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| 型号： | OKL-T/3-W5N-C |
| 厂商： | Murata Power Solutions Inc |
| 文件页数： | 14/17页 |
| 文件大小： | 0K |
| 描述： | CONV DC/DC 9.9W 3A 5VIN SMD |
| 产品培训模块： | Okami Series |
| 产品目录绘图： | OKL Series |
| 特色产品： | Okami? Series PoL Converters |
| 标准包装： | 1 |
| 系列： | Okami™ OKL-T/3-W5 |
| 类型： | 非隔离（POL） |
| 输出数： | 1 |
| 电压 - 输入（最小）： | 2.4V |
| 电压 - 输入（最大）： | 5.5V |
| Voltage - Output 1： | 0.6 ~ 3.6 V |
| 电流 - 输出（最大）： | 3A |
| 电源（瓦） - 制造商系列： | 9.9W |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 12-SMD 模块 |
| 尺寸/尺寸： | 0.48" L x 0.48" W x 0.24" H（12.2mm x 12.2mm x 6.1mm） |
| 包装： | 标准包装 |
| 工作温度： | -40°C ~ 85°C |
| 效率： | 95.3% |
| 电源（瓦特）- 最大： | 9.9W |
| 产品目录页面： | 2720 (CN2011-ZH PDF) |
| 其它名称： | 811-2212-6 |
OKL-T/3-W5 Series
Programmable Output 3-Amp i LGA SMT PoLs
TO
OSCILLOSCOPE
CURRENT
PROBE
+VIN
+
L BUS
+VOUT
V IN
–
+
C BUS
C IN
C1
C2
SCOPE
R LOAD
–
C IN = 2 x 100μF, ESR < 700mΩ @ 100kHz
C BUS = 1000μF, ESR < 100mΩ @ 100kHz
L BUS = 1μH
Figure 4. Measuring Input Ripple Current
-VIN
-VOUT
C1 = 1μF
C2 = 10μF
LOAD 2-3 INCHES (51-76mm) FROM MODULE
Figure 5. Measuring Output Ripple and Noise (PARD)
Minimum Output Loading Requirements
Click here to view Application Note DCAN-61
All models regulate within speci?cation and are stable under no load to full
load conditions. Operation under no load might however slightly increase
output ripple and noise.
Thermal Shutdown
To prevent many over temperature problems and damage, these converters
include thermal shutdown circuitry. If environmental conditions cause the
temperature of the DC/DC’s to rise above the Operating Temperature Range
up to the shutdown temperature, an on-board electronic temperature
sensor will power down the unit. When the temperature decreases below
the turn-on threshold, the converter will automatically restart. There is a
small amount of hysteresis to prevent rapid on/off cycling.
CAUTION: If you operate too close to the thermal limits, the converter
may shut down suddenly without warning. Be sure to thoroughly test your
application to avoid unplanned thermal shutdown.
Temperature Derating Curves
The graphs in this data sheet illustrate typical operation under a variety of
conditions. The Derating curves show the maximum continuous ambient air
temperature and decreasing maximum output current which is accept-
able under increasing forced air?ow measured in Linear Feet per Minute
(“LFM”). Note that these are AVERAGE measurements. The converter will
accept brief increases in current or reduced air?ow as long as the average
is not exceeded.
Note that the temperatures are of the ambient air?ow, not the converter
itself which is obviously running at higher temperature than the outside
air. Also note that very low ?ow rates (below about 25 LFM) are similar to
“natural convection”, that is, not using fan-forced air?ow.
Murata Power Solutions makes Characterization measurements in a
closed cycle wind tunnel with calibrated air?ow. We use both thermocou-
ples and an infrared camera system to observe thermal performance.
CAUTION : These graphs are all collected at slightly above Sea Level
altitude. Be sure to reduce the derating for higher density altitude.
Output Voltage Sequencing
The OKL modules include a sequencing feature that enables users to
implement various types of output voltage sequencing in their applications.
This is accomplished via an additional sequencing pin. When not using the
sequencing feature, either tie the sequence pin to Vin or leave it uncon-
nected.
When an analog voltage is applied to the sequence pin, the output
voltage tracks this voltage until the output reaches the set-point voltage.
The ?nal value of the sequence voltage must be set higher than the set-
point voltage of the module. The output voltage follows the voltage on the
sequence pin on a one-to-one volt basis. By connecting multiple modules
together, multiple modules can track their output voltages to the voltage
applied on the sequence pin.
For proper voltage sequencing, ?rst, input voltage is applied to the
module. The On/Off pin of the module is left unconnected (or tied to GND
for negative logic modules or tied to Vin for positive logic modules) so that
the module is ON by default. After applying input voltage to the module,
a minimum 10msec delay is required before applying voltage on the
sequence pin. During this time, a voltage of 50mV (± 20 mV) is maintained
on the sequence pin. This delay gives the module enough time to complete
its internal powerup soft-start cycle. During the delay time, the sequence
pin should be held close to ground (nominally 50mV ± 20 mV). This is re-
quired to keep the internal opamp out of saturation thus preventing output
overshoot during the start of the sequencing ramp. By selecting resistor R1
according to the following equation
23500
R1 = ———— ohms,
Vin – 0.05
the voltage at the sequencing pin will be 50mV when the sequencing
signal is at zero. See ?gure 6 for R1 connection for the sequencing signal to
the SEQ pin.
http://www.murata-ps.com/datasheet/?http://
www.murata-ps.com/data/apnotes/dcan-61.pdf
www.murata-ps.com/support
MDC_OKL-T/3-W5 Series.B01 Page 14 of 17
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相关代理商/技术参数 |
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|---|---|
| OKL-T6-W12 | 制造商:MURATA-PS 制造商全称:Murata Power Solutions Inc. 功能描述:Programmable Output 6-Amp ILGA SMT PoLs |
| OKL-T-6-W5 | 制造商:MURATA 制造商全称:Murata Manufacturing Co., Ltd. 功能描述:Programmable Output 6-Amp iLGA SMT PoLs |
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| OKPA170CA | 制造商:NJSEMI 制造商全称:New Jersey Semi-Conductor Products, Inc. 功能描述:STAND-OFF VOLTAGE-30 TO 288 Volts 30000 Watt Peak Pulse Power |
| OKPA180CA | 制造商:NJSEMI 制造商全称:New Jersey Semi-Conductor Products, Inc. 功能描述:STAND-OFF VOLTAGE-30 TO 288 Volts 30000 Watt Peak Pulse Power |
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