GE Industrial Solutions QRW025 Series - Manual (Page 3)

Lineage Power 3
Data Sheet
August 23, 2010 36 Vdc - 75 Vdc Input, 1.2 to 3.3 Vdc Output; 25A
QRW025 Series Power Modules; dc-dc Converters
Electrical Specifications (continued)
Output Specifications for the QRW025A0P (Vo = 1.2Vdc)
Isolation Specifications
General Specifications
Parameter Device Symbol Min Typ Max Unit
Output Voltage Set Point
(VI = 48 Vdc; IO = IO, min to IO, max, TA = 25 °C)
P Vo 1.18 1.2 1.22 Vdc
Output Voltage
(Over all operating input voltage, resistive load, and
temperature conditions at steady state until end of life.)
P Vo 1.15 — 1.25 Vdc
Output Regulation:
Line (VI = VI, min to VI, max)
Load (IO = IO, min to IO, max)
Temperature (TA = TA, min to TA, max)
P —
—
—
—
—
—
0.05
0.05
5
0.3
0.3
20
%, VO, set
%, VO, set
mV
Output Ripple and Noise
RMS (5 Hz to 20 MHz bandwidth)
Peak-to-peak (5 Hz to 20 MHz bandwidth)
P —
—
—
—
30
100
mVrms
mVp-p
External Load Capacitance — 25,000 µF
Output Current
(Vo =90% of VO, nom.)
P IO 0.0 — 25 Adc
Output Current-limit Inception
(VO = 90% of VO, set)
P IO, lim — 29 — Adc
Output Short-circuit Current (Average)VO = 0.25 V Latched off
Efficiency
(VI = VIN, nom; IO = IO, max), TA = 25 °C
η — 85 — %
Switching Frequency All fSW — 300 — kHz
Dynamic Response
(ΔIO/Δt = 1 A/10 µs, VI = 48 V, TA = 25 °C); tested
with a 220 µF aluminium and a 1.0 µf ceramic
capacitor across the load.):
Load Change from
IO = 50% to 75% of IO, max:
Peak Deviation
Settling Time
(VO < 10% of peak deviation)
Load Change from IO = 50% to 25%
of IO, max :
Peak Deviation
Settling Time
(VO < 10% of peak deviation)
8
200
8
200
mV
µs
mV
µs
Parameter Symbol Min Typ Max Unit
Isolation Capacitance Ciso — 5600 — PF
Isolation Resistance Riso 10 — — MW
Parameter Min Typ Max Unit
Calculated MTBF (IO = 80% of IO, max TA = 40 °C) 1,771,000 Hours
Weight — 37(1.31) — g (oz.)