JNW350R631-18Z Lineage Power, JNW350R631-18Z Datasheet - Page 9

• Manufacturer Part Number: JNW350R631-18Z
• Description: DC/DC Converters & Regulators 36-75V 28Vout 12.5A Neg TH Pin 3.68mm
• Manufacturer: Lineage Power

Specifications of JNW350R631-18Z

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: CC109161931

Data Sheet
August 9, 2010
Feature Description (continued)
The following equation determines the required
external-resistor value to obtain a percentage output
voltage change of %.
For output voltages: 28V
Where,
V
Figure 14. Circuit Configuration to Increase
Output Voltage, Standard JNW350R.
Examples:
To trim down the output of a nominal 28V module to
16.8V
∆% = 40
R
To trim up the output of a nominal 28V module to
30.8V
Δ% = 10
R
Modules with the –T Option
LINEAGE
R


R

R
desired
adj - down
adj - up
adj
adj
%
%
adj
%

up





up
down

= Desired output voltage set point (V).
= 239.4 kΩ
V
28


 
30
= 0.5 k
28
desired
POWER



V

8 .
. 1
V

V
28
O



225
V
28

(
100
,
100
o
nom
16
40
V
,
. 1


V
nom

V
225
28

8 .

10
o

10
(
V
,
100
V
nom
2
)








k
100


(
100
%

100
100

%)

10
2 (


(
10
100
)

 
k



2 (
%


%)
36 – 75 Vdc Input; 28Vdc Output; 350W Output
JNW350R Power Modules; DC-DC Converters



k

Trim Down – Decrease Output Voltage
With an external resistor (R
and SENSE(+) pins, the output voltage set point
(V
equation determines the required external-resistor
value to obtain a percentage output voltage change of
%.
For output voltages: 28V
Where,
V
Figure 15. Circuit Configuration to Decrease
Output Voltage, JNW350R-T option.
Trim Up – Increase Output Voltage
With an external resistor
the SENSE(-) and TRIM pins
point (
The following equation determines the required
external-resistor value to obtain a percentage output
voltage change of %.
For output voltages: 28V
Where,
V
R

R

desired
desired
o,adj
adj
%
adj
%


) decreases (see Figure 15). The following


V
up
down
= Desired output voltage set point (V).
= Desired output voltage set point (V).
o,
V
V

ad
o
desired
j
) increases (see Figure 16).

,



nom
488



V
V

10631
o
o

,
%
,

nom
nom
5 .
V

V
desired
%
o



,
k
nom
.

45
(
R



adj-down
adj-up
100
100
111
,
the output voltage set
)
2 .
) between the TRIM
connected between



k

9