PQ60400HZX15 Datasheet, PDF (9/16 Pages) SynQor Worldwide Headquarters – Fixed frequency switching provides predictable EMI performance

Technical Figures
Input: 35-75V
Output: 40V
Current: 15A
Package: Half-brick
Input
Reflected
Ripple
Current
source
impedance
Input
Terminal
Ripple
Current
Output
Voltage
Ripple
i_S
i_C
DC-DC
Converter
VOUT
VSOURCE
electrolytic
capacitor
ceramic electrolytic
capacitor capacitor
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 Rreflected 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 voltage at nominal input voltage and rated load
current (200 mV/div, 2µs/div). Load capacitance: one 1.0µF ceramic capacitor..
Bandwidth: 20 MHz. (See Figure 13).
45
40
35
30
25
20
15
10
5
0
0
35Vin
48Vin
75Vin
5
Current-Limit
Shutdown
10
15
20
25
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 (10A/div) as a function of time when the
converter attempts to turn on into a 1 mΩ short circuit (20ms/div).
Product # PQ60400HZx15
Phone [phone]
www.synqor.com
Doc.# 005-0005988 Rev. D
03/04/14
Page 9