HWD075DGE Datasheet, PDF (6/15 Pages) Power-One – HWD Series . 75 Watt, Half-Brick DC/DC Converter Wide Input Range Dual Output

HWD Series – 75 Watt, Half-Brick DC/DC Converter
Wide Input Range
Dual Output
Datasheet
Test Setup
TO CURRENT PROBE
BATTERY
Ltest
12 uH
Cs 220 uF
ESR < 0.1 OHM
@ 20 ºC, 100
kHz
22uF
ESR < 0.7 OHM
@ 20 ºC, 100 kHz
Vi(+)
Vi(-)
Figure 1 Input Reflected Ripple Current Test Set-up:
Note: Measure input reflected-ripple current with a simulated inductance (Ltest) of 12 uH. Capacitor Cs offsets possible
battery impedance. Measure current as shown above.
DUT
+Vo1
-Vo1
COPPER STRIPS (2 to 3 inches)
0.1uf
ceramic
22uF
Tantalum
SCOPE
+Vo2
-Vo2
0.1uf
ceramic
22uf
Tantalum
SCOPE
LOAD1
LOAD2
Figure 2: Output Ripple Measurement Test Set-up:
Note: Use a 0.1uf ceramic and 22uF tantalum capacitor. Scope measurement should be made using a BNC
socket. Position loads between 51 mm and 76 mm (2 in. and 3 in.) from module.
REV. 9/01
www.power-one.com
Page 6 of 15