HCD SERIES
TO 75 WATTS
FEATURES
• 75 watts total output power
5V/3.3V, 5V/1.8V, 3.3V/2.5V, 3.3V/1.8V
• independently regulated outputs
• no minimum load
• under-voltage lockout
• efficiency up to 88%
• half-brick package
• tight line-load regulation
The HCD series is a high density, half-brick size, high
current, dual output dc/dc converter with through-hole
mounting. The series provides on-board conversion of
standard telecom and datacom input voltages to two
independently regulated output voltages.
SPECIFICATIONS: HCD SERIES
All specifications apply at 25° C ambient unless otherwise
noted.
GENERAL SPECIFICATIONS
INPUT SPECIFICATIONS
Input Voltage Range...............................36 - 75VDC
Efficiency........................................................see table
Isolation Voltage (input to output)................1600 VDC
Input Filter....................................................L-C type
9
Isolation Resistance (input to output)...........10 ohms
Switching Frequency.......................................300 kHz
OUTPUT SPECIFICATIONS
Output Current............................................see table
Voltage Accuracy.........................................+/- 1.5%
Line Regulation (HL-LL) @ full load............+/- 0.2%
Load Regulation (10-100% load).................+/- 0.2%
Short Circuit Protection...........hiccup, auto recovery
ENVIRONMENTAL SPECIFICATIONS
Operating Temperature (baseplate).......-40° to 100° C
Storage Temperature...........................-55° to +125° C
Humidity (non-condensing)...................5% to 95% RH
Cooling.............................................heat sink optional
Ripple/Noise (20MHz BW).....................100 mV P-P
Transient Response (25% load step).............200 uS
PHYSICAL SPECIFICATIONS
Dimensions...................................2.40” x 2.28” x 0.50”
Weight.................................................................1.5 oz
Case Material..............................................open frame
Due to advances in technology, specifications subject to
change without notice.
1
603 778 2300
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