LES DC/DC Series Data Sheet
Description
LES DC/DC converters provide up to 15 watts of output
power in an industry-standard package and footprint. With
a maximum case temperature of 100°C, the LES is well
suited for the most demanding telecom, networking, and
industrial applications. The LES features 1500VDC
isolation, short circuit protection, and six-sided shielding.
The LES is available with optional enable and voltage trim
pins. Please see the IAD Series for dual output
applications.
Features
•
•
•
•
Industry Standard
Package
Industry Standard Pinout
100°C Case Operation
Short Circuit Protection
•
•
•
•
24V and 48V Inputs
Input Pi Filter and
6-Sided Shielding
Regulated Outputs
1500V Isolation
Efficiency vs. Load (24V Input)
85
80
75
EFFICIENCY %
70
65
60
55
50
LES010YE-A
EFF. (18v)
EFF. (24v)
EFF. (36v)
Technical Specifications
Input
Voltage Range
24 VDC Nominal
48 VDC Nominal
Reflected Ripple
18 - 36 VDC
36 - 75 VDC
50 mA
45
10
20
30
40
50
60
70
80
90
100
LOAD %
Output
Setpoint Accuracy
Line Regulation Vin Min. - Vin Max., Iout Rated
Load Regulation Iout Min. - Iout Max., Vin Nom.
Minimum Output Current
Dynamic Regulation, Loadstep
Pk Deviation
Settling Time
Voltage Trim Range
Short Circuit / Overcurrent Protection
Current Limit Threshold Range, % of Iout Rated
Short Circuit Current Max.
(12Vout & 15Vout : 4.0A when Vout= 0.25V)
Ovp Trip Range
Ovp Type
±1%
0.2%
Vout
0.5% Vout
10% Iout Rated
25% Iout
2% Vout
500 ms
±10%
Shutdown / Hiccup
110 - 150%
200% Iout
115 -140% Vout Nom.
Second Control Loop
85
80
75
EFFICIENCY %
Efficiency vs. Load (48V Input)
70
65
60
55
50
10
20
30
40
50
60
70
80
90
100
LOAD %
LES010ZE
LES015ZG
Notes
† MTBF predictions may vary slightly from model to model.
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.
Safety: Agency approvals may vary from model to model.
Please consult factory for specific model information.
Units are water-washable and fully compatible with commercial
spray or immersion post wave-solder washing equipment.
REV. JUL 11, 2003
General
Turn-On Time
Remote Shutdown
Switching Frequency
Isolation
Input - Output
Output - Case
Temperature Coefficient
Case Temperature
Operating Range
Storage Range
Humidity Max., Non-Condensing
Vibration, 3 Axes, 5 Min Each
MTBF
†
(Bellcore TR-NWT-000332)
Safety
10 ms
Positive/Negative Logic
400 kHz
1500 VDC
500 VDC
0.02 ppm/°C
-40 To +100°C
-40 To +100°C
95%
5 g, 10 - 55 Hz
2.5 X 106 hrs
UL, cUL, TUV
Page 1 of 3
OPTIONS
This page is offered as a reference. Consult factory for actual availability of options. When ordering
equipment options, use the following suffix information. Select preferred option(s) and add the suffix to the
model number. Ordering option examples are located below the options table.
OPTION
Negative Logic
Lucent-Compatible Trim
Trim
Enable
Trim and Enable
SUFFIX
N
T
1
2
3
APPLICABLE SERIES
HAS, HBD, HBS, HES, HLS, HLD, LES,
QBS, QES, QLS, TES, TQD
HAS, HBD, HBS, HES, HLS, QBS, QES,
QLS
IAS, LES
IAD, IAS, LES, SMS
IAS, LES
REMARKS
TTL "Low" Turns Module ON
TTL "High" Turns Module OFF
Pin Length and Heatsink Options
0.110" (2.8mm) Pin Length
0.150" (3.8mm) Pin Length
0.24" (6.1mm) Horizontal Heatsink
0.24" (6.1mm) Vertical Heatsink
0.45" (11.4mm) Horizontal Heatsink
0.45" (11.4mm) Vertical Heatsink
0.95" (24.1mm) Horizontal Heatsink
0.95" (24.1mm) Vertical Heatsink
8
9
1H
1V
2H
2V
3H
3V
All Leaded Models
All Leaded Models
All 1/4-Bricks, 1/2-Bricks, 3/4-Bricks, Full-Bricks
(Except HLS, HLD, QLS, TLD, and TKD Packages)
All 1/4-Bricks, 1/2-Bricks, 3/4-Bricks, Full-Bricks
(Except HLS, HLD, QLS, TLD, and TKD Packages)
All 1/4-Bricks, 1/2-Bricks, 3/4-Bricks, Full-Bricks
(Except HLS, HLD, QLS, TLD, and TKD Packages)
All 1/4-Bricks, 1/2-Bricks, 3/4-Bricks, Full-Bricks
(Except HLS, HLD, QLS, TLD, and TKD Packages)
All 1/4-Bricks, 1/2-Bricks, 3/4-Bricks, Full-Bricks
(Except HLS, HLD, QLS, TLD, and TKD Packages)
All 1/4-Bricks, 1/2-Bricks, 3/4-Bricks, Full-Bricks
(Except HLS, HLD, QLS, TLD, and TKD Packages)
Standard Pin Length is 0.180" (4.6mm)
Includes Thermal Pad
Includes Thermal Pad
Includes Thermal Pad
Includes Thermal Pad
Includes Thermal Pad
Includes Thermal Pad
Example Options:
HBS050ZG-ANT3V = HBS050ZG-A with negative logic, Lucent-compatible trim, and 0.95” vertical heatsink.
LES015YJ-3N = LES015YJ with optional trim and enable, negative logic.
QBS066ZG-AT8 = QBS066ZG-A with Lucent-compatible trim and 0.110” pin length.
NUCLEAR AND MEDICAL APPLICATIONS - 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 respective divisional president
of Power-One, Inc.
TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on the
date manufactured. Specifications are subject to change without notice.
REV. JUL 11, 2003
Page 3 of 3
PCB Design
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