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參數(shù)資料
| 型號： | L6260 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 運(yùn)動控制電子 |
| 英文描述： | DISK DRIVE MOTOR CONTROLLER, 1.5 A, PQFP64 |
| 封裝： | TQFP-64 |
| 文件頁數(shù)： | 15/30頁 |
| 文件大?。?/td> | 440K |
| 代理商： | L6260 |
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A Synthetic Hall output is also provided from this
chip once per electrical or BEMF crossing.
Using the remote current sensing of the Spin-
dle current
The remote current sensing allows the connection
of the power drivers directly to ground. The bene-
fit here is the elimination of the external sense re-
sistor.
Under normal operation there is a 500:1 differ-
ence between the current seen on the sense pin
and the current in the spindle power drivers. At
start up this ratio is changed to 2500:1 (five time
the normal operation). The recommended voltage
at the sense pin is approximately one volt.
Desired period
between zero crossings
Course counter
counting down
Fine counter
counting down
Zero crossing
expected here
Course counter
counting down
Fine counter
counting down
FLL Course
register value
FLL Fine
register value
"Previous" zero
crossing
Time
e.g. Actual
zero crossing
e.g. Actual
zero crossing
Actual error between expected zero crossing
and actual zero crossing. This value is fed into
the charge pump to either speed up or slow down the rotation.
D94IN098
Counter value
Figure 9.
SYSTEM
STATUS
(REG 0)
MECH CYCLE
ELEC CYCLE
BEMF CYCLE
MASK
DELAY
SPIN
CONTROL
(REG 2)
SYSTEM
CONTROL
(REG 3)
SPIN ENABLE
RESET
INC STATE
RUN/SEARCH
SPIN GAIN
8/12 POLE
BRAKE/BI/TRI
SPEED CONTROL
ELEC/MECH
CONTROL
LOGIC
12
FREQUENCY
LOCKED
LOOP
FLL SATURATION
FLL UP
FLL DOWN
FLL FINE
(REG 5)
FLL COURSE
(REG 4)
D94IN099
+
-
HIGH
SIDE
PREDRIVER
LOW
SIDE
PREDRIVER
BEMF
DETECT
I SENSE
N-MOS
Figure 10.
L6260
22/30
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L6261 | 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 |
| L62622.6 | 制造商:STMicroelectronics 功能描述: |
| L6268 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:12V DISK DRIVE SPINDLE & VCM, POWER & CONTROL “COMBO” |
| L6269 | 制造商:STMicroelectronics 功能描述:L6269 - Trays |
| L6269TR | 制造商:STMicroelectronics 功能描述:12V SMART POWER COMBO - Tape and Reel |
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