YNV12T16-0 POWER ONE, YNV12T16-0 Datasheet - Page 6

• Manufacturer Part Number: YNV12T16-0
• Description: DC/DC Converters & Regulators
• Manufacturer: POWER ONE

Specifications of YNV12T16-0

• Product: Non-Isolated / POL
• Output Power: 88 W
• Input Voltage Range: 9.6 V to 14 V
• Input Voltage (nominal): 12 V
• Number Of Outputs: 1
• Output Current (channel 1): 16 A
• Package / Case Size: SIP
• Output Type: Regulated
• Output Voltage: 0.7525 V to 5.5 V
• Package / Case: SIP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Because the sense lead carries minimal current,
large trace on the end-user board is not required.
However, the sense trace should be located close
to a ground plane to minimize system noise and
insure optimum performance.
When utilizing the remote sense feature, care
must be taken not to exceed the maximum
allowable output power capability of the converter,
equal to the product of the nominal output voltage
and the allowable output current for the given
conditions.
When using remote sense, the output voltage at
the converter can be increased up to 0.5 V above
the nominal rating in order to maintain the required
voltage across the load. Therefore, the designer
must, if necessary, decrease the maximum current
(originally obtained from the derating curves) by
the same percentage to ensure the converter’s
actual output power remains at or below the
maximum allowable output power.
Output Voltage Programming (Pin 9)
The output voltage can be programmed from
0.7525 V to 5.5 V by connecting an external
resistor between the TRIM pin (Pin 9) and the
GND pin (Pin 5); see Fig. C.
A trim resistor, R
can be calculated using the following equation:
where,
ZD-02039 Rev. 3.2, 24-Jun-10
R
R
V
Vin
Vin
T
TRIM
O
RIM
REQ


Fig. B: Remote sense circuit configuration.

Required value of trim resistor [k]
(V
Desired (trimmed) output voltage [V]
O
-
REQ
10
6
ON/OFF
GND
Vin
-
5 .
0.7525)
TRIM
, for a desired output voltage
Nex
(Top View)
Converter
TM
-v

9.6-14 VDC Input; 0.7525-5.5 VDC Programmable @ 16A
Series
1
SENSE
TRIM
GND
Vout
5
[k]
Rw
Rw
Rload
YNV12T16 DC-DC Converter Data Sheet
Page 6 of 28
Note that the tolerance of a trim resistor directly
affects
recommended to use standard 1% or 0.5%
resistors; for tighter tolerance, two resistors in
parallel are recommended rather than one
standard value from Table 1.
The ground pin of the trim resistor should be
connected directly to the converter GND pin
(Pin 5) with no voltage drop in between. Table 1
provides the trim resistor values for popular output
voltages.
The output voltage can also be programmed by an
external voltage source. To make trimming less
sensitive, a series external resistor (Rext) is
recommended between the TRIM pin and the
programming voltage source. The control voltage
can be calculated by the formula:
where,
V
V
Vin
Fig. C: Configuration for programming output voltage.
V
CTRL
CTRL
0-REG
0.7525
1.0
1.2
1.5
1.8
2.0
2.5
3.3
5.0
5.5


[V]
0
Control voltage [V]
7 .
the
Table 1: Trim Resistor Value

www.power-one.com
1 (
6
R
output
ON/OFF
Vin
GND

TRIM
22.46
R
open
41.2
13.0
3.12
1.47
1.21
9.0
7.4
5.0
EXT
[kΩ]
)(V
Nex
(Top View)
Converter
voltage
TM
O
15
-v
-
REQ
Series
Standard Value [kΩ]
-
0.7525)
The Closest
SENSE
tolerance.
TRIM
GND
Vout
41.2
22.6
13.0
9.09
7.32
4.99
3.09
1.47
1.21
5
R
[V]
TRIM
It
Rload
is