- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄69003 > L6260 (STMICROELECTRONICS) DISK DRIVE MOTOR CONTROLLER, 1.5 A, PQFP64 PDF資料下載
參數(shù)資料
| 型號： | L6260 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 運動控制電子 |
| 英文描述： | DISK DRIVE MOTOR CONTROLLER, 1.5 A, PQFP64 |
| 封裝： | TQFP-64 |
| 文件頁數(shù)： | 6/30頁 |
| 文件大?。?/td> | 440K |
| 代理商： | L6260 |
第1頁第2頁第3頁第4頁第5頁當(dāng)前第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
CIRCUIT OPERATION
General
This device includes a sensorless spin driver,
VCM driver, power sequencing, actuator retrac-
tion with dynamic braking, serial interface for a
microprocessor and frequency locked loop for
speed control. The device is register based and
designed to operate via either 3V or 5V power
supply.
POR & Under Voltage
The L6260 has an on chip power monitoring sys-
tem that controls all aspects of powering up,
Power On Reset of the Logic (POR), low voltage
detection and power down sequencing. The cir-
cuitry consists of a Bandgap reference generator,
hysteresis comparitor (for low voltage detection)
and a POR timer circuit (which controls the dura-
tion of the reset).
Four external pins determine the behavior of this
circuit.
UV1 & UV2: These two pins are provided to
the user to connect to the supply voltages for
low voltage detection. The voltage on these
pins is compared to the internal Bandgap volt-
age to determine if a low voltage on one of the
supply pins has been detected. The comparitor
has built in hysteresis to reduce the effects of
noise on the supply lines triggering a false
POR. In other words, if either one of these in-
puts falls below 1.25V then the supply is re-
garded as being "under voltage". Normally one
of these pins will be connected to allow a sens-
ing of a 3V supply and the other to the 5V sup-
ply but this is arbitrary
POR_DLY: This is a pin from which a capacitor
can be connected to ground. This sets the du-
ration of the reset state of the this chip. On
power up, an internal current source charges
the capacitor with a current of approximately
2mA. When the voltage on this pin reaches the
bandgap voltage, the chip comes out of its re-
set state. The duration of this reset is deter-
mined by the size of an external capacitor to
ground.
POR: The POR pin is an output from the chip
for resetting other devices.
Frequency Locked Loop Fine Error Counter
(Reg 7)
This register contains the error detected between
the "fine" counter value of the FLL and the actual
spindle rotation time (in either mechanical or elec-
trical mode).
Reg: 7
Name: FLL Fine Error Counter Register
Type: Read Only
BIT
LABEL
DESCRIPTION
@POR
0
FINEC BIT 0
FLL Fine error count LSB
0
1
FINEC BIT 1
0
2
FINEC BIT 2
0
3
FINEC BIT 3
0
4
FINEC BIT 4
0
5
FINEC BIT 5
0
6
FINEC BIT 6
0
7
FINEC BIT 7
0
8
FINEC BIT 8
0
9
FINEC BIT 9
0
10
FINEC BIT 10
0
11
FINEC BIT 11
FLL Fine error count MSB
0
L6260
14/30
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| L6561I | 0.7 A POWER FACTOR CONTROLLER, PDIP8 |
| L6561C | 0.7 A POWER FACTOR CONTROLLER, PDIP8 |
| L6561DI | 0.7 A POWER FACTOR CONTROLLER, PDSO8 |
| L6561DC | 0.7 A POWER FACTOR CONTROLLER, PDSO8 |
| L6562AD | 0.8 A POWER FACTOR CONTROLLER, PDSO8 |
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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。