LSN-1.8/16-D12 [MURATA]
Single Output, Non-Isolated, 12VIN, 0.75-5VOUT 16 Amp in DC/DCs SIP Packages; 单路输出，非隔离， 12VIN ， 0.75-5VOUT 16安培直流/ DCS SIP封装
| 型号： | LSN-1.8/16-D12 |
| 厂家： | 
muRata |
| 描述： | Single Output, Non-Isolated, 12VIN, 0.75-5VOUT 16 Amp in DC/DCs SIP Packages |
| 文件： | 总13页 (文件大小：325K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LSN-16A D12 Models
Single Output, Non-Isolated, 12VIN, 0.75-5VOUT
16 Amp in DC/DCs SIP Packages
Typical Units
FEATURES
PRODUCT OVERVIEW
ꢀ
Step-down buck regulators for new
distributed 12V power architectures
LSN Series D12 SIP's (single-in-line pack-
ages) are ideal building blocks for emerging,
on-board power-distribution schemes in
which isolated 12V buses deliver power to
quency, buck topology that also delivers: high
efficiency (96% for 5VOUT models), low noise
(30 to 55mVp-p typ.), tight line/load regulation
( 0.1%/ 0.25% max.), quick step response
ꢀ
ꢀ
ꢀ
ꢀ
12V input (10-14V range)
0.75/1/1.2/1.5/1.8/2.5/3.3/5VOUT @16A
Voltage-selectable "T" version
any number of non-isolated, step-down buck (100μsec), stable no-load operation, and no
regulators. LSN D12 DC/DC's accept a 12V
input (10V to 14V input range) and convert
it, with the highest efficiency in the smallest
space, to a 0.75, 1, 1.2, 1.5, 1.8, 2.5, 3.3 or
5 Volt output fully rated at 16 Amps.
output reverse conduction.
Non-isolated, fixed-frequency,
synchronous-rectifier topology
The fully functional LSN’s feature output
overcurrent detection, continuous short-circuit
protection, an output-voltage trim function, a
remote on/off control pin (pull high to disable),
thermal shutdown and a sense pin. High
efficiency enables the LSN D12s to deliver
rated output currents of 16 Amps at ambient
temperatures to +68°C with 200 lfm air flow.
If your new system boards call for three or
more supply voltages, check out the econom-
ics of on-board 12V distributed power. If you
don’t need to pay for multiple isolation barri-
ers, DATEL's non-isolated LSN D12 SIP's will
save you money.
ꢀ
Outstanding performance:
v
1.25% setpoint accuracy
LSN D12's are ideal point-of-use/load
v Efficiencies to 96% @ 16 Amps
v Noise as low as 30mVp-p
v Stable no-load operation
v Trimmable output voltage
power processors. They typically require no
external components. Their vertical-mount
packages occupy a mere 0.72 square inches
(4.6 sq. cm), and reversed pin vertical mount
allows mounting to meet competitor’s keep
out area. Horizontal-mount packages (“H”
suffix) are only 0.37 inches (9.4mm) high.
The LSN's best-in-class power density is
achieved with a fully synchronous, fixed-fre-
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
Remote on/off control and sense
Thermal shutdown
No derating to +68°C with 200 lfm
UL/IEC/EN60950-1 certified
EMC compliant
+OUTPUT
(1,2,4)
+INPUT
(7,8)
10.57
+SENSE
66μF
100μF
330μF
(3)
COMMON
(5)
COMMON
(6)
CURRENT
SENSE
VCC
PWM
ON/OFF
CONTROL
(11)
REFERENCE &
ERROR AMP
CONTROLLER
V
TRIM
(10)
OUT
Typical topology is shown
Figure 1. Simplified Schematic
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
MDC_LSN 16A D12 Models.B02 Page 1 of 13
LSN-16A D12 Models
Single Output, Non-Isolated, 12VIN, 0.75-5VOUT
16 Amp in DC/DCs SIP Packages
~
Performance Specifications and Ordering Guide
ORDERING GUIDE
Output
R/N (mVp-p)
Input
Efficiency
Full Load
Package
(Case,
Pinout)
Max.
Regulation (Max.)
½ Load
VOUT
IOUT
VIN Nom. Range
IIN
Power
Root Model
(Volts) (Amps) (Watts)
Typ.
45
45
45
30
30
30
35
40
50
55
Max.
Line
0.1ꢀ
0.1ꢀ
0.1ꢀ
0.1ꢀ
0.1ꢀ
0.1ꢀ
0.1ꢀ
0.1ꢀ
0.1ꢀ
0.1ꢀ
Load
(Volts)
(Volts) (mA/A)
Min.
80ꢀ
Typ.
82.5ꢀ
86ꢀ
Typ.
86ꢀ
86ꢀ
90ꢀ
91ꢀ
92ꢀ
NA
LSN-0.75/16-D12
LSN-1/16-D12
0.75
1
16
16
16
16
16
16
16
16
16
16
12
16
65
65
60
45
45
45
50
55
75
75
0.25ꢀ
0.25ꢀ
0.25ꢀ
0.25ꢀ
0.25ꢀ
0.25ꢀ
0.25ꢀ
0.25ꢀ
0.25ꢀ
0.25ꢀ
12
10-14
10-14
10-14
10-14
10-14
10-14
10-14
10-14
10-14
10-14
39/1.21
39/1.45
45/1.70
54/2.09
53/2.49
59/2.93
60/3.38
69/4.37
75/6.52
80/7.0
B8/B8x, P59
B8/B8x, P59
B8/B8x, P59
B8/B8x, P59
B8/B8x, P59
B8/B8x, P59
B8/B8x, P59
B8/B8x, P59
B8/B8x, P59
B8/B8x, P59
12
83ꢀ
LSN-1.2/16-D12
LSN-1.5/16-D12
LSN-1.8/16-D12
LSN-2/16-D12
LSN-2.5/16-D12
LSN-3.3/16-D12
LSN-5/16-D12
1.2
1.5
1.8
2
19.2
24
12
85ꢀ
89.5ꢀ
88ꢀ
12
86ꢀ
28.8
32
12
87ꢀ
90.5ꢀ
91ꢀ
12
88ꢀ
2.5
3.3
5
40
12
90.5ꢀ
92.5ꢀ
94ꢀ
92.5ꢀ
94.5ꢀ
96ꢀ
94ꢀ
96ꢀ
95.5ꢀ
96.5ꢀ
52.8
80
12
12
LSN-T/16-D12
0.75-5
80
12
95ꢀ
95.5ꢀ
~ Typical at TA = +25°C under nominal line voltage and full-load conditions, unless noted. All models
are tested and specified with external 22μF tantalum input and output capacitors. These capacitors
are necessary to accommodate our test equipment and may not be required to achieve specified
performance in your applications. See I/O Filtering and Noise Reduction.
Ripple/Noise (R/N) is tested/specified over a 20MHz bandwidth and may be reduced with external
filtering. See I/O Filtering and Noise Reduction for details.
These devices have no minimum-load requirements and will regulate under no-load conditions.
Regulation specifications describe the output-voltage deviation as the line voltage or load is varied
from its nominal/midpoint value to either extreme.
Nominal line voltage, no-load/full-load conditions.
Contact MPS for availablilty.
LSN-T16-D12 efficiencies are shown at 5V out.
These are incomplete model numbers. Please refer to the Part Number Structure when ordering.
