LES SERIES - 15 WATT
DESCRIPTION
FEATURES
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 1500 VDC
isolation, short circuit, and overtemperature protection, as
well as six-sided shielding. The LES is available with
optional enable and voltage trim pins. Please see the IAD
Series for dual output applications.
• Industry Standard Package • 24V and 48V Inputs
• Industry Standard Pinout
• 85°C Case Operation
• Short Circuit Protection
• Input Pi Filter and
6-Sided Shielding
• Regulated Outputs
• 1500V Isolation
Efficiency vs. Load (24V Input)
85
80
75
70
65
60
55
50
45
LES010YE-A
EFF. (18v)
EFF. (24v)
EFF. (36v)
TECHNICAL SPECIFICATIONS
Input
Voltage Range
10
20
30
40
50
60
70
80
90
100
24 VDC Nominal
48 VDC Nominal
Reflected Ripple
18 - 36 VDC
36 - 75 VDC
50 mA
LOAD %
Efficiency vs. Load (48V Input)
Output
85
Setpoint Accuracy
±1%
80
75
70
65
60
55
50
Line Regulation V Min. - V Max., I
Rated
0.2% V
in
in
out
out
Load Regulation I
Min. - I
Max., V Nom.
0.5% V
out
out
in
out
Minimum Output Current
10% I
Rated
out
Dynamic Regulation, Loadstep
Pk Deviation
25% I
LES010ZE
LES015ZG
out
out
2% V
Settling Time
Voltage Trim Range
Short Circuit / Overcurrent Protection
Current Limit Threshold Range, % of I
500 µs
±10%
Shutdown / Hiccup
Rated
110 - 150%
out
10
20
30
40
50
60
70
80
90
100
LOAD %
Short Circuit Current Max.
200% I
out
(12V & 15V : 4.0A when V = 0.25V)
out
out
out
OVP Trip Range
OVP Type
115 -140% V
Nom.
General
out
Second Control Loop
Turn-On Time
10 mS
Remote Shutdown
Switching Frequency
Isolation
Positive/Negative Logic
400 kHz
Notes
Input - Output
Output - Case
1500 VDC
500 VDC
†
MTBF predictions may vary slightly from model to model.
Temperature Coefficient
Case Temperature
Operating Range
Storage Range
Humidity Max., Non-Condensing
Vibration, 3 Axes, 5 Min Each
0.02 ppm/°C
Specifications typically at 25°C, normal line, and full load, unless otherwise
stated.
-40 To +100°C
-40 To +100°C
95%
Soldering Conditions: I/O pins, 260°C, ten seconds; fully compatible with
commercial wave-soldering equipment.
5 g, 10 - 55 Hz
Safety: Agency approvals may vary from model to model. Please consult factory
for specific model information.
6
MTBF† (Bellcore TR-NWT-000332)
Safety
2.5 X 10 hrs
UL, cUL, TUV
Units are water-washable and fully compatible with commercial spray or immersion
post wave-solder washing equipment.
Rev. 06/01
1