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参数资料
| 型号： | L6285S |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 运动控制电子 |
| 英文描述： | STEPPER MOTOR CONTROLLER, 2 A, PDIP42 |
| 封装： | SDIP-42 |
| 文件页数： | 1/16页 |
| 文件大小： | 4214K |
| 代理商： | L6285S |
L6285
3 CHANNELS MULTIPOWER SYSTEM
CHANNEL-A AND CHANNEL-B FOR UNIPO-
LAR STEPPER MOTORS
– LOW SIDE: RDSON = 1.2
– HIGH SIDE ; RDSON = 1.2
CHANNEL-C FOR DC MOTORS
– LOW SIDE: RDSON = 1.7
– HIGH SIDE: RDSON = 1.2
CHOPPING MODE DRIVING FOR C.L. CUR-
RENT CONTROL ON CHA AND CHB AND
O.L. VOLTAGE CONTROL ON CHC.
INTERNAL FOUR DRIVING LATCHES
16 BIT INTERNAL SHIFT REGISTER
DIRECT INTERFACE TO
P
SERIAL DRIVING SEQUENCE LOADING
CMOS COMPATIBLE INPUTS
PRE-ALARM OUTPUT SIGNAL
THERMAL SHUTDOWN
DESCRIPTION
This Combo Motor Driver uses large scale inte-
gration to incorporate several functions into the
same chip.
1) Two unipolar stepper motor driver
2) A full bridge DC motor driver
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 chopping mode. 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
August 2003
ORDERING NUMBERS:
L6285
L6285S
PLCC44
SDIP42
MULTIPOWER BCD TECHNOLOGY
BLOCK DIAGRAM
1/16
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