YM12S05-G POWER ONE, YM12S05-G Datasheet - Page 6

• Manufacturer Part Number: YM12S05-G
• Description: CONVERTER DC-DC 12V 5A SMD
• Manufacturer: POWER ONE
• Series: Yr
• Type: Point of Load (POL) Non-Isolatedr

Specifications of YM12S05-G

• Output: 0.75 ~ 5.5V
• Number Of Outputs: 1
• Power (watts): 28W
• Mounting Type: Surface Mount
• Voltage - Input: 9.6 ~ 14V
• Package / Case: 5-DIP SMD Module
• 1st Output: 0.75 ~ 5.5 VDC @ 5A
• Size / Dimension: 0.80" L x 0.45" W x 0.25" H (20.3mm x 11.4mm x 6.4mm)
• Power (watts) - Rated: 28W
• Operating Temperature: -40°C ~ 85°C
• Efficiency: 92%
• Approvals: cUL, EN, UL
• Package: 5SMD
• Output Current: 5 A
• Output Voltage: 0.7525 to 5.5 V
• Input Voltage: 12 V
• Output Power: 28 W
• Input Voltage Range: 9.6 V to 14 V
• Output Voltage (channel 1): 0.5 V to 2.75 V
• Output Current (channel 1): 5 A
• Package / Case Size: DIP
• Output Type: Regulated
• Product: Non-Isolated / POL
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• 3rd Output: -
• 2nd Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 179-2365-2

Ground pin of the trim resistor should be connected
directly to the converter GND pin 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
voltage source; the value can be chosen depending
on the required output voltage range [k].
Control voltages with
shown in Table 2.
MCD10132 Rev. 1.1, 21-Jun-10
R
V
V
EXT
CTRL
CTRL
V
V
0.7525
0.7525
0-REG
0-REG



1.0
1.2
1.5
1.8
2.0
2.5
3.3
5.0
5.5
1.0
1.2
1.5
1.8
2.0
2.5
3.3
5.0
5.5
External resistor between TRIM pin and
0
Control voltage [V]
7 .
[V]
[V]

Table 2: Control Voltage [VDC]
a
Table 1: Trim Resistor Value
1 (
V

series
R
CTRL
R
TRIM
41.42
22.46
13.05
EXT
open
9.02
7.42
5.01
3.12
1.47
1.21
0.700
0.684
0.670
0.650
0.630
0.617
0.584
0.530
0.417
0.384
(R
)(V
[kΩ]
EXT
R
O
external
15
-
EXT
REQ
= 0)

-
Standard Value [kΩ]
0.7525)
0 and
9.6-14 VDC Input; 0.7525-5.5 VDC Programmable @ 5A
V
The Closest
CTRL
resistor
41.2
22.6
13.0
9.09
7.50
4.99
3.09
1.47
1.21
(R
-0.097
-0.417
-0.631
-1.164
-2.017
-3.831
-4.364
R
0.700
0.436
0.223
EXT
EXT
= 15K)

[V]
Rext
15K are
Page 6 of 24
is
YM12S05 DC-DC Converter Data Sheet
Protection Features
Input Undervoltage Lockout
Input undervoltage lockout is standard with this
converter. The converter will shut down when the
input voltage drops below a pre-determined voltage;
it will start automatically when Vin returns to a
specified range.
The input voltage must be typically 9.0V for the
converter to turn on. Once the converter has been
turned on, it will shut off when the input voltage
drops below typically 8.8V.
Output Overcurrent Protection (OCP)
The converter is protected against overcurrent and
short circuit conditions. Upon sensing an overcurrent
condition, the converter will enter hiccup mode. Once
over-load or short circuit condition is removed, Vout
will return to nominal value.
Overtemperature Protection (OTP)
The converter will shut down under an over-
temperature
overheating caused by operation outside the thermal
derating curves, or operation in abnormal conditions
such as system fan failure. After the converter has
cooled to a safe operating temperature, it will
automatically restart.
Safety Requirements
The
International safety regulatory requirements per
UL60950 and EN60950. The maximum DC voltage
between any two pins is Vin under all operating
conditions. Therefore, the unit has ELV (extra low
voltage) output; it meets SELV requirements under
the condition that all input voltages are ELV.
The converter is not internally fused. To comply with
safety agencies requirements, a recognized fuse
with a maximum rating of 7.5 Amps must be used in
series with the input line.
Characterization
General Information
The converter has been characterized for many
operational aspects, to include thermal derating
(maximum load current as a function of ambient
temperature and airflow) for vertical and horizontal
mounting,
converter
www.power-one.com
efficiency,
condition
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start-up
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North
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