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L297 Datasheet

  • L297

  • STEPPER MOTOR CONTROLLERS

  • 104.64KB

  • 11頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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L297
L297D
STEPPER MOTOR CONTROLLERS
NORMAL/WAWE DRIVE
HALF/FULL STEP MODES
CLOCKWISE/ANTICLOCKWISE DIRECTION
SWITCHMODE LOAD CURRENT REGULA-
TION
PROGRAMMABLE LOAD CURRENT
FEW EXTERNAL COMPONENTS
RESET INPUT & HOME OUTPUT
ENABLE INPUT
DESCRIPTION
The L297/A/D Stepper Motor Controller IC gener-
ates four phase drive signals for two phase bipolar
and four phase unipolar step motors in microcom-
puter-controlled applications. The motor can be
driven in half step, normal and wawe drive modes
and on-chip PWM chopper circuits permit switch-
mode control of the current in the windings. A
ABSOLUTE MAXIMUM RATINGS
Symbol
V
s
V
i
P
tot
T
stg
, T
j
Supply voltage
Input signals
Total power dissipation (T
amb
= 70
擄
C)
Storage and junction temperature
Parameter
Value
10
7
1
-40 to + 150
Unit
V
V
W
擄
C
DIP20
SO20
ORDERING NUMBERS
: L297 (DIP20)
L297D (SO20)
feature of this device is that it requires only clock,
direction and mode input signals. Since the phase
are generated internally the burden on the micro-
processor, and the programmer, is greatly reduced.
Mounted in DIP20 and SO20 packages, the L297
can be used with monolithic bridge drives such as
the L298N or L293E, or with discrete transistors
and darlingtons.
TWO PHASE BIPOLAR STEPPER MOTOR CONTROL CIRCUIT
August 1996
1/11

L297 產(chǎn)品屬性

  • 通孔

  • 7.1mm

  • PDIP

  • 25.4 x 7.1 x 2.68mm

  • 步進電機驅(qū)動器

  • 20

  • -40 °C

  • 7 V

  • 4.75 V

  • +150 °C

  • 25.4mm

  • 2.68mm

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