Data Sheet
March 17, 2011
9-36V ProLynx
TM
5A: Non-isolated DC-DC Power Modules
9 – 36Vdc input; 3Vdc to 18Vdc output; 5A to 2.5A output current
Once the unit goes into thermal shutdown it will then
wait to cool before attempting to restart.
Input Undervoltage Lockout
At input voltages below the input undervoltage lockout
limit, the module operation is disabled. The module will
begin to operate at an input voltage above the
undervoltage lockout turn-on threshold.
By using a ±0.5% tolerance trim resistor with a TC of
±100ppm, a set point tolerance of ±1.5% can be
achieved as specified in the electrical specification.
Remote Sense
The 9-36V ProLynx
TM
power modules have a Remote
Sense feature to minimize the effects of distribution
losses by regulating the voltage between the VS+ and
Vo pin. The voltage between the VS+ pin and Vo pin
should not exceed 0.5V.
Output Voltage Programming
The output voltage of the 9-36V ProLynx module can
be programmed to any voltage from 3Vdc to 18Vdc by
connecting a resistor between the Trim and GND pins of
the module. Certain restrictions apply on the output
voltage set point depending on the input voltage. These
are shown in the Output Voltage vs. Input Voltage Set
Point Area plot in Fig. 35.
Without an external resistor between Trim and GND
pins, the output of the module will be 0.7Vdc. To
calculate the value of the trim resistor,
Rtrim
for a
desired output voltage, use the following equation:
TM
V
IN
(+)
V
O
(+)
VS+
ON/OFF
TRIM
R
trim
GND
LOAD
70
Rtrim
=
k
Ω
(
Vo
−
0.7
)
Rtrim is the external resistor in kΩ, and
Vo
is the desired
output voltage.
40
35
Figure 36. Circuit configuration for programming
output voltage using an external resistor.
Voltage Margining
Output voltage margining can be implemented in the 9-
TM
36V ProLynx modules by connecting a resistor,
R
margin-up
, from the Trim pin to the ground pin for
margining-up the output voltage and by connecting a
resistor, R
margin-down
, from the Trim pin to output pin for
margining-down. Figure 37 shows the circuit
configuration for output voltage margining. The POL
Programming Tool, available at
www.lineagepower.com
under the Design Tools section, also calculates the
values of R
margin-up
and R
margin-down
for a specific output
voltage and % margin Please consult your local Lineage
Power technical representative for additional details.
Vo
Input Voltage (v)
30
25
20
15
10
5
2
4
6
Upper Limit
Lower Limit
Output Voltage (V)
8
10
12
14
16
18
Figure 35. Output Voltage vs. Input Voltage Set
Point Area plot showing limits where the output
voltage can be set for different input voltages.
Table 1 provides Rtrim values required for some
common output voltages.
Rmargin-down
MODULE
Q2
Trim
Rmargin-up
Rtrim
Table 1
V
O, set
(V)
3.3
5
6
9
12
15
18
LINEAGE
POWER
Rtrim (KΩ)
26.92
16.27
13.20
8.43
6.19
4.89
4.04
Q1
GND
Figure 37. Circuit Configuration for margining
Output voltage
13
LINEAGEPOWER [ LINEAGE POWER CORPORATION ]
