Data Sheet
August 30, 2011
Characteristic Curves
ESTW004A2C Series DC-DC Converter Power Modules
36–75V
dc
Input; 15.0V
dc
/4.2A
dc
Output
The following figures provide typical characteristics for the ESTW004A2C (15.0V, 4.2A) at 25 C. The figures are
identical for either positive or negative remote On/Off logic.
On/Off VOLTAGE
V
On/Off
(V) (5V/div)
o
EFFICIENCY,
(%)
OUTPUT VOLTAGE
OUTPUT CURRENT, I
O
(A)
V
O
(V) (5V/div)
TIME, t (10ms/div)
Figure 1. Converter Efficiency versus Output Current.
Figure 4. Typical Start-up Using Remote On/Off,
negative logic version shown (V
IN
= 48V, I
o
= I
o,max
).
OUTPUT VOLTAGE INPUT VOLTAGE
OUTPUT VOLTAGE
V
O
(V) (100mV/div)
V
O
(V) (5V/div)
V
IN
(V) (10V/div)
TIME, t (2s/div)
TIME, t (10ms/div)
Figure 2. Typical output ripple and noise ( I
o
= I
o,max
).
Figure 5. Typical Start-up Using Input Voltage (V
IN
=
48V, I
o
= I
o,max
).
OUTPUT VOLTAGE OUTPUT CURRENT
V
O
(V) (200mV/div)
I
O
(A) (1A/div)
TIME, t (200µs/div)
Figure 3. Transient Response to 0.1A/µS Dynamic
Load Change from 50% to 75% to 50% of full load,
V
IN
=48V.
LINEAGE
POWER
5
LINEAGEPOWER [ LINEAGE POWER CORPORATION ]
