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HWD075DGE Schematic ( PDF Datasheet ) - Power-One

Teilenummer HWD075DGE
Beschreibung HWD Series . 75 Watt/ Half-Brick DC/DC Converter Wide Input Range Dual Output
Hersteller Power-One
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Gesamt 15 Seiten
HWD075DGE Datasheet, Funktion
HWD Series – 75 Watt, Half-Brick DC/DC Converter
Wide Input Range
Dual Output
Datasheet
Features
Applications
Distributed power architectures
Telecommunications equipment
LAN/WAN applications
Data processing applications
75 Watts total output power
Wide input range 18V – 60V
Independent dual outputs
Flexible load sharing
Open-frame design with IMS board
Low profile – 12.7mm height
Start-up into high capacitive load
Output overcurrent protection (self re-start)
Output overvoltage protection (self re-start)
Overtemperature protection (self re-start)
Setpoint accuracy ± 2.0%
Output voltage trim adjust, independent for
each output
Input/output isolation: 1500V
UL 1950 Recognition, CSA 22.2 No. 950-95
certification
Description
The HWD series provides onboard conversion of standard telecom and datacom input voltages into two isolated
low-voltage outputs. These products offer a unique combination of wide input range, low profile, and high current
capability. High efficiency and advanced thermal management enable these half-brick products to deliver full
rated power at 55°C ambient temperature, with 200 LFM airflow, without the addition of heatsinks.
Model
HWD075DGE-A
Input
voltage
range, VDC
18-60
Selection Chart
Input
Output Output rated
current, voltage, current,
max, ADC VDC
ADC
5.5 5.0/3.3 15/15
Output Ripple
and Noise,
mV p-p
100
Efficiency %
81% @ 24Vin
79% @ 48Vin
REV. 9/01
www.power-one.com
Page 1 of 15






HWD075DGE Datasheet, Funktion
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

6 Page









HWD075DGE pdf, datenblatt
HWD Series – 75 Watt, Half-Brick DC/DC Converter
Wide Input Range
Dual Output
Characteristic Curves
Tb = 40 ºC, nominal input voltage, and rated load unless otherwise specified.
HWD15DGE Efficiency vs Output Power
90
85
80
Eff
ici 75
en
cy
(%
) 70
65
60
55
0
10 20 30 40 50 60
Output Power (W)
Figure 6. Efficiency vs Output Power
Datasheet
Vinmin
Vinnom1
Vinnom2
Vinmax
70
REV. 9/01
www.power-one.com
Page 12 of 15

12 Page





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