PQ60280HZX22 Datasheet, PDF (9/16 Pages) SynQor Worldwide Headquarters – High efficiency, 94% at full rated load current

Technical Figures
Input: 35-75V
Output: 28V
Current: 21.5A
Package: Half-brick
Figure 13: Test Set-up Diagram showing measurement points for Input Terminal
Ripple Current (Figure 14), Input Reflected Ripple Current (Figure 15) and
Output Voltage Ripple (Figure 16).
Figure 14: Input Terminal Ripple Current, ic, at full rated output current and
nominal input voltage with 4.7µH source impedance and 220µF electrolytic
capacitor (Ch.1 500mA/div, 2µs/div). (See Figure 13).
Figure 15: Input Reflected Ripple Current, is, through a 4.7 µH source inductor
at nominal input voltage and rated load current (10 mA/div, 2µs/div). (See
Figure 13).
Figure 16: Output Ripple votlage at nominal input voltage and rated load
current (200 mV/div, 2µs/div). Load capacitance: 1µF ceramic and 15µF
tanalum output capacitors. Bandwidth: 20 MHz. (See Figure 13).
30
25
20
15
Current-Limit
10
Shutdown
5
35Vin
48Vin
75Vin
0
0
5
10
15
20
25
30
Load Current (A)
Figure 17: Output I-V Characteristics (output voltage vs. load current) showing
typical current limit curves and converter shutdown points.
Figure 18: Output Short Load Current (20A/div;20ms/div) as a function of time
when the converter attempts to turn on into a 1 mΩ short circuit.
Product # PQ60280HZx22
Phone [phone]
www.synqor.com
Doc.# 005-0005788 Rev. D
12/26/13
Page 9