PQ60120HZA50 Datasheet, PDF (8/13 Pages) SynQor Worldwide Headquarters – Half-brick DC/DC Converter

Technical Specification
Input: 35-75 V
Output: 12 V
Current: 50 A (600W)
Package: Half-brick
Figure 13: Input reflected ripple current, is, through a 4.7 µ H source
inductor, using a 220 µ F input capacitor, at nominal input voltage and
rated load current (10 mA/div; 2 µ s/div). See Figure 11.
Figure 14: Output voltage ripple at nominal input voltage and rated load
current (50 mV/div; 2 µ s/div). Load capacitance: 1 µ F ceramic capacitor
and 15 µ F tantalum capacitor. Bandwidth: 20 MHz. See Figure 11.
Figure 15: Output voltage response to step-change in input voltage (35 V to 75
V in 300 µ s; 1 ms/div). Load cap: 470 µ F, 15 mW ESR electrolitic capacitor. Top
trace: Vout (500 mV/div). Bottom trace: Vin (10 V/div), at zero load current.
16
14
12
10
8
6
4
36Vin
48Vin
2
75Vin
0
-25
-15
-5
5
15
25
35
45
55
65
Load Current (A)
Figure 17: Output voltage vs. load current showing typical current limit
curves and OVP shutdown point.
Figure 16: Load current (10 A/div; 10 ms/div) as a function of time
when the converter attempts to turn on into a 1 mW short circuit.
Product # PQ60120HZA50
Phone [phone]
www.synqor.com
Doc.# 005-2HZ612J Rev. A
8/20/07
Page 8