PART NUMBER STRUCTURE
L SN - 1.8 / 16 - D12 H J
C
-
Output
Configuration:
L = Unipolar
RoHS-6 compliant*
J Suffix:
Low Voltage
Reversed Pin
Vertical Mount
Non-Isolated SIP
H Suffix:
Horizontal Mount
Nominal Output Voltage:
0.75, 1, 1.2, 1.5, 1.8, 2.5, 3.3
or 5 Volts or "T" selectable voltage
Input Voltage Range:
D12 = 10-14 Volts
(12V nominal)
Maximum Rated Output
Current in Amps
* Contact MPS (DATEL) for availability.
www.murata-ps.com
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
MDC_LSN 16A D12 Models.B02 Page 2 of 13
LSN-16A D12 Models
Single Output, Non-Isolated, 12VIN, 0.75-5VOUT
16 Amp in DC/DCs SIP Packages
MECHANICAL SPECIFICATIONS
ꢉꢊꢂꢅ -!8ꢊ
ꢋꢈꢊꢃꢌ
ꢉꢊꢂꢅ -!8ꢊ
ꢋꢈꢊꢃꢉꢌ
ꢁꢊꢉꢉ
ꢋꢄꢉꢊꢇꢉꢌ
ꢁꢊꢉꢉ
ꢋꢄꢉꢊꢇꢉꢌ
ꢉꢊꢁꢂ
ꢋꢄꢊꢇꢃꢌ
ꢉꢊꢁꢂ
ꢋꢄꢊꢇꢃꢌ
-!8ꢊ
)3/,!4).'
0!$
ꢉꢊꢉꢄ
ꢉꢊꢀꢅ
ꢋꢃꢊꢂꢁꢌ
ꢉꢊꢉꢄ
ꢋꢀꢊꢁꢅꢌ
ꢉꢊꢄꢉ
ꢋꢀꢁꢊꢅꢌ
ꢋꢀꢊꢁꢅꢌ
ꢉꢊꢄꢉ
ꢀ
ꢁ
ꢂ
ꢃ ꢄ
ꢆ
ꢅ ꢇ ꢈ ꢀꢉꢀꢀ
ꢋꢀꢁꢊꢅꢌ
ꢀ
ꢁ
ꢂ
ꢃ ꢄ
ꢆ
ꢅ ꢇ ꢈ ꢀꢉꢀꢀ
ꢉꢊꢀꢂ
ꢋꢂꢊꢂꢉ
-).ꢊ
ꢉꢊꢉꢂꢉ Òꢉꢊꢉꢉꢀ $)!ꢊ
ꢋꢉꢊꢅꢆꢁ Òꢉꢊꢉꢁꢄꢌ
ꢉꢊꢉꢄ
ꢋꢀꢊꢁꢅꢌ
ꢉꢊꢁꢄ
ꢋꢆꢊꢂꢄꢌ
ꢉꢊꢉꢂꢉ Òꢉꢊꢉꢉꢀ $)!ꢊ
ꢋꢉꢊꢅꢆꢁ Òꢉꢊꢉꢁꢄꢌ
ꢉꢊꢉꢄ
ꢋꢀꢊꢁꢅꢌ
ꢀꢊꢉꢉꢉ
ꢋꢁꢄꢊꢃꢉꢌ
ꢉꢊꢂꢆꢉ
ꢋꢈꢊꢀꢃꢌ
ꢉꢊꢃꢉꢉ
ꢋꢀꢉꢊꢀꢆꢌ
ꢉꢊꢄꢉꢉ
ꢋꢀꢁꢊꢅꢉꢌ
ꢉꢊꢀꢀꢉ
ꢋꢁꢊꢅꢈꢌ
ꢀꢊꢉꢉꢉ
ꢋꢁꢄꢊꢃꢉꢌ
ꢉꢊꢃꢉꢉ
ꢋꢀꢉꢊꢀꢆꢌ
ꢉꢊꢄꢉꢉ
ꢋꢀꢁꢊꢅꢉꢌ
ꢃ %1ꢊ 3 ꢊ
ꢉꢊꢀꢉꢉ ꢋꢁꢊꢄꢃꢌ
ꢄ %1ꢊ 3 ꢊ
ꢉꢊꢀꢉꢉ ꢋꢁꢊꢄꢃꢌ
ꢉꢊꢉꢅ
ꢋꢀꢊꢇꢌ
ꢃ %1ꢊ 3 ꢊ
ꢉꢊꢀꢉꢉ ꢋꢁꢊꢄꢃꢌ
ꢄ %1ꢊ 3 ꢊ
ꢉꢊꢀꢉꢉ ꢋꢁꢊꢄꢃꢌ
ꢉꢊꢄꢆ
ꢉꢊꢄꢂ
ꢋꢀꢃꢊꢁꢁꢌ
ꢋꢀꢂꢊꢃꢆꢌ
Case B8A
Horizontal Mounting
ꢉꢊꢂꢆ
ꢋꢈꢊꢀꢄꢌ
Case B8
Vertical Mounting
(Standard)
,!9/54 0!44%2.
4/0 6)%7
ꢉꢊꢄꢉ
ꢋꢀꢁꢊꢅꢌ
ꢉꢊꢃꢄ
ꢋꢀꢀꢊꢃꢂꢌ
ꢉꢊꢁꢅ
ꢋꢆꢊꢇꢆꢌ
,!9/54 0!44%2.
4/0 6)%7
2%#/--%.$%$
#/00%2 0!$
/. 0#" ꢋꢉꢊꢄꢄ 31ꢊ ).ꢊꢌ
ꢉꢊꢃꢁ -!8ꢊ
ꢋꢀꢉꢊꢆꢅꢌ
Dimensions in inches (mm)
ꢁꢊꢉꢉ
ꢋꢄꢉꢊꢇꢉꢌ
ꢉꢊꢁꢂ
ꢋꢄꢊꢇꢃꢌ
ꢉꢊꢀꢅ
ꢋꢃꢊꢂꢁꢌ
ꢉꢊꢉꢄ
ꢋꢀꢊꢁꢅꢌ
ꢉꢊꢄꢉ
ꢋꢀꢁꢊꢅꢌ
ꢀ
ꢁ
ꢂ
ꢃ ꢄ
ꢆ ꢅ ꢇ ꢈ ꢀꢉꢀꢀ
I/O Connections
ꢉꢊꢉꢅ
ꢋꢀꢊꢇꢌ
ꢉꢊꢉꢂꢉ Òꢉꢊꢉꢉꢀ $)!ꢊ
ꢋꢉꢊꢅꢆꢁ Òꢉꢊꢉꢁꢄꢌ
ꢉꢊꢉꢄ
ꢋꢀꢊꢁꢅꢌ
Pin
Function P59
+Output
Pin
Function P59 Pin
Function P59
No Pin
1
5
Common
Common
+Input
9
ꢉꢊꢀꢂ
ꢋꢂꢊꢂꢌ
ꢀꢊꢉꢉꢉ
ꢋꢁꢄꢊꢃꢉꢌ
ꢉꢊꢃꢉꢉ
ꢋꢀꢉꢊꢀꢆꢌ
ꢉꢊꢄꢉꢉ
ꢋꢀꢁꢊꢅꢉꢌ
2
3
4
+Output
6
7
8
10
11
VOUT Trim
ꢃ %1ꢊ 3 ꢊ
ꢉꢊꢀꢉꢉ ꢋꢁꢊꢄꢃꢌ
ꢄ %1ꢊ 3 ꢊ
ꢉꢊꢀꢉꢉ ꢋꢁꢊꢄꢃꢌ
+Sense
On/Off Control
+Output
+Input
Case B8B
Reverse Pin
Vertical Mounting
(Tyco-compatible)
,!9/54 0!44%2.
