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HWD075DGE Datasheet(PDF) 6 Page - Power-One

Part No. HWD075DGE
Description  HWD Series . 75 Watt, Half-Brick DC/DC Converter Wide Input Range Dual Output
Download  15 Pages
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Maker  POWER-ONE [Power-One]
Homepage  http://www.power-one.com
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HWD075DGE Datasheet(HTML) 6 Page - Power-One

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Datasheet
HWD Series – 75 Watt, Half-Brick DC/DC Converter
Wide Input Range
Dual Output
REV. 9/01
Page 6 of 15
www.power-one.com
Test Setup
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.
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.
BATTERY
Cs 220 uF
ESR < 0.1 OHM
@ 20 ºC, 100
kHz
Ltest
12 uH
22uF
ESR < 0.7 OHM
@ 20 ºC, 100 kHz
Vi(+)
Vi(-)
TO CURRENT PROBE
DUT
LOAD1
LOAD2
0.1uf
ceramic
0.1uf
ceramic
SCOPE
SCOPE
COPPER STRIPS (2 to 3 inches)
+Vo1
-Vo1
+Vo2
-Vo2
22uF
Tantalum
22uf
Tantalum


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