
English: 
Hi, my name is Yangbo.
I'm application engineer
supporting power modules.
Today, I'm going to demonstrate
how to use TI's digital power
software to quickly
configure the TPSM846C23.
The TPSM846C23 is TI's
first PMBus Power Module,
which is ideal for powering
high current, high performance
FPGAs and DSPs.
It can support up to 35 amps,
and it can be also powered
for up to 70 amps.
So what is PMBus.
PMBus is an I2-based
communication standard
for power supply management.
With the PMBus, you can modify
the configuration of the device
without changing any resistors
or capacitors on the board.
But for some power
designers, who
don't know much about
the PMBus, the protocols,

Chinese: 
大家好 我是来自德州仪器的
应用工程师王杨波
今天我将为大家展示
如何使用TI的
Fusion Digital Power Designer软件
来快速配置
TPSM846C23EVM
TPSM846C23是TI
第一款集成 PMBus的电源模块
TPSM846C23的
输入电压范围为
4.5伏到15伏
输出电压范围为
0.35伏到两伏
输出电流最高可达35个安培
两个模块并联输出时
输出电流最高可达到70个安培
同时它支持 PMBus 1.3命令
支持遥测功能
可以精确监控输出电压
输出电流以及温度
接下来我将为大家介绍

Chinese: 
板子的连接
大家可以看到
输入电源通过导线
连接到输入端子
电子负载通过导线
连接到输出端子
在输入输出端子的两侧
有两组测试点
用于监控输入电压和输出电压
在板子的最中央是
TPSM846C23这个模块
把EVM板通过
USB adapter 连接到电脑
当板子正确连接后
可以看到LED灯点亮
接下来我将启动软件
在启动软件之前
我将先给器件上电

English: 
it could take them lots
of time to learn it.
TI's Fusion Digital Power
software can help on this.
It provides graphical
user interface,
so we don't need to deal with
the complicated protocols.
It can help you to
accelerate your power design
and to save time
for your project.
Without any further
ado, let's get started.
First of all, I will talk a
little bit about the setup--
the connection of the board.
Then we'll concentrate on
how to use the software.
As you can see, we've
got a power supply
connecting to the input
terminal and a load connecting
to the up burn.
Next to the terminals
are the test points
for monitoring input
and output voltage.
And this is their
TPSM846C23 device.
The device is connected
to the computer
using a USB to GPL
interface, which can be also

Chinese: 
这样软件才能够识别到器件
接下来我将打开这个软件
软件启动的时候
它会自动识别器件
然后连接到电脑
然后我们 click to configure device
你可以看到
我们进入的configure 界面
在该界面的上方
一共有五个选项卡
我会逐一介绍每个选项卡
首先是 limits & On/Off 这个选项卡
第一组命令是Voltage Limits

English: 
order at ti.com.
When the connection is made,
the green led will turn on.
Before launching
the software, I am
going to turn on
the power supply,
so that the device can
respond to the software,
and the software can
recognize the device.
Now I'm going to
launch the software.
I have already downloaded
the software to my computer.
If you don't have it, you
can download it at ti.com.
As it comes up, it
will scan the device
and connect to the
computer automatically.
As you can see, there are five
tabs on top of the interface.
I will go through each of them.
Let's get started with
the limits and on/off.
The first group of commands
is the voltage limits.
You can change the
voltage-related parameters
in this area.
For example, here I want to
change the output voltage

English: 
to one volt. This
value should be
in the range of Vout
minimum and the Vout Max.
There are four options
for under voltage
and over voltage limits.
You can choose one of them,
according to your design.
Also, you can specify
how the device responds
to overvoltage fault
or undervoltage fault.
For example, you can choose
continual without interrupt.
Below are the voltage
margin commands.
These commands can be used
to test the reliability when
the device is running at
the extreme conditions.
Below the voltage limits
are the current limits
and the temperature limits.
You can modify the
parameters in the same way
like we did in the
voltage limits.
For the following
demonstration, here I
want to change the OC Warn
Limits to 12 amps and the OC

