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参数资料
| 型号： | PDT012A0X3-SRZ |
| 厂商： | LINEAGE POWER LLC |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 封装： | ROHS COMPLIANT PACKAGE-17 |
| 文件页数： | 16/39页 |
| 文件大小： | 856K |
| 代理商： | PDT012A0X3-SRZ |
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Preliminary Data Sheet
May 4, 2011
12A Digital Pico DLynxTM: Non-isolated DC-DC Power Modules
3 – 14.4Vdc input; 0.45Vdc to 5.5Vdc output; 12A output current
LINEAGE POWER
23
,
_
.
where IOUT_CORR is the temperature corrected value of
the current measurement, IREAD_OUT is the module
current measurement value, TIND is the temperature of
the inductor winding on the module. Since it may be
difficult to measure TIND, it may be approximated by an
estimate of the module temperature.
Measuring Output Voltage Using the PMBus
The module can provide output voltage information
using the READ_VOUT command. The command
returns two bytes of data all representing the mantissa
while the exponent is fixed at -10 (decimal).
During manufacture of the module, offset and gain
correction values are written into the non-volatile
memory of the module. The command
VOUT_CAL_OFFSET can be used to read and/or
write the offset (two bytes consisting of a 16-bit
mantissa in two’s complement format) while the
exponent is always fixed at -10 (decimal). The allowed
range for this offset correction is -125 to 124mV. The
command VOUT_CAL_GAIN can be used to read
and/or write the gain correction - two bytes consisting
of a five-bit exponent (fixed at -8) and a 11-bit
mantissa. The range of this correction factor is -0.125V
to +0.121V, with a resolution of 0.004V. The corrected
output voltage reading is then given by:
OFFSET
CAL
VOUT
GAIN
CAL
VOUT
ading
Initial
V
ading
Final
V
OUT
_
)]
_
1
(
)
Re
_
(
[
)
Re
_
(
+
×
=
Measuring Input Voltage Using the PMBus
The module can provide output voltage information
using the READ_VIN command. The command returns
two bytes of data in the linear format. The upper five
bits [7:3] of the high data form the two’s complement
representation of the mantissa which is fixed at –5
(decimal). The remaining 11 bits are used for two’s
complement representation of the mantissa, with the
11
th bit fixed at zero since only positive numbers are
valid.
During module manufacture, offset and gain correction
values are written into the non-volatile memory of the
module. The command VIN_CAL_OFFSET can be
used to read and/or write the offset - two bytes
consisting of a five-bit exponent (fixed at -5) and a11-
bit mantissa in two’s complement format. The allowed
range for this offset correction is -2 to 1.968V, and the
resolution is 32mV. The command VIN_CAL_GAIN
can be used to read and/or write the gain correction -
two bytes consisting of a five-bit exponent (fixed at -8)
and a 11-bit mantissa. The range of this correction
factor is -0.125V to +0.121V, with a resolution of
0.004V. The corrected output voltage reading is then
given by:
OFFSET
CAL
VIN
GAIN
CAL
VIN
ading
Initial
V
ading
Final
V
IN
_
)]
_
1
(
)
Re
_
(
[
)
Re
_
(
+
×
=
Reading the Status of the Module using the
PMBus
The module supports a number of status information
commands implemented in PMBus. However, not all
features are supported in these commands. A 1 in the
bit position indicates the fault that is flagged.
STATUS_BYTE : Returns one byte of information with
a summary of the most critical device faults.
Bit
Position
Flag
Default
Value
7
X
0
6
OFF
0
5
VOUT Overvoltage
0
4
IOUT Overcurrent
0
3
VIN Undervoltage
0
2
Temperature
0
1
CML (Comm. Memory Fault)
0
None of the above
0
STATUS_WORD : Returns two bytes of information
with a summary of the module’s fault/warning
conditions.
Low Byte
Bit
Position
Flag
Default
Value
7
X
0
6
OFF
0
5
VOUT Overvoltage
0
4
IOUT Overcurrent
0
3
VIN Undervoltage
0
2
Temperature
0
1
CML (Comm. Memory Fault)
0
None of the above
0
High Byte
Bit
Position
Flag
Default
Value
7
VOUT fault or warning
0
6
IOUT fault or warning
0
5
X
0
4
X
0
3
POWER_GOOD# (is negated)
0
2
X
0
1
X
0
X
0
STATUS_VOUT : Returns one byte of information
relating to the status of the module’s output voltage
related faults.
Bit
Flag
Default
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| PDT012A0X43-SRZ | 功能描述:DC/DC转换器 3-14.4Vin .6-5.5Vout 12A PosLogic Digital 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: |
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