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參數(shù)資料
| 型號： | L6285S |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 3 CHANNELS MULTIPOWER SYSTEM |
| 中文描述： | 3通道移動電站系統(tǒng) |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 303K |
| 代理商： | L6285S |
L6285
3 CHANNELS MULTIPOWER SYSTEM
ADVANCE DATA
CHANNEL-A AND CHANNEL-B FOR UNIPO-
LAR STEPPER MOTORS
– LOWSIDE: R
DSON
= 1.2
– HIGH SIDE; R
DSON
= 1.2
CHANNEL-CFOR DC MOTORS
– LOWSIDE: R
DSON
= 1.7
– HIGH SIDE:R
DSON
= 1.2
CHOPPING MODE DRIVING FOR C.L. CUR-
RENT CONTROL ON CHA AND CHB AND
O.L. VOLTAGECONTROL ON CHC.
INTERNAL FOUR DRIVINGLATCHES
16 BIT INTERNAL SHIFT REGISTER
DIRECTINTERFACE TO
μ
P
SERIALDRIVING SEQUENCE LOADING
CMOS COMPATIBLE INPUTS
PRE-ALARMOUTPUT SIGNAL
THERMAL SHUTDOWN
DESCRIPTION
This Combo Motor Driver uses large scale inte-
gration to incorporate several functions into the
same chip.
1) Two unipolar steppermotor driver
2) A full bridge DC motordriver
BLOCK DIAGRAM
3) Serial microprocesor interface
The power output stages are DMOS and the input
can be interfaced to a CMOS Microprocessor
logic.
The phase current in the unipolar stepper motor
windings is controlled by two external sensing re-
sistors in fixed frequency choppingmode. The os-
cillator block provides clocks each other 180
°
out
of phase to the two stepper motor driver in order
to avoid symultaneous current peaks.
For the DC motor driver is used a bridge; the
RMS voltage to supply this motor is fixed by a
This is advanced informationon anew product now in development or undergoing evaluation.Details are subject to change without notice.
May 1994
ORDERING NUMBERS:
L6285
L6285S
PLCC44
SDIP42
MULTIPOWER BCD TECHNOLOGY
1/16
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