DNL10S0A0S16NFD Delta Electronics, Inc., DNL10S0A0S16NFD Datasheet - Page 6

• Manufacturer Part Number: DNL10S0A0S16NFD
• Description: Delphi Dnl, Non-isolated Point Of Load Dc/dc Power Modules 8.3-14vin, 0.75-5.0v/16a Out
• Manufacturer: Delta Electronics, Inc.

TEST CONFIGURATIONS
Note: Input reflected-ripple current is measured with a
Figure 17: Input reflected-ripple test setup
Note: Use a 10μF tantalum and 1μF capacitor. Scope
Figure 18: Peak-peak output noise and startup transient
Figure 19: Output voltage and efficiency measurement test
Note: All measurements are taken at the module
DS_DNL10SMD_03052009
SUPPLY
BATTERY
CONTACT RESISTANCE
GND
Vo
simulated
measured at the input of the module.
measurement should be made using a BNC
connector.
terminals. When the module is not soldered (via
socket), place Kelvin connections at module
terminals to avoid measurement errors due to
contact resistance.
I
measurement test setup
setup
COPPER STRIP
TO OSCILLOSCOPE
η
tantalum
10uF
=
VI
(
source
Vo
GND
Vi
ceramic
Vo
1uF
L
×
×
Tantalum
Io
Ii
2
)
100uF
SCOPE
DISTRIBUTION LOSSES
×
inductance.
100
CONTACT AND
Io
Resistive
%
Load
V
V
LOAD
I
(+)
I
(-)
Current
is
DESIGN CONSIDERATIONS
Input Source Impedance
To maintain low-noise and ripple at the input voltage, it is
critical to use low ESR capacitors at the input to the
module. Figure 20 shows the input ripple voltage
(mVp-p) for various output models using 6x47 uF low
ESR tantalum capacitors (SANYO P/N:16TPB470M,
47uF/16V or equivalent) and 6x22 uF very low ESR
ceramic capacitors (TDK P/N:C3225X7S1C226MT,
22uF/16V or equivalent).
The input capacitance should be able to handle an AC
ripple current of at least:
Figure 20: Input ripple voltage for various output models,
Irms
350
300
250
200
150
100
=
50
0
Iout
0
6x22uF ceramic capacitors at the input)
Io = 16A (Cin = 6x47uF tantalum capacitors and
Vout
Vin
1
⎛
⎜
⎝
1
−
Vout
Vin
2
O utput V oltage (V dc)
⎞
⎟
⎠
3
Arms
4
Tantalum
Ceramic
5
6
6