DESCRIPTION
TECHNICAL SPECIFICATIONS
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.
Rev. 12/01
Voltage Range
Reflected Ripple
Setpoint Accuracy
Line Regulation Vin Min. - Vin Max., Iout Rated
Load Regulation Iout Min. - Iout Max., Vin Nom.
Minimum Output Current
Dynamic Regulation, Loadstep
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
† 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.
48 VDC Nominal
24 VDC Nominal
Pk Deviation
Settling Time
Notes
Output
Input
115 -140% Vout Nom.
Second Control Loop
Shutdown / Hiccup
LES SERIES - 15 WATT
10% Iout Rated
110 - 150%
18 - 36 VDC
36 - 75 VDC
0.5% Vout
200% Iout
25% Iout
2% Vout
500 ms
±10%
0.2%
50 mA
±1%
Vout
1
FEATURES
•
•
•
•
Industry Standard Package
Industry Standard Pinout
85°C Case Operation
Short Circuit Protection
Turn-On Time
Remote Shutdown
Switching Frequency
Isolation
Temperature Coefficient
Case Temperature
Humidity Max., Non-Condensing
Vibration, 3 Axes, 5 Min Each
MTBF
Safety
Input - Output
Output - Case
Operating Range
Storage Range
†
85
80
75
70
65
60
55
50
45
85
80
75
70
65
60
55
50
(Bellcore TR-NWT-000332)
10
10
Efficiency vs. Load (48V Input)
20
Efficiency vs. Load (24V Input)
20
30
30
40
40
General
50
LOAD %
50
LOAD %
LES010YE-A
60
•
•
•
•
60
LES010ZE
LES015ZG
EFF. (18v)
EFF. (24v)
EFF. (36v)
24V and 48V Inputs
Input Pi Filter and
6-Sided Shielding
Regulated Outputs
1500V Isolation
70
70
Positive/Negative Logic
80
80
90
5 g, 10 - 55 Hz
-40 To +100°C
-40 To +100°C
UL, cUL, TUV
2.5 X 10 6 hrs
90
0.02 ppm/°C
1500 VDC
100
500 VDC
400 kHz
100
10 ms
95%