Isolation specifications general specifications – GE Industrial Solutions QRW025 Series User Manual

Page 3

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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.)

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