4/0 6)%7
ꢉꢊꢃꢁ
ꢋꢀꢉꢊꢆꢅꢌ
ꢉꢊꢂꢆ
ꢋꢈꢊꢀꢃꢌ
www.murata-ps.com
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
MDC_LSN 16A D12 Models.B02 Page 3 of 13
LSN-16A D12 Models
Single Output, Non-Isolated, 12VIN, 0.75-5VOUT
16 Amp in DC/DCs SIP Packages
Performance/Functional Specifications
Typical @ TA = +25°C under nominal line voltage and full-load conditions unless noted. ~
Physical
Input
Outline Dimensions
See Mechanical Specifications
Input Voltage Range
10-14 Volts (12V nominal)
Pin Dimensions/Material
0.03" (0.76mm) round pins with tin plate
over copper alloy
Input Current:
Normal Operating Conditions
Standby/Off Mode
See Ordering Guide
5.7mA
Weight
0.3 ounces (9g)
UL94V-0
Output Short-Circuit Condition
30-60mA
Flammability Rating
EMI Conducted and Radiated
Input Reflected Ripple Current
Input Filter Type
30-100mAp-p
Capacitive
9 Volts
FCC Part 15, EN55022 may require
external filter
Start-Up Voltage
Safety
UL/cUL 60950-1, CSA-C22.2 No.234
IEC/EN 60950-1
Overvoltage Protection
Reverse-Polarity Protection
Undervoltage Shutdown
No-load Input Current
None
None
~ All models are tested and specified with external 22μF tantalum input and output capacitors.
These capacitors are necessary to accommodate our test equipment and may not be required
to achieve specified performance in your applications. All models are stable and regulate within
spec under no-load conditions.
8 Volts
50-80mA
Remote On/Off Control
–Negative Logic
Input Ripple Current is tested and specified over a 5-20MHz bandwidth. Input filtering is
CIN = 200μF, CBUS = 1000μF, LBUS = 1μH.
ON = no connection or open
(internal pull down), 0 to +0.4V
OFF = +2.8V to +VIN or pulled high
Current limit inception is given at either cold start-up or after warm-up.
Mean Time Before Failure is calculated using the Telcordia (Bellcore) SR-332 Method 1, Case 3,
ground fixed conditions, TCASE = +25°C, full load, natural convection, +67°C max. PCB temp.
Remote Control On/Off Current
3mA maximum
The On/Off Control (pin 11) may be driven with open-collector logic or by applying appropriate
external voltages which are referenced to Common, pins 5 and 6.
Output
Short circuit shutdown begins when the output voltage degrades approximately 2ꢀ from the
selected setting.
Voltage Output Accuracy (50ꢀ load)
1.25ꢀ maximum
No minimum load
~
Minimum Loading
Maximum Output Power
See Ordering Guide
Absolute Maximum Ratings
VOUT x IOUT must not exceed max. power
Input Voltage:
Maximum Capacitive Loading
2,000μF (low ESR, OSCON) or
10,000μF (electrolytic)
Continuous or transient
14Vdc maximum
+VIN
On/Off Control (Pin 11)
VOUT Trim Range
10ꢀ
Input Reverse-Polarity Protection
Output Overvoltage Protection
Output Curren
None
Sense Input Range
Ripple/Noise (20 MHz bandwidth)
Total Accuracy
+10ꢀ of VOUT
None
See Ordering Guide
3ꢀ over line, load and temperature
See Ordering Guide
Current limited. Devices can
withstand sustained output short
circuits without damage.
Efficiency
Overcurrent Detection and
Short Circuit Protection
Current-limiting Detection
Short Circuit Detection
Storage Temperature
–55 to +125°C
Lead Temperature (soldering, 10 sec.)
+300°C, 10 seconds maximum.
22-32 Amps, model dependent
98ꢀ of VOUT setting
Short Circuit Protection Method
Hiccup with autorecovery
See Technical Notes
These are stress ratings. Exposure of devices to any of these conditions may adversely
affect long-term reliability. Proper operation under conditions other than those listed in the
Performance/Functional Specifications Table is not implied.
Short Circuit Current
Short Circuit Duration
Temperature Coefficient
270-600mA (model dependent)
Continuous, output shorted to ground
0.02ꢀ per °C
Dynamic Characteristics
Return Current Paths
Transient Response
(50 to 100ꢀ load step to 2ꢀ of Vout) 50μsec typical, 100μsec maximum
The LSN D12 SIP’s are non-isolated DC/DC converters. Their two Common
pins (pins 5 and 6) are connected to each other internally (see Figure 1). To
the extent possible (with the intent of minimizing ground loops), input return
current should be directed through pin 6 (also referred to as –Input or Input
Return), and output return current should be directed through pin 5 (also
referred to as –Output or Output Return). Any on/off control signals applied to
pin 11 (On/Off Control) should be referenced to Common (specifically pin 6).
Start-Up Time On/Off to VOUT
20msec for VOUT = nominal
Switching Frequency
230-370kHz (model dependent)
Environmental
Calculated MTBF
TBD Hours
Operating Temperature: (Ambient)
No derating, vertical mount
With derating
–40 to +53°C, natural convection
See derating curves
I/O Filtering and Noise Reduction
All models in the LSN D12 Series are tested and specified with external 22μF
tantalum input and output capacitors. These capacitors are necessary to
accommodate our test equipment and may not be required to achieve desired
performance in your application. The LSN D12's are designed with high-quality,
Storage Temperature Range
Thermal Protection/Shutdown
Density Altitude
–55 to +125°C
115°C
0 to 10,000 feet
10ꢀ to 90ꢀ, non-condensing
Relative Humidity
www.murata-ps.com
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
MDC_LSN 16A D12 Models.B02 Page 4 of 13
LSN-16A D12 Models
Single Output, Non-Isolated, 12VIN, 0.75-5VOUT
16 Amp in DC/DCs SIP Packages
high-performance internal I/O caps, and will operate within spec in most appli-
cations with no additional external components.
In particular, for a non-isolated converter's output voltage to meet SELV
(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.
In particular, the LSN D12's input capacitors are specified for low ESR and
are fully rated to handle the units' input ripple currents. Similarly, the internal
output capacitors are specified for low ESR and full-range frequency response.
As shown in the Performance Curves, removal of the external 22μF tantalum
output caps has minimal effect on output noise.
Input Overvoltage and Reverse-Polarity Protection
LSN D12 SIP Series DC/DC’s do not incorporate either input overvoltage or
input reverse-polarity protection. Input voltages in excess of the specified
absolute maximum ratings and input polarity reversals of longer than “instan-
taneous” duration can cause permanent damage to these devices.
In critical applications, input/output ripple/noise may be further reduced using
filtering techniques, the simplest being the installation of external I/O caps.
Start-Up Time
The VIN to VOUT Start-Up Time is the interval between the time at which a ramp-
ing input voltage crosses the lower limit of the specified input voltage range
(10 Volts) and the fully loaded output voltage enters and remains within its
specified accuracy band. Actual measured times will vary with input source
impedance, external input capacitance, and the slew rate and final value of the
input voltage as it appears to the converter.
