GE Industrial Solutions QRW025 Series - Manual (Page 12)

Lineage Power 12
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 QRW025A0G (Vo = 2.5Vdc)
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)
G Vo 2.47 2.5 2.53 Vdc
Output Voltage
(Over all operating input voltage, resistive load, and
temperature conditions at steady state until end of life.)
G Vo 2.42 — 2.58 Vdc
Output Regulation:
Line (VI = VI, min to VI, max)
Load (IO = IO, min to IO, max)
Temperature (TA = TA, min to TA, max)
G —
—
—
—
—
—
0.05
0.05
15
0.2
0.2
50
%, 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)
G —
—
—
—
35
100
mVrms
mVp-p
External Load Capacitance — 25,000 µF
Output Current
(Vo =90% of VO, nom.)
G IO 0.0 — 25 Adc
Output Current-limit Inception
(VO = 90% of VO, set)
G IO, lim — 30 — Adc
Output Short-circuit Current (Average)VO = 0.25 V Latched off
Efficiency
(VI = VIN, nom; IO = IO, max), TA = 25 °C
η — 90 — %
Switching Frequency All fSW — 300 — kHz
Dynamic Response
(DIO/Dt = 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)
5
200
5
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) 1,558,000 Hours
Weight — 37(1.31) — g (oz.)