance
12 VO CO, max 0 ⎯ 2000 μF

Output Current
12 VO Io 0 ⎯ 19.0 Adc

Output Current Limit Inception (Hiccup Mode)
12 VO IO, lim 23 ⎯ Adc

Output Short-Circuit Current
VO ≤ 250 mV @ 25o C All IO, s/c ⎯ 1.2 Arms

Efficiency
VIN=24Vdc, TA=25°C, IO=IO, max 12.0VO η 93.5 ⎯ %

Switching Frequency (Fixed)
VIN=24 to 48Vdc and IO= IO, max All fsw ⎯ 250 ⎯ kHz

Dynamic Load Response
(ΔIO/Δt=0.1A/μs, VIN=24 to 48Vdc, TA=25°C, CO =0uF)
Load Change from IO= 50% to 75% or 25% to 50% of IO,max:
Peak Deviation All Vpk ⎯ 3.0 ⎯ % VO, set
Settling Time (Vo<10% peak deviation) All ts ⎯ 800 ⎯ μs

Product Dimensions
The PowerTech Sigma measures: 5.5"x4.25"x1.5" inches (13.97cmx10.79cmx3.81cm).

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Company Website:  www.RichardsonProducts.com
Email Address:  RPI@RichardsonProducts.com
Phone:  815.464.3575  Fax: 815.464.3576