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 1500VDC isolation, short circuit, and over-
temperature 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
• 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
70
65
60
55
50
45
LES010YE-A
EFF. (18v)
EFF. (24v)
EFF. (36v)
TECHNICAL SPECIFICATIONS
Input
Voltage Range
24 VDC Nominal
48 VDC Nominal
Reflected Ripple
±8 - 36 VDC
36 - 75 VDC
50 mA
10
20
30
40
50
60
70
80
90
100
LOAD %
Efficiency vs. Load (48V Input)
Output
85
80
75
70
65
60
55
50
Setpoint Accuracy
Line Regulation Vin Min. - Vin Max., Iout Rated
±±1
0.21
Vout
Load Regulation Iout Min. - Iout Max., Vin Nom.
Minimum Output Current
Dynamic Regulation, Loadstep
Pk Deviation
Settling Time
Voltage Trim Range
0.51 Vout
±01 Iout Rated
251 Iout
21 Vout
500 ms
±±01
LES010ZE
LES015ZG
Short Circuit / Overcurrent Protection
Current Limit Threshold Range, 1 of Iout Rated
Short Circuit Current Max.
Shutdown / Hiccup
±±0 - ±501
2001 Iout
(±2Vout & ±5Vout : 4.0A when Vout= 0.25V)
10
20
30
40
50
60
70
80
90
100
Ovp Trip Range
Ovp Type
±±5 -±401 Vout Nom.
Second Control Loop
LOAD %
General
Notes
Turn-On Time
10 ms
Positive/Negative Logic
400 kHz
† MTBF predictions may vary slightly from model to model.
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
Specifications typically at 25°C, normal line, and full load,
unless otherwise stated.
1500 VDC
500 VDC
0.02 ppm/°C
Soldering Conditions: I/O pins, 260°C, ten seconds; fully
compatible with commercial wave-soldering equipment.
-40 To +100°C
-40 To +100°C
95%
Safety: Agency approvals may vary from model to model.
Please consult factory for specific model information.
5 g, 10 - 55 Hz
Units are water-washable and fully compatible with commercial
spray or immersion post wave-solder washing equipment.
6
MTBF† (Bellcore TR-NWT-000332)
Safety
2.5 X 10 hrs
UL, cUL, TUV
Rev. NOV 13, 2002
1