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參數(shù)資料
| 型號： | L6238SQT |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 12V SENSORLESS SPINDLE MOTOR CONTROLLER |
| 中文描述： | 12V的無傳感器主軸電機控制器 |
| 文件頁數(shù)： | 1/31頁 |
| 文件大?。?/td> | 324K |
| 代理商： | L6238SQT |
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L6238S
12V SENSORLESS SPINDLE MOTOR CONTROLLER
PRODUCT PREVIEW
12V OPERATION
3A, THREE-PHASE DMOS OUTPUT
(TOTAL R
dson
0.52
)
NO HALL SENSORS REQUIRED
DIGITAL BEMFPROCESSING
LINEAR OR PWM CONTROL
STANDALONE OR EXT. DRIVER
SHOOT-THROUGH PROTECTION
THERMAL SHUTDOWN
DESCRIPTION
The L6238S is a Three-Phase, D.C. Brushless
Spindle MotorDriver system.This device features
boththe Powerand Sequence Sections.
Higher Power Applications can be activied with
the additionof an externalLinear Driver, or by op-
eratingthe InternalDrivers in PWM.
Motor Start-Up, without the use of Hall Sensors,
can be achieved either by an internal start-up al-
gorithm or by manually sequencing the Output
Drivers, using a variety of User-Defined Start-UP
Algorithms.
Protection features include Stuck Rotor\Backward
Rotation Detection and Automatic Thermal Shut-
down.
This is advanced information on a new product now in development or undergoing evaluation. Details are subject to changewithout notice.
October 1995
ZERO
CROSSING
DETECTOR
ALIGN + GO
START-UP
ONE-SHOT
SLEW-CTRL
PWM
LIN
VL
THERMAL
SHUTDOWM
OT-WARN
CHARGE
PUMP
CPUMP3
CPUMP1
CPUMP2
D95IN232
BIAS
POWER
STAGE
AV=4V/V
DIGITAL
DELAY
OUT B
OUT C
CTR TAP
CSA INPUT
GND
PWM
TIM
VANALOG
+
+
+
-
BEMF
SENSE
VPOWER
BRAKE
DELAY
RSENSE1
DRV
CNTL
TDLY(0)
+
-
CSA
OUT A
GATE DRIVE
GM COMP
SYSTEM
CLOCK
SYS CLOCK
RSENSE2
VCTRL
PWM
COMP
PWM/
SLEW
SEQUENCER
FALIGN
OUTPUT
ENABLE
RUN/
BRAKE
SEQ INCR
MONO/SEQ
CTRL
TDLY(1)
TDLY(2)
MONO
DET
MASK DLY
TOGGLE
DIVIDE
BY N
SPIN
SENSE
FMTR
SEL POL
BLOCK DIAGRAM
ORDERING NUMBERS:
L6238S (PLCC44)
L6238SQA (PQFP44)
L6238SQT (TQFP64)
PLCC44
PQFP44
TQFP64
1/31
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