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1334
EEWorld咨询电话：82357002，82350740－8068 邮件咨询：datasheet@eeworld.com.cn 器件描述：STEPPER MOTOR CONTROLLERS 器件厂商：STMICROELECTRONICS [STMicroelectronics] 厂商主页：http://www.st.com/ 文件大小：102.45KB 文件页数：11 PDF阅读：1334.pdf (点击阅读器件资料) 摘要： 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 August 1996 Symbol Parameter Value Unit V s Supply voltage 10 V V i Input signals 7V P tot Total power dissipation (T amb =70°C) 1 W T stg ,T j Storage and junction temperature -40 to + 150 °C ABSOLUTE MAXIMUM RATINGS 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 theprogrammer,is greatlyreduced. 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 DIP20 SO20 ORDERING NUMBERS : L297 (DIP20) L297D (SO20) 1/11 相关器件：L297 L297D

1334

EEWorld咨询电话：82357002，82350740－8068 邮件咨询：datasheet@eeworld.com.cn

器件描述：STEPPER MOTOR CONTROLLERS
器件厂商：STMICROELECTRONICS [STMicroelectronics]
厂商主页：http://www.st.com/
文件大小：102.45KB
文件页数：11
PDF阅读：1334.pdf (点击阅读器件资料)

摘要：
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
August 1996
Symbol Parameter Value Unit
V
s
Supply voltage 10 V
V
i
Input signals 7V
P
tot
Total power dissipation (T
amb
=70°C) 1 W
T
stg
,T
j
Storage and junction temperature -40 to + 150 °C
ABSOLUTE MAXIMUM RATINGS
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 theprogrammer,is greatlyreduced.
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
DIP20 SO20
ORDERING NUMBERS : L297 (DIP20)
L297D (SO20)
1/11

相关器件：L297 L297D

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