External input capacitors serve primarily as energy-storage devices. They
minimize high-frequency variations in input voltage (usually caused by IR drops
in conductors leading to the DC/DC) as the switching converter draws pulses of
current. Input capacitors should be selected for bulk capacitance (at appropri-
ate frequencies), low ESR, and high rms-ripple-current ratings. The switching
nature of modern DC/DC's requires that the dc input voltage source have low
ac impedance at the frequencies of interest. Highly inductive source imped-
ances can greatly affect system stability. Your specific system configuration
may necessitate additional considerations.
The On/Off to VOUT Start-Up Time assumes the converter is turned off via the
On/Off Control with the nominal input voltage already applied to the converter.
The specification defines the interval between the time at which the converter
is turned on and the fully loaded output voltage enters and remains within its
specified accuracy band. See Typical Performance Curves.
Output ripple/noise (also referred to as periodic and random deviations or
PARD) may be reduced below specified limits with the installation of additional
external output capacitors. Output capacitors function as true filter 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.
Remote Sense
LSN D12 SIP Series DC/DC converters offer an output sense function on pin 3.
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.
All external capacitors should have appropriate voltage ratings and be
located as close to the converters as possible. Temperature variations for all
relevant parameters should be taken into consideration.
The remote sense line is part of the feedback control loop regulating the
DC/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 VOUT and Sense,
we recommend installation of a 1000pF capacitor close to the converter.
The most effective combination of external I/O capacitors will be a func-
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
filtering to meet your specific requirements. Contact our Applications Engineer-
ing Group for additional details.
Input Fusing
The sense function is capable of compensating for voltage drops between
the +Output and +Sense pins that do not exceed 10% of VOUT.
Most applications and or safety agencies require the installation of fuses at the
inputs of power conversion components. LSN D12 Series DC/DC converters are
not internally fused. Therefore, if input fusing is mandatory, either a normal-
blow or a slow-blow fuse with a value no greater than 20 Amps should be
installed within the ungrounded input path to the converter.
[VOUT(+) – Common] – [Sense(+) – Common] b 10%VOUT
Power derating (output current limiting) is based upon maximum output cur-
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 LSN's specified rating. Therefore:
As a rule of thumb however, we recommend to use a normal-blow or
slow-blow fuse with a typical value of about twice the maximum input current,
calculated at low line with the converters minimum efficiency.
(VOUT at pins) x (IOUT) b rated output power
Safety Considerations
The internal 10.57 resistor between +Sense and +Output (see Figure 1)
serves to protect the sense function by limiting the output current flowing
through the sense line if the main output is disconnected. It also prevents
output voltage runaway if the sense connection is disconnected.
LSN D12 SIP's are non-isolated DC/DC converters. In general, all DC/DC’s must
be installed, including considerations for I/O voltages and spacing/separation
requirements, in compliance with relevant safety-agency specifications (usually
UL/IEC/EN60950-1).
Note: Connect the +Sense pin (pin 3) to +Output (pin 4) at the DC/DC
converter pins, if the sense function is not used for remote regulation.
www.murata-ps.com
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
MDC_LSN 16A D12 Models.B02 Page 5 of 13
LSN-16A D12 Models
Single Output, Non-Isolated, 12VIN, 0.75-5VOUT
16 Amp in DC/DCs SIP Packages
On/Off Control and Power-up Sequencing
Output Overcurrent Detection
The On/Off Control pin may be used for remote on/off operation. LSN D12 SIP
Series DC/DC's are designed so they are enabled when the control pin is left
open (internal pull-down to Common) and disabled when the control pin is
pulled high (+2.8V to +VIN), as shown in Figure 2 and 2a.
Overloading the output of a power converter for an extended period of time will
invariably cause internal component temperatures to exceed their maximum
ratings and eventually lead to component failure. High-current-carrying com-
ponents such as inductors, FET's and diodes are at the highest risk. LSN D12
SIP Series DC/DC converters incorporate an output overcurrent detection and
shutdown function that serves to protect both the power converter and its load.
+INPUT
If the output current exceeds it maximum rating by typically 60% (24 Amps)
or if the output voltage drops to less than 98% of it original value, the LSN
D12's internal overcurrent-detection circuitry immediately turns off the con-
verter, which then goes into a "hiccup" mode. While hiccupping, the converter
will continuously attempt to restart itself, go into overcurrent, and then shut
down. Under these conditions, the average output current will be approximately
400mA, and the average input current will be approximately 40mA. Once the
output short is removed, the converter will automatically restart itself.
SHUTDOWN
4.12k7
SIGNAL
GROUND
ON/OFF
CONTROL
15.4k7
CONTROLLER
POWER
COMMON
Output Voltage Trimming
Figure 2. Driving the On/Off Control Pin with an
External Open-Collector Drive Circuit
For all models except "T" versions. See "T" Trimming.
Allowable trim ranges for each model in the LSN D12 SIP Series are 10%.
Trimming is accomplished with either a trimpot or a single fixed resistor. The
trimpot should be connected between +Output and Common with its wiper
connected to the Trim pin as shown in Figure 3 below.
+INPUT
SHUTDOWN
CMOS
LOGIC
4.12k7
ꢎ/54054
SIGNAL
GROUND
ON/OFF
CONTROL
ꢎ).054
15.4k7
ꢁꢉK7
ꢄꢍꢀꢉ
CONTROLLER
POWER
42)-
,/!$
COMMON
4URNS
#/--/.
#/--/.
Figure 2A. Inverting On/Off Control Pin with an External CMOS Gate
Figure 3.Trim Connections Using a Trimpot
Dynamic control of the on/off function is best accomplished with a mechani-
cal relay or open-collector/open-drain drive circuit. The drive circuit should
be able to sink appropriate current when activated and withstand appropriate
voltage when deactivated.
A trimpot can be used to determine the value of a single fixed resistor
which can then be connected, as shown in Figure 4, between the Trim pin and
+Output to trim down the output voltage, or between the Trim pin and Common
to trim up the output voltage. Fixed resistors should have absolute TCR’s less
than 100ppm/oC to ensure stability.
The on/off control function, however, can be externally inverted so that
the converter will be disabled while the input voltage is ramping up and then
"released" once the input has stabilized.
ꢎ/54054
4RIM
For a controlled start-up of one or more LSN-D12's, or if several output volt-
ages need to be powered-up in a given sequence, the On/Off Control pin can
be pulled high (external pull-up resistor, converter disabled) and then driven
low with an external open collector device to enable the converter.
ꢎ).054
$OWN
Note:
Install either a fixed
42)-
,/!$
trim-up resistor or a
fixed trim-down resis-
tor depending upon
desired output voltage.
4RIM
5P
#/--/.
Output Overvoltage Protection
#/--/.
LSN D12 SIP Series DC/DC converters do not incorporate output overvoltage
protection. In the extremely rare situation in which the device’s feedback loop
is broken, the output voltage may run to excessively high levels (VOUT = VIN). If it
is absolutely imperative that you protect your load against any and all possible
overvoltage situations, voltage limiting circuitry must be provided external to
the power converter.
Figure 4.Trim Connections Using Fixed Resistors
The equations below can be used as starting points for selecting specific trim-
resistor values. Recall, untrimmed devices are guaranteed to be 1% accurate.
Adjustment beyond the specified 10% adjustment range is not recommended.
www.murata-ps.com
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
MDC_LSN 16A D12 Models.B02 Page 6 of 13
LSN-16A D12 Models
Single Output, Non-Isolated, 12VIN, 0.75-5VOUT
16 Amp in DC/DCs SIP Packages
"T" Model LSN-T/16-D12
Trim Equations
This version of the LSN 16A series offers a special output voltage trimming
feature which is fully compatible with competitive units. The output voltage
may be varied from 0.75 to 5 Volts using a single external trim up resistor con-
nected from the Trim input to Output Common. If no trim resistor is attached
(Trim pin open), the output is 0.7525 Volts.
