L297 Integrated Circuit Chip STEPPER MOTOR CONTROLLERS

STEPPER MOTOR CONTROLLERS

►NORMAL/WAWE DRIVE

►HALF/FULL STEP MODES

►CLOCKWISE/ANTICLOCKWISE DIRECTION

►SWITCHMODE LOAD CURRENT REGULATION ►PROGRAMMABLE LOAD CURRENT

►FEW EXTERNAL COMPONENTS

►RESET INPUT & HOME OUTPUT

►ENABLE INPUT

DESCRIPTION

The L297/A/D Stepper Motor Controller IC generates four phase drive signals for two phase bipolar and four phase unipolar step motors in microcomputer-controlled applications. The motor can be driven in half step, normal and wawe drive modes and on-chip PWM chopper circuits permit switchmode control of the current in the windings. A 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 microprocessor,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.

ABSOLUTE MAXIMUM RATINGS

TWO PHASE BIPOLAR STEPPER MOTOR CONTROL CIRCUIT

PIN CONNECTION (Top view)

King--- Originator of ANTERWELL, engaged in the IC electronics industry in 1998 and establish ANTERWELL in 2004. The company is located in Shenzhen Huaqiang North, the largest electronic center in Asia. Our main business is the technical development and electronic products import and export business. Currently, we have branches in Hong Kong and Malaysia.

Up to now. ANTERWELL have more than 1,000,000 types of electronic components in stock. ANTERWELL has become one of the top choices for purchasing IC chips both domestically and internationally. King is a senior IC chip expert, sales engineer, and mentor, leading an elite team with customer first, quality first, honesty, trustworthiness, and mutual benefit. We look forward to cooperate with you to create a better future!

ANTERWELL’s main products include semiconductors, resistors, capacitors, diodes, inductors, connectors, transistors, sensors, etc. Involving the major well-known brands such like: TI, XILINX, FAIRCHILD, STM, MICRON, MICROCHIP, TDK, SAMSUNG, ON, NXP,IR,ADI, ATMEL,VISHAY,LINEAR etc.

ANTERWELL adheres to the development concept and purpose of "direct stock offer, excellent quality, favorable price, and sincere service", which is deeply recognized by domestic and foreign customers. Based on the long-term development goal, ANTERWELL provides customers with standardized, professional, and diversified high-quality services through a strong market service network. ANTEWRELL has multiple skilled and capable executives with a professional QC team and excellent sales team to win the high support and trust of the vast customer base! We provide the best quality, price and service.

ANTERWELL will be your best Partner.