Chinese: 
该值必须位于
Vout Min 和 Vout Max 之间
接下来是四组选项
用于设置欠压和过压的阈值
你可以根据你的设计要求
选择其中一项
在右侧你可以设置器件
响应欠压和过压的方式
例如你可以选择
继续工作或者立即关断
接下来是 Vout MARGIN 这个命令
该命令可以用于测试
器件工作在最高输出电压
或者最低输出电压时的可靠性
在 Voltage Limits 下面
是Current Limits
和Temperature Limits两组命令
你可以用同样的方法
修改相应的参数

English: 
Fault Limit to 15 amps.
Next are the Turn
On and Off commands.
You'll know a common requirement
for power supplies in a system
is the sequencing.
For example, the power
rails of happy days
are required to start up or
shut down in a particular order,
and you can use these
commands to specify
how the device starts
up and shuts down.
In our case, we just have a
one device on our pathway,
so we don't need to worry
about the sequencing.
Now I'm going to set
the On/Off Configure.
Here, we choose
always converting.
If you choose
Control Pin Only, you
need to go to the
Monitoring Interface
and set the control pin high.
While you're finished with the
configuration of the board,

Chinese: 
为了便于后面的展示
我将输出电流Warn Limit改成12安培
将Fault Limit改成15个安培
Temperature Limits保持不变
接下来是turn on/off
命令组
对于电源而言
在一个系统中通常会要求
电源一定的时序上电或者掉电
例如FPJ的电源轨
有严格的上电和掉电时序要求
在这个区域你可以设置
Turn On Rise时间
和 Turn On Delay时间
从而配置器件的上电时序
同样的方式
你也可以配置器件的掉电时序
接下来我们要设置On/Off Configure
此处我们选择Always Coverting
如果你选择Control PIN Only
你就要到Monitor界面中

English: 
click right to Hardware.
Now we are seeing the
device is running,
and the upper
voltage is one volt.
One thing should be noted here.
If you are satisfied
with the changes,
you can save the
change to the device
by clicking Store Default All,
then go and click to confirm.
This change will be
permanent, and they
will be the values to record
when we execute the Restore
Default All.
Now let's move on
to the Advanced tab.
We will recommend, do not change
any parameters in this tab
unless you have some
special applications.
If so, please make
sure you exactly know
the meaning of the parameters.
The best way to do it is to
check the parameter order--

Chinese: 
将Control PIN设置成高电平
当你完成修改这些参数以后
点击Write To Hardware
可以看到器件已经开始工作
输出电压为1伏
如果你对器件的配置满意
你可以通过点击Store Default All
然后确认Store To NVM
这些配置会保存到器件中
值得注意的是
一旦执行Store Default All这个选项
这些配置将成为默认配置
接下来我将介绍Advanced
这个选项卡
关于这个选项卡
我们建议不要轻易修改
这个选项卡下面的参数
除非你有一些特殊的应用

English: 
the register in the datasheet.
Similar cautions should be
repeated in the All Configure
interface.
It displays all of the
configurable parameters,
and it also displays
other details
like the hex value
for each register.
It is quite useful
when programming.
Now let's move on to
the SMBALERT Mask tab.
There are seven
groups of signals.
This command can be used
to prevent these mixed
signals from asserting
the SMB alert signal.
Normally, when one
of them are set,
it will alert the host through
asserting the SMB alert signal.
Let's check out in
the Monitor interface.
For example, here, I'm going
to increase the output current.

