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NAD12S10-A
DC-DC Converter Technical Manual V1.1
Remote On/Off
On/Off Pin Level
Low level
Left open
It is recommended to control the On/Off pin with
an open collector transistor or similar device.
V
in
V
source
On/Off
G1
GND
Figure 69: Circuit configuration for On/Off function
Output Voltage Trim
Output voltage can be adjusted by installing an
external resistor between the Trim pin and the
GND pin.
V
in
On/Off
V
source
GND
Figure 70: R
external connections
trim
The relationship between R
12
R
trim
V
out
GLOBAL ENERGY EFFICIENCY SPECIALIST
Status
Off
On
V
out
Trim
Load
GND
V
out
Trim
Load
Rtrim
GND
and V
:
trim
out
k
0
6 .
The output voltage varies depending on the R
Note that the trim resistor tolerance directly
affects the output voltage accuracy. It is
recommended to use ±1% trim resistor.
The following table describes the mapping
between the V
and R
out
V
(V)
out
0.7
1.2
1.8
2.5
3.3
5.0
Remote Sense
The remote sense feature compensates for the
voltage drop between the output pins of the
converter and the load. The Sense should be
connected at the load or at the point where
regulation is required. The maximum
compensation voltage is 0.1 V.
If the remote sense function is disabled, leave the
Sense open.
V
out
V
VS+
in
On/Off
Trim
GND
GND
Figure 71: Configuration diagram for remote sense
18
trim
.
trim
R
(kΩ)
trim
120
20
10
6.32
4.44
2.73
Load
.
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