- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄43900 > L6275 (STMICROELECTRONICS) VOICE COIL MOTOR CONTROLLER, 2.1 A, PQFP44 PDF資料下載
參數(shù)資料
| 型號： | L6275 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 運動控制電子 |
| 英文描述： | VOICE COIL MOTOR CONTROLLER, 2.1 A, PQFP44 |
| 封裝： | 10 X 10 MM, TQFP-44 |
| 文件頁數(shù)： | 1/17頁 |
| 文件大?。?/td> | 170K |
| 代理商： | L6275 |
GENERAL
5V (+/- 10%) OPERATION.
REGISTER BASED ARCHITECTURE
MINIMUM EXTERNAL COMPONENTS
BICMOS + VERTICAL DMOS (1.5mm)
VCM DRIVER
1.5A DRIVE CAPABILITY
0.9
TOTAL BRIDGE IMPEDANCE AT 25°C
LINEAR MODE
PHASE SHIFT MODULATION (PWM MODE)
INSTANTANEOUS, (GLICH FREE) SWITCH
BETWEEN THE 2 MODES
CLASS AB OUTPUT DRIVERS
ZERO CROSSOVER DISTORSION
14 BIT DAC DEFINE OUTPUT CURRENT
SELECTABLE TRANSCONDUCTANCE
4 PROGRAMMABLE PARKING VOLTAGE
DYNAMIC BRAKE
SPINDLE DRIVER
2.0A DRIVE CAPABILITY
0.8
TOTAL BRIDGE IMPEDANCE AT 25°C
BEMF, INTERNAL OR EXTERNAL, PROC-
ESSING
SENSOR-LESS MOTOR COMMUTATION
PROGRAMMABLE COMMUTATION PHASE
DELAY
LINEAR MODE AND CONSTANT TOFF PWM
OPERATION MODE
INTERNAL FREQUENCY LOCKED LOOP
SPEED CONTROL (FLL)
BEMF RECTIFICATION DURING RETRACT
BUILT-IN ALIGNAMENT&GO START-UP
INDUCTIVE SENSING START UP OPTION
RESYNCHRONIZATION
DYNAMIC & REVERSE BRAKE
CONTROLLABLE OUTPUT SLEW RATE
OTHER FUNCTIONS
5V MONITORING WITH EXTERNAL SET
TRIP POINTS AND HYSTERESIS
POWER UP/DOWN SEQUENCING
LOW VOLTAGE SENSE
3.3V INPUT LOGIC COMPATIBILITY
THERMAL SHUTDOWN AND PRETHERMAL
WARNING
SYSTEM CLOCK WATCHDOG
DESCRIPTION
The L6275 integrates into a single chip both spin-
dle and VCM controllers as well as power stages.
The device is designed for 12V disk drive applica-
tion requiring up to 2.0A of spindle and 1.5A of
VCM peak currents.
A serial port with up to 25 MHz capability provides
easy interface to the microprocessor. A register
controlled Frequency Locked Loop (FLL) allows
flexibility in setting the spindle speed. Integrated
BEMF processing, digital masking, digital delay,
and sequencing minimize the number of external
components required.
Power On Reset (POR) circuitry is included. Upon
detection of a low voltage condition, POR is as-
serted, the internal registers are reset, and spin-
dle power circuitry is tri-stated. The BEMF is recti-
fied
providing
power
for
actuator retraction
followed by dynamic spindle braking.
The device is built in BICMOS technology allow-
ing dense digital/analog circuitry to be combined
with a high power DMOS output stage.
This is preliminary information on a new product now in development. Details are subject to change without notice.
April 1999
TQFP44 (10x10mm)
ORDERING NUMBER: L6275
L6275
5V DISK DRIVE SPINDLE & VCM, POWER
& CONTROL “COMBO”
PRODUCT PREVIEW
BICMOS TECHNOLOGY
1/17
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| L6382DTR | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO20 |
| L6460TR | STEPPER MOTOR CONTROLLER, PQFP64 |
| L6515 | BRUSH DC MOTOR CONTROLLER, 0.01 A, PQCC44 |
| L6560AD | 0.7 A POWER FACTOR CONTROLLER, PDSO8 |
| L6560AD013TR | 0.7 A POWER FACTOR CONTROLLER, PDSO8 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L6278-1.2 | 制造商:STMicroelectronics 功能描述:ELECTRONIC COMPONENT |
| L6280 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:THREE CHANNELS MULTIPOWER DRIVER SYSTEM |
| L6281B12D | 制造商:ST MICRO 功能描述:New |
| L6282-3.2E | 制造商:STMicroelectronics 功能描述:L6282-3.2E |
| L6283-1.2 | 制造商:STMicroelectronics 功能描述:ELECTRONIC COMPONENT |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。