- 您现在的位置：买卖IC网 > PDF目录98051 > PDT012A0X3-SRZ (LINEAGE POWER LLC) 1-OUTPUT DC-DC REG PWR SUPPLY MODULE PDF资料下载
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： | 13/39页 |
| 文件大小： | 856K |
| 代理商： | PDT012A0X3-SRZ |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页当前第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页
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
LINEAGE POWER
20
Bit Position
4
3
2
1
0
Access
r/w
r
Function
PU
CMD CPR
POL
CPA
Default Value
1
0
1
PU: Sets the default to either operate any time input
power is present or for the ON/OFF to be controlled by
the analog ON/OFF input and the PMBus
OPERATION command. This bit is used together with
the CP, CMD and ON bits to determine startup.
Bit Value
Action
0
Module powers up any time power is
present regardless of state of the analog
ON/OFF pin
1
Module does not power up until
commanded by the analog ON/OFF pin
and the OPERATION command as
programmed in bits [2:0] of the
ON_OFF_CONFIG register.
CMD: The CMD bit controls how the device responds
to the OPERATION command.
Bit Value
Action
0
Module ignores the ON bit in the
OPERATION command
1
Module responds to the ON bit in the
OPERATION command
CPR: Sets the response of the analog ON/OFF pin.
This bit is used together with the CMD, PU and ON
bits to determine startup.
Bit Value
Action
0
Module ignores the analog ON/OFF pin,
i.e. ON/OFF is only controlled through the
PMBUS via the OPERATION command
1
Module requires the analog ON/OFF pin
to be asserted to start the unit
PMBus Adjustable Soft Start Rise Time
The soft start rise time can be adjusted in the module
via PMBus. When setting this parameter, make sure
that the charging current for output capacitors can be
delivered by the module in addition to any load current
to avoid nuisance tripping of the overcurrent protection
circuitry during startup. The TON_RISE command sets
the rise time in ms, and allows choosing soft start
times between 600μs and 9ms, with possible values
listed in Table 5. Note that the exponent is fixed at -4
(decimal) and the upper two bits of the mantissa are
also fixed at 0.
Table 5
Rise Time
Exponent
Mantissa
600μs
11100
00000001010
900μs
11100
00000001110
1.2ms
11100
00000010011
1.8ms
11100
00000011101
2.7ms
11100
00000101011
4.2ms
11100
00001000011
6.0ms
11100
00001100000
9.0ms
11100
00010010000
Output Voltage Adjustment Using the PMBus
The VOUT_SCALE_LOOP parameter is important for
a number of PMBus commands related to output
voltage trimming, margining, over/under voltage
protection and the PGOOD thresholds. The output
voltage of the module is set as the combination of the
voltage divider formed by RTrim and a 20k upper
divider resistor inside the module, and the internal
reference voltage of the module. The reference voltage
VREF is nominally set at 600mV, and the output
regulation voltage is then given by
REF
OUT
V
RTrim
V
×
+
=
20000
Hence the module output voltage is dependent on the
value of RTrim which is connected external to the
module. The information on the output voltage divider
ratio is conveyed to the module through the
VOUT_SCALE_LOOP parameter which is calculated
as follows:
RTrim
LOOP
SCALE
VOUT
+
=
20000
_
The VOUT_SCALE_LOOP parameter is specified
using the “Linear” format and two bytes. The upper five
bits [7:3] of the high byte are used to set the exponent
which is fixed at –9 (decimal). The remaining three bits
of the high byte [2:0] and the eight bits of the lower
byte are used for the mantissa. The default value of
the mantissa is 00100000000 corresponding to 256
(decimal), corresponding to a divider ratio of 0.5. The
maximum value of the mantissa is 512 corresponding
to a divider ratio of 1. Note that the resolution of the
VOUT_SCALE_LOOP command is 0.2%.
When PMBus commands are used to trim or margin
the output voltage, the value of VREF is what is
changed inside the module, which in turn changes the
regulated output voltage of the module.
The nominal output voltage of the module can be
adjusted with a minimum step size of 0.4% over a
±25% range from nominal using the VOUT_TRIM
command over the PMBus.
The VOUT_TRIM command is used to apply a fixed
offset voltage to the output voltage command value
相关PDF资料 |
PDF描述 |
|---|---|
| PDT012A0X3-SRDZ | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| PE3236-54 | PHASE LOCKED LOOP, PQCC44 |
| PE3236-21 | PHASE LOCKED LOOP, PQCC44 |
| PE33361MLIAA-Z | PHASE LOCKED LOOP, QCC48 |
| PE33361MLIAA | PHASE LOCKED LOOP, QCC48 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 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: |
| PDT0311 | 制造商:AGILENT 制造商全称:AGILENT 功能描述:Connectorized PIN Photodiodes |
| PDT0311-FC-A | 制造商:AGILENT 制造商全称:AGILENT 功能描述:Connectorized PIN Photodiodes |
| PDT0312 | 制造商:AGILENT 制造商全称:AGILENT 功能描述:Connectorized PIN Photodiodes |
| PDT0312-FC-A | 制造商:AGILENT 制造商全称:AGILENT 功能描述:Connectorized PIN Photodiodes |
发布紧急采购，3分钟左右您将得到回复。