Output Capacitance - Delta Electronics Delphi 6A Series Datasheet

FEATURES DESCRIPTIONS (CON.)
Voltage Margining Adjustment
Output voltage margin adjusting can be implemented in
the NE modules by connecting a resistor, R
the Trim pin to the Ground for margining up the output
voltage. Also, the output voltage can be adjusted lower
by connecting a resistor, R
the voltage source Vt. Figure 23 shows the circuit
configuration for output voltage margining adjustment.
ND 6A/10A
NE6A/10A
Vin Vout
Trim
Enable
Ground
Ground
Figure 23: Circuit configuration for output voltage margining
Paralleling
NE06 converters do not have built-in current sharing
(paralleling) ability. Hence, paralleling of multiple NE06
converters is not recommended.
DS_NE12S06A_06302008
, from
margin-up
, from the Trim pin to
margin-down
Vt
Rmargin-down
Rmargin-up
Rs

Output Capacitance

There is internal output capacitor on the NE series
modules. Hence, no external output capacitor is required
for stable operation.
Reflected Ripple Current and Output Ripple and
Noise Measurement
The measurement set-up outlined in Figure 24 has been
used for both input reflected/ terminal ripple current and
output voltage ripple and noise measurements on NE
series converters.
Input reflected current measurement point
Ltest
Vin+ DC-DC Converter
Cs Cin
Cs=270μF*1, Ltest=2uH, Cin=270μF*1
Figure 24: Input reflected ripple/ capacitor ripple current and
output voltage ripple and noise measurement setup for NE06
Load
1uF
10uF
Ceramic
Tan
Output voltage ripple noise measurement point
8