YEV09T03 Datasheet, PDF (9/10 Pages) Power-One – 3A DC-DC POL Converter 4.5V to 13.8V Input 0.59V to 5.1V Output

YEV09T03 3A DC-DC POL Converter
4.5V to 13.8V Input  0.59V to 5.1V Output
Data Sheet
provided to protect the converter from catastrophic
failure. Refer to the “Input Fuse Selection for DC/DC
converters” application note on www.power-one.com
for proper selection of the input fuse. Both input
traces and the chassis ground trace (if applicable)
must be capable of conducting a current of 1.5 times
the value of the fuse without opening.
To comply with safety agencies’ requirements, a
recognized fuse must be used in series with the input
line. The fuse must not be placed in the grounded
input line. Abnormal and component failure tests
were conducted with the POL input protected by a
fast-acting 25A fuse. If a fuse rated greater than 25A
is used, additional testing may be required.
The maximum DC voltage between any two pins is
Vin under all operating conditions. In order for the
output of the YEV09T03 POL converter to be
considered as SELV (Safety Extra Low Voltage),
according to all IEC60950 based standards, the input
to the POL needs to be supplied by an isolated
secondary source providing a SELV also.
9. Pin Assignments and Description
Pin
Name
ON/OFF
VIN
GND
VOUT
Pin
Number
1
2
3
4
Pin
Type
I
P
P
P
TRIM
5
I
Buffer
Type
PU
A
Pin Description
Enable
Input Voltage
Power Ground
Output Voltage
Output Voltage Trim
Notes
Pull high to turn ON the POL
Connect a high accuracy resistor between TRIM
and GMD pins to set the output voltage
Legend: I=input, O=output, I/O=input/output, P=power, A=analog, PU=internal pull-up
ZD-01968 Rev 1.1, 25-Mar-09
www.power-one.com
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