JNC350R41-TZ Lineage Power, JNC350R41-TZ Datasheet - Page 8

• Manufacturer Part Number: JNC350R41-TZ
• Description: DC/DC Converters & Regulators 350W 24V-28V 12.5A NegLogic TunableLoop
• Manufacturer: Lineage Power

Specifications of JNC350R41-TZ

• Output Power: 350 W
• Input Voltage Range: 18 V to 36 V
• Input Voltage (nominal): 24 V
• Output Voltage (channel 1): 28 V
• Output Current (channel 1): 12.5 A
• Package / Case Size: Half Brick
• Output Voltage: 28 V
• Product: Isolated
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: CC109158457

Data Sheet
August 9, 2010
Feature Description (continued)
Figure 11. Effective Circuit Configuration for
Single-Module Remote-Sense Operation Output
Voltage.
Output Voltage Programming
Trimming allows the user to increase or decrease the
output voltage set point of a module. The trim resistor
should be positioned close to the module. Certain
restrictions apply to the input voltage lower limit when
trimming the output voltage to the maximum. See
Figure 12 for the allowed input to output range when
using trim. If not using the trim down feature, leave
the TRIM pin open.
Figure 12. Output voltage trim limits vs. Input
Voltage.
Modules without the –T Option
Trim Down – Decrease Output Voltage
Trimming down is accomplished by connecting an
external resistor between the TRIM pin and the
SENSE(-) pin. With an external resistor (R
between the TRIM and SENSE(-) pins, the output
voltage set point (V
The following equation determines the required
external-resistor value to obtain a percentage output
voltage change of %.
For output voltages: 28V
Where,
V
LINEAGE
R

desired
)
( V
t
u
o
V
adj
%
34
32
30
28
26
24
22
20
18
16
14
16


down
= Desired output voltage set point (V).
V
18
o
POWER

,
nom
V
20



100
o


,
nom
%
22
V
Upper Trim Limit
o,adj
desired

24
) decreases (see Figure 13).
2



k
26


Vin (V)
100
Lower Trim Limit
28
30
32
adj-down
34
36
)
18 – 36 Vdc Input; 28Vdc Output; 350W Output
38
JNC350R Power Modules; DC-DC Converters
Figure 13. Circuit Configuration to Decrease
Output Voltage, Standard JNC350R.
Trim Up – Increase Output Voltage
Trimming up is accomplished by connecting external
resistor between the SENSE(+) pin and TRIM
pin.With an external resistor
between the SENSE(+) and TRIM pins
voltage set point (
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 JNC350R.
R

desired
adj
%


up
= Desired output voltage set point (V).
V

desired



V
V
O
,
o
nom
,
. 1

nom
V
V
225

o,
o
ad
(
,
100
nom
j
) increases (see Figure 14).




%
100

(
R
%)
adj-up

)
(
100
connected
,
the output


2 (
%


%)
8



k
