L6268

更新时间： 2025-08-30 22:47:23

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		运动控制电子器件信号电路电动机控制信息通信管理驱动
页数	文件大小	规格书
17页	111K
描述
12V DISK DRIVE SPINDLE & VCM, POWER & CONTROL “COMBO”

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L6268 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Obsolete	零件包装代码：	QFP
包装说明：	LQFP, QFP44,.47SQ,32	针数：	44
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.84
Is Samacsys：	N	模拟集成电路 - 其他类型：	VOICE COIL MOTOR CONTROLLER
JESD-30 代码：	S-PQFP-G44	JESD-609代码：	e4
长度：	10 mm	功能数量：	1
端子数量：	44	最高工作温度：	70 °C
最低工作温度：		最大输出电流：	2.1 A
封装主体材料：	PLASTIC/EPOXY	封装代码：	LQFP
封装等效代码：	QFP44,.47SQ,32	封装形状：	SQUARE
封装形式：	FLATPACK, LOW PROFILE	峰值回流温度（摄氏度）：	NOT SPECIFIED
电源：	5,12 V	认证状态：	Not Qualified
座面最大高度：	1.6 mm	子类别：	Motion Control Electronics
最大供电电压 (Vsup)：	5.5 V	最小供电电压 (Vsup)：	4.5 V
标称供电电压 (Vsup)：	5 V	表面贴装：	YES
技术：	BICMOS	温度等级：	COMMERCIAL
端子面层：	Nickel/Palladium/Gold (Ni/Pd/Au)	端子形式：	GULL WING
端子节距：	0.8 mm	端子位置：	QUAD
处于峰值回流温度下的最长时间：	NOT SPECIFIED	宽度：	10 mm
Base Number Matches：	1

L6268 数据手册

L6268

12V DISK DRIVE SPINDLE & VCM, POWER

& CONTROL “COMBO”

PRODUCT PREVIEW

GENERAL

12V (+/- 10%) OPERATION.

BICMOS TECHNOLOGY

MINIMUM EXTERNAL COMPONENTS

BICMOS + VERTICAL DMOS (1.5mm)

VCM DRIVER

1.5A DRIVE CAPABILITY

0.9W TOTAL BRIDGE IMPEDANCE AT 25°C

LINEARMODE

PHASE SHIFT MODULATION (PWM MODE)

INSTANTANEOUS, (GLICH FREE) SWITCH

BETWEEN THE 2 MODES

TQFP44 (10x10mm with slug)

ORDERING NUMBER: L6268

CLASS AB OUTPUT DRIVERS

ZERO CROSSOVERDISTORSION

14 BIT DAC DEFINE OUTPUT CURRENT

SELECTABLE TRANSCONDUCTANCE

4 PROGRAMMABLE PARKING VOLTAGE

DYNAMIC BRAKE

LOW VOLTAGESENSE

3.3V INPUT LOGIC COMPATIBILITY

THERMAL SHUTDOWN AND PRETHERMAL

WARNING

SPINDLE DRIVER

2.0A DRIVE CAPABILITY

DESCRIPTION

0.8W TOTAL BRIDGE IMPEDANCE AT 25°C

BEMF, INTERNAL OR EXTERNAL, PROC-

ESSING

SENSOR-LESSMOTOR COMMUTATION

PROGRAMMABLE COMMUTATION PHASE

DELAY

LINEAR MODE AND CONSTANT TOFF PWM

OPERATIONMODE

The L6268 integratesinto 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 capabilityprovides

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

componentsrequired.

INTERNAL FREQUENCY LOCKED LOOP

SPEED CONTROL (FLL)

BEMF RECTIFICATION DURING RETRACT

BUILT-IN ALIGNAMENT&GOSTART-UP

INDUCTIVE SENSING START UP OPTION

RESYNCHRONIZATION

DYNAMIC & REVERSE BRAKE

CONTROLLABLE OUTPUT SLEW RATE

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 highpower DMOS outputstage.

OTHER FUNCTIONS

12V AND 5V MONITORING WITH EXTERNAL

SET TRIP POINTS AND HYSTERESIS

POWER UP/DOWN SEQUENCING

April 1999

1/17

This is preliminary information on a new product now in development. Details are subject to change without notice.

12 3 4 5 6 7...17

中文翻译

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与L6268相关器件

型号	品牌	获取价格	描述	数据表
L6269	STMICROELECTRONICS	获取价格	12V DISK DRIVE SPINDLE & VCM, POWER & CONTROL
L627	HUBBELL	获取价格	L Die, Index 627.
L6270	STMICROELECTRONICS	获取价格	MILLI-ACTUATOR DRIVER
L6271	STMICROELECTRONICS	获取价格	MILLI-ACTUATOR DRIVER
L6275	STMICROELECTRONICS	获取价格	5V DISK DRIVE SPINDLE & VCM, POWER & CONTROL
L6280	STMICROELECTRONICS	获取价格	THREE CHANNELS MULTIPOWER DRIVER SYSTEM
L6285	STMICROELECTRONICS	获取价格	3 CHANNELS MULTIPOWER SYSTEM
L6285S	STMICROELECTRONICS	获取价格	3 CHANNELS MULTIPOWER SYSTEM
L6286	HAMAMATSU	获取价格	Subminiature LED
L6287	STMICROELECTRONICS	获取价格	POWER COMBO DRIVER

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