L297| Datasheet

L297, L297_1, L297D, L297D013TR

Datasheet preview, take a look at Datasheets before downloading (Data Sheet is available on manufacturer site)

L297
STEPPER MOTOR CONTROLLERS

NORMAL/WAVE 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 Stepper Motor Controller IC generates four phase drive signals for two phase bipolar and four phase unipolar step motors in microcomputercontrolled applications. The motor can be driven in half step, normal and wawe drive modes and onchip PWM chopper circuits permit switch-mode control of the current in the windings. A feature of ABSOLUTE MAXIMUM RATINGS
Symbol Vs Vi Ptot Tstg, Tj Supply voltage Input signals Total power dissipation (Tamb = 70 C) Storage and junction temperature Parameter

DIP20

SO20

ORDERING NUMBERS : L297/1 (DIP20) L297D (SO20)

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 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.

Value 10 7 1 -40 to + 150

Unit V V W C

TWO PHASE BIPOLAR STEPPER MOTOR CONTROL CIRCUIT

December 2001

1/11