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ADF10S48B
AC-DC Converter Technical Manual V1.1
Remote Sense
This function is used to compensate for voltage
drops on R
, which indicates the line impedance
w
between the output and the load. +S, -S, V
and V
(-) should meet the following requirements:
out
(+) – (+S)] ≤ 5% V
[V
out
[(-S) – V
is the rated output voltage. 36 V ≤ [V
(V
out
V
(+)
out
AC1
+S
AC2
Trim
-S
SP
V
(-)
out
R
+BC
-BC
Figure 29: Configuration diagram for remote sense
If the remote sense function is not required, +S
should be connected to V
connected to V
(-).
out
Output Voltage Trim
The output voltage can be adjusted within the
trim range by using the Trim pin.
Trim Up
The output voltage can be increased by
connecting an external resistor between the Trim
pin and the +S pin.
V
(+)
out
AC1
+S
AC2
Trim
-S
SP
V
(-)
out
-BC
+BC
R
Figure 30: Configuration diagram for Trim up
GLOBAL ENERGY EFFICIENCY SPECIALIST
(+),
out
out
(-)] ≤ 0.5 V
out
(+) – V
(-)] ≤ 55 V)
out
out
R
w
Load
R
w
(+) and -S should be
out
R
up
Load
Relationship between R
46300
V
out
R
up
V
48
out
Trim Down
The output voltage can be decreased by
connecting an external resistor between the Trim
pin and the -S pin.
V
(+)
out
AC1
+S
Trim
AC2
-S
SP
V
(-)
out
-BC
R
+BC
Figure 31: Configuration diagram for Trim down
Relationship between R
2000
V
R
down
48
V
out
1.
If the Trim pin is not used, it should be left open.
2.
When output voltage adjustment is used, ensure that
the output voltage is within the required range;
otherwise, the protection function will be activated.
3.
Ensure that the actual output power does not exceed
the maximum output power when raising the voltage.
Enable (ENA)
The Enable signal indicates that the output
voltage of the module is normal and can supply
power to the load (maximum sink current is 10
mA and maximum applied voltage is 75 V). When
the output voltage exceeds 30 V at startup, ENA
is in low resistance state. When the output
voltage drops below 28 V or input power fails,
ENA is in high resistance state. The logic of
Enable is as follows:
Logic
ENA
Enable
Negative
High resistance
Logic
Low resistance
15
and V
:
up
out
3300
(
)
Load
R
down
and V
:
down
out
out
3300
(
)
Output Voltage
≤ 28 V or input
fault, input power
failure
> 30 V
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