Chinese: 
如果你需要修改这些参数
你可以在data sheet中
搜索相关的参数
或者搜索相关的寄存器
Data sheet会给出完整的解释
同样的道理
在All configure这个选项卡下面
我们也不建议随意修改 All configure
这个选项卡显示了
所有可配置的参数
同时它也显示了一些另外的信息
例如每个寄存器的Hex Value
这可以给你的编程
提供一定的帮助
接下来我们看一下
SMBAlert Mask这个选项卡
大家可以看到这个选项卡
下面一共有七组信号
如果其中的任意一个信号
被置位 SMBAlert这个信号就会置位
会通知主机

English: 
When the output current
hits the OC warning limit,
the SMB alert signal
will assert it.
So what if I don't want
to assert the signal?
Let's go back to the
Configure interface.
Now you can choose the
IOUT OC warning signal,
then click right to Hardware.
Let's check it out again in
the Monitoring interface.
Now I'm going to increase
the output current again.
As you can see,
the upper current
has hit the OC warning limit,
but the SMB alert signal
is still not asserted.
It wouldn't alert the
host to interrupt.
Now let's go back to
the Configure interface.

Chinese: 
如果你不想通知主机
你可以选择你想屏蔽的信号
例如我选择
IOUT OC Warning这个选项
然后我们点击write to hardware
然后我们进入monitor这个界面
接下来我将提高输出电流
可以看到此时Iout已经达到了
OC warning这个阈值
但是Smart ALERT始终没有置位
我们回到configure这个界面
如果我不选Iout OC Warning
又会发生什么
我们看一下

English: 
Let's move on to
the Device Info tab.
In this tab, it displays
the basic information
of the device.
One command is worth to know.
If your voltage is
higher than 1.65,
you should set the
Vout Scale Loop to 0.5.
In this case, we don't need
to change this parameter.
Now let's take a look at
the Monitoring interface.
In this interface, you
are able to monitor
the operation of the device.
You can monitor the status
register like we did before,
and you can also
monitor the real time
data of output voltage, output
current, and output power,
and the temperature.

Chinese: 
重新Clear Faults
接下来我重新提高输出电流
可以看到
一旦输出电流触发到OC Warning
SMBALERT
就会立即被置位
从而通知主机进行相应的操作
然后我们回到configure这个界面
可以看到
如果你勾选其中的某个信号
该信号就不会通知主机
接下来我们看一下
Device Info这个选项卡
该选项卡下面列出了
一些关于该器件的基本信息
这里值得注意的是

Chinese: 
当你的输出电压
大于1.65伏时
你需要将Vout Scale Loop
这个选项改成0.5
此处我们输出电压是1伏
所以我们不必将其改成0.5
这是所有关于configure界面的设置
接下来我们将介绍
monitor这个界面
在该界面下
你可以监控器件的运行状态
例如你可以看到
器件的一些标志位
同时你也可以看到
输出电压 输出电流
输出功率以及温度的实时数据
可以看到
目前输出电压工作在1伏
输出电流工作在11.29安
输出功率大概在11.19瓦

English: 
Now we are seeing the output
voltage practically one volt,
and the output current
is around 9.1 amps.
And the output power is 9 volts.
Now let's check out the
last interface, the Status.
In this interface,
it displays all
of the status in this device.
When there is something
wrong with the device,
the status will be highlighted.
For example, here, I am going
to increase the output current.
Let's check it out.
What happens?
Now I'm increasing
the output current.
As you can see, now
the IOUT OC Warning

English: 
has been highlighted,
which means that the output
current has hit the OC limit.
Let's keep increasing
the output current.
Now we are seeing the IOUT OC
Fault signal is highlighted,
which means the output current
has hit the OC fault limit.
That's all I want to
share with you guys.
For my information, please
go to ti.com/powermodules.
Thanks for watching.

Chinese: 
在这个界面下
你可以清楚的看到
器件的运行状况
接下来我们看一下
Status这个界面
该界面显示了
所有该器件支持的状态位
当输出存在一些状况时
你可以从这些标志位清楚地判断
器件的错误状态
例如此时输出电流
已经触发到了OC warning
可以看到Iout OC warning被高亮
接下来我将继续增加输出电流
大家可以看到
此时IOUT OC Fault标志位高亮
表示此时的输出电流
已经超过OC Fault的阈值
从这些标志位中
你可以清楚地判断
器件的运行状况

Chinese: 
综上所述
使用TI Fusion Digital
Power Design软件
可以快速配置
TPSM846C23EVM
更多详细信息
请上Ti.com.cn/powermodules
谢谢观看
