YS12S16 POWER ONE, YS12S16 Datasheet - Page 6

• Manufacturer Part Number: YS12S16
• Description: DC/DC Converters & Regulators
• Manufacturer: POWER ONE
• Type: Commercial, Industrialr

Specifications of YS12S16

• 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: 33.02 mm x 13.46 mm x 7.98 mm
• Output Type: Regulated
• Output Voltage: 0.7525 V to 5.5 V
• Brand/series: Y Series
• Configuration: Open-Frame
• Mounting Type: Surface Mount
• Operation: Switching
• Output: 0.7525 to 5.5 VDC @ 16 A
• Power, Output: 88 W
• Primary Type: DC-DC Converter
• Special Features: Remote On/Off, Remote Output Sense
• Voltage, Input: 9.6 to 14 VDC
• Voltage, Output: 0.7525 to 5.5 VDC
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Because the sense lead carries minimal current,
large trace on the end-user board are not required.
However, 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 3)
The output voltage can be programmed from
0.7525 V to 5.5 V by connecting an external resistor
between TRIM pin (Pin 3) and GND pin (Pin 5); see
Fig. C.
A trim resistor, R
can be calculated using the following equation:
where,
MCD10207 Rev. 1.0, 24-Jun-10
Vin
Vin
R
R
V
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
ON/OFF
GND
-
Vin
5 .
0.7525)
TRIM
, for a desired output voltage
(Top View)
Converter
Y-Series

1
9.6-14 VDC Input; 0.7525-5.5 VDC Programmable @ 16A
SENSE
TRIM
Vout
[k]
Rw
Rw
Rload
Page 6 of 27
YS12S16 DC-DC Converter Data Sheet
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.
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 be also programmed by
external voltage source. To make trimming less
sensitive,
recommended between TRIM pin and programming
voltage source. Control Voltage can be calculated by
the formula:
where,
Vin
V
V
CTRL
CTRL
Fig. C: Configuration for programming output voltage.
V
0-REG
0.7525


1.0
1.2
1.5
1.8
2.0
2.5
3.3
5.0
5.5
0
Control voltage [V]
7 .
the
[V]
www.power-one.com

a
Table 1: Trim Resistor Value
1 (
ON/OFF
GND
Vin

output
series
R
R
TRIM
41.42
22.46
13.05
EXT
open
9.02
7.42
5.01
3.12
1.47
1.21
)(V
[kΩ]
(Top View)
Converter
Y-Series
O
external
15
voltage
-
REQ
-
Standard Value [kΩ]
0.7525)
The Closest
SENSE
resistor
tolerance.
TRIM
Vout
41.2
22.6
13.0
9.09
7.50
4.99
3.09
1.47
1.21
[V]
Rext
R
TRIM
It
Rload
is
is