DNL10S0A0R16NFD DELTA [Delta Electronics, Inc.], DNL10S0A0R16NFD Datasheet - Page 8

• Manufacturer Part Number: DNL10S0A0R16NFD
• Description: Delphi DNL, Non-Isolated Point of Load DC/DC Power Modules: 8.3-14Vin, 0.75-5.0V/16A out
• Manufacturer: DELTA [Delta Electronics, Inc.]

FEATURES DESCRIPTIONS (CON.)
Over-Temperature Protection
The over-temperature protection consists of circuitry
that provides protection from thermal damage. If the
temperature exceeds the over-temperature threshold
the module will shut down. The module will try to restart
after shutdown. If the over-temperature condition still
exists during restart, the module will shut down again.
This restart trial will continue until the temperature is
within specification
Remote Sense
The DNL provide Vo remote sensing to achieve proper
regulation at the load points and reduce effects of
distribution losses on output line. In the event of an open
remote sense line, the module shall maintain local sense
regulation through an internal resistor. The module shall
correct for a total of 0.1V of loss. The remote sense line
impedance shall be < 10Ω.
Figure 23: Effective circuit configuration for remote sense
Output Voltage Programming
The output voltage of the DNL can be programmed to any
voltage between 0.75Vdc and 5.0Vdc by connecting one
resistor (shown as Rtrim in Figure 24) between the TRIM
and GND pins of the module. Without this external
resistor, the output voltage of the module is 0.7525 Vdc.
To calculate the value of the resistor Rtrim for a particular
output voltage Vo, please use the following equation:
Rtrim is the external resistor in Ω
Vo is the desired output voltage
Rtrim
Distribution Losses
DS_DNL10SIP16_01262007
Distribution Losses
:=
⎛
⎜
⎝
Vo
operation
10500
−
Vin
0.7525
GND
Sense
−
Vo
1000
Distribution Losses
Distribution Losses
⎞
⎠
⋅
Ω
RL
For example, to program the output voltage of the DNL
module to 3.3Vdc, Rtrim is calculated as follows:
Rtrim = 3.122 kΩ
DNL can also be programmed by applying a voltage
between the TRIM and GND pins (Figure 25). The
following equation can be used to determine the value of
Vtrim needed for a desired output voltage Vo:
Vtrim is the external voltage in V
Vo is the desired output voltage
For example, to program the output voltage of a DNL
module to 3.3 Vdc, Vtrim is calculated as follows
Vtrim = 0.530V
Figure 24: Circuit configuration for programming output voltage
Figure 25: Circuit Configuration for programming output voltage
Rtrim
Vtrim
Vtrim
:=
:=
:=
0.7
⎛
⎜
⎝
0.7
2.5475
using an external resistor
using external voltage source
10500
−
−
(
⎡ ⎣
2.5475 0.0667
(
Vo
−
1000
−
⋅
0.7525
⎞
⎠
⋅
Ω
)
)
⋅
0.0667
⎤ ⎦
8