HCD SERIES
100 WATTS
HCD SERIES - 100 WATTS
FEATURES
• Half-brick size, 2.4” x 2.28” x 0.5”
• Wide input: 36-75V in
• Remote on/off, positive or negative reference
• Short circuit protection
• 1600 VDC isolation
• Independently regulated outputs (see table)
• EMI suppression filter
• Adjustable output voltage
• Two year warranty
• Fixed frequency
• 85% efficiency (typ.)
• UL/CUL 1950, file# E155800
THE HCD SERIES FROM WALL INDUSTRIES, INC.
The HCD Series are dual output fully isolated converters
with high efficiency, 85% typically. Users can get 100
watts of power using current from both rails.
SPECIFICATIONS: HCD SERIES
GENERAL SPECIFICATIONS
INPUT SPECIFICATIONS
Efficiency ........................................................................see table
Isolation voltage ...............Input to Output .............1600VDC, min
Input to Case................1000VDC, min
Input voltage range.......................................................36-75VDC
UVLO start-up voltage ......................................................35V typ
UVLO shudown voltage ....................................................33V typ
Input filter (Note 1)...........................................................L-C type
Output to Case.............1000VDC, min
Input voltage variation......dv/dt..................................5V/ms, max Isolation resistance .................................................109ohms, min
(complies with ETS300 132 part 4.4) Isolation capacitance ................................................1500pF, max
Remote On/Off (Note 2) Pos. logic On..Open or 3.5V<Vr<+Vin Switching frequency ..................................................300KHz, typ
Off............Short or Vr<1.2V Approvals and standards.............IEC60950, UL60950, EN60950
Neg. logic On............Short or Vr<1.2V Case material ..................................Non-conductive black plastic
Off ..Open or 3.5V<Vr<+Vin Base material ..............................................Aluminum base-plate
OVLO start-up voltage ...................................................76.5V typ Potting material................................................Silicon (UL-94 V0)
OVLO shutdown voltage................................................78.5V typ Weight.......................................................................105g (3.7oz)
MTFB (Note 4)......................................................1.004 x 106 hrs
OUTPUT SPECIFICATIONS
Output power....................total output power.......100 Watts, max
Voltage accuracy..............FL and nominal Vin ...................±1.0%
Voltage adjustability .........For each output..........................±10%
Minimum load...........................................................................0%
Line regulation..................LL to HL at Full Load ............see table
Load regulation ................Dual (0% to 100% FL) ..........see table
Dual for each output .............see table
ENVIRONMENTAL SPECIFICATIONS
Operating base plate temp. range (Note 5)........-40ºC to +100ºC
Over temp. protection ......for base plate.............................105ºC
Humidity max, non-condensing..............................................95%
Storage temperature range.................................-55ºC to +125ºC
Thermal shock.......................................................MIL-STD-810D
Vibration............................10~55Hz, 2G, 30 minutes along X,Y,Z
Ripple and noise (Note 3) 20MHz bandwidth ..............100mVp-p
Temperature coefficient.....................................±0.02% / ºC, max
Transient response recovery time 25% load step chg .......200uS
Over voltage protection threshold .....2.5V.............................3.0V
3.3V.............................3.9V
EMC CHARACTERISTICS
Conducted emissions.......EN55022(Note 6).....................Level A
.........................................EN55022(Note 6) ....................Level B
Radiated emissions..........EN55022..................................Level A
Radiated immunity ...........EN61000-4-3.................Perf. Criteria2
Fast transient ...................EN61000-4-4.................Perf. Criteria2
Surge................................EN61000-4-5.................Perf. Criteria2
Conducted immunity ........EN61000-4-6.................Perf. Criteria2
5V................................6.2V
Short circuit protection.......................Hiccup, automatic recovery
3/18/04
603 778 2300
1
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