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参数资料
| 型号： | LSN-5/10-D12B |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT 50 W DC-DC REG PWR SUPPLY MODULE |
| 封装： | SIP-9 |
| 文件页数： | 6/12页 |
| 文件大小： | 753K |
| 代理商： | LSN-5/10-D12B |
LSN-10A D12 Models
N O N - I S O L A T E D , 1 0 - 5 0 W S I P D C / D C C O N V E R T E R S
3
Input
Input Voltage Range
10.8-13.2 Volts (12V nominal)
Input Current:
Normal Operating Conditions
See Ordering Guide
Inrush Transient
0.08A2sec
Standby/Off Mode
8mA
Output Short-Circuit Condition
40mA average
Input Reected Ripple Current
100mAp-p
Input Filter Type
Capacitive (66F)
Overvoltage Protection
None
Reverse-Polarity Protection
None
Undervoltage Shutdown
None
On/Off Control
On = open (internal pull-down)
Off = +2.8V to +VIN (<3mA)
Output
VOUT Accuracy (50% load)
±1.25% maximum
Minimum Loading
No load
Maximum Capacitive Load
2000F (low ESR, OSCON)
VOUT Trim Range
±10%
Ripple/Noise (20MHz BW)
See Ordering Guide
Total Accuracy
3% over line/load/temperature
Efciency
See Ordering Guide
Overcurrent Detection and Short-Circuit Protection:
Current-Limiting Detection Point
17 (13-23.5) Amps
Short-Circuit Detection Point
98% of VOUT set
SC Protection Technique
Hiccup with auto recovery
Short-Circuit Current
400mA average
Dynamic Characteristics
Transient Response (50% load step)
100sec to ±2% of nal value
Start-Up Time:
VIN to VOUT and On/Off to VOUT
70msec for VOUT = 1V
16msec for VOUT = 1.1V to 5V
Switching Frequency:
1V/1.1V, 1.2V, 1.3 Models
105/125kHz ±10%
1.5V/1.8V, 2V Models
160/177kHz ±10%
2.5V, 3.3V, 5V Models
200kHz ±7.5%
Environmental
Calculated MTBF
2.3-1.8 million hours (1VOUT to 5VOUT)
Operating Temperature: (Ambient)
Without Derating (Natural convection) –40 to +48/64°C (model dependent)
With Derating
See Derating Curves
Thermal Shutdown
+115°C
Physical
Dimensions
See Mechanical Specications
Pin Dimensions/Material
0.03" (0.76mm) round copper with
tin-lead plate over nickel underplate
Weight
0.3 ounces (8.5g)
Flamability Rating
UL94V-0
Performance/Functional Specications
Typical @ TA = +25°C under nominal line voltage and full-load conditions unless noted.
All models are tested and specied with external 22F tantalum input and output capacitors.
These capacitors are necessary to accommodate our test equipment and may not be
required to achieve specied performance in your applications. All models are stable and
regulate within spec under no-load conditions.
See Technical Notes and Performance Curves for details.
The On/Off Control (pin 11) is designed to be driven with open-collector logic or the appli-
cation of appropriate voltages (referenced to Common, pins 5 and 6).
Output noise may be further reduced with the installation of additional external output
ltering. See I/O Filtering and Noise Reduction.
MTBF’s are calculated using Telcordia SR-332(Bellcore), ground xed, TA = +25°C, full
power, natural convection, +67°C pcb temperature.
T E C H N I C A L
N O T E S
Input Voltage:
Continuous or transient
15 Volts
On/Off Control (Pin 11)
+VIN
Input Reverse-Polarity Protection
None
Output Overvoltage Protection
None
Output Current
Current limited. Devices can
withstand sustained output short
circuits without damage.
Storage Temperature
–40 to +125°C
Lead Temperature (soldering, 10 sec.)
+300°C
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 Specications Table is not implied.
Absolute Maximum Ratings
Return Current Paths
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
(specically pin 6).
I/O Filtering and Noise Reduction
All models in the LSN D12 Series are tested and specied with external
22F 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, high-performance internal I/O caps, and will operate within spec
in most applications with no additional external components.
In particular, the LSN D12's input capacitors are specied for low ESR
and are fully rated to handle the units' input ripple currents. Similarly, the
internal output capacitors are specied for low ESR and full-range frequency
response. As shown in the Performance Curves, removal of the external 22F
tantalum output caps has minimal effect on output noise.
In critical applications, input/output ripple/noise may be further reduced using
ltering techniques, the simplest being the installation of external I/O caps.
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
appropriate 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 impedances can greatly affect system stability.Your specic system
conguration may necessitate additional considerations.
Output ripple/noise (also referred to as periodic and random deviations
or PARD) may be reduced below specied limits with the installation of
additional external output capacitors. Output capacitors function as true lter
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| LSN5A | 功能描述:限位开关 Limit SW/Single Pole Plug-in RoHS:否 制造商:Honeywell 触点形式:SPDT 执行器:Non-Contact 电流额定值:30 mA 电压额定值 AC: 电压额定值 DC:3.6 V 工作力:10 g IP 等级:IP 67 NEMA 额定值:1, 4, 12, 13 端接类型:4-Pin M12 Connector 安装:SMD/SMT |
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