HES SERIES
150 WATT
Powering Communications and Technology
DESCRIPTION
HES single output DC/DC converters provide up to
150 Watts of output power in an industry standard,
half-brick package and footprint. These units feature
ultra-high efficiency, Class A conducted noise specs,
and fixed switching frequency. The HES is designed
with open-frame packaging, along with planar
magnetics to provide maximum useable power with
minimal thermal constraints. The HES is especially
suited to harsh telecom, networking, and industrial
applications, and is fully compatible with production
board washing processes.
TECHNICAL SPECIFICATIONS
FEATURES
• High Efficiency
• Industry Standard Half-
Brick
• Open-Frame Packaging • Positive or Negative
• 100°C Baseplate
Operation
• Water Washable
• “True-Trim” Option
• 1500V Isolation
Input
Voltage Range
24 VDC Nominal
18 - 36 VDC
36 - 72 VDC
50 mA
Shunt Diode
<34V/1V Nom.
48 VDC Nominal
Reflected Ripple
Input Reverse Voltage Protection
Input Undervoltage Lockout / Hysteresis
Logic
Output
Efficiency vs. Load (48V Input)
Setpoint Accuracy
1%
Line Regulation V Min. - V Max., I
Rated
0.2% V
95
90
85
80
75
70
65
60
55
50
in
in
out
out
Load Regulation I
Min. - Iout Max., V Nom.
0.2% V
out
0.5 VDC
out
in
Remote Sense Headroom
Minimum Output Current
Dynamic Regulation, Loadstep
Pk Deviation
10 %
25% I
out
4% V
out
Settling Time
500 ms
10%
HES033ZE
HES075ZG
HES100ZE
Voltage Trim Range
Short Circuit / Overcurrent Protection
Current Limit Threshold Range, % of I
OVP Trip Range
Shutdown / Hiccup
110 - 130%
Rated
out
120 - 140% V
Nom.
out
OVP Type
Self Recovering
1
2
3
4
5
6
7
8
9
10
X10 = LOAD %
General
Turn-On Time
10 ms
Remote Shutdown
Remote Shutdown Reference
Switching Frequency 2.5 & 3.3, 5V Model
Isolation
Positive Or Negative Logic
Notes
V
Negative
in
200 kHz, 300 kHz (Respectively)
†
MTBF predictions may vary slightly from model to model.
Input - Output
Input - Case
Output - Case
Temperature Coefficient
Case Temperature
Operating Range
1500 VDC
1050 VDC
500 VDC
0.02%/°C
Specifications typically at 25°C, normal line, and full load,
unless otherwise stated.
Soldering Conditions: I/O pins, 260°C, ten seconds; fully
compatible with commercial wave-soldering equipment.
-40 To +100°C
-40 To +125°C
105 To 115°C
5 g, 10 - 55 Hz
Storage Range
Safety: Agency approvals may vary from model to model.
Please consult factory for specific model information.
Thermal Shutdown Range
Vibration, 3 Axes, 5 Min Each
6
†
MTBF (Bellcore Tr-nwt-000332)
1.8 X 10 hrs
Units are water-washable and fully compatible with commercial
spray or immersion post wave-solder washing equipment.
Safety
Weight (Approx.)
UL 1950, Csa 22.2-950, En60950
1.4 oz
1