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参数资料
| 型号： | L6238SQT |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 5 A, PQFP64 |
| 封装： | TQFP-64 |
| 文件页数： | 1/31页 |
| 文件大小： | 3465K |
| 代理商： | L6238SQT |
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L6238S
12V SENSORLESS SPINDLE MOTOR CONTROLLER
PRODUCT PREVIEW
12V OPERATION
3A, THREE-PHASE DMOS OUTPUT
(TOTAL Rdson 0.52
)
NO HALL SENSORS REQUIRED
DIGITAL BEMF PROCESSING
LINEAR OR PWM CONTROL
STAND ALONE OR EXT. DRIVER
SHOOT-THROUGH PROTECTION
THERMAL SHUTDOWN
DESCRIPTION
The L6238S is a Three-Phase, D.C. Brushless
Spindle Motor Driver system. This device features
both the Power and Sequence Sections.
Higher Power Applications can be activied with
the addition of an external Linear Driver, or by op-
erating the Internal Drivers 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 change without 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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