GE Industrial Solutions Naos Raptor 6A - Manual (Page 15)

Data Sheet
December 6, 2010 Naos Raptor 6A: Non-isolated DC-DC Power Modules
4.5 – 14Vdc input; 0.59Vdc to 6Vdc Output; 6A output current
LINEAGE POWER 15
Table 2
V
O, set
(V) Rtrim (KΩ)
0.59 Open
1.0 2.89
1.2 1.941
1.5 1.3
1.8 0.978
2.5 0.619
3.3 0.436
5.0 0.268
6.0 0.219
By using a ±0.5% tolerance trim resistor with a TC of
±25ppm, a set point tolerance of ±1.5% can be achieved
as specified in the electrical specification. The POL
Programming Tool available at
www.lineagepower.com
under the Design Tools section, helps determine the
required trim resistor needed for a specific output
voltage.
V
O
(+)
TRIM
GND
R
trim
LOAD
V
IN
(+)
ON/OFF
Vout
Figure 50. Circuit configuration for programming
output voltage using an external resistor.
Voltage Margining
Output voltage margining can be implemented in the
Naos Raptor 6A 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 51 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.