0.349
– X
RT UP (kΩ) =
VO – VO
NOM
LSN-0.75/16-D12: X = 3.09
The trim may also be adjusted using an external reference voltage con-
nected to the Trim input.
LSN-0.75/16-D12 cannot be trimed down
As with other trim adjustments, use a 1% metal film precision resistor with
low temperature coefficient ( 100 ppm/°C or less) mounted close to the con-
verter with short leads. Also be aware that the output accuracy is 2% (typical)
therefore you may need to vary this resistance slightly to achieve your desired
output setting.
2.21(VO – 0.7)
– X
– X
RT DOWN (kΩ) =
RT UP (kΩ) =
VO NOM – VO
1.547
VO – VO
NOM
The resistor trim up equation for the LSN-T/16-D12 is as follows:
10500
LSN-1/16-D12: X = 2.67
LSN-1.2/16-D12: X = 4.75
LSN-1.5/16-D12: X = 7.5
– 1000
RTRIMUP (Ω) =
VO – 0.7525
Where VO is the desired output voltage.
7.5(VO – 0.7)
The LSN-T/16-D12 fixed resistance values to set the output values are:
– X
– X
RT DOWN (kΩ) =
VO NOM – VO
VOUT
(typ.)
0.7525 1.0
1.2
1.5
1.8
2
2.5
3.3
5.0
5.25
RT UP (kΩ) =
RTRIM
(kΩ)
VO – VO
Open 41.424 22.46 13.05 9.024 7.417 5.009 3.122 1.472
NOM
LSN-1.8/16-D12: X = 21.5
LSN-2.5/16-D12: X = 16.2
LSN-3.3/16-D12: X = 12.1
LSN-5/16-D12: X = 7.5
CAUTION: To retain proper regulation, do not exceed the 5 Volt output.
Voltage Trim
The LSN-T/16-D12 may also be trimmed using an external voltage applied
between the Trim Input and Output Common. Be aware that the internal “load”
impedance looking into trim pin is approximately 5k7. Therefore, you may
have to compensate for this in the source resistance of your external voltage
reference.
Note: Resistor values are in kΩ. Accuracy of adjustment is subject to
tolerances of resistors and factory-adjusted, initial output accuracy.
VO = desired output voltage. VONOM = nominal output voltage.
The equation for this voltage adjustment is:
VTRIM = 0.7 –(0.0667 × (VO – 0.7525))
The LSN-T/16-D12 fixed trim voltages to set the output voltage are:
VOUT
(typ.)
0.7525 1.0
1.2
1.5
1.8
2
2.5
3.3
5.0
VTRIM Open 0.6835 0.67 0.65 0.63 0.617 0.583 0.53 0.4166
www.murata-ps.com
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
MDC_LSN 16A D12 Models.B02 Page 7 of 13
LSN-16A D12 Models
Single Output, Non-Isolated, 12VIN, 0.75-5VOUT
16 Amp in DC/DCs SIP Packages
Voltage Margining
Output Reverse Conduction
The LSN-T/16-D12 converter can serve as the power source for a production
test environment using voltage margining. This gives the capability to vary
the net output voltage up or down for stress and functional testing of a target
system over the expected power supply voltage range.
Many DC/DC's using synchronous rectification suffer from Output Reverse
Conduction. If those devices have a voltage applied across their output before
a voltage is applied to their input (this typically occurs when another power
supply starts before them in a power-sequenced application), they will either
fail to start or self destruct. In both cases, the cause is the "freewheeling" or
"catch" FET biasing itself on and effectively becoming a short circuit.
Voltage margining requires three external resistors and two switches – the
primary precision trim resistor and two voltage margining resistors. The
switches are typically low on-resistance FET transistors acting as switches.
Devices specifically designed for analog switch applications have effective
closed resistance of a few Ohms and often have a logic gate driving them.
LSN D12 SIP DC/DC converters do not suffer from Output Reverse Conduc-
tion. They employ proprietary gate drive circuitry that makes them immune to
applied output voltages.
Thermal Considerations and Thermal Protection
ꢎ6/54
$/7.
ꢎ/54054
ꢎ3%.3%
The typical output-current thermal-derating curves shown below enable
designers to determine how much current they can reliably derive from each
model of the LSN D12 SIP's under known ambient-temperature and air-flow
conditions. Similarly, the curves indicate how much air flow is required to reli-
ably deliver a specific output current at known temperatures.
26-
42)-
26-
The highest temperatures in LSN D12 SIP's occur at their output inductor,
whose heat is generated primarily by I2R losses. The derating curves were
developed using thermocouples to monitor the inductor temperature and vary-
ing the load to keep that temperature below +110°C under the assorted condi-
tions of air flow and air temperature. Once the temperature exceeds +115°C
(approx.), the thermal protection will disable the converter. Automatic restart
occurs after the temperature has dropped below +110°C.
50
,3.ꢀ4ꢁꢂꢃꢀ$ꢂꢄ
242)-
#/--/.
n6/54
Figure 5. LSN-T/16-D12 Voltage Margining
After installing the desired trim resistor, the constant voltage output on the
LSN-T/16-D12 may be adjusted up or down a fixed amount by installing sub-
trim voltage margining resistors as shown on the attached circuit. In effect, an
additional voltage divider is switched in one leg at a time to slightly raise or
lower the output voltage. Typical FET switches are the Maxim MAX4643 and
MAX4544 families.
All but the last two DUT's were vertical-mount models, and the direction of
air flow was parallel to the unit in the direction from pin 11 to pin 1.
As you may deduce from the derating curves and observe in the efficiency
curves on the following pages, LSN D12 SIP's maintain virtually constant
efficiency from half to full load, and consequently deliver very impressive
temperature performance even if operating at full load.
As with the primary trim resistor, by sure to mount these voltage margining
resistors and switches close to the converter with short leads. Be aware that
the effective output voltage is the result of all error sources including the trim
resistor accuracies and temperature coefficients. Also, the resulting trim resis-
tor from the equations is usually not a standard precision value therefore you
may have to parallel two resistors.
Lastly, when LSN D12 SIP's are installed in system boards, they are obvi-
ously subject to numerous factors and tolerances not taken into account here.
If you are attempting to extract the most current out of these units under
demanding temperature conditions, we advise you to monitor the output-
inductor temperature to ensure it remains below +110°C at all times.
