Efficiency vs. Load (48V Input)
• 20W Standard Package
• 100°C Case Operation
• 3.3V Output Available
• Open Frame or
Encapsulated
• 88% Efficiency at 5V
• Wide Range Input
• 1500V Isolation
• Short Circuit
Protection
DESCRIPTION
FEATURES
Efficiency vs. Load (24V Input)
IES SERIES
20 WATT
IES DC/DC converters provide up to 20 Watts of
output power in an industry standard package. With
88% efficiency and a maximum case temperature of
100°C, the IES is well suited for the most demanding
telecom, networking, and industrial applications.
The IES features 1500 VDC isolation, short circuit,
and overtemperature protection.
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.
Turn-On Time 10 ms
Remote Shutdown Positive Logic
Switching Frequency 300 kHz Open Frame / 450 kHz Cased
Isolation
Input - Output 1500 VDC
Input - Case (24
Vin
Units) 500 VDC
Output - Case (48
Vin
Units) 500 VDC
Temperature Coefficient 0.03%/°C
Case Temperature
Operating Range -40 To +100°C
Storage Range -40 To +125°C
Humidity Max., Non-Condensing 95%
Vibration, 3 Axes, 5 Min Each 5 g, 10 - 55 Hz
MTBF
†
(Bellcore TR-NWT-000332) 1.9 x 10
6
hrs
Safety UL, CSA, EN60950
Weight (approx.) 1.2 oz
General
Setpoint Accuracy ±1%
Line Regulation V
in
Min. - V
in
Max., I
out
Rated 0.2% V
out
Load Regulation I
out
Min. - I
out
Max., V
in
Nom. 0.5% V
out
Minimum Output Current 10 %
Dynamic Regulation, Loadstep 25% I
out
Pk Deviation 4% V
out
Settling Time 500 µs
Voltage Trim Range ±10%
Short Circuit / Overcurrent Protection Shutdown / Hiccup
Current Limit Threshold Range, % of I
out
Rated 110 - 140%
OVP Trip Range 115 - 140% V
out
Nom.
OVP Type Second Control Loop, Self-Recovering
TECHNICAL SPECIFICATIONS
Voltage Range
24 VDC Nominal 16 - 36 VDC
48 VDC Nominal 36 - 72 VDC
Input Undervoltage Lockout <34V or <17V
UVLO Hysteresis 1V Nom.
Reflected Ripple 25 mA
Input Reverse Voltage Protection Shunt Diode
