107587800 Lineage Power, 107587800 Datasheet - Page 12

• Manufacturer Part Number: 107587800
• Description: Module DC-DC 1-OUT 12V 3A 30W 9-Pin
• Manufacturer: Lineage Power
• Type: Step Downr

Specifications of 107587800

• Output Current: 3 A
• Output Voltage: 12 V
• Input Voltage: 48 V
• Number Of Outputs: 1
• Output Power: 30 W

Lineage Power36 Vdc to 75 Vdc Inputs; 30 W
Feature Descriptions
Overcurrent Protection
To provide protection in a fault (output overload) condi-
tion, the unit is equipped with internal current-limiting
circuitry and can endure current limiting for an unlim-
ited duration. At the point of current-limit inception, the
unit shifts from voltage control to current control. If the
output voltage is pulled very low during a severe fault,
the current-limit circuit can exhibit either foldback or
tailout characteristics (output current decrease or
increase). The unit operates normally once the output
current is brought back into its specified range.
Remote On/Off
Two remote on/off options are available. Positive logic
remote on/off turns the module on during a logic-high
voltage on the REMOTE ON/OFF pin, and off during a
logic low. Negative logic remote on/off turns the module
off during a logic high and on during a logic low. Nega-
tive logic, device code suffix “1,” is the factory-preferred
configuration.
To turn the power module on and off, the user must
supply a switch to control the voltage between the
on/off terminal and the V
switch can be an open collector or equivalent (see Fig-
ure 23). A logic low is V
which the module is off. The maximum I
logic low is 1 mA. The switch should maintain a logic-
low voltage while sinking 1 mA.
During a logic high, the maximum V
the power module is 6 V. The maximum allowable leak-
age current of the switch at V
The module has internal capacitance to reduce noise
at the ON/OFF pin. Additional capacitance is not gen-
erally needed and may degrade the start-up character-
istics of the module.
CAUTION: To avoid damaging the power module
12
or external on/off circuit, the connec-
tion between the V
source must be made before or simulta-
neously to making a connection
between the ON/OFF pin and the input
source (either directly or through the
external on/off circuit.)
on/off
I
(–) terminal (V
= –0.7 V to 1.2 V, during
on/off
I
(–) pin and the input
= 6 V is 50 µA.
on/off
on/off
on/off
generated by
). The
during a
Remote Sense
Remote sense minimizes the effects of distribution
losses by regulating the voltage at the remote-sense
connections. The voltage between the remote-sense
pins and the output terminals must not exceed the out-
put voltage sense range given in the Feature Specifica-
tions table, i.e.:
The voltage between the V
must not exceed the minimum output overvoltage shut-
down voltage as indicated in the Feature Specifications
table. This limit includes any increase in voltage due to
remote-sense compensation and output voltage set-
point adjustment (trim). See Figure 24.
If not using the remote-sense feature to regulate the
output at the point of load, then connect SENSE(+) to
V
Figure 24. Effective Circuit Configuration for
O
[V
(+) and SENSE(–) to V
SUPPLY
O
Figure 23. Remote On/Off Implementation
RESISTANCE
(+) – V
CONTACT
V
I
on/off
on/off
+
–
Single-Module Remote-Sense Operation
I
O
I
(–)] – [SENSE(+) – SENSE(–)] ð 0.2 V
V
V
REMOTE
ON/OFF
I
I
(+)
(-)
V
V
I
I
(-)
(+)
SENSE(+)
SENSE(–)
O
V
V
O
(–) at the module.
O
O
(+) and V
(+)
(–)
SENSE(+)
SENSE(–)
V
V
DISTRIBUTION LOSSES
O
O
I
(+)
March 26, 2008
O
(–)
O
CONTACT AND
(–) terminals
Lineage Power
LOAD
LOAD
8-651(C).m
8-720(C).h