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參數(shù)資料
| 型號： | FAN8732GX |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 光電元器件 |
| 英文描述： | Spindle motor and 5-CH actuator driver [Spindle(PWM), Sled 2-CH(PWM) 3-CH(Linear)] |
| 中文描述： | CD MOTOR DRIVER, PDSO42 |
| 封裝： | SSOP-42 |
| 文件頁數(shù)： | 13/20頁 |
| 文件大?。?/td> | 322K |
| 代理商： | FAN8732GX |
FAN8732G/FAN8732BG/FAN8732CG
13
2. Torque Control & Output Current Control Of Sled Motor(2-phase Step Motor)
1) By amplifying the voltage difference between V
REF
and IN4(or IN5) from Servo IC(or DSP), the Torque AMP produces
the input voltage(V
AMP
) which is input current command.
2) The output current (I
O
) is converted into the voltage (V
CS
) through the sense resistor (R
CS
) and compared with the V
AMP
.
3) The clock generator has the RS latch set periodically, this makes output driver on state and when the V
CS
and the V
AMP
is
equal the state becomes off.
4) By the negative feedback loop, the sensed output voltage V
CS
equals to the V
AMP
.
5) To avoid output upper and lower transistor’s short through, switch trick is needed. Turn on delay time is 1usec, turn off
delay time is 2usec and the phase delay time, when the current direction is changed, is 3usec.
6) The gain and limit current are calculated as below table.(Gvo=1[V/V])
8) The range of the torque voltage is as shown below when Rcs=0.5
,
R
EXT1
=0 and R
EXT2
=inf.
Torque limit current
Input/Output gain[A/V]
Remark
is gain scaler
+-
Torque AMP
V
REF
IN4(or IN5)
Driver
M
Rcs
Vcs
+
-
Io
PVCC3
V
AMP
+
-
LPF
R
S
Q
Clock
Generator
R
EXT1
R
EXT2
Drive Logic
Inside IC
I
OMAX
4
----------
REXT2
---------------------+
-------------
REXT2
---------------------+
Forward
Dead
zone+
Dead
zone-
Reverse
Current
[A]
0
IN4/IN5-V
REF
I
limit
40mV
-40mV
G
IO
=G
VO
/ R
CS
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| FAN8741 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Spindle Motor and 6-CH Driver |
| FAN8741G | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Spindle Motor and 6-CH Driver |
| FAN8741GX | 功能描述:馬達/運動/點火控制器和驅(qū)動器 POWER_CONVERSION 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(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| FAN8741MTF | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Spindle Motor and 6-CH Driver |
| FAN8741MTFX | 功能描述:IC PWM SPINDLE 6CH DRIVE 56TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 電機和風(fēng)扇控制器，驅(qū)動器 系列:- 產(chǎn)品變化通告:ATA683(3,4)PLQW Obsolescence 09/Aug/2012 標(biāo)準(zhǔn)包裝:1 系列:- 應(yīng)用:DC 電機控制器，無刷（BLDC），3 相 評估套件:可供 輸出數(shù):1 電流 - 輸出:100mA 電壓 - 負載:5.25 V ~ 20 V 電源電壓:5.25 V ~ 20 V 工作溫度:-40°C ~ 150°C 安裝類型:表面貼裝 封裝/外殼:48-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:48-VQFN（7x7） 包裝:剪切帶 (CT) 其它名稱:ATA6833-PLQWCT |
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