- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄370147 > FAN8007D Servo/Spindle Motor Controller/Driver PDF資料下載
參數(shù)資料
| 型號： | FAN8007D |
| 英文描述： | Servo/Spindle Motor Controller/Driver |
| 中文描述： | 伺服/主軸電機控制器/驅(qū)動器 |
| 文件頁數(shù)： | 80/191頁 |
| 文件大?。?/td> | 2018K |
| 代理商： | FAN8007D |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁當前第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁第126頁第127頁第128頁第129頁第130頁第131頁第132頁第133頁第134頁第135頁第136頁第137頁第138頁第139頁第140頁第141頁第142頁第143頁第144頁第145頁第146頁第147頁第148頁第149頁第150頁第151頁第152頁第153頁第154頁第155頁第156頁第157頁第158頁第159頁第160頁第161頁第162頁第163頁第164頁第165頁第166頁第167頁第168頁第169頁第170頁第171頁第172頁第173頁第174頁第175頁第176頁第177頁第178頁第179頁第180頁第181頁第182頁第183頁第184頁第185頁第186頁第187頁第188頁第189頁第190頁第191頁
FAN5201
10
P
If one AC adapter is connected when the battery is not
present, the overcurrent limit does not disable the converter
because Q1 acts as an inrush current limit.
If the battery voltage exceeds certain levels, internal protection
in the battery may open. To prevent this, the FAN5201
latches off Q1, Q3 and Q4 if the output voltage exceeds
approximately 110% of the setpoint.
The power converter is a synchronous buck for efficiency.
This topology is actually two-quadrant, and could potentially
draw current from the battery, boosting it high enough to
override the AC adapter. To prevent this backfeed, the
FAN5201 turns off the synchronous rectifier if the current into
the battery drops below 200mA (with an 18m
sense resis-
tor), utilizing instead the paralleled schottky.
If the internal overvoltage switch in the battery were to open
due to a high charge current producing a high voltage (due to
battery ESR), the voltage loop would take over. With the
voltage loop in control, the battery switch would close, and
the current could surge high until the current control loop
comes out of saturation. The FAN5201 prevents this type of
oscillation by means of a special loop controlling the error
amplifier of the current loop.
Battery Conditioning
With switch B1 off (see Figure 5), the notebook load can be
applied to the batteries even in the presence of the DC adapter.
This permits deep discharge of the batteries as part of the
battery conditioning process.
Battery Present
The presence of the battery can be detected by the host
microcontroller.
Logic Section
The FAN5201 uses serial data to control its operation. The
serial interface is compliant with the SMBus specification
(see “System Management Bus Specification”, Rev. 1.08).
Charger functionality is compatible with an extended subset
of the Intel/Duracell Smart Charger Specification for a level 2
charger. The FAN5201 uses the SMBus Read-Word, Write-
Word, and Block-Read protocols to communicate with the
host system that monitors the battery. The FAN5201 never ini-
tiates communication on the bus; it only receives commands
and responds to queries for status information. Figure 9
shows examples of the SMBus Write-Word and Read-Word
protocols. Each communication with the FAN5201 begins
with a start condition that is defined as a falling edge on SDA
with SCL high. The device address follows the start condi-
tion. The FAN5201 device address is 0001001b (b indicates
a binary number). Note that the address is only seven bits, and
the binary representation uses R/W as its least significant bit.
Programming a μP Interface for the FAN5201
The μP programmer must bear in mind that the FAN5201
operates as a slave device to the host μP; all communications
to the battery are
via
the host. Thus, in particular, the Charg-
ingCurrent(), ChargingVoltage(), and AlarmWarning() com-
mands (and thermistor signals for Ni based batteries) must
all be passed to the μP. There is no way to send them directly
to the charger.
Another important aspect for the programmer to be aware of
is that at power-up, all of the internal registers of the
FAN5201 are zeroed. Thus, in order to have the FAN5201
turn on, it is necessary to write to all of the DACs. It is also
recommended to write to the Control Signals Word before
writing to the DACs.
With these suggestions in mind, a possible flowchart for the
μP interface to the FAN5201 would be as shown in Figure 3.
In the first step, the battery charge requests are read; after
this the FAN5201 can be programmed. First, the FAN5201 is
left in Power Down until the programming has been success-
ful. Next, Charging Power, Current, and Voltage are set; the
FAN5201 will not operate until all three have been written.
The μP next checks that all of the data has been correctly
written; if not, the programming sequence is retried. Finally,
the Power Down signal is turned off.
Application Schematics and BOMs
Figure 4 shows the FAN5201 in a single battery pack system.
Figure 5 shows the FAN5201 in a two battery pack system.
In a two battery system, the host microcontroller must poll to
determine the state of each battery; and then a selector must
control the switches. Figure 4 shows a typical Smart Battery
system: for Ni based chemistries the temperature informa-
tion is handled directly by the μC. The μC continuously
monitors the SMBus; in case of communications breakdown
the μC detects this and takes appropriate action. For a NiMH
battery, a hardware overtemperature protection can be imple-
mented using a comparator on the thermistor line, and turn-
ing the softstart pin off.
Notice that Q1 through Q4 are drawn with the associated
intrinsic diode in Figure 4 and Figure 5.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| FAN8007DTF | Servo/Spindle Motor Controller/Driver |
| FAN800D2TF | Servo Motor Controller/Driver |
| FAN8024BDTF | MOTOR CONTROLLER |
| FAN8026D | |
| FAN8026DTF | MOTOR CONTROLLER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| FAN8007DTF | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Servo/Spindle Motor Controller/Driver |
| FAN8008 | 功能描述:馬達/運動/點火控制器和驅(qū)動器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| FAN800D2TF | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:2-Channel Motor Drive |
| FAN8010MP | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:1 Channel DC Motor Driver |
| FAN8010MPX | 功能描述:馬達/運動/點火控制器和驅(qū)動器 1CH Motor Drive IC RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。