HHS40ZE Datasheet, PDF (1/2 Pages) Power-One – HHS40 Series . 40A Half-Brick DC/DC Converter 48V Input 3.3V, 2.5V Output

HHS40 Series – 40A Half-Brick DC/DC Converter
48V Input
3.3V, 2.5V Output
Product Brief
Features
Applications
• Distributed power architectures
• Telecommunications equipment
• LAN/WAN applications
• Data processing applications
• Open frame design with Insulated Metal
Substrate
• Low profile – 12.7 mm height
• Input/output isolation: 1500VDC, meets basic
insulation requirements
• Efficiency in excess of 90%
• Output back-drive capability
• Low conducted and radiated EMI
• Output over-current protection
• Output over-voltage protection
• Over-temperature protection
• Remote sense
• Set point accuracy ± 2%
• Remote on/off (primary referenced), positive
or negative logic
• Output voltage trim, positive or negative
• UL 1950 Recognition, CSA 22.2 No. 950-95
certification, TUV IEC950
Description
The HHS40 is a series of high-density Halfbrick size, High-current, Single-output DC/DC converters with
through-hole mounting. The products provide on-board conversion of standard Telecom and Datacom input
voltages to isolated, precisely regulated low output voltages. Very high efficiency and superior thermal
design enable the products to deliver full rated power at 55° C with 300 LFM or 45° C with 200LFM forced air
without addition of a heatsink. Such level of performance is presently not matched by other 40A rated
products on the market.
Model
HHS40ZE
HHS40ZD
Input
voltage
VDC
36-75
36-75
Selection Chart
Input
Output Output rated
current, voltage,
current,
max, ADC VDC
ADC
5.0
3.3
40
3.5
2.5
40
Output Ripple/
Noise, mV p-p
150
100
Typical
Efficiency
@40A %
90
88
REV. 7/01
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