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参数资料
| 型号： | L7200 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 运动控制电子 |
| 英文描述： | DISK DRIVE MOTOR CONTROLLER, 2.6 A, PQFP64 |
| 封装： | TQFP-64 |
| 文件页数： | 1/23页 |
| 文件大小： | 262K |
| 代理商： | L7200 |
1/23
L7200
September 1999
This is preliminary information on a new product now in development. Details are subject to change without notice.
GENERAL
s
12V (+/- 10%) OPERATION.
s
REGISTER BASED ARCHITECTURE
s
MINIMUM EXTERNAL COMPONENTS
s
BCD TECHNOLOGY
VCM DRIVER
s
1.7A DRIVE CAPABILITY
s
0.75
TOTAL BRIDGE IMPEDANCE AT 125°C
s
LINEAR MODE
s
PHASE SHIFT MODULATION (PWM MODE)
s
INSTANTANEOUS, (GLICH FREE) SWITCH
s
BETWEEN THE 2 MODES.
s
CLASS AB OUTPUT DRIVERS
s
ZERO CROSSOVER DISTORSION
s
14 BIT DAC DEFINE OUTPUT CURRENT
s
SELECTABLE TRANSCONDUCTANCE
s
RAMP LOADING & PARKING VOLTAGE
s
FULL INTERNAL VCM CALIBRATION
s
DYNAMIC BRAKE
SPINDLE DRIVER
s
2.5A DRIVE CAPABILITY
s
0.75
TOTAL BRIDGE IMPEDANCE AT
125°C
s
SMOOTHDRIVE ARCHITECTURE
s
SINUSOIDAL DRIVING, VOLTAGE MODE
s
BIPOLAR DRIVING
s
BEMF, INTERNAL OR EXTERNAL,
PROCESSING
s
SENSOR-LESS MOTOR COMMUTATION
s
PROGRAMMABLE COMMUTATION DELAY
s
FIXED FREQUENCY PWM OPERATION
MODE
s
INTERNAL FREQUENCY LOCKED LOOP
SPEED CONTROL (FLL)
s
PROGRAMMABLE DIGITAL FILTER FOR
SPEED CONTROL LOOP
s
BEMF RECTIFICATION DURING RETRACT
s
BUILT-IN INDUCTIVE SENSING START UP
s
DYNAMIC & REVERSE BRAKE
s
BACK ROTATION DETECTION
OTHER FUNCTIONS
s
12V, 5V , 3.3V AND 2.5V MONITORING WITH
POSSIBLE EXTERNAL SET TRIP POINTS
AND HYSTERESIS
s
POWER UP/DOWN SEQUENCING
s
8V, 3.3V AND 2.5V POSITIVE REGULATORS
s
3.3V LOGIC COMPATIBILITY
s
SHOCK SENSOR DETECTOR
s
INTERNAL POR DELAY TIME AT POWER ON
(80ms)
s
INTERNAL ISOFET FOR BEMF
RECTIFICATION
s
THERMAL SHUTDOWN AND PRETHERMAL
WARNING
DESCRIPTION
The L7200 Mozart integrates into a single chip both
spindle and VCM controllers as well as power stag-
es. The device is designed for 12V disk drive appli-
cation requiring up to 2.5A of spindle and 1.7A of
VCM peak currents. The device is based on the sinu-
soidal driving of the spindle motor. This is realized
digitally by the SMOOTHDRIVE SYSTEM.
A serial port with up to 40 MHz capability provides
easy interface to the microprocessor. A register con-
trolled Frequency Locked Loop (FLL) allows flexibility
in setting the spindle speed. Integrated BEMF pro-
cessing, digital filter, digital masking, digital delay,
and sequencing minimize the number of external
components required.
TQFP64
ORDERING NUMBER: L7200
PRODUCT PREVIEW
MOZART, 12V DISK DRIVE SPINDLE & VCM, POWER &
CONTROL “COMBO”
MULTIPOWER BCD TECHNOLOGY
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相关代理商/技术参数 |
参数描述 |
|---|---|
| L7203 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:SMOOTH DRIVE SPINDLE MOTOR FOR OPTICAL DRIVE APPLICATION WITH POWER INTEGRATED |
| L7203S | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:SMOOTH DRIVE SPINDLE MOTOR FOR OPTICAL DRIVE APPLICATION WITH POWER INTEGRATED |
| L7204 | 功能描述:重负荷电源连接器 PLUG-YC-#2/0-PC RoHS:否 制造商:Hirose Connector 系列:PS2 产品类型:Connectors 位置/触点数量: 端接类型:Crimp 触点材料: 触点电镀:Gold 电压额定值: 电流额定值:300 A 附件类型: |
| L7204A | 制造商:Agilent Technologies 功能描述:L7204A / Switch, SP4T, DC-4 GHz, unterminated, 24VDC (L-SERIES) |
| L7204B | 制造商:Agilent Technologies 功能描述:L7204B / Switch, SP4T, DC-20 GHz, unterminated, 24VDC (L-SERIES) |
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