QRW025A0Y4 Lineage Power, QRW025A0Y4 Datasheet - Page 17

• Manufacturer Part Number: QRW025A0Y4
• Description: CONVERTER DC/DC 1.8V 45W OUT T/H
• Manufacturer: Lineage Power
• Series: QRWr
• Type: Isolated with Remote On/Offr

Specifications of QRW025A0Y4

• Output: 1.8V
• Number Of Outputs: 1
• Power (watts): 45W
• Mounting Type: Through Hole
• Voltage - Input: 36 ~ 75V
• Package / Case: 10-DIP Module
• 1st Output: 1.8 VDC @ 25A
• Size / Dimension: 2.28" L x 1.45" W x 0.38" H (57.9mm x 36.8mm x 9.7mm)
• Power (watts) - Rated: 45W
• Operating Temperature: -40°C ~ 85°C
• Efficiency: 88%
• Approvals: CE, CSA, UL, VDE
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• 3rd Output: -
• 2nd Output: -
• 4th Output: -

August 23, 2010
Characteristic Curves
The following figures provide typical characteristics curves for the QRW025A0F (VO = 3.3 V) module at room temperature (TA =
25 °C)
Figure 25.
Figure 26.
Figure 27. Output Ripple Voltage (IO = IO, max).
Lineage Power
95
90
85
80
75
70
0
3 .5
2 .5
1 .5
0 .5
3
2
1
0
0
Input Voltage and Current Characteristics.
Converter Efficiency vs. Output Current.
5
1 0
75V, 25A
36V, 25A
48V, 25A
2 0
10
OUTPUT CURRENT, I
IN P U T V OL T A G E , V
3 0
TIME, t (2µs/div)
15
4 0
I
(V )
O
V
V
V
5 0
(A)
I
I
I
20
= 36 V
= 48 V
= 75 V
I
I
I
6 0
O
O
O
= 25 A
= 12 .5 A
= 2.5 A
25
7 0
36 Vdc - 75 Vdc Input, 1.2 to 3.3 Vdc Output; 25A
30
Tested with a 220µF aluminium and a 1.0µF ceramic capacitor
across the load.
Figure 28. Transient Response to Step Decrease in
Figure 29. Transient Response to Step Increase in Load
Tested with a 10µF aluminium and a 1.0µF tantalum capacitor across
the load.
Figure 30. Start-up from Remote On/Off (IO = IO, max).
Load from 50% to 25% of Full Load
(VI = 48 Vdc).
from 50% to 75% of Full Load
(VI = 48 Vdc).
TIME, t (2 ms/div)
17