- 您现在的位置：买卖IC网 > Sheet目录871 > OKX-T/5-D12P-C (Murata Power Solutions Inc)DC-DC CONVRT 0.7525-5.5V 5A 5SIP
OKX-T/5-D12 Series
Adjustable 5-Amp SIP Non-Isolated DC/DC Converters
output voltage to begin ramping up to its appropriate value. If the short-circuit
condition persists, another shutdown cycle will initiate. This rapid on/off cycling
+SENSE
+OUTPUT
is called “hiccup mode”. The hiccup cycling reduces the average output cur-
rent, thereby preventing excessive internal temperatures and/or component
damage. A short circuit can be tolerated inde?nitely.
C1
C2
SCOPE
R LOAD
Remote On/Off Control
The remote On/Off Control can be ordered with either logic type. Please refer to
-OUTPUT
C1 = 1μF
C2 = 10μF
LOAD 2-3 INCHES (51-76mm) FROM MODULE
Figure 3. Measuring Output Ripple and Noise (PARD)
CAUTION: If you operate too close to the thermal limits, the converter may
shut down suddenly without warning. Be sure to thoroughly test your applica-
tion 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 acceptable
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 thermocouples and an
infrared camera system to observe thermal performance.
CAUTION: If you routinely or accidentally exceed these Derating guidelines,
the converter may have an unplanned Over Temperature shut down. Also, these
the Connection Diagram on page 1 for On/Off connections.
Positive logic models are enabled when the On/Off pin is left open or is
pulled high to +Vin with respect to –Vin. Therefore, the On/Off control can be
disconnected if the converter should always be on. Positive-logic devices are
disabled when the On/Off is grounded or brought to within a low voltage (see
Speci?cations) with respect to –Vin.
Negative logic devices are on (enabled) when the On/Off pin is left open or
brought to within a low voltage (see Speci?cations) with respect to –Vin. The
device is off (disabled) when the On/Off is pulled high (see Speci?cations) with
respect to –Vin.
Dynamic control of the On/Off function must sink appropriate signal current
when brought low and withstand appropriate voltage when brought high.
Be aware too that there is a ?nite time in milliseconds (see Speci?cations)
between the time of On/Off Control activation and stable, regulated output. This
time will vary slightly with output load type and current and input conditions.
Output Capacitive Load
These converters do not require external capacitance added to achieve rated
speci?cations. Users should only consider adding capacitance to reduce
switching noise and/or to handle spike current load steps. Install only enough
capacitance to achieve your noise and surge response objectives. Excess
external capacitance may cause regulation problems and possible oscillation
or instability. Proper wiring of the Sense inputs will improve these factors under
capacitive load.
The maximum rated output capacitance and ESR speci?cation is given for a
capacitor installed immediately adjacent to the converter. Any extended output
wiring, smaller wire gauge or less ground plane may tolerate somewhat higher
capacitance. Also, capacitors with higher ESR may use a larger capacitance.
graphs are all collected at slightly above Sea Level altitude. Be sure to reduce
the derating for higher density altitude.
Pre-Biased Startup
Output Current Limiting
Current limiting inception is de?ned as the point at which full power falls below
the rated tolerance. See the Performance/Functional Speci?cations. Note par-
ticularly that the output current may brie?y rise above its rated value in normal
operation as long as the average output power is not exceeded. This enhances
reliability and continued operation of your application. If the output current is
too high, the converter will enter the short circuit condition.
Output Short Circuit Condition
When a converter is in current-limit mode, the output voltage will drop as the
output current demand increases. If the output voltage drops too low (approxi-
mately 98% of nominal output voltage for most models), the PWM controller
Some sections have external power already partially applied (possibly because
of earlier power sequencing) before POL power up. Or leakage power is pres-
ent so that the DC/DC converter must power up into an existing output voltage.
This power may either be stored in an external bypass capacitor or supplied by
an active source. These converters include a pre-bias startup mode to prevent
initialization problems.
This “pre-biased” condition can also occur with some types of program-
mable logic or because of blocking diode leakage or small currents passed
through forward biased ESD diodes. This feature is variously called “mono-
tonic” because the voltage does not decay or produce a negative transient
once the input power is applied and startup begins.
will shut down. Following a time-out period, the PWM will restart, causing the
www.murata-ps.com/support
MDC_OKX-T/5-D12 Series.A02 Page 14 of 15
发布紧急采购，3分钟左右您将得到回复。
相关PDF资料
OKX-T/5-W5P-C
DC-DC CONVRT 0.7525-3.6V 5A 5SIP
OKX2-T/16-D12P-C
CONVERT DC/DC SIP 80W 0.75-5.5V
OKX2-T/16-W5N-C
CONV DC/DC SIP 52.8W .75-3.6VOUT
OKY-T/3-D12P-C
CONV DC/DC 15W 12VIN 3AOUT
OKY-T/3-W5N-C
CONV DC/DC 10.9W 5VIN 3AOUT SMD
OKY2-T/16-D12P-C
CONV DC/DC 80W 12VIN 16AOUT SMD
OKY2-T/16-W5P-C
CONV DC/DC 52.8W 5VIN 16AOUT SMD
OTBH156KNPIR-F
CAP FILM 15UF 1.5KVDC QC TERM
相关代理商/技术参数
OKX-T/5-W5N-C
功能描述:DC/DC转换器 5Vin 0.75-3.6Vout 5A Neg logic SIP
RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸:
OKX-T/5-W5P-C
功能描述:DC/DC转换器 5Vin 0.75-3.6Vout 5A Pos logic SIP RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸:
OKX-T10
制造商:MURATA-PS 制造商全称:Murata Power Solutions Inc. 功能描述:Adjustable DOSA 10/16-Amp SIP DC/DC Converters
OKX-T10_1
制造商:MURATA-PS 制造商全称:Murata Power Solutions Inc. 功能描述:Adjustable DOSA 10/16-Amp SIP DC/DC Converters
OKX-T10-T16-D12
制造商:MURATA-PS 制造商全称:Murata Power Solutions Inc. 功能描述:Adjustable DOSA 10/16-Amp SIP DC/DC Converters
OKX-T10-T16-W5
制造商:MURATA-PS 制造商全称:Murata Power Solutions Inc. 功能描述:Adjustable DOSA 10/16-Amp SIP DC/DC Converters
OKX-T16-W5
制造商:MURATA-PS 制造商全称:Murata Power Solutions Inc. 功能描述:Adjustable DOSA 10/16-Amp SIP DC/DC Converters
OKX-T3-D12
制造商:MURATA-PS 制造商全称:Murata Power Solutions Inc. 功能描述:Adjustable 3-Amp SIP Non-Isolated DC/DC Converters