Power-one HHS40ZE, HHS40ZD Datasheet

HHS40 Series – 40A Half-Brick DC/DC Converter
48V Input

3.3V, 2.5V Output

Features

• Open frame design with Insulated Metal

• Low profile – 12.7 mm height

• Input/output isolation: 1500VDC, meets basic

• 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

Applications

• Distributed power architectures

• Telecommunications equipment

• LAN/WAN applications

• Data processing applications

• Set point accuracy ± 2%

• Remote on/off (primary referenced), positive

• Output voltage trim, positive or negative

• UL 1950 Recognition, CSA 22.2 No. 950-95

Product Brief

Substrate

insulation requirements

or negative logic

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.

Selection Chart

Model Input

voltage

VDC

HHS40ZE 36-75 5.0 3.3 40 150 90
HHS40ZD 36-75 3.5 2.5 40 100 88

Input

current,

max, ADC

Output

voltage,

VDC

Output rated

current,

ADC

Output Ripple/
Noise, mV p-p

Typical

Efficiency

@40A %

REV. 7/01 Page 1 of 2

www.power-one.com

HHS40 Series – 40A Half-Brick DC/DC Converter
48V Input

3.3V, 2.5V Output

Mechanical Drawing

Product Brief

Pin#Functio

n

1-Vin
2Case
3ON/OFF
4+Vin
5 -Vout
6-Sense
7Trim
8+Sense
9 +Vout

Bottom (Pin) View Side View

Tolerances: .xx ± .020 (.5)

.xxx ± .010 (.25)

Pin diameter ± .0.002 (.05)

Ordering Information

Options Suffixes to add to part number

Positive- Standard, no suffix requiredRemote On/Off
Negative- Add “N” suffix
Negative- Standard, no suffix requiredTrim
Lucent compatible- Add “T” suffix

Pin Length

0.18”- Standard, no suffix required

0.11”- Add “8” suffix

0.15”- Add “9” suffix

Notes

1. Consult factory for the complete list of available options.

2. Power-One products are not authorized for use as critical components in life support systems, equipment used in hazardous
environments, or nuclear control systems without the express written consent of the President of Power-One, Inc.

3. Specifications are subject to change without notice.

REV. 7/01 Page 2 of 2

www.power-one.com