CAUTION: Switch in only one resistor at a time to invoke voltage margin-
ing. Do not turn on both resistors simultaneously. Also, do not exceed the total
power output of the converter.
www.murata-ps.com
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
MDC_LSN 16A D12 Models.B02 Page 8 of 13
LSN-16A D12 Models
Single Output, Non-Isolated, 12VIN, 0.75-5VOUT
16 Amp in DC/DCs SIP Packages
Typical Performance Curves for LSN-16A D12 SIP Series
,3.ꢀꢉꢅꢊꢈꢁꢂꢃꢀ$ꢂꢄ
%FFICIENCY VSꢅ ,INE 6OLTAGE AND ,OAD #URRENT ꢄꢈ #
,3.ꢀꢉꢅꢊꢈꢁꢂꢃꢀ$ꢂꢄ
/UTPUT #URRENT VSꢅ !MBIENT 4EMPERATURE
ꢋ6ERTICAL MOUNTꢏ AIR FLOW DIRECTION FROM INPUT PINS TO OUTPUT PINSꢌ
c
ꢂꢂ
ꢂꢃ
ꢂꢄ
ꢂꢅ
ꢂꢁ
ꢆꢂ
ꢆꢃ
ꢆꢄ
ꢆꢅ
ꢆꢁ
ꢃꢂ
ꢀꢅ
ꢀꢆ
ꢀꢄ
ꢀꢃ
ꢀꢂ
ꢀꢁ
ꢀꢀ
ꢀꢉ
.ATURAL
#ONVECTION
6
). ꢑ ꢀꢉ6
ꢀꢉꢉ LFM
ꢁꢉꢉ LFM
ꢃꢉꢉ LFM
6
). ꢑ ꢀꢁ6
6
). ꢑ ꢀꢃ6
nꢃꢉ
ꢉ
ꢃꢉ
ꢄꢉ
ꢆꢉ
ꢅꢉ
ꢇꢉ
ꢈꢉ
ꢀꢉꢉ
ꢁ
ꢅ
ꢄ
ꢃ
ꢂ
ꢇꢁ
ꢇꢅ
ꢇꢄ
ꢇꢃ
!MBIENT 4EMPERATURE ꢆo#ꢇ
,OAD #URRENT ꢆ!MPSꢇ
,3.ꢀꢂꢁꢂꢃꢀ$ꢂꢄ
%FFICIENCY VSꢅ ,INE 6OLTAGE AND ,OAD #URRENT ꢄꢈ #
,3.ꢀꢂꢁꢂꢃꢀ$ꢂꢄ
/UTPUT #URRENT VSꢅ !MBIENT 4EMPERATURE
ꢋ6ERTICAL MOUNTꢏ AIR FLOW DIRECTION FROM INPUT PINS TO OUTPUT PINSꢌ
c
ꢀꢁ
ꢂꢂ
ꢂꢃ
ꢂꢄ
ꢂꢅ
ꢂꢁ
ꢆꢂ
ꢆꢃ
ꢆꢄ
ꢆꢅ
ꢀꢅ
ꢀꢆ
ꢀꢄ
ꢀꢃ
ꢀꢂ
ꢀꢁ
ꢀꢀ
ꢀꢉ
.ATURAL
#ONVECTION
ꢀꢉꢉ LFM
ꢁꢉꢉ LFM
6
). ꢑ ꢀꢉ6
6
). ꢑ ꢀꢁ6
ꢃꢉꢉ LFM
6
). ꢑ ꢀꢃ6
nꢃꢉ
ꢉ
ꢃꢉ
ꢄꢉ
ꢆꢉ
ꢅꢉ
ꢇꢉ
ꢈꢉ
ꢀꢉꢉ
ꢁ
ꢅ
ꢄ
ꢃ
ꢂ
ꢇꢁ
ꢇꢅ
ꢇꢄ
ꢇꢃ
!MBIENT 4EMPERATURE ꢆo#ꢇ
,OAD #URRENT ꢆ!MPSꢇ
,3.ꢀꢂꢅꢄꢁꢂꢃꢀ$ꢂꢄ
%FFICIENCY VSꢅ ,INE 6OLTAGE AND ,OAD #URRENT ꢄꢈ #
,3.ꢀꢂꢅꢄꢁꢂꢃꢀ$ꢂꢄ
/UTPUT #URRENT VSꢅ !MBIENT 4EMPERATURE
ꢋ6ERTICAL MOUNTꢏ AIR FLOW DIRECTION FROM INPUT PINS TO OUTPUT PINSꢌ
c
ꢀꢅ
ꢀꢁ
ꢂꢂ
ꢂꢃ
ꢂꢄ
ꢂꢅ
ꢂꢁ
ꢆꢂ
ꢆꢃ
ꢀꢅ
ꢀꢆ
ꢀꢄ
ꢀꢃ
ꢀꢂ
ꢀꢁ
ꢀꢀ
ꢀꢉ
.ATURAL
#ONVECTION
6
). ꢑ ꢀꢉ6
ꢀꢉꢉ LFM
ꢁꢉꢉ LFM
ꢃꢉꢉ LFM
6
). ꢑ ꢀꢁ6
6
). ꢑ ꢀꢃ6
nꢃꢉ
ꢉ
ꢃꢉ
ꢄꢉ
ꢆꢉ
ꢅꢉ
ꢇꢉ
ꢈꢉ
ꢀꢉꢉ
ꢁ
ꢅ
ꢄ
ꢃ
ꢂ
ꢇꢁ
ꢇꢅ
ꢇꢄ
ꢇꢃ
,OAD #URRENT ꢆ!MPSꢇ
!MBIENT 4EMPERATURE ꢆo#ꢇ
www.murata-ps.com
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
MDC_LSN 16A D12 Models.B02 Page 9 of 13
LSN-16A D12 Models
Single Output, Non-Isolated, 12VIN, 0.75-5VOUT
16 Amp in DC/DCs SIP Packages
Typical Performance Curves for LSN-16A D12 SIP Series
,3.ꢀꢂꢅꢈꢁꢂꢃꢀ$ꢂꢄ
/UTPUT #URRENT VSꢅ !MBIENT 4EMPERATURE
ꢋ6ERTICAL MOUNTꢏ AIR FLOW DIRECTION FROM INPUT PINS TO OUTPUT PINSꢌ
,3.ꢀꢂꢅꢈꢁꢂꢃꢀ$ꢂꢄ
%FFICIENCY VSꢅ ,INE 6OLTAGE AND ,OAD #URRENT ꢄꢈ #
c
ꢀꢅ
ꢀꢆ
ꢀꢄ
ꢀꢃ
ꢀꢂ
ꢀꢁ
ꢀꢀ
ꢀꢉ
ꢀꢄ
ꢀꢅ
ꢀꢁ
ꢂꢂ
ꢂꢃ
ꢂꢄ
ꢂꢅ
ꢂꢁ
ꢆꢂ
.ATURAL
#ONVECTION
ꢀꢉꢉ LFM
ꢁꢉꢉ LFM
ꢃꢉꢉ LFM
6
). ꢑ ꢀꢉ6
6
). ꢑ ꢀꢁ6
6
). ꢑ ꢀꢃ6
nꢃꢉ
ꢉ
ꢃꢉ
ꢄꢉ
ꢆꢉ
ꢅꢉ
ꢇꢉ
ꢈꢉ
ꢀꢉꢉ
!MBIENT 4EMPERATURE ꢆo#ꢇ
ꢁ
ꢅ
ꢄ
ꢃ
ꢂ
ꢇꢁ
ꢇꢅ
ꢇꢄ
ꢇꢃ
,OAD #URRENT ꢆ!MPSꢇ
,3.ꢀꢂꢅꢋꢁꢂꢃꢀ$ꢂꢄ
%FFICIENCY VSꢅ ,INE 6OLTAGE AND ,OAD #URRENT ꢄꢈ #
,3.ꢀꢂꢅꢋꢁꢂꢃꢀ$ꢂꢄ
/UTPUT #URRENT VSꢅ !MBIENT 4EMPERATURE
c
ꢀꢄ
ꢀꢅ
ꢀꢁ
ꢂꢂ
ꢂꢃ
ꢂꢄ
ꢂꢅ
ꢂꢁ
ꢆꢂ
ꢋ6ERTICAL MOUNTꢏ AIR FLOW DIRECTION FROM INPUT PINS TO OUTPUT PINSꢌ
ꢀꢅ
ꢀꢆ
ꢀꢄ
ꢀꢃ
ꢀꢂ
ꢀꢁ
ꢀꢀ
ꢀꢉ
.ATURAL
#ONVECTION
ꢀꢉꢉ LFM
6
). ꢑ ꢀꢉ6
ꢁꢉꢉ LFM
ꢃꢉꢉ LFM
6
). ꢑ ꢀꢁ6
6
). ꢑ ꢀꢃ6
nꢃꢉ
ꢉ
ꢃꢉ
ꢄꢉ
ꢆꢉ
ꢅꢉ
ꢇꢉ
ꢈꢉ
ꢀꢉꢉ
ꢁ
ꢅ
ꢄ
ꢃ
ꢂ
ꢇꢁ
ꢇꢅ
ꢇꢄ
ꢇꢃ
!MBIENT 4EMPERATURE ꢆo#ꢇ
,OAD #URRENT ꢆ!MPSꢇ
,3.ꢀꢄꢅꢈꢁꢂꢃꢀ$ꢂꢄ
%FFICIENCY VSꢅ ,INE 6OLTAGE AND ,OAD #URRENT ꢄꢈ #
,3.ꢀꢄꢅꢈꢁꢂꢃꢀ$ꢂꢄ
/UTPUT #URRENT VSꢅ !MBIENT 4EMPERATURE
ꢋ6ERTICAL MOUNTꢏ AIR FLOW DIRECTION FROM INPUT PINS TO OUTPUT PINSꢌ
c
ꢀꢃ
ꢀꢄ
ꢀꢅ
ꢀꢁ
ꢂꢂ
ꢂꢃ
ꢂꢄ
ꢀꢅ
ꢀꢆ
ꢀꢄ
ꢀꢃ
ꢀꢂ
ꢀꢁ
ꢀꢀ
ꢀꢉ
.ATURAL
#ONVECTION
6
). ꢑ ꢀꢉ6
ꢀꢉꢉ LFM
6
). ꢑ ꢀꢁ6
ꢁꢉꢉ LFM
ꢃꢉꢉ LFM
6
). ꢑ ꢀꢃ6
nꢃꢉ
ꢉ
ꢃꢉ
ꢄꢉ
ꢆꢉ
ꢅꢉ
ꢇꢉ
ꢈꢉ
ꢀꢉꢉ
ꢁ
ꢅ
ꢄ
ꢃ
ꢂ
ꢇꢁ
ꢇꢅ
ꢇꢄ
ꢇꢃ
,OAD #URRENT ꢆ!MPSꢇ
!MBIENT 4EMPERATURE ꢆo#ꢇ
www.murata-ps.com
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
MDC_LSN 16A D12 Models.B02 Page 10 of 13
LSN-16A D12 Models
Single Output, Non-Isolated, 12VIN, 0.75-5VOUT
16 Amp in DC/DCs SIP Packages
Typical Performance Curves for LSN-16A D12 SIP Series
,3.ꢀꢌꢅꢌꢁꢂꢃꢀ$ꢂꢄ
%FFICIENCY VSꢅ ,INE 6OLTAGE AND ,OAD #URRENT ꢄꢈ #
,3.ꢀꢌꢅꢌꢁꢂꢃꢀ$ꢂꢄ
/UTPUT #URRENT VSꢅ !MBIENT 4EMPERATURE
ꢋ6ERTICAL MOUNTꢏ AIR FLOW DIRECTION FROM INPUT PINS TO OUTPUT PINSꢌ
c
ꢀꢃ
ꢀꢄ
ꢀꢅ
ꢀꢁ
ꢂꢂ
ꢂꢃ
ꢀꢅ
ꢀꢆ
ꢀꢄ
ꢀꢃ
ꢀꢂ
ꢀꢁ
ꢀꢀ
ꢀꢉ
.ATURAL
#ONVECTION
6
). ꢑ ꢀꢉ6
ꢀꢉꢉ LFM
ꢁꢉꢉ LFM
ꢃꢉꢉ LFM
6
). ꢑ ꢀꢁ6
6
). ꢑ ꢀꢃ6
nꢃꢉ
ꢉ
ꢃꢉ
ꢄꢉ
ꢆꢉ
ꢅꢉ
ꢇꢉ
ꢈꢉ
ꢀꢉꢉ
ꢁ
ꢅ
ꢄ
ꢃ
ꢂ
ꢇꢁ
ꢇꢅ
ꢇꢄ
ꢇꢃ
!MBIENT 4EMPERATURE ꢆo#ꢇ
,OAD #URRENT ꢆ!MPSꢇ
,3.ꢀꢈꢁꢂꢃꢀ$ꢂꢄ
%FFICIENCY VSꢅ ,INE 6OLTAGE AND ,OAD #URRENT ꢄꢈ #
,3.ꢀꢈꢁꢂꢃꢀ$ꢂꢄ
/UTPUT #URRENT VSꢅ !MBIENT 4EMPERATURE
ꢋ6ERTICAL MOUNTꢏ AIR FLOW DIRECTION FROM INPUT PINS TO OUTPUT PINSꢌ
c
ꢀꢂ
ꢀꢆ
ꢀꢃ
ꢀꢈ
ꢀꢄ
ꢀꢉ
ꢀꢅ
ꢀꢇ
ꢀꢁ
ꢀꢅ
ꢀꢆ
ꢀꢄ
ꢀꢃ
ꢀꢂ
ꢀꢁ
ꢀꢀ
ꢀꢉ
.ATURAL
#ONVECTION
ꢀꢉꢉ LFM
6
). ꢑ ꢀꢉ6
ꢁꢉꢉ LFM
ꢃꢉꢉ LFM
6
). ꢑ ꢀꢁ6
6
). ꢑ ꢀꢃ6
nꢃꢉ
ꢉ
ꢃꢉ
ꢄꢉ
ꢆꢉ
ꢅꢉ
ꢇꢉ
ꢈꢉ
ꢀꢉꢉ
ꢁ
ꢅ
ꢄ
ꢃ
ꢂ
ꢇꢁ
ꢇꢅ
ꢇꢄ
ꢇꢃ
!MBIENT 4EMPERATURE ꢆo#ꢇ
,OAD #URRENT ꢆ!MPSꢇ
,3.ꢀ4ꢁꢂꢃꢀ$ꢂꢄ
%FFICIENCY VSꢅ ,INE 6OLTAGE AND ,OAD #URRENT ꢄꢈ #
,3.ꢀ4ꢁꢂꢃꢀ$ꢂꢄ
/UTPUT #URRENT VSꢅ !MBIENT 4EMPERATURE
ꢋ6/54 ꢑ ꢄ6ꢏ VERTICAL MOUNTꢏ AIR FLOW DIRECTION FROM INPUT TO OUTPUTꢌ
c
ꢀꢂ
ꢀꢃ
ꢀꢄ
ꢀꢅ
ꢀꢁ
ꢂꢂ
ꢀꢅ
ꢀꢆ
ꢀꢄ
ꢀꢃ
ꢀꢂ
ꢀꢁ
ꢀꢀ
ꢀꢉ
.ATURAL
#ONVECTION
ꢀꢉꢉ LFM
6
). ꢑ ꢀꢉ6
ꢁꢉꢉ LFM
ꢃꢉꢉ LFM
6
). ꢑ ꢀꢁ6
6
). ꢑ ꢀꢃ6
nꢃꢉ
ꢉ
ꢃꢉ
ꢄꢉ
ꢆꢉ
ꢅꢉ
ꢇꢉ
ꢈꢉ
ꢀꢉꢉ
ꢁ
ꢅ
ꢄ
ꢃ
ꢂ
ꢇꢁ
ꢇꢅ
ꢇꢄ
ꢇꢃ
!MBIENT 4EMPERATURE ꢆo#ꢇ
,OAD #URRENT ꢆ!MPSꢇ
www.murata-ps.com
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
MDC_LSN 16A D12 Models.B02 Page 11 of 13
LSN-16A D12 Models
Single Output, Non-Isolated, 12VIN, 0.75-5VOUT
16 Amp in DC/DCs SIP Packages
LSN-T/16-D12P
Ordering Information: LSN-T/16-D12P
Mechanical Specifications
This version of the LSN series is identical to all other LSN models except for
the specifications below. The LSN-T/16-D12P includes an adjustable output
voltage through the Trim input pin and positive polarity On/Off Control input.
Specification Summary
(TA = +25°C, 12 VIN, 5 VOUT, full load, typical unless noted)
ꢉꢊꢃꢁ -!8ꢊ
ꢋꢀꢉꢊꢆꢅꢌ
ꢁꢊꢉꢉ
ꢋꢄꢉꢊꢇꢉꢌ
Input Voltage Range
Input Current, VIN = 12 V
Input Current, VIN = 10V
On/Off Control
+10 to +14Vdc (12V nominal)
7.02 Amps
ꢉꢊꢁꢂ
ꢋꢄꢊꢇꢃꢌ
Case B8B
ꢉꢊꢀꢅ
ꢋꢃꢊꢂꢁꢌ
8.38 Amps
ꢉꢊꢉꢄ
ꢋꢀꢊꢁꢅꢌ
ꢉꢊꢄꢉ
ꢋꢀꢁꢊꢅꢌ
Positive logic only
ON = pin open to +VIN
OFF = 0 to +0.3V
ꢀ
ꢁ
ꢂ
ꢃ ꢄ
ꢆ ꢅ ꢇ ꢈ ꢀꢉꢀꢀ
ꢉꢊꢉꢅ
ꢋꢀꢊꢇꢌ
ꢉꢊꢉꢂꢉ Òꢉꢊꢉꢉꢀ $)!ꢊ
ꢋꢉꢊꢅꢆꢁ Òꢉꢊꢉꢁꢄꢌ
ꢉꢊꢉꢄ
ꢋꢀꢊꢁꢅꢌ
Output Voltage Range
Output Accuracy, 50% load
Output Current Range
Maximum Output Power
Output Ripple and Noise
Current Limit Inception
Line Regulation
+0.7525 to +5.5 Vdc (5V nominal)
2ꢀ
ꢉꢊꢀꢂ
ꢋꢂꢊꢂꢌ
ꢀꢊꢉꢉꢉ
ꢋꢁꢄꢊꢃꢉꢌ
ꢉꢊꢃꢉꢉ
ꢋꢀꢉꢊꢀꢆꢌ
ꢉꢊꢄꢉꢉ
ꢋꢀꢁꢊꢅꢉꢌ
0 to +16 Amps max.
88 Watts max.
ꢃ %1ꢊ 3 ꢊ
ꢉꢊꢀꢉꢉ ꢋꢁꢊꢄꢃꢌ
ꢄ %1ꢊ 3 ꢊ
ꢉꢊꢀꢉꢉ ꢋꢁꢊꢄꢃꢌ
40mVp-p (20 MHz BW)
31 Amps
Reverse Pin
,!9/54 0!44%2.
4/0 6)%7
ꢉꢊꢃꢁ
ꢋꢀꢉꢊꢆꢅꢌ
ꢉꢊꢂꢆ
ꢋꢈꢊꢀꢃꢌ
Vertical Mounting
(Tyco-compatible
package)
0.15ꢀ
Dimensions in inches (mm)
Load Regulation
0.25ꢀ
Efficiency (5VOUT, 12 VIN)
Efficiency (5VOUT, 10 VIN)
Efficiency (0.75VOUT, 12 VIN)
Operating Temperature Range
93ꢀ min, 95ꢀ typ.
93.5ꢀ min, 95.5ꢀ typ.
80ꢀ min, 82ꢀ typ.
See Derating Curve
I/O Connections
Pin
1
Function P59
+Output
Pin
Function P59 Pin
Function P59
No Pin
5
Common
Common
+Input
9
2
+Output
6
10
11
VOUT Trim
3
+Sense
7
On/Off Control
4
+Output
8
+Input
Trim Formulas
10500
VO – 0.7525
VTRIM = 0.7 –(0.0667 × (VO – 0.7525))
– 1000
RTRIMUP (Ω) =
Voltage Output Adjustment:
Resistor Output Adjustment:
VOUT
VOUT
(typ.)
0.7525 1.0
(typ.)
1.2
1.5
1.8
2
2.5
3.3
5.0
0.7525 1.0
1.2
1.5
1.8
2
2.5
3.3
5.0
VTRIM Open 0.6835 0.67 0.65 0.63 0.617 0.583 0.53 0.4166
RTRIM
(kΩ)
Open 41.424 22.46 13.05 9.024 7.417 5.009 3.122 1.472
www.murata-ps.com
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
MDC_LSN 16A D12 Models.B02 Page 12 of 13
LSN-16A D12 Models
Single Output, Non-Isolated, 12VIN, 0.75-5VOUT
16 Amp in DC/DCs SIP Packages
USA:
Mansfield (MA), Tel: (508) 339-3000, email: sales@murata-ps.com
Canada: Toronto, Tel: (866) 740-1232, email: toronto@murata-ps.com
UK: Milton Keynes, Tel: +44 (0)1908 615232, email: mk@murata-ps.com
Murata Power Solutions, Inc.
France: Montigny Le Bretonneux, Tel: +33 (0)1 34 60 01 01, email: france@murata-ps.com
Germany: München, Tel: +49 (0)89-544334-0, email: munich@murata-ps.com
11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A.
Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356
www.murata-ps.com email: sales@murata-ps.com ISO 9001 REGISTERED
03/27/08
Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other
technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply
the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without
Japan: Tokyo, Tel: 3-3779-1031, email: sales_tokyo@murata-ps.com
Osaka, Tel: 6-6354-2025, email: sales_osaka@murata-ps.com
Website: www.murata-ps.jp
China:
Shanghai, Tel: +86 215 027 3678, email: shanghai@murata-ps.com
Guangzhou, Tel: +86 208 221 8066, email: guangzhou@murata-ps.com
notice.
© 2008 Murata Power Solutions, Inc.
www.murata-ps.com
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
MDC_LSN 16A D12 Models.B02 Page 13 of 13
相关型号：
LSN-1.8/16-W3J-C
DC-DC Regulated Power Supply Module, 1 Output, Hybrid, ROHS COMPLIANT, SIP-11/10
MURATA
LSN-1/10-D12B-C
DC-DC Regulated Power Supply Module, 1 Output, 10W, Hybrid, ROHS COMPLIANT, SIP-9/11
MURATA
LSN-1/10-D12BH-C
DC-DC Regulated Power Supply Module, 1 Output, 10W, Hybrid, ROHS COMPLIANT, SIP-9/11
MURATA
LSN-1/10-D12H-C
DC-DC Regulated Power Supply Module, 1 Output, 10W, Hybrid, ROHS COMPLIANT, SIP-10/11
MURATA
©2020 ICPDF网 联系我们和版权申明