Data Sheet
9-36V ProLynxTM 5A: Non-isolated DC-DC Power Modules
March 17, 2011
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.
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.
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.
Remote Sense
The 9-36V ProLynxTM 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 ProLynxTM 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.
VIN(+)
VO(+)
VS+
ON/OFF
LOAD
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:
TRIM
Rtrim
GND
70
Vo − 0.7
Rtrim =
kΩ
Figure 36. Circuit configuration for programming
output voltage using an external resistor.
(
)
Rtrim is the external resistor in kΩ, and Vo is the desired
output voltage.
Voltage Margining
40
Output voltage margining can be implemented in the 9-
36V ProLynxTM modules by connecting a resistor,
35
R
margin-up, from the Trim pin to the ground pin for
30
Upper Limit
margining-up the output voltage and by connecting a
resistor, Rmargin-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 Rmargin-up and Rmargin-down for a specific output
voltage and % margin Please consult your local Lineage
Power technical representative for additional details.
25
20
15
Lower Limit
10
5
2
4
6
8
10
12
14
16
18
OutputVoltage (V)
Vo
Rmargin-down
Figure 35. Output Voltage vs. Input Voltage Set
Point Area plot showing limits where the output
voltage can be set for different input voltages.
MODULE
Q2
Table 1 provides Rtrim values required for some
common output voltages.
Trim
Table 1
Rmargin-up
VO, set (V)
Rtrim (KΩ)
26.92
16.27
13.20
8.43
Rtrim
3.3
5
6
Q1
GND
9
12
15
18
6.19
4.89
4.04
Figure 37. Circuit Configuration for margining
Output voltage
LINEAGE POWER
13
LINEAGEPOWER [ LINEAGE POWER CORPORATION ]
