LW016AJ Lineage Power, LW016AJ Datasheet - Page 9

• Manufacturer Part Number: LW016AJ
• Manufacturer: Lineage Power

April 2008
Lineage Power
Feature Descriptions
Remote On/Off
Two remote on/off options are available. Positive logic remote on/off turns the module on during a logic-high volt-
age on the REMOTE ON/OFF pin, and off during a logic low. Negative logic, device code suffix “1,” remote on/off
turns the module off during a logic high and on during a logic low.
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
low is V
switch should maintain a logic-low voltage while sinking 1 mA.
During a logic high, the maximum V
current of the switch at V
The module has internal capacitance to reduce noise at the ON/OFF pin. Additional capacitance is not generally
needed and may degrade the start-up characteristics of the module.
Output Voltage Adjustment
Output voltage trim allows the user to increase or decrease the output voltage set point of a module. This is
accomplished by connecting an external resistor between the TRIM pin and either the V
external resistor between the TRIM and V
an external resistor between the TRIM and V
The following equation determines the required external resistor value to obtain an output voltage change of ý%:
LW016BK
LW016CL
LW016AJ
R
R
Device
adj-down
adj-up
on/off
=
= –0.7 V to 1.2 V, during which the module is off. The maximum I
=
-------- - d
Δ%
c
I
-------- - b
Δ%
(–) terminal (V
a
–
3.56
13.8
15.5
a
–
k¾
on/off
k¾
= 6 V is 50 µA.
(continued)
30.1
31.6
8.4
b
on/off
Figure 10. Remote On/Off Implementation
on/off
). The switch can be an open collector or equivalent (see Figure 10). A logic
generated by the power module is 6 V. The maximum allowable leakage
1.19
1.60
1.41
O
c
(+) pins (R
O
(–) pins (R
V
I
on/off
on/off
3.65
14.7
14.7
+
-
d
adj-down
adj-up
V
V
REMOTE
ON/OFF
I
I
(+)
(-)
), the output voltage set point (V
), V
–5% V
O, adj
62.8 k¾
246 k¾
278 k¾
increases.
O
R
adj-down
36 Vdc to 75 Vdc Inputs; 16 W
on/off
during a logic low is 1 mA. The
O
(+) or V
O, adj
+5% V
O
) decreases. With
20.1 k¾
17.3 k¾
13.5 k¾
(–) pins. With an
O
R
adj-up
8-758(C).a
9