LSM-0.75/16-D12-C Murata Power Solutions Inc, LSM-0.75/16-D12-C Datasheet - Page 4

• Manufacturer Part Number: LSM-0.75/16-D12-C
• Description: DC/DC SM 16A 12-0.75V Non-Iso
• Manufacturer: Murata Power Solutions Inc
• Series: LSMr

Specifications of LSM-0.75/16-D12-C

• Product: Non-Isolated / POL
• Output Power: 12 W
• Input Voltage Range: 10 V to 14 V
• Number Of Outputs: 1
• Output Voltage (channel 1): 0.75 V
• Output Current (channel 1): 16 A
• Output Type: Low Voltage
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

PARD) may be reduced below specifi ed limits with the installation of additional
external output capacitors. Output capacitors function as true fi lter elements
and should be selected for bulk capacitance, low ESR, and appropriate fre-
quency response. Any scope measurements of PARD should be made directly
at the DC/DC output pins with scope probe ground less than 0.5" in length.
located as close to the converters as possible. Temperature variations for all
relevant parameters should be taken into consideration.
tion of your line voltage and source impedance, as well as your particular load
and layout conditions. Our Applications Engineers can recommend potential
solutions and discuss the possibility of our modifying a given device’s internal
fi ltering to meet your specifi c requirements. Contact our Applications Engineer-
ing Group for additional details.
Input Fusing
Most applications and or safety agencies require the installation of fuses at
the inputs of power conversion components. The LSM D12 Series are not
internally fused. Therefore, if input fusing is mandatory, either a normal-blow or
a fast-blow fuse with a value no greater than twice the maximum input current
should be installed within the ungrounded input path to the converter.
slow-blow fuse with a typical value of about twice the maximum input current,
calculated at low line with the converters minimum effi ciency.
Output ripple/noise (also referred to as periodic and random deviations or
All external capacitors should have appropriate voltage ratings and be
The most effective combination of external I/O capacitors will be a func-
As a rule of thumb however, we recommend to use a normal-blow or
+OUTPUT
COMMON
+SENSE
Figure 2. Measuring Input Ripple Current
Figure 3. Measuring Input Ripple Current
C1 = NA
C2 = 22µF TANTALUM
LOAD 2-3 INCHES (51-76mm) FROM MODULE
6
4
3
C1
COPPER STRIP
COPPER STRIP
C2
www.murata-ps.com
SCOPE
R
LOAD
Safety Considerations
LSM D12 SMT's are non-isolated DC/DC converters. In general, all DC/DC's
must be installed, including considerations for I/O voltages and spacing/sepa-
ration requirements, in compliance with relevant safety-agency specifi cations
(usually UL/IEC/EN60950-1).
(safety extra low voltage) requirements, its input must be SELV compliant. If the
output needs to be ELV (extra low voltage), the input must be ELV.
Input Overvoltage and Reverse-Polarity Protection
LSM D12 SMT Series DC/DC's do not incorporate either input overvoltage or
input reverse-polarity protection. Input voltages in excess of the specifi ed
absolute maximum ratings and input polarity reversals of longer than "instan-
taneous" duration can cause permanent damage to these devices.
Start-Up Time
The V
ing input voltage crosses the lower limit of the specifi ed input voltage range
(10 Volts) and the fully loaded output voltage enters and remains within its
specifi ed accuracy band. Actual measured times will vary with input source
impedance, external input capacitance, and the slew rate and fi nal value of the
input voltage as it appears to the converter.
On/Off Control with the nominal input voltage already applied to the converter.
The specifi cation defi nes the interval between the time at which the converter
is turned on and the fully loaded output voltage enters and remains within its
specifi ed accuracy band. See Typical Performance Curves.
Remote Sense
LSM D12 SMT Series DC/DC converters offer an output sense function on pin 6.
The sense function enables point-of-use regulation for overcoming moderate
IR drops in conductors and/or cabling. Since these are non-isolated devices
whose inputs and outputs usually share the same ground plane, sense is
provided only for the +Output.
DC converter’s output. The sense line carries very little current and conse-
quently requires a minimal cross-sectional-area conductor. As such, it is not
a low-impedance point and must be treated with care in layout and cabling.
Sense lines should be run adjacent to signals (preferably ground), and in
cable and/or discrete-wiring applications, twisted-pair or similar techniques
should be used. To prevent high frequency voltage differences between V
and Sense, we recommend installation of a 1000pF capacitor close to the
converter.
the +Output and +Sense pins that do not exceed 10% of V
rent and voltage at the converter's output pins. Use of trim and sense functions
can cause the output voltage to increase, thereby increasing output power
beyond the LSM's specifi ed rating. Therefore:
In particular, for a non-isolated converter's output voltage to meet SELV
The On/Off to V
The remote sense line is part of the feedback control loop regulating the DC/
The sense function is capable of compensating for voltage drops between
Power derating (output current limiting) is based upon maximum output cur-
IN
[V
(V
to V
OUT
OUT
OUT
(+) – Common] – [Sense(+) – Common] ≤ 10%V
at pins) x (I
Non-Isolated, 13-80W SMT DC/DC Converters
Start-Up Time is the interval between the time at which a ramp-
OUT
Technical enquiries email: [e-mail], tel:
Start-Up Time assumes the converter is turned off via the
OUT
LSM-16A D12 Models
) ≤ rated output power
MDC_LSM 16A D12 Models.A05 Page 4 of 12
OUT
OUT
.
[phone]
OUT