1
LES010YE-A
45
50
55
60
65
70
75
80
85
10
20
30
40
50
60
70
80
90
100
LOAD %
E
EFF. (18v)
EFF. (24v)
EFF. (36v)
50
55
60
65
70
75
80
85
10
20
30
40
50
LOAD %
60
70
80
90
100
E
LES010ZE
LES015ZG
Efficiency vs. Load (48V Input)
Setpoint Accuracy
Line Regulation V
in
Min. - V
in
Max., I
out
Rated
Load Regulation I
out
Min. - I
out
Max., V
in
Nom.
Minimum Output Current
±1%
0.2% V
out
0.5% V
out
10% I
out
Rated
25% I
out
2% V
out
Dynamic Regulation, Loadstep
Pk Deviation
Settling Time
Voltage Trim Range
Short Circuit / Overcurrent Protection
Current Limit Threshold Range, % of I
out
Rated
Short Circuit Current Max.
(12Vout & 15Vout : 4.0A when Vout= 0.25V)
500
μ
s
±10%
Shutdown / Hiccup
110 - 150%
200% I
out
OVP Trip Range
115 -140% V
out
Nom.
Second Control Loop
OVP Type
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.
Industry Standard Package
Industry Standard Pinout
85°C Case Operation
Short Circuit Protection
24V and 48V Inputs
Input Pi Filter and
6-Sided Shielding
Regulated Outputs
1500V Isolation
DESCRIPTION
FEATURES
Efficiency vs. Load (24V Input)
Voltage Range
24 VDC Nominal
48 VDC Nominal
Reflected Ripple
18 - 36 VDC
36 - 75 VDC
50 mA
Input
Output
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 106hrs
UL, cUL, TUV
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. 06/01
LES SERIES